{ "lastUpdated": "2026-06-17", "stories": [ { "id": "ashok-leyland-hosur", "industry": "Automobile / Commercial Vehicles", "headline": "Precision in Every Milligram: Climate-Controlled Emissions Testing", "logo": "images/success-stories/ashok-leyland.png", "company": "Ashok Leyland Limited", "product": "Climatic Controller", "summary": "ARAI-compliant 22 ± 1°C and 45% ± 2% RH maintained continuously for precision filter paper weighing in particulate emissions testing at Ashok Leyland's Engine R&D Division, Hosur.", "full": { "title": "Precision in Every Milligram: Climate-Controlled Emissions Testing at Ashok Leyland's Engine R&D Division", "subtitle": "How SANPAR Industries engineered a first-of-its-kind Climatic Controller to meet ARAI-standard emission testing tolerances for Ashok Leyland's Engine R&D facility at Hosur.", "atGlance": [ { "label": "Year", "value": "2006" }, { "label": "Customer", "value": "Engine R&D Division, Ashok Leyland Limited, Hosur" }, { "label": "Location", "value": "Hosur, Tamil Nadu, India" }, { "label": "Industry", "value": "Automobile — Commercial Vehicles" }, { "label": "Application", "value": "Controlled-environment filter paper weighing room for particulate emission measurement per ARAI standards" }, { "label": "Challenge", "value": "Maintaining temperature at 22 ± 1°C and relative humidity at 45% ± 2 simultaneously in a single compact system, a tolerance band demanding a purpose-engineered climate control solution" }, { "label": "Solution", "value": "SANPAR Climatic Controller is an integrated Cooling, Humidification, and Dehumidification system with high-accuracy sensors and printer connectivity" }, { "label": "Result", "value": "Stable, ARAI-compliant temperature and RH conditions maintained continuously, ensuring accurate and repeatable gravimetric measurement of particulate emission filter papers" }, { "label": "Follow-on Orders", "value": "2 additional units, Ashok Leyland Pantnagar plant" } ], "sections": [ { "heading": "Customer Overview", "paragraphs": [ "Ashok Leyland Limited is one of India's foremost commercial vehicle manufacturers, with a legacy spanning over seven decades. Headquartered in Chennai, the company is a leading producer of trucks, buses, light commercial vehicles, and defence vehicles, and holds a prominent position in the global commercial vehicle market.", "The Engine Research and Development Division at Hosur, Tamil Nadu, serves as a centre of technical excellence for Ashok Leyland's powertrain development and validation activities. The facility is engaged in the design, development, and emissions certification of diesel and alternative-fuel engines intended for use across the company's commercial vehicle range. Emissions compliance testing, conducted in accordance with standards prescribed by the Automotive Research Association of India (ARAI), is a core function of this division." ] }, { "heading": "The Challenge", "paragraphs": [ "Particulate matter (PM) emissions measurement is a critical and highly regulated element of engine certification. The standard methodology involves collecting exhaust particulates on precision filter papers by drawing diluted exhaust gas through them during an engine test cycle. The gravimetric measurement of these filter papers weighing them before and after the test to determine the mass of particulate deposited must be performed under strictly controlled environmental conditions.", "As per ARAI's prescribed standards for emissions testing, the filter paper conditioning and weighing room must maintain:" ], "bullets": [ "Temperature: 22 ± 1°C", "Relative Humidity (RH): 45% ± 2" ], "trailingParagraphs": [ "These are exceptionally tight tolerances. Any deviation beyond these bands' risks altering the moisture content and therefore the mass of the hygroscopic filter media, directly compromising the accuracy and repeatability of the gravimetric measurement. A filter paper that absorbs or loses even trace amounts of moisture due to uncontrolled ambient conditions will yield a false PM reading with consequences for both regulatory compliance and engine calibration decisions.", "The core engineering challenge was to source or develop a single, integrated system capable of simultaneously controlling both temperature and relative humidity within these narrow bands, in a compact form factor suitable for a laboratory weighing room. Standard air conditioning equipment, which typically controls temperature alone and allows humidity to vary passively, was wholly inadequate for this application. A purpose-engineered climate control solution was required." ] }, { "heading": "The Solution", "paragraphs": [ "SANPAR Industries developed and supplied a custom Climatic Controller which is an advanced, integrated climate management system specifically engineered to meet the ARAI-prescribed temperature and humidity tolerance requirements for filter paper conditioning.", "The SANPAR Climatic Controller is a unified system that integrates three independent climate control sub-systems within a single compact unit:" ], "bullets": [ "Cooling System: Provides precise temperature reduction and control to maintain the room at 22 ± 1°C under varying ambient and internal heat load conditions.", "Humidifier: Introduces controlled quantities of moisture into the conditioned space to raise or sustain relative humidity when ambient or process conditions would otherwise cause it to fall below the 45% ± 2 band.", "Dehumidifier: Actively removes excess moisture from the conditioned air when humidity trends above the upper tolerance limit, preventing over-humidification." ], "trailingParagraphs": [ "The three sub-systems operate under coordinated control logic, allowing the system to respond dynamically to both temperature and humidity deviations correcting in either direction as required.", "Additional features of the system supplied to Ashok Leyland include:" ], "secondaryBullets": [ "High-accuracy Temperature Sensor for continuous real-time monitoring of room temperature.", "High-accuracy Humidity Sensor for continuous real-time RH monitoring.", "Printer Connectivity: The unit interfaces with an external printer, enabling automatic logging and hard-copy records of temperature and humidity conditions supporting audit trails for ARAI compliance documentation.", "Automatic Condensate Discharge Pump: Ensures automatic removal of condensate generated during the dehumidification cycle, eliminating manual intervention and maintaining system hygiene.", "Compact Design with noise levels below 70 dB(A): The low-noise, space-efficient form factor is suited to a laboratory environment where analyst comfort and minimal vibration are important." ] }, { "heading": "Implementation", "paragraphs": [ "SANPAR Industries managed the complete installation and commissioning of the Climatic Controller at Ashok Leyland's Engine R&D facility in Hosur." ], "bullets": [ "Installation and Commissioning: The system was installed at the customer's site and fully commissioned by SANPAR's engineers. Commissioning included verification of temperature and humidity control performance within the specified tolerance bands under representative operating conditions, confirming system readiness for ARAI-compliant testing.", "Operator Training: Ashok Leyland's laboratory and technical staff received structured training on the system's operating principles, control logic, set-point adjustment, sensor calibration checks, and routine maintenance procedures. This ensured the R&D team could operate the equipment independently and respond to any deviations correctly.", "After-Sales Support: SANPAR provided prompt service attention post-commissioning to address any operational queries and ensure the system delivered consistent performance in day-to-day testing operations." ] }, { "heading": "Results Achieved", "paragraphs": [ "The SANPAR Climatic Controller delivered the following tangible outcomes for Ashok Leyland's Engine R&D Division:" ], "bullets": [ "ARAI-compliant test environment: Temperature and relative humidity are continuously maintained within the ARAI-mandated bands of 22 ± 1°C and 45% ± 2 RH, meeting the regulatory conditioning requirements for filter paper gravimetric measurement.", "Accurate and repeatable PM measurement: The stable climate eliminates measurement error introduced by uncontrolled moisture variation in the filter media, ensuring that particulate emission readings are accurate, reproducible, and defensible for certification purposes.", "Reduced measurement uncertainty: By eliminating ambient drift as a variable in the weighing process, the system reduces the overall measurement uncertainty of the PM test, a factor of increasing importance as emission standards tightens.", "Automated condition logging: The printer connectivity feature provides automatic hard-copy records of room conditions during each weighing session, supporting the documentation and traceability requirements of ARAI certification submissions." ], "trailingParagraphs": [ "The following indicators translate the system's technical performance into the operational and financial metrics relevant at their automotive R&D facility. Figures are derived from system design specifications, ARAI standard requirements, and industry benchmarks for precision climate control in laboratory environments." ], "metrics": [ { "metric": "Climate System Uptime (Conditioned Room Availability)", "performance": "> 99%", "meaning": "Any unplanned downtime of the conditioning room suspends the entire emissions test campaign such as engine test slots are expensive and tightly scheduled. Continuous operation with automatic condensate discharge and coordinated control logic minimises manual intervention and system trips." }, { "metric": "Temperature Stability — Maintained Within Spec", "performance": ">98% of logged operating hours within 22 ± 1°C", "meaning": "Standard air conditioning drifts ±3–5°C. Holding ±1°C within ARAI spec requires purpose-engineered control logic. A single out-of-spec session voids the weighing batch and forces re-conditioning and wasting test time and delaying certification." }, { "metric": "Relative Humidity Control — Maintained Within Spec", "performance": ">98% logged compliance within 45% ± 2 RH; excursions limited to sensor calibration windows", "meaning": "Humidity is controlled in both directions simultaneously. Humidification when ambient is dry (winter months, high HVAC load), dehumidification when humid (monsoon season). Passive or single-direction systems cannot hold ±2% RH year-round in Tamil Nadu's variable climate." }, { "metric": "Power Consumption vs. Multi-Unit Standard AC + Separate Humidifier", "performance": "20–30% lower (integrated single-unit design)", "meaning": "A conventional approach (separate AC + standalone humidifier + dehumidifier) runs three independent refrigeration or heating circuits without coordinated control leading to competing loads and wasted energy. The integrated Climatic Controller eliminates this overlap, running a single coordinated thermal cycle." }, { "metric": "Cost to Utilities — Running Cost of Conditioned Room", "performance": "Low — single compact unit, <70 dB(A), no auxiliary plant room", "meaning": "Compact form factor eliminates the need for a dedicated plant room or ducting infrastructure. Automatic condensate discharge removes the need for manual drain management. The utility cost of this system is a fraction of the cost of a failed or repeated emissions test." }, { "metric": "PM Measurement Uncertainty Reduction", "performance": "Ambient moisture contribution eliminated from weighing error budget", "meaning": "Filter papers are hygroscopic; a 5% RH deviation can introduce up to 10–15 µg mass error per filter paper, per ARAI conditioning protocol. At BS-VI particulate limits, even microgram-level errors are significant. Controlled conditions lock out this error source entirely, protecting the credibility of certification submissions." }, { "metric": "Test Throughput & Lab Operational Efficiency", "performance": "No conditioning-attributed repeat-weighing sessions recorded during 2006–2009 operational period", "meaning": "Each conditioning and weighing cycle takes 1–8 hours. An out-of-spec environment forces the batch to be discarded and restarted, directly delaying the downstream engine test schedule. Reliable climate control is a direct enabler of R&D throughput and certification timelines." }, { "metric": "Regulatory Compliance & Audit Trail Completeness", "performance": "100% — automatic hard-copy log per weighing session", "meaning": "ARAI submissions require documented evidence of room conditions during each weighing session. The built-in printer logs T and RH automatically, no manual recording, no gaps in the traceability chain. This alone removes a common audit finding at less well-equipped test facilities." } ], "footnote": "Note: Uptime and compliance figures reflect the operational record reported at Ashok Leyland's Hosur facility. Power saving estimates are based on a comparison with conventional multi-unit approaches (split AC + standalone humidifier + standalone dehumidifier) operating in an uncoordinated configuration. Measurement uncertainty and test throughput metrics are derived from ARAI standard requirements and industry practice for gravimetric PM testing under BS-VI conditions." }, { "heading": "Outcome", "paragraphs": [ "The successful deployment of the Climatic Controller at Ashok Leyland's Engine R&D Division at Hosur demonstrates SANPAR Industries' capability to engineer precision climate control solutions that go beyond conventional air conditioning, thus achieving simultaneous, close-tolerance control of both temperature and relative humidity in a purpose-built laboratory environment.", "For Ashok Leyland, the system has become an integral part of the emissions testing infrastructure, enabling the Engine R&D Division to conduct ARAI-standard particulate emission measurements with confidence in the integrity of their results. As Ashok Leyland continues to develop engines compliant with evolving Bharat Stage emission norms and international standards, the precision climate-controlled weighing environment provided by SANPAR remains a foundational element of their test and validation capability." ] } ] } }, { "id": "ecodrair-oem-machine-tool", "industry": "Machine Tool Manufacturing / OEM Partnership", "headline": "Air is the Fourth Utility: Preferred OEM Compressed Air Partner", "logo": "images/success-stories/ecodrair.gif", "company": "Leading Machine Tool OEMs (National & International)", "product": "Ecodrair Refrigerated Air Dryer", "summary": "Bundled with new machine tools by leading OEMs across India and abroad. Ecodrair delivers ISO 8573-1 Class 1.4.1 compressed air to VMC, HMC, EDM, laser, CMM, grinder, waterjet and plasma machines — protecting spindle bearings, laser optics, CMM air bearings and pneumatic actuators from day one.", "full": { "title": "Air is the Fourth Utility: SANPAR Ecodrair is the Preferred Compressed Air Partner Across Machine Tool Industry", "subtitle": "More than thirty-two years of field experience, a safety-first design philosophy, and the only compressed air dryer in India built specifically for machine tool applications. Ecodrair is the reason leading VMC, HMC, EDM, laser cutting, CMM, surface grinder, waterjet, and plasma cutting manufacturers supply dry air as part of their machine, not as an afterthought.", "atGlance": [ { "label": "Product", "value": "Ecodrair, the Refrigerated Compressed Air Dryer, manufactured by SANPAR Industries Pvt. Ltd., Bengaluru" }, { "label": "Partnership Type", "value": "Preferred OEM bundled air treatment partner, Ecodrair supplied as an integrated package with machine tools by leading national and international machine tool manufacturers" }, { "label": "Machine Categories", "value": "VMC / HMC (Vertical & Horizontal Machining Centres), CNC Turning Centres, Wire & Die-Sink EDM, Fibre & CO₂ Laser Cutting Machines, CMM, CNC Surface Grinders, Waterjet Cutting, Plasma Cutting" }, { "label": "Air Quality Delivered", "value": "ISO 8573-1 Class 1.4.1 with Pressure Dew Point +3°C, particle removal to 0.01 micron, residual oil to 0.01 mg/m³ (with full filter train)" }, { "label": "Product Range", "value": "10 standard models: CAT-D1-3A to CAT-D1-42A: 10 to 150 CFM FAD. High pressure variants on request. All R134a refrigerant (Zero ODP)" }, { "label": "Design Standard", "value": "ISO 7183 manufactured and tested to this international standard for compressed air dryers" }, { "label": "Certifications", "value": "ISO 9001:2015 | CE Marked | Make in India" }, { "label": "Experience", "value": "32+ years serving machine tool manufacturers from Machining Centres, Laser Cutting Machines, and CMMs internationally" }, { "label": "Core Value Proposition", "value": "Safety features designed; modulating capacity control; integrated tube-in-tube heat exchanger saving 55%+ power; real-time digital dew point display; anti-corrosive construction; no standby required" }, { "label": "Result", "value": "Spindle bearing MTBF restored to OEM design life; laser optic contamination eliminated; CMM air bearing integrity maintained; pneumatic actuator and valve life extended; field warranty calls attributed to air quality reduced to near zero across OEM installed base" } ], "sections": [ { "heading": "What is Ecodrair?", "paragraphs": [ "Ecodrair is SANPAR's refrigerated compressed air dryer designed, manufactured, and warranted in India, from SANPAR's plant at Bommasandra, Bengaluru, under ISO 9001:2015 and AS9100D quality management systems. It is a purpose-built machine tool refrigerated compressed air dryer, whose design brief from the outset was to protect the pneumatic sub-systems of precision manufacturing machines from the consequences of contaminated compressed air.", "Every machine tool in a modern production or toolroom environment depends on compressed air for functions that are either safety-critical, accuracy-critical, or both: spindle purge, tool change actuation, axis brake release, workholding, laser optic protection, CMM air bearing suspension. When the air supply fails to meet the machine's quality specification in moisture content, oil content, or particulate class, so does the machine. Not immediately, and not visibly. It fails slowly, expensively, and in ways that the machine's own manufacturer is called to diagnose and rectify.", "Ecodrair was built to prevent that call from ever being made. Thirty-two years of field feedback from machine tool manufacturers and machine users drove its safety feature set. The result is the dryer that leading national and international machine tool manufacturers bundle with their machines as the specified air treatment solution, rather than leaving compressed air quality to chance at the customer site." ] }, { "heading": "Ecodrair — Technical Architecture", "subsections": [ { "heading": "Tube-in-Tube Integrated Heat Exchanger for 55%+ Power Saving", "paragraphs": [ "Ecodrair's compact tube-in-tube design integrates the air-to-air pre-cooling exchanger and the refrigerant-to-air chilling exchanger in a single assembly using pure copper coil tubes. This arrangement extracts heat from the incoming warm compressed air using the outgoing cold dried air, reducing the thermal load on the refrigeration circuit by more than 55%. For machine tool OEMs whose customers run dryers continuously over 8 to 24-hour shifts, this translates directly to lower running cost per machine which is an expected specification argument that supports the bundled package sale." ] }, { "heading": "Modulating Capacity Controller for Dry Air Under All Load Conditions", "paragraphs": [ "Machine tool air demand is not constant. An ATC tool change cycle creates a momentary peak demand. Between cycles, the demand drops. A fixed-capacity dryer running below its rated load risks evaporator freeze-up, refrigerant liquid return, and dew point fluctuation, all of which compromise the air quality reaching the machine. Ecodrair's modulating capacity controller actively manages suction pressure and evaporator temperature across the full range of partial thermal loads, ensuring that +3°C PDP is delivered whether the machine is in a heavy cutting cycle or idling between jobs. This is the feature that prevents the silent dew point degradation that damages spindle bearings over months without triggering an alarm." ] }, { "heading": "Centrifugal cum Demister Separator (SS316L) for Complete Condensate Removal", "paragraphs": [ "Bulk liquid water in compressed air lines is the most immediately damaging contaminant for machine tool pneumatics. Ecodrair's centrifugal separator, constructed with an SS316L demister element, ensures complete removal of condensate including mist-phase droplets even under partial load conditions. Critically, it prevents condensate carry-over to the downstream filter train and machine circuit during pressure cycling. The auto-drain ensures that accumulated condensate is discharged without manual intervention and without air loss." ] }, { "heading": "Real-Time Digital Dew Point Display for Not a Band, an Actual Reading", "paragraphs": [ "Ecodrair's display panel shows the real-time dew point temperature as a live digital value. This is operationally significant: a band indicator tells the operator that the dryer is 'running'. A digital dew point reading tells the machine tool application engineer whether the air quality at that moment is within the machine's specification. The 4-20mA digital output option allows the dew point signal to be connected to the machine's control system or a facility monitoring network, enabling the dryer's performance to be included in the machine's condition monitoring data stream." ] }, { "heading": "Anti-Corrosive Construction for Built for the Workshop Floor", "paragraphs": [ "Machine tools are installed in environments with coolant mist, metallic swarf, and high ambient humidity unlike instrument rooms. Ecodrair's housing carries an anti-corrosive coating across all exposed surfaces, with an aluminum fin and copper tube condenser. The hermetically sealed refrigerant compressor is mounted on anti-vibration bushes, eliminating the vibration transmission to the machine tool that affects measurement and cutting accuracy. Noise level is below 60 dB within the ambient noise profile of a typical CNC workshop." ] }, { "heading": "R134a Refrigerant for Zero ODP, CFC-Free", "paragraphs": [ "Ecodrair uses R134a refrigerant exclusively across all 10 standard models with zero ozone depletion potential, no CFC content, compliant with environmental regulations. For machine tool OEMs supplying to aerospace and defence customers with environmental compliance requirements in their supply chain audit as a specified characteristic." ] }, { "heading": "10 Standard Models for Sized to the Machine, Not Oversized to the Compressor", "paragraphs": [ "A common installation error particularly when compressed air treatment is left to the end user is selecting a dryer sized to the compressor output rather than to the machine's actual air demand. An oversized dryer runs at low load continuously, operating in the partial-load regime where dew point consistency is hardest to maintain. SANPAR's OEM partnership model addresses this by sizing Ecodrair to the machine's documented peak demand:" ], "tables": [ { "headers": [], "rows": [ [ "CAT-D1-3A", "10 CFM FAD — 1/2\" BSP — Single small CNC turning centre, small EDM" ], [ "CAT-D1-5A", "20 CFM FAD — 1/2\" BSP — Standard VMC, small CMM" ], [ "CAT-D1-9A", "30 CFM FAD — 1\" BSP — Mid-size VMC, laser cutting head" ], [ "CAT-D1-12A", "42 CFM FAD — 1\" BSP — Full-size VMC, HMC with high-flow ATC" ], [ "CAT-D1-16A", "55 CFM FAD — 1\" BSP — Twin-pallet HMC, large CMM" ], [ "CAT-D1-20A", "70 CFM FAD — 1\" BSP — Multi-axis machining centre, fibre laser" ], [ "CAT-D1-24A", "85 CFM FAD — 1 1/2\" BSP — Large HMC, plasma cutting" ], [ "CAT-D1-28A", "100 CFM FAD — 1 1/2\" BSP — Multi-machine ring main drop" ], [ "CAT-D1-35A", "125 CFM FAD — 2\" BSP — Transfer line, multi-machine cell" ], [ "CAT-D1-42A", "150 CFM FAD — 2\" BSP — Large machine cell, centrally served waterjet / plasma" ] ] } ], "trailingParagraphs": [ "All models rated at: Air Inlet Temp 45°C | Inlet Pressure 7 kg/cm²g | Condenser Cooling Air 20–45°C | PDP +3°C | Operating Range 4–16 kg/cm²g | PR Drop 0.15 BAR(G). Correction factors available for non-standard inlet temperatures, pressures, and dew points." ] } ] }, { "heading": "Ecodrair Across Machine Tool Categories", "paragraphs": [ "The following table maps Ecodrair's application across every machine tool category in SANPAR's OEM programme. The ISO 8573-1 Class 1.4.1 delivered by Ecodrair with the standard Microfilter train covers the majority of machine tool applications." ], "tables": [ { "headers": [ "Machine Type", "Critical Air-Dependent Functions", "Failure Without Ecodrair", "Ecodrair Model & Configuration" ], "rows": [ [ "VMC / HMC", "Spindle labyrinth seal purge; ATC draw-bar actuation; axis brake release; pneumatic workholding", "Spindle bearing corrosion (moisture ingress); ATC seal failure; inconsistent clamping force; control valve seat erosion", "CAT-D1-9A to D1-20A + PF–AF–FF–CF filter train = ISO Class 1.4.1 at spindle inlet" ], [ "CNC Turning Centre", "Chuck jaw actuation; bar feeder air cushion; tailstock clamp; coolant separator purge", "Chuck inconsistency; bar feeder misalignment; moisture streaking on finish; tailstock clamp unreliability", "CAT-D1-3A to D1-9A + PF–AF filter train. Auto-drain on all housings mandatory" ], [ "Wire EDM & Die-Sink EDM", "Flushing nozzle pressure; dielectric assist air; axis purge; wire threading guide (Wire EDM)", "Dielectric conductivity degradation from moisture; oil contamination forces full dielectric flush; nozzle bore erosion from particulate", "CAT-D1-3A to D1-12A + full PF–AF–FF–CF train. Ecodrair as pre-stage to desiccant for wire EDM requiring Class 1.2.1" ], [ "Fibre Laser & CO₂ Laser Cutting", "Cutting assist gas; lens & nozzle cooling purge; optical path (beam) purge; cutting head pneumatic actuation", "Moisture/oil on focusing lens → thermal lensing, power loss, lens cracking (R₹1.5–6L replacement); particulate degrades cut edge quality", "CAT-D1-9A to D1-20A + PF–AF–FF–CF train for assist gas circuit. Ecodrair + desiccant for optical purge circuit (Class 1.1.1)" ], [ "Co-ordinate Measuring Machine (CMM)", "Air bearing suspension (bridge, ram, quill); probe suspension (touch-trigger & scanning); optional air spindle", "Bearing surface scoring; carriage stick-slip; MPE / PQR degradation; probe qualification non-repeatability; thermal drift", "CAT-D1-5A to D1-16A as refrigerated pre-stage. Ecodrair protects desiccant beds and extends their life in Class 1.1.1 CMM circuits" ], [ "CNC Surface Grinder", "Spindle air purge (exclude grinding swarf); wheel dresser actuation; magnetic chuck de-gauss; workpiece blow-off", "Abrasive swarf ingestion into spindle bearing when purge flow insufficient or air wet; dresser actuator seal failure", "CAT-D1-5A to D1-12A + PF–AF filter train. Critical: purge flow rate adequacy verified at commissioning" ], [ "Waterjet Cutting Machine", "Abrasive garnet metering air; pneumatic on/off & proportional valve actuation; Z-axis positioning; hopper fluidisation", "Moisture clumps garnet → feed blockages, inconsistent cut depth; valve actuator seal failure from water slug; Z-axis stick-slip", "CAT-D1-9A to D1-20A + PF–AF filter train. Auto-drain on all filter housings serving abrasive metering circuits" ], [ "Plasma Cutting Machine", "Plasma gas supply (air plasma systems); shield gas; torch cooling air purge; height control pneumatics", "Arc instability from moisture; oil contaminates electrode/nozzle → 40–60% consumable life shortfall; nozzle bore erosion from particulate", "CAT-D1-12A to D1-24A + PF–AF–FF train. Delivers plasma-grade air to OEM torch specification" ] ] } ] }, { "heading": "Why OEMs Trust Ecodrair — The Safety Features", "paragraphs": [ "Machine tool manufacturers select their bundled air treatment partner on the answer to one key question: if this dryer fails, or degrades silently, what happens to my machine under warranty? The answer determines their liability exposure across their entire installed base.", "Ecodrair's safety feature set was designed to answer this question specifically. Each feature listed below maps directly to a field failure mode that SANPAR's experienced service engineers and that Ecodrair's design was modified to prevent:" ], "bullets": [ "Power failure protection: When electrical supply is interrupted which is a common occurrence in Indian industrial environments, a standard dryer allows warm, saturated air to pass through the refrigeration circuit and reach the machine. Ecodrair's safety logic protects the pneumatic accessories in the machine from contamination by oil and water vapour even during power interruption events.", "No fluctuating dew point: The expansion device is uniquely designed for 100% conversion to liquid at the evaporator inlet, ensuring maximum heat transfer between refrigerant and air. This is the design choice that prevents the dew point hunting oscillation between acceptable and unacceptable moisture content that causes intermittent spindle bearing exposure in conventionally designed dryers.", "Evaporator freeze protection: The modulating capacity controller actively prevents evaporator freeze-up during low-load operation. A frozen evaporator passes uncooled air at full inlet moisture content directly to the machine. This failure mode is invisible to the operator and can persist for an entire shift before it is detected.", "SS316L demister separator: The centrifugal cum demister separator ensures complete condensate removal even at partial load, the most challenging operating condition for bulk liquid separation. Carry-over of mist particles to the downstream filter train and machine circuit is prevented at all load conditions.", "Anti-vibration mounted compressor: Vibration from the dryer's refrigerant compressor, if transmitted to the machine tool's structure, affects measurement accuracy on CMMs and surface finish quality on precision grinders. Ecodrair's compressor is mounted on anti-vibration bushes, isolating the dryer's mechanical excitation from the machine.", "Temperature-controlled condenser fan with cut-in/cut-off: The condenser fan operates only when condensing temperature requires reducing power consumption, extending fan motor life, and maintaining consistent condensing temperature independent of ambient variation. In a machine shop where ambient temperature can range from 20°C in winter to 45°C in summer, this consistency is what prevents seasonal dew point drift." ] }, { "heading": "The Complete Solution — Ecodrair with SANPAR Microfilters", "paragraphs": [ "Ecodrair delivers +3°C PDP at the dryer outlet, ISO 8573-1 Class 4 moisture. Reaching Class 1.4.1 at the machine inlet, the standard required for VMC/HMC spindle purge, laser assist gas, and pneumatic actuation circuits requires the downstream Microfilter train. SANPAR supplies both, sized and configured as a single integrated package:" ], "bullets": [ "Filter Grade PF (Pleated Cellulose Acetate): Bulk liquid and particle removal to 3 microns. Pre-filter protecting AF and FF grade elements from bulk contamination load.", "Filter Grade AF (Pleated Borosilicate Glass Fibre): Liquid and particle removal to 0.1 micron, residual oil 0.5 mg/m³. Coalescing stage for high-efficiency aerosol removal.", "Filter Grade FF (Pleated Borosilicate Glass Fibre): Liquid and particle removal below 0.01 micron, residual oil 0.01 mg/m³. Delivers ISO Class 1 particulate and Class 1 oil.", "Filter Grade CF (Activated Carbon Bed): Residual oil content 0.005 mg/m³, free of odour and oil vapour. The final stage for applications requiring oil-free air at the machine inlet." ], "trailingParagraphs": [ "Each Microfilter housing includes a differential pressure gauge for filter element life monitoring, a condensate level indicator for drain performance verification, and a safety whistle alarm for improper sealing features that protect the integrity of the filter train across the machine's service life. 30 filter sizes are available, covering flows from 45 to 150 CFM FAD, ensuring that every Ecodrair model can be matched to the correct filter housing size for the machine application." ] }, { "heading": "Results Achieved", "paragraphs": [ "Across the OEM partnerships where Ecodrair has been specified as the bundled air treatment solution, the following outcomes have been documented at end-user sites:" ], "bullets": [ "VMC and HMC spindle bearing life: Spindle bearing MTBF has remained within OEM design life intervals at Ecodrair-commissioned sites. Pre-partnership, moisture-attributed spindle bearing failures were occurring at 30–60% shorter intervals than the OEM's stated design life, producing recurring warranty claims in the first 12–24 months of machine operation.", "Laser cutting lens integrity: Contamination-attributed lens failures have been eliminated at sites where Ecodrair with the CF-grade activated carbon filter is installed on the assist gas and optical purge circuit. The combination of +3°C PDP moisture removal and sub-0.005 mg/m³ oil content removes both failure-causing contaminants from the optical circuit.", "ATC tool changer reliability: Draw-bar actuator seal replacement frequency has reduced significantly following introduction of the PF–AF–FF filter train downstream of Ecodrair. Directional control valve seat erosion, a common cause of inconsistent tool change clamping force has been eliminated at commissioned sites.", "CMM measurement repeatability: Where Ecodrair is installed as the refrigerated pre-drying stage upstream of a desiccant dryer in CMM circuits, desiccant bed life has extended measurably reducing the frequency and cost of desiccant replacement while maintaining the Class 1.1.1 air quality at the CMM air bearing inlet.", "Plasma consumable life: At plasma cutting machine installations with Ecodrair and PF–AF–FF filtration, electrode and nozzle life has been restored to within 10% of OEM published figures, compared to the 40–60% shortfall observed at sites with unfiltered or inadequately dried supply.", "Waterjet metering consistency: Abrasive feed blockages attributed to moisture-clumped garnet have been eliminated at commissioned waterjet sites. The improvement in cutting consistency and depth control has been noted by machine operators as one of the most immediately visible effects of the Ecodrair installation.", "OEM warranty call reduction: Machine tool OEM partners have reported significant reductions in air-quality-attributed field service calls following standardisation on Ecodrair. The combination of the dryer's real-time dew point display and SANPAR's commissioning certificate documenting air quality at the machine inlet at handover has also provided OEMs with defensible documentation in customer warranty discussions." ], "trailingParagraphs": [ "The following metrics translate product features into operational and financial outcomes." ], "metrics": [ { "metric": "Pressure Dew Point — Delivered at Dryer Outlet", "performance": "+3°C PDP (ISO 8573-1 Class 4 moisture) — year-round, load-independent", "meaning": "The modulating capacity controller holds rated PDP across the full partial-load range from peak ATC demand to idle. Dew point does not drift as machine load changes. This is the single most important specification for spindle purge air quality." }, { "metric": "Air Quality at Machine Inlet — With Full Microfilter Train", "performance": "ISO 8573-1 Class 1.4.1 — particle <0.01µm, oil <0.01 mg/m³, PDP +3°C", "meaning": "Class 1.4.1 covers VMC/HMC spindle purge, CNC turning actuation, surface grinder spindle purge, waterjet metering, plasma cutting, and laser assist gas. One dryer + filter train specification covers the majority of machine tool applications in a single BOM line item." }, { "metric": "Power Saving — Integrated Tube-in-Tube Heat Exchanger", "performance": ">55% power saving vs. conventional refrigerated dryer design", "meaning": "A machine tool dryer runs continuously for 8–24 hours per day. A 55%+ power reduction over a conventional design means the Ecodrair pays for a significant portion of its own cost in reduced electricity consumption across a 3–5 year machine warranty period." }, { "metric": "VMC/HMC Spindle Bearing MTBF — Moisture-Attributed Failure", "performance": "Restored to OEM design life (30–60% improvement vs. contaminated-air baseline)", "meaning": "Spindle rebuild or replacement: ₹3–25L depending on spindle class. Ecodrair's +3°C PDP at the labyrinth seal inlet eliminates the condensation mechanism that corrodes bearing races. This is the single highest-cost warranty event that correct air treatment prevents." }, { "metric": "Laser Focusing Lens — Contamination-Attributed Failures", "performance": "Zero lens failures post-Ecodrair commissioning (with CF-grade filter)", "meaning": "Replacement focusing lens for high-power fibre laser: ₹1.5–6L plus emergency shutdown cost. Ecodrair + activated carbon polisher delivers oil at <0.005 mg/m³ at the optical purge inlet below the threshold for thermal absorption damage to the lens coating." }, { "metric": "ATC Draw-Bar Actuator Seal Life", "performance": "2–3x replacement interval extension vs. unfiltered supply", "meaning": "Seal deterioration in draw-bar actuators from moisture and oil is a safety-relevant failure: inconsistent pull-stud retention force on high-speed spindles. Ecodrair's moisture removal extends seal life and removes this failure from the machine's field failure distribution." }, { "metric": "Plasma Electrode & Nozzle Consumable Life", "performance": "Within 10% of OEM published specification", "meaning": "Against a 40–60% life shortfall on unfiltered supply. The OEM's consumable cost-of-ownership claim is validated when air quality is correct. Customers stop attributing high consumable spend to the machine." }, { "metric": "Dryer Noise Level", "performance": "<60 dB(A)", "meaning": "Below the ambient noise level of a typical CNC workshop floor. The dryer does not add to the acoustic environment of the machine installation and does not require acoustic enclosure or isolation." }, { "metric": "OEM Warranty Field Calls — Air Quality Attribution", "performance": "Near-zero following Ecodrair bundled supply standardisation", "meaning": "SANPAR's commissioning certificate documents dew point, particle count, and oil content at the machine inlet at handover. This gives the OEM a defensible baseline in any warranty discussion involving air quality changing the conversation from 'machine fault' to 'air supply condition at installation'." } ], "footnote": "Note: Dew point and air quality figures reflect Ecodrair's certified operating specification. Spindle MTBF, lens failure, and consumable life data are based on comparative field records across OEM installed base sites. Power saving figure is based on SANPAR's tube-in-tube heat exchanger design versus a conventional single-stage refrigerant-to-air exchanger at equivalent rated capacity." }, { "heading": "Outcome", "paragraphs": [ "For the application engineer specifying a VMC, HMC, laser cutting machine, EDM, CMM, surface grinder, waterjet, or plasma cutter: the machine was designed to perform to its published specification when supplied with ISO-class compressed air at its inlet.", "Ecodrair meets the specification required on the field. The spindle warranty, the lens guarantee, the CMM measurement uncertainty statement, the consumable life claim, all of these commitments depend on air quality that the machine's end user cannot reliably provide from their compressor room without a purpose-built treatment system.", "Bundling Ecodrair with the machine is how the OEM's performance specification becomes an operational reality at the customer site from the day of installation, across the entire service life of the machine." ] } ] } }, { "id": "hical-technologies", "industry": "Aerospace & Defence Electronics", "headline": "Where One Degree of Drift Means a Defective Inductor", "logo": "images/success-stories/hical.png", "company": "Hical Technologies Pvt. Ltd.", "product": "Precision Air Conditioner", "summary": "Custom 4-mode Precision Air Conditioner holds the vacuum potting room at 23 ± 2°C and 40 ± 5% RH continuously — eliminating moisture-induced surface pustules in aerospace-grade high-voltage inductors and lifting first-pass potting yield above 90%. False-ceiling installation consumes zero production floor space.", "full": { "title": "Where One Degree of Drift Means a Defective Inductor: Precision Climate Control for Aerospace-Grade Vacuum Potting at Hical Technologies", "subtitle": "Hical Technologies Pvt. Ltd. | Aerospace & Defence Electronics | Vacuum Potting Process", "atGlance": [ { "label": "Year of supply", "value": "2014" }, { "label": "Customer", "value": "Hical Technologies Pvt. Ltd." }, { "label": "Location", "value": "India (Aerospace & Defence Manufacturing)" }, { "label": "Industry", "value": "Aviation — Aerospace & Defence Electronics" }, { "label": "Application", "value": "Vacuum potting room climate control for polyurethane encapsulation of high-voltage inductors" }, { "label": "Challenge", "value": "Uncontrolled temperature and humidity causing pustule defects in potting, leading to high-voltage breakdown risk in aerospace-grade inductors" }, { "label": "Solution", "value": "SANPAR custom Precision Air Conditioner — 4-mode integrated climate control (cooling, heating, humidification, dehumidification); false-ceiling suspended; ±0.1 sensor accuracy" }, { "label": "Result", "value": "Stable climate at 23 ± 2°C and 40% ± 5 RH maintained continuously; pustule defect rate eliminated; zero floor space consumed" } ], "sections": [ { "heading": "Customer Overview", "paragraphs": [ "Hical Technologies Pvt. Ltd. is an Indian manufacturer specialising in magnetics and power electronics components for aerospace, defence, and high-reliability industrial applications. The company designs and manufactures inductors, transformers, chokes, and EMI filters that are qualified for use in some of the most demanding operating environments in the world including avionics systems, radar installations, missile electronics, and space payloads.", "At the core of Hical's manufacturing process is the production of high-voltage inductors, where electrical performance, dielectric integrity, and long-term reliability must meet aerospace qualification standards such as MIL-PRF and DO-160. Achieving these standards requires not only precision in winding and core assembly, but equally precise control over the encapsulation process by which the inductor assembly is protected against moisture, vibration, and thermal stress, a process known as vacuum potting.", "Hical's products enter systems where failure is not a field-return event. It is a mission-critical incident. This reality defines the manufacturing environment within which every process parameter including ambient climate must be controlled without compromise." ] }, { "heading": "The Challenge", "paragraphs": [ "Vacuum potting is the process by which a pre-mixed polyurethane compound is drawn under vacuum into the wound assembly of an inductor, encapsulating the winding stack, core, and terminal connections in a void-free, thermally conductive, electrically insulating matrix. The resulting potted assembly must withstand operating voltages, thermal cycling, and mechanical shock across the full service life of the aircraft or system in which it is installed.", "The quality of the potting outcome is acutely sensitive to the ambient temperature and relative humidity in the potting room at the time of encapsulation. Hical's polyurethane potting compound required strict environmental conditions to be maintained throughout the potting process:" ], "bullets": [ "Temperature: 23 ± 2°C within this band, the compound maintains the correct viscosity for full void-free penetration under vacuum; above this range, premature gelation reduces pot life and prevents complete cavity fill; below it, elevated viscosity increases void risk and slows outgassing", "Relative Humidity: 40% ± 5 polyurethane compounds are moisture-reactive by chemistry; at elevated RH, ambient moisture accelerates the isocyanate-polyol reaction at the exposed potting surface, generating carbon dioxide as a reaction by-product before the surface skin has cured" ], "trailingParagraphs": [ "This CO₂ evolution at the surface, caused directly by excessive humidity, manifests as pustule-like formations, large bubbles on the top of the potted surface. These are not cosmetic defects. In a high-voltage inductor:" ], "secondaryBullets": [ "Surface pustules create localised voids in the potting matrix immediately beneath and around the bubble reducing the effective dielectric path length between windings and the outer surface", "Reduced dielectric path length dramatically increases the probability of high-voltage breakdown under operational electrical stress, a failure mode that can be instantaneous and catastrophic in an energised avionics system", "Even where immediate breakdown does not occur, moisture-contaminated potting reduces partial discharge inception voltage, causing insulation degradation over the operational life of the component and increasing the risk of in-service failure", "Any inductor showing visible surface pustules must be scrapped so the polyurethane encapsulant cannot be removed and re-poured once cured without destroying the wound assembly. The entire component is a total loss" ], "endParagraphs": [ "The cost consequence is severe: polyurethane aerospace potting compound is expensive, the wound inductor assembly it encapsulates represents significant labour and materials cost, and each reject also consumes potting machine time and delays the production schedule. Without environmental control, Hical's potting yield was subject to the ambient conditions of the day by producing consistent, defect-free batches was impossible when climate was left to chance.", "The additional engineering constraint was spatial: the potting room is a precision production environment where floor space is directly productive. Any climate control solution that consumed floor area would displace process equipment or restrict operator movement which is an unacceptable trade-off." ] }, { "heading": "The Solution", "paragraphs": [ "SANPAR Industries undertook a detailed application assessment of Hical's vacuum potting room, evaluating the room volume, thermal load profile, seasonal ambient temperature and humidity range at the facility location, and the spatial constraints imposed by the existing process layout. The assessment confirmed that a standard precision air conditioner which typically provides only cooling and dehumidification was insufficient for this application.", "The Hical requirement demanded four-mode climate control: the ability to cool, heat, dehumidify, and humidify within a single integrated system, with sufficient control bandwidth to maintain the narrow ±2°C and ±5% RH tolerances across all seasons and ambient conditions. SANPAR designed and manufactured a custom Precision Air Conditioner specifically configured for this requirement.", "The four integrated control modes and their specific process functions:" ], "tables": [ { "headers": [ "Control Mode", "Function", "Process Relevance" ], "rows": [ [ "Cooling System", "Removes heat load to maintain 23 ± 2°C setpoint", "Prevents accelerated cure and viscosity drop in polyurethane compound" ], [ "De-Humidifier", "Condenses and drains excess moisture from room air", "Eliminates moisture-induced pustule formation on potting surface" ], [ "Humidifier", "Introduces controlled moisture when RH falls below setpoint", "Prevents over-dry conditions that cause surface skinning and micro-cracking" ], [ "Heating System", "Raises room temperature during cold ambient or start-up conditions", "Maintains process temperature floor — critical during early morning shifts and seasonal lows" ] ] } ], "trailingParagraphs": [ "Beyond the core four-mode climate control architecture, SANPAR incorporated a series of additional engineering refinements to address Hical's specific operational requirements:" ], "secondaryBullets": [ "Suspended indoor unit above false ceiling: the entire air handling unit is installed above the false ceiling of the potting room, delivering conditioned air through custom ductwork while occupying zero production floor space preserving the full working area of the potting room for process equipment and operators", "Highly accurate sensing: temperature and humidity sensors with ±0.1°C and ±0.1% RH accuracy, a specification order of magnitude more precise than standard HVAC sensing, essential for maintaining the tight process tolerances required by aerospace potting specifications", "Custom ductable unit: the air distribution system was designed and optimised specifically for the geometry and air circulation requirements of Hical's potting room, ensuring uniform climate across the entire working volume rather than localised conditioning near the unit outlet", "Acoustic performance below 65 dBa: the system operates within the noise limits appropriate for a precision manufacturing environment, ensuring operator comfort and compliance with workplace acoustic standards during continuous operation" ] }, { "heading": "Implementation", "paragraphs": [ "SANPAR's installation team managed the full deployment at Hical's facility, with particular attention to the false-ceiling mounting configuration and the custom ductwork routing both of which required close coordination with Hical's facilities and production engineering teams to integrate without disrupting ongoing operations. The implementation sequence covered:" ], "bullets": [ "Pre-installation site survey confirming ceiling void dimensions, structural fixing points for the suspended unit, and ductwork routing paths from the ceiling void into the potting room working volume", "Mechanical installation of the suspended air handling unit within the ceiling void, including vibration isolation mounts to prevent transmission of compressor vibration to the potting room structure", "Custom ductwork fabrication and installation, optimised for uniform air distribution across the potting room working area, supply and return air positions selected to prevent direct air impingement on open potting vessels", "Commissioning and setpoint configuration: temperature setpoint at 23°C, RH setpoint at 40%, with control deadband calibrated to maintain tolerances within ±1°C and ±2% RH in normal operation, tighter than the process specification to provide a control margin against transient disturbances", "24-hour climate stability verification across a full operational cycle, including simulation of door-opening events and operator entry to confirm recovery time within acceptable limits", "Operator training covering setpoint adjustment, filter maintenance schedule, sensor calibration check procedure, and fault indicator response" ], "trailingParagraphs": [ "Post-commissioning, SANPAR provided prompt after-sales support to Hical's maintenance team, ensuring technical availability during the initial period of production integration and process qualification." ] }, { "heading": "Results Achieved", "paragraphs": [ "Following commissioning of the SANPAR Precision Air Conditioner, Hical Technologies' vacuum potting room maintained stable, controlled climate conditions year-round directly eliminating the primary defect mechanism that had been compromising aerospace inductor yield:" ], "bullets": [ "Potting room temperature maintained at 23 ± 2°C continuously across all shifts and seasons, polyurethane compound viscosity and pot life held within specification for every production batch", "Relative humidity maintained at 40% ± 5% moisture-reactive surface pustule formation eliminated as a defect mode; potting surface quality consistent and defect-free across batches", "High-voltage inductor first-pass potting yield improved to over 90% scrapped assemblies due to humidity-induced pustule defects reduced to effectively zero under controlled conditions", "Expensive polyurethane aerospace potting compound wastage eliminated, each batch of compound now reliably produces conforming potted assemblies, removing the material cost of rejected components", "Zero production floor space consumed false-ceiling installation preserves the complete working area of the potting room for process equipment, materials, and operator access", "System acoustic output confirmed below 65 dBa no operator comfort or compliance issues during continuous operation in the potting room environment", "Sensor accuracy of ±0.1°C and ±0.1% RH provides Hical with a reliable, auditable climate record for each production batch supporting traceability requirements under aerospace quality management systems" ], "trailingParagraphs": [], "metrics": [ { "metric": "Climate Tolerance Achieved (Temperature & Relative Humidity)", "performance": "±2°C / ±5% RH", "meaning": "" }, { "metric": "Sensor Accuracy (°C and % RH — aerospace-grade sensing)", "performance": "±0.1", "meaning": "" }, { "metric": "Potting Batch First-Pass Yield (vs. recurring defects pre-installation)", "performance": ">90%", "meaning": "" }, { "metric": "Floor Space Consumed (false ceiling suspension — 0 footprint)", "performance": "~Zero", "meaning": "" }, { "metric": "Acoustic Output (compliant with precision process room limits)", "performance": "<65 dBa", "meaning": "" }, { "metric": "Integrated Climate Control (Cooling · Heating · Humidify · Dehumidify)", "performance": "4 Modes", "meaning": "" } ], "footnote": "* Metrics based on operational assessment. Temperature and humidity tolerance figures reflect design specification of the supplied SANPAR Precision Air Conditioner. Yield improvement is indicative, based on elimination of humidity-induced pustule formation as the primary defect mode. Sensor accuracy per factory specification of ±0.1°C and ±0.1% RH." }, { "heading": "Outcome", "paragraphs": [ "The lesson from Hical Technologies is one that applies across high-value, process-sensitive manufacturing: when the environment in which a process is conducted is not controlled, the process itself cannot be controlled. In Hical's case, the environment was the variable that determined whether an aerospace-grade inductor was a conforming component or a total-loss reject and the cost of that uncertainty, in materials, production time, and quality exposure, was directly eliminated by SANPAR's Precision Air Conditioner.", "What made this project technically demanding was not simply the need for climate control, but the need for four-mode bidirectional climate control, a system that could cool and dehumidify during hot humid conditions, heat and humidity during cold dry conditions, and transition seamlessly between modes as ambient conditions shifted across seasons and between shifts. Standard precision air conditioning addresses only half of this envelope. SANPAR's custom solution addressed all of it.", "The zero-floor-footprint installation through false-ceiling suspension further demonstrates SANPAR's willingness to engineer around the real constraints of a customer's production environment not to offer a standard product and ask the customer to accommodate it, but to design the solution around what the customer actually needs. For Hical Technologies, whose manufacturing environment must support aerospace qualification audits and whose products operate in systems where failure consequences are measured in mission risk, that level of application engineering is not a premium. It is the minimum acceptable standard. SANPAR delivered to it." ] } ] } }, { "id": "hyundai-motor-india-pune", "industry": "Automobile — Passenger Vehicle Assembly", "headline": "Next-Generation Precision, Zero Tolerance for Humidity", "logo": "images/success-stories/hyundai-motors.png", "company": "Hyundai Motor India Ltd. — Pune (Talegaon) Plant", "product": "Refrigerated Dehumidifier", "summary": "CMM standard room held within 40–50% RH year-round at Hyundai's Talegaon plant — through Pune's monsoon and into the first ramp-up year of next-generation vehicle production. IATF 16949 measurement environment compliant from day one, under active AMC.", "full": { "title": "Next-Generation Precision, Zero Tolerance for Humidity: SANPAR Climate Control for Hyundai Motor India's CMM Quality Lab, Pune", "subtitle": "How SANPAR Industries secured year-round humidity control for Hyundai Motor India's coordinate measuring machine facility at its Pune plant — protecting dimensional inspection accuracy in one of India's most demanding automotive manufacturing environments.", "atGlance": [ { "label": "Customer", "value": "Hyundai Motor India Ltd." }, { "label": "Location", "value": "Pune (Talegaon), Maharashtra" }, { "label": "Industry", "value": "Automobile — Passenger Vehicle Assembly" }, { "label": "Year", "value": "2025 (active AMC ongoing)" }, { "label": "Application", "value": "Precision CMM metrology room — relative humidity control within 40–50%" }, { "label": "Challenge", "value": "Pune's intense monsoon season driving ambient RH above 85–90%, threatening CMM measurement integrity and IATF 16949 audit compliance at a new-generation vehicle assembly facility" }, { "label": "Solution", "value": "SANPAR Refrigerated Dehumidifier — fully automatic, built-in hygrostat, continuous RH control within 40–50%" }, { "label": "Result", "value": "CMM environment stabilised within specification from commissioning; measurement reliability secured; active AMC established from day one" } ], "sections": [ { "heading": "Customer Overview", "paragraphs": [ "Hyundai Motor India Ltd. is one of India's largest passenger vehicle manufacturers, with a production presence spanning its established Chennai facility and its newer Pune (Talegaon) plant acquired from General Motors and progressively upgraded to serve Hyundai's expanding India product portfolio and export commitments. The Pune plant is positioned as a key node in Hyundai's India growth strategy, producing vehicles for both domestic customers and international markets.", "The Pune facility operates under Hyundai's global manufacturing system and is certified to IATF 16949, the international automotive quality management standard that governs every aspect of production, measurement, and process control. As Hyundai's product range in India evolves to include electric vehicles alongside its established ICE models, the dimensional precision requirements across body, chassis, battery enclosure, and powertrain components are intensifying. Tighter assembly tolerances, new material combinations, and EV-specific structural requirements are all raising the bar for what the CMM inspection room must reliably deliver.", "In this context, the CMM standard room is not simply a quality checkpoint. It is the calibration anchor for Hyundai's entire dimensional quality system at the Pune plant. Its environmental integrity is a prerequisite for the accuracy of every measurement made within it." ] }, { "heading": "The Challenge", "paragraphs": [ "Pune's climate presents a well-understood challenge for precision manufacturing environments. The city's south-west monsoon season, running from June through September, brings sustained periods of high ambient humidity with relative humidity regularly exceeding 85–90% during active monsoon spells. For a CMM standard room at the Talegaon plant, which sits in an area with significant open land around it and direct exposure to monsoon air masses, the risk of humidity infiltration into the controlled room environment is acute and seasonal.", "CMM measurement accuracy depends on the stability of the ambient environment throughout the inspection process. Hyundai's CMM equipment specification requires relative humidity to be maintained within 40–50% at all times, a band derived from ISO 1-dimensional reference conditions and the thermal and mechanical tolerances of the CMM structure itself. Outside this band, measurement errors accumulate through multiple mechanisms:" ], "bullets": [ "Above 50% RH monsoon exposure: moisture absorption into the granite reference table causes dimensional creep in the datum surface; hygroscopic expansion of the CMM's cast iron and polymer structural elements introduces frame distortion errors; condensation risk on precision ball-screw drives, linear encoders, and air bearing spindles leads to lubricant washout, corrosion pitting, and unplanned instrument downtime", "Below 40% RH — dry pre-monsoon and winter conditions: differential contraction across aluminium and cast-iron machine components, reduced by Pune's relatively moderate dry season compared to more extreme locations, but still sufficient to affect probe calibration stability if humidity drops sharply during the transition between seasons", "Humidity transients during door openings and operator entry: without active dehumidification, brief infiltration of high-humidity corridor air during busy inspection periods can cause localised condensation events on cooled probe components — generating immediate measurement anomalies mid-inspection cycle" ], "trailingParagraphs": [ "For a plant that began a new product and production chapter with the Talegaon facility, establishing reliable measurement infrastructure from the very first day of CMM operation was non-negotiable. Any environmental control gap in the metrology room at commissioning would immediately create an IATF 16949 non-conformance and delay the quality system validation required before volume production could begin.", "The requirement was therefore not just for a dehumidifier, it was for a solution that could be commissioned alongside the CMM equipment itself, validated during plant start-up, and maintained reliably under an active service contract from the outset." ] }, { "heading": "The Solution", "paragraphs": [ "SANPAR Industries was engaged during the Pune plant's CMM room fit-out to provide dedicated humidity control matched to the room's specifications and Pune's ambient climate conditions. Following assessment of the standard room volume, occupancy and equipment heat loads, and the site's seasonal humidity profile, SANPAR supplied its Refrigerated Dehumidifier — configured for year-round automatic operation within the 40–50% RH band required by Hyundai's CMM specification.", "The SANPAR Refrigerated Dehumidifier addresses the Pune application with a system designed for continuous, unattended operation across all seasonal conditions. Its core operational features as deployed at the Talegaon facility:" ], "bullets": [ "Year-round RH control within 40–50%: the refrigerated dehumidifier's capacity is matched to the room's worst-case moisture load, the peak monsoon condition ensuring that even at Pune's highest seasonal ambient humidity, the room stays within specification without the unit being driven to its limits or requiring manual assistance", "Built-in hygrostat with user-configurable setpoint: the unit reads ambient RH continuously and self-manages compressor output to maintain the setpoint band activating when RH rises toward the upper limit and modulating down as the room stabilises, without any operator input across production shifts", "Fully automatic, shift-independent operation: the dehumidifier runs through shift changes, weekend shutdowns, and plant holiday periods, maintaining the CMM room environment continuously. On Monday morning after a weekend monsoon, the CMM room is ready for immediate inspection use with no warm-up, no RH recovery period, no pre-shift conditioning required", "Hermetically sealed refrigerant circuit: leak-free design eliminates refrigerant loss events inside the precision measurement room, removing an unplanned maintenance scenario from the Pune facility's maintenance schedule", "Low-noise, compact cabinet: installed within the standard room without consuming significant floor area, operating unobtrusively during active CMM inspection sessions" ] }, { "heading": "Implementation", "paragraphs": [ "SANPAR's installation team deployed the Refrigerated Dehumidifier at Hyundai's Talegaon CMM room as part of the facility's commissioning programme in 2025. The installation was coordinated with Hyundai's facilities and quality engineering teams to align with the CMM equipment installation and room qualification schedule:" ], "bullets": [ "Site survey confirming room dimensions, thermal load profile, and air circulation layout — unit positioned for uniform humidity coverage across the full CMM working volume, with supply air directed to avoid direct impingement on open inspection fixtures or the CMM machine surface plate", "Electrical connection and condensate drain routing completed within the standard room, with no structural modification to the room envelope or disruption to concurrent CMM installation activities", "Hygrostat commissioning at 40–50% RH setpoint, with control deadband tuned for the Pune monsoon load condition ensuring the system responds promptly to humidity infiltration events such as door openings during peak monsoon spells without overcorrecting and dropping below the lower limit", "Environmental stability verification over a 24-hour commissioning cycle, with RH logging confirming specification compliance before the CMM room was handed over for qualification measurements", "Operator and maintenance team training covering setpoint management, routine filter inspection schedule, condensate drain function check, refrigerant circuit service indicators, and escalation path under the AMC agreement" ], "trailingParagraphs": [ "From commissioning, SANPAR established an Annual Maintenance Contract (AMC) covering the Pune installation providing Hyundai's facilities team with scheduled preventive maintenance visits, priority service response, and a maintained service record that directly supports the IATF 16949 measurement environment traceability requirement for the CMM room." ] }, { "heading": "Results Achieved", "paragraphs": [ "Commissioned in 2025 and supported under active AMC, the SANPAR Refrigerated Dehumidifier at Hyundai's Pune plant has delivered the stable, compliant measurement environment that Hyundai's CMM operations require from the first day of production inspection:" ], "bullets": [ "CMM standard room RH maintained within 40–50% continuously including through Pune's 2025 south-west monsoon season, which brought sustained periods of ambient RH above 85% at the Talegaon site", "CMM measurement environment validated and IATF 16949 compliant from commissioning, the documented RH control record provides the traceability evidence required for quality system sign-off and ongoing audit readiness", "Zero humidity-attributed CMM downtime since commissioning: the inspection station has operated at full availability through the initial production ramp-up period when CMM throughput demand is highest and any interruption has the greatest impact on production scheduling", "Measurement repeatability and first-pass yield maintained at specification: stable RH eliminates the humidity-driven probe and datum drift that would otherwise force re-measurement of borderline dimensional results, protecting CMM station throughput during high-volume inspection periods", "Precision CMM instrument protected from monsoon moisture exposure: ball-screw drives, linear encoders, and probe systems operating in a controlled environment from day one, preserving the OEM calibration intervals and protecting the capital investment in metrology equipment", "Active AMC established from commissioning: SANPAR's maintenance contract ensures the dehumidifier receives scheduled preventive care, with SANPAR's technical team providing priority response to any service requirement removing environmental control from Hyundai's Pune facilities team's list of unmanaged risks" ], "metrics": [ { "metric": "CMM Room RH — Maintained Within Specification", "performance": "> 99%", "meaning": "Held within 40–50% continuously since commissioning, through Pune's 2025 south-west monsoon season with ambient RH regularly above 85% at the Talegaon site. Fully automatic operation maintains the specification band without operator intervention across all shifts and seasonal conditions." }, { "metric": "Humidity-Attributed CMM Downtime Since Commissioning", "performance": "Zero", "meaning": "The CMM inspection station has run at full availability through the entire post-commissioning ramp-up period. At a plant in the early stages of volume production, each hour of CMM availability is directly tied to production scheduling — zero humidity stoppages means zero CMM-constrained delays." }, { "metric": "IATF 16949 Measurement Environment Compliance", "performance": "From Day 1", "meaning": "Documented RH control from the commissioning date provides continuous traceability evidence for the measurement environment. IATF 16949 quality system sign-off achieved at first audit — no measurement environment non-conformances raised during the initial qualification process." }, { "metric": "Monsoon Season RH Exceedance Events (Room)", "performance": "Zero", "meaning": "Pune's 2025 monsoon delivered sustained ambient RH above 85% at the Talegaon site. The dehumidifier's rated capacity — matched to this worst-case load — maintained the room within specification throughout, with no RH exceedance events recorded inside the standard room during the monsoon period." }, { "metric": "CMM First-Pass Inspection Yield", "performance": "Maintained at spec", "meaning": "Stable RH eliminates humidity-induced probe repeatability drift and datum creep that cause otherwise-conforming components to generate borderline or out-of-tolerance first-pass results. Re-measurement cycles avoided — each CMM cycle produces a reliable, audit-defensible result." }, { "metric": "Dehumidifier Running Cost vs. CMM Non-Conformance Cost", "performance": "< 1.5 kW load", "meaning": "Energy Cost of Dehumidification vs. CMM Downtime Cost - < 1.2 kW running load - SANPAR's low-power dehumidification solution delivers continuous humidity control while helping avoid costly quality holds, metrology errors, and production disruptions, making it a cost-effective investment for precision environment." }, { "metric": "AMC Coverage — Environmental Risk Status", "performance": "Managed", "meaning": "Active AMC from commissioning means scheduled preventive maintenance, priority service response, and a maintained service record are in place from day one. The CMM environment is a managed, documented, auditable system — not an unmonitored utility running on goodwill." } ], "footnote": "* Metrics based on operational data from the 2025 commissioning period and automotive metrology environment benchmarks. RH compliance figures reflect post-commissioning system performance through the 2025 monsoon season. Energy figures typical for refrigerated dehumidifier units serving standard rooms of 30–60 m³. AMC coverage details per the active service agreement." }, { "heading": "Outcome", "paragraphs": [ "Hyundai's Pune plant represents a new chapter in Hyundai Motor India's manufacturing footprint — a facility built to produce the next generation of models, including electric vehicles, to the tightest dimensional standards the company has ever applied in India. The CMM standard room at Talegaon is the measurement foundation on which that quality commitment rests.", "SANPAR's engagement at Pune followed the same commissioning-phase model that has proven effective across SANPAR's automotive customer base: specified during plant fit-out, installed and validated alongside the CMM equipment, and maintained under AMC from the first day of production use. This approach eliminates the gap between equipment installation and environmental control qualification, the CMM room is compliant from the moment it enters service, not after a post-commissioning remediation period.", "In an automotive manufacturing environment governed by IATF 16949, where every non-conformance is documented, every audit finding has a corrective action timeline, and every measurement result must be traceable to a validated environmental condition, that compliance from day one is not a convenience. It is the only acceptable standard. The active AMC that SANPAR has established at Pune ensures that standard is maintained, scheduled, documented, and auditable for as long as the plant operates." ] } ] } }, { "id": "jindal-steel-raigarh", "industry": "Integrated Steel Manufacturing", "headline": "Steel Runs on Dry Air: 572 Nm³/min of Moisture-Free Process Air", "logo": "images/success-stories/jindal-steel-power.png", "company": "Jindal Steel & Power Ltd. — Raigarh Plant", "product": "6 × SXD-Series Refrigerated Air Dryers", "summary": "Six SANPAR SXD-series dryers — 572 Nm³/min total across two pressure tiers — supply moisture-free compressed air to blast furnace tuyeres, rolling mills, galvanising lines, and instrument-air circuits at JSPL Raigarh. Plant uptime on air-dependent processes held at ≥97%, all on zero-ODP R407C refrigerant.", "full": { "title": "Steel Runs on Dry Air: 572 Nm³/min of Moisture-Free Process Air for Jindal's Raigarh Plant", "subtitle": "Jindal Steel & Power Ltd. | Raigarh, Chhattisgarh | Integrated Steel Plant", "atGlance": [ { "label": "Year of supply", "value": "2012" }, { "label": "Customer", "value": "Jindal Steel & Power Ltd. (JSPL)" }, { "label": "Location", "value": "Raigarh, Chhattisgarh" }, { "label": "Industry", "value": "Integrated Steel — Hot Rolling, Cold Rolling & Galvanising" }, { "label": "Application", "value": "Blast furnace process air & instrument air — moisture-free compressed air supply across new production facility" }, { "label": "Challenge", "value": "New greenfield facility requiring large-volume, dual-pressure-tier dry compressed air across multiple critical process units" }, { "label": "Solution", "value": "6 × SANPAR SXD-series refrigerated air dryers — 572 Nm³/min total capacity across dual pressure tiers, R407C refrigerant" }, { "label": "Result", "value": "Continuous moisture-free process air across blast furnace, rolling mills, and galvanising lines; plant uptime ≥97% on air-dependent processes" } ], "sections": [ { "heading": "Customer Overview", "paragraphs": [ "Jindal Steel & Power Ltd. (JSPL) is one of India's largest and most diversified steel and power conglomerates, with an annual steel production capacity exceeding 9 million tonnes. The company's Raigarh facility in Chhattisgarh is a fully integrated steel plant encompassing the complete value chain from raw material handling through to finished product including blast furnace ironmaking, hot rolling, cold rolling, and galvanising operations.", "JSPL holds the distinction of operating India's largest integrated galvanising facilities in the private sector, accounting for approximately 25% of total galvanising production nationally. The Raigarh plant supplies high-quality carbon steel and galvanised steel products to India's construction, infrastructure, automotive, and white goods industries, basically in sectors where dimensional precision and surface quality are non-negotiable.", "At the scale and complexity of an integrated steel plant, utilities like compressed air, cooling water, power are not supporting services. They are production infrastructure. Any failure or quality degradation in the compressed air supply propagates immediately and directly into process reliability across every dependent unit operation." ] }, { "heading": "The Challenge", "paragraphs": [ "The new production facility at Raigarh was designed to operate at significant scale, with compressed air demand distributed across multiple high-criticality process units simultaneously. The engineering challenge was not simply one of flow rate, it was the need to deliver consistently dry compressed air at two distinct pressure tiers to process units with fundamentally different operating requirements and failure consequences if air quality fell short.", "In an integrated steel plant, moisture in compressed air attacks the process at multiple levels:" ], "bullets": [ "Blast furnace tuyere injection circuits: moisture-laden air entering high-temperature blast furnace tuyeres causes thermal shock to refractory linings, increases hydrogen content in the reducing gas atmosphere, and creates unpredictable combustion dynamics, all of which degrade furnace productivity and increase the risk of unplanned taps or cooling failures", "Instrument air circuits for process control valves and actuators: water dropout in pneumatic instrument lines causes valve seat erosion, diaphragm actuator corrosion, positioner malfunctions, and solenoid valve failures converting what should be a reliable control system into a source of recurring unplanned maintenance events across the rolling and galvanising lines", "High-pressure circuits at 10.5–14.5 bar(g): at elevated operating pressures, the partial pressure of water vapour increases proportionally, moisture that might remain in vapour form at 7 bar(g) will condense aggressively at 12 bar(g), accelerating corrosion in distribution pipework, control valves, and pneumatic tooling", "Galvanising line air knives and strip coating controls: moisture in the air knife supply directly compromises zinc coating uniformity, causing coating weight variations and surface defects that downgrade finished product to lower-specification grades" ], "trailingParagraphs": [ "The scale of the requirement were six large dryers across dual pressure tiers and the criticality of uninterrupted dry air supply across a new greenfield facility demanded a supplier with both the engineering depth to specify correctly and the manufacturing capacity to deliver reliably at this volume." ] }, { "heading": "The Solution", "paragraphs": [ "SANPAR Industries engineered a comprehensive compressed air drying solution for JSPL Raigarh, specifying six refrigerated air dryers from its SXD-series across two pressure tiers to cover the full process air demand of the new facility. The dryer selection was structured to match the distinct operating pressure and flow requirements of each process group within the plant:" ], "tables": [ { "headers": [ "Model", "Qty", "Capacity", "Operating Pressure", "Refrigerant" ], "rows": [ [ "SXD 1600W", "2 Nos.", "85 Nm³/min each", "6–8 bar(g)", "R407C" ], [ "SXD 1000W", "2 Nos.", "135 Nm³/min each", "6–8 bar(g)", "R407C" ], [ "SXD 850W", "2 Nos.", "66 Nm³/min each", "10.5–14.5 bar(g)", "R407C" ], [ "Total Installed Capacity (6 units)", "", "572 Nm³/min", "Dual pressure tiers", "Eco-friendly R407C refrigerant" ] ] } ], "trailingParagraphs": [ "The dual-tier pressure architecture reflects the plant's actual compressed air distribution design: lower pressure (6–8 bar(g)) for the blast furnace air supply and general process circuits served by the SXD 1600W and SXD 1000W units, and higher pressure (10.5–14.5 bar(g)) for instrument air circuits and specialised process applications served by the SXD 850W units.", "All six systems use R407C as the refrigerant, a hydrofluorocarbon blend with zero ozone depletion potential (ODP = 0), selected both for its environmental compliance credentials and its thermodynamic suitability for the operating conditions at Raigarh. Key design features of the SXD-series dryers as supplied:" ], "secondaryBullets": [ "Refrigerated air drying operating on direct expansion principle is typically moisture condensed and drained ahead of process distribution, delivering consistent pressure dew point of +3°C or better at rated conditions", "Water-cooled condenser configuration available for high-ambient-temperature industrial environments, reducing sensitivity to plant floor temperature variations", "Automatic condensate drain systems on each unit with zero operator intervention required for condensate management during continuous operation", "Robust heat exchanger construction rated for continuous-duty industrial environments with minimal scheduled maintenance requirements", "Scalable architecture which the six-dryer installation allows individual units to be isolated for scheduled maintenance while the remaining units continue to serve process demand" ] }, { "heading": "Implementation", "paragraphs": [ "SANPAR coordinated the installation and commissioning of all six SXD-series dryers at JSPL's Raigarh facility as part of the new production plant's compressed air infrastructure build-out. The scope of SANPAR's delivery extended beyond equipment supply to full on-site technical ownership through commissioning:" ], "bullets": [ "Pre-commissioning inspection of all six units and verification of compressed air piping connections, condensate drain routing, and cooling water supply (where applicable) for each dryer position", "Sequential commissioning of each dryer unit, with refrigerant circuit charge verification, expansion valve adjustment, and pressure dew point measurement at rated operating conditions before each unit was released to service", "Dual-tier pressure verification: separate commissioning sign-off protocols applied to the 6–8 bar(g) circuit dryers and the 10.5–14.5 bar(g) circuit dryers, with PDP confirmation at both operating pressure levels", "Integration with the plant's compressed air distribution headers and condensate collection system", "Comprehensive operator and maintenance team training covering daily operational checks, PDP monitoring, condensate drain test procedures, refrigerant circuit indicators, and first-response maintenance protocols" ], "trailingParagraphs": [ "SANPAR's after-sales commitment provided JSPL's engineering and maintenance teams with the technical support backbone required during initial plant ramp-up, a period when system reliability is most critical and the cost of any downtime is at its highest." ] }, { "heading": "Results Achieved", "paragraphs": [ "The commissioning of SANPAR's six-dryer installation delivered sustained, plant-wide dry compressed air performance across JSPL Raigarh's new production facility, with measurable impact on process reliability, equipment protection, and operational continuity:" ], "bullets": [ "Continuous moisture-free compressed air supply at both pressure tiers like blast furnace and process circuits at 6–8 bar(g), instrument air and specialised circuits at 10.5–14.5 bar(g) maintained to PDP ≥ +3°C across all operating conditions", "Blast furnace air supply quality stabilised moisture-related tuyere circuit incidents eliminated, protecting refractory integrity and maintaining consistent furnace productivity across production campaigns", "Instrument air circuit reliability significantly improved pneumatic valve and actuator failures attributable to moisture ingress reduced by over 80%, recovering maintenance hours and reducing spare parts consumption across the rolling and galvanising control systems", "Galvanising line air knife supply quality maintained consistent dry air delivery supporting uniform zinc coating weight and surface quality on finished strip product", "High-pressure circuit pipework and tooling protected from internal corrosion, the step-change reduction in moisture exposure at 10.5–14.5 bar(g) measurably extending the service life of downstream pneumatic components", "Plant compressed air uptime for air-dependent processes maintained at ≥97% moisture-related process trips and unplanned maintenance events effectively eliminated as a recurring downtime cause", "R407C refrigerant across all six units confirms zero ozone depletion potential, supporting JSPL's environmental compliance obligations and ESG reporting requirements" ], "metrics": [ { "metric": "Total Installed Drying Capacity across 6 SANPAR dryer units", "performance": "572 Nm³/min", "meaning": "" }, { "metric": "Pressure Dew Point Delivered at both pressure tiers", "performance": "3 ±2°C PDP", "meaning": "" }, { "metric": "Blast Furnace & Process Air Uptime (moisture-related trips eliminated)", "performance": "≥97%", "meaning": "" }, { "metric": "Reduction in Pneumatic Valve & Actuator Failures (instrument air circuits)", "performance": ">80%", "meaning": "" }, { "metric": "Zero ODP Refrigerant (Ozone Depletion Potential = 0)", "performance": "R407C", "meaning": "" }, { "metric": "Dryers Commissioned Across Dual Pressure Tiers at a Single Facility", "performance": "6 Units", "meaning": "" } ], "footnote": "* Metrics based on operational assessment and steel plant compressed air application benchmarks. PDP figures reflect design targets of the supplied SXD-series dryers. Uptime and valve failure reduction figures are indicative, based on elimination of identified moisture ingress failure modes in blast furnace and instrument air circuits." }, { "heading": "Outcome", "paragraphs": [ "For a plant of the scale and complexity of JSPL Raigarh, the reliability of compressed air is not a maintenance concern. It is a production concern. When moisture enters the blast furnace air circuit or the instrument air distribution of a rolling mill, the consequences are measured not in maintenance hours but in production tonnes lost, product quality downgrades, and the compounding cost of refractory or equipment damage that cascades from a single avoidable failure.", "SANPAR's ability to engineer and deliver a six-dryer, dual-pressure-tier solution at 572 Nm³/min total capacity and commission it successfully as part of a greenfield plant build-out reflects a level of large-scale project capability that goes well beyond standard equipment supply. The SXD-series dryers installed at Raigarh are not catalogue units dropped into a specification. They are correctly sized, correctly pressured, and correctly sequenced across the plant's compressed air architecture.", "The outcome at Raigarh confirms what Jindal's engineering teams required at the outset: that quality air at critical process points is non-negotiable, and that the right compressed air treatment infrastructure is the foundation on which production uptime, product quality, and market share are protected. SANPAR remains a committed technical partner to JSPL for the ongoing reliability of that infrastructure." ] } ] } }, { "id": "kia-motors-anantpur", "industry": "Automobile — Passenger Vehicle Assembly", "headline": "Holding Tolerances at the World's Fastest-Ramped Auto Plant", "logo": "images/success-stories/kia-motors.png", "company": "KIA Motors India Pvt. Ltd. — Anantpur Plant", "product": "Refrigerated Dehumidifier", "summary": "CMM standard room held within 40–50% RH year-round at KIA's Anantpur plant — through monsoon and dry summer extremes since 2019. Active AMC sustained for 5+ years: zero humidity-attributed CMM downtime and IATF 16949 measurement environment compliance maintained continuously.", "full": { "title": "Holding Tolerances at the World's Fastest-Ramped Auto Plant: SANPAR Climate Control for KIA Motors' CMM Quality Lab, Anantpur", "subtitle": "How SANPAR Industries delivered precision humidity control for KIA Motors' coordinate measuring machine facility at the Anantpur assembly plant and earned an active annual maintenance contract through sustained performance since 2019.", "atGlance": [ { "label": "Customer", "value": "KIA Motors India Pvt. Ltd." }, { "label": "Location", "value": "Anantpur (Anantapur), Andhra Pradesh" }, { "label": "Industry", "value": "Automobile — Passenger Vehicle Assembly" }, { "label": "Year", "value": "2019 (active AMC ongoing)" }, { "label": "Application", "value": "Precision CMM metrology room — relative humidity control within 40–50%" }, { "label": "Challenge", "value": "Seasonal humidity extremes at Anantpur causing RH excursions in the CMM standard room, threatening measurement accuracy and IATF 16949 compliance" }, { "label": "Solution", "value": "SANPAR Refrigerated Dehumidifier fully automatic, built-in hygrostat, continuous RH control within 40–50%" }, { "label": "Result", "value": "CMM environment maintained within specification year-round; measurement reliability secured; active AMC in place since commissioning" } ], "sections": [ { "heading": "Customer Overview", "paragraphs": [ "KIA Motors India Pvt. Ltd. operates one of India's most significant automotive greenfield investments that is a fully integrated passenger vehicle assembly plant at Anantpur in Andhra Pradesh. Established in 2019, the Anantpur plant achieved what the industry recognises as one of the fastest production ramp-ups in Indian automotive history, reaching 300,000 units per year capacity within its first two years of operation. The facility produces KIA's Seltos, Sonet, and Carens models for the domestic market and export.", "The Anantpur plant operates under KIA's global manufacturing standards and is certified to IATF 16949 the international quality management standard for automotive production. This certification mandates, among many requirements, that measurement and inspection equipment operates within defined and documented environmental conditions. For precision CMM (Coordinate Measuring Machine) equipment, this means temperature and relative humidity must be controlled to specified tolerances at all times during inspection operations.", "At a plant assembling tens of thousands of vehicles per month, the CMM inspection room is a critical quality gate that every key body, chassis, and powertrain component passes through dimensional verification before it is cleared for assembly. The reliability of the CMM environment is therefore directly linked to the reliability of KIA's production quality control system." ] }, { "heading": "The Challenge", "paragraphs": [ "Anantpur district sits in the rain shadow of the Eastern Ghats and is one of the driest districts in Andhra Pradesh for most of the year. However, the region is subject to significant seasonal humidity variation: during the north-east monsoon months (October to December), ambient relative humidity can climb sharply, while the pre-monsoon summer months bring hot, dry conditions. This seasonal swing creates a demanding two-directional climate challenge for any precision measurement environment at the site.", "KIA's CMM standard room required relative humidity to be maintained within 40–50% at all times is a specification derived from ISO 1-dimensional measurement reference conditions and the environmental tolerances of the CMM equipment itself. Without active humidity control, the Anantpur site's climate would expose the CMM room to conditions well outside this band at both extremes of the annual cycle:" ], "bullets": [ "During monsoon and post-monsoon months: ambient RH rising above 75–85%, driving the CMM room above the 50% upper limit introducing moisture absorption into the granite surface plate, thermal gradients in the machine structure, and condensation risk on precision ball-screw drives and linear encoders", "During peak summer months: low ambient humidity pulling the room below 40% causing differential contraction in cast iron and aluminium machine components, affecting probe calibration stability and measurement repeatability", "Uncontrolled RH excursions in either direction invalidate the environmental traceability record required for IATF 16949 compliance that is a formal audit finding that places KIA's supplier approval status at risk with its OEM customers." ], "trailingParagraphs": [ "For a new plant ramping production at KIA's pace, any interruption to the CMM inspection flow has an amplified impact. With production volumes scaling rapidly, the CMM station is under continuous load, there is no buffer time for unplanned recalibration events, measurement re-runs caused by environmental non-compliance, or maintenance downtime on the dehumidification system. The requirement from the outset was for a solution that would be reliable, automatic, and low-maintenance from day one of plant operations." ] }, { "heading": "The Solution", "paragraphs": [ "SANPAR Industries was engaged during the commissioning phase of KIA's Anantpur plant to provide a dedicated humidity control solution for the CMM standard room. Following assessment of the room's volume, thermal load, and the site's ambient humidity range across all seasons, SANPAR recommended its Refrigerated Dehumidifier configured for continuous, fully automatic operation within the 40–50% RH target band.", "The SANPAR Refrigerated Dehumidifier operates on the refrigeration-condensation principle: room air is drawn across a chilled evaporator coil, cooled below its dew point so moisture condenses and drains away, with the dried air returned to the room at the target humidity level. The system was specified and commissioned with the following key operational features:" ], "bullets": [ "Continuous RH control within 40–50% across the full Anantpur seasonal range from peak monsoon humidity to dry summer conditions without manual intervention or setpoint adjustment between seasons.", "Integrated built-in hygrostat with user-configurable RH setpoint: the unit activates, modulates output, and shuts down automatically based on real-time humidity sensing with no operator involvement required during production shifts.", "Fully automatic operation: the dehumidifier self-manages across shift changes, weekends, and plant shutdown periods, maintaining the CMM room environment continuously without dependence on operator availability.", "Hermetically sealed refrigerant circuit: eliminates refrigerant leak risk inside the precision measurement room environment, and removes leak detection and recharge events from the maintenance schedule.", "Compact, self-contained cabinet design suitable for installation within the CMM standard room without consuming significant floor area or requiring structural modification to the room." ] }, { "heading": "Implementation", "paragraphs": [ "SANPAR's installation team completed the deployment at KIA's Anantpur CMM room as part of the plant's commissioning schedule in 2019, coordinating with KIA's facilities and quality engineering teams to integrate the dehumidifier within the standard room layout. The implementation scope covered:" ], "bullets": [ "Site survey and unit positioning to optimise air circulation coverage across the CMM room volume, with supply and return air orientated away from direct impingement on the CMM machine and open inspection fixtures.", "Electrical connection and condensate drain routing within the standard room, completed without structural modification to the room envelope.", "Hygrostat commissioning and setpoint configuration at 40–50% RH, with control deadband calibrated to maintain the room within specification tolerance against transient disturbances such as door openings and operator entry.", "24-hour operational stability verification prior to CMM room handover for production inspection use.", "Operator and maintenance team training covering daily operational checks, setpoint adjustment procedure, filter maintenance schedule, condensate tray inspection, and fault indicator response." ], "trailingParagraphs": [ "Since commissioning, SANPAR has maintained an active Annual Maintenance Contract (AMC) for the Anantpur installation providing KIA's facilities team with scheduled preventive maintenance visits, priority response for any service requirements, and a documented service record that supports KIA's IATF 16949 measurement environment traceability requirements." ] }, { "heading": "Results Achieved", "paragraphs": [ "Since commissioning in 2019, the SANPAR Refrigerated Dehumidifier has maintained continuous, stable humidity control in KIA's CMM standard room at Anantpur delivering the measurement environment reliability that a global automotive OEM demands from its quality infrastructure:" ], "bullets": [ "CMM standard room RH maintained within 40–50% year-round, including through Anantpur's seasonal humidity extremes in both the monsoon and dry summer periods.", "CMM measurement repeatability and traceability maintained within specification continuously with no humidity-attributed measurement non-conformances or recalibration events recorded since commissioning.", "IATF 16949 measurement environment compliance sustained: the dehumidifier's continuous operation and the AMC service record provide the documented environmental control evidence required for quality system audits.", "Unplanned CMM downtime attributable to humidity excursions effectively zero, the CMM inspection station operates at full availability throughout the production shift schedule.", "Moisture ingress to CMM precision drives, encoders, and probe systems eliminated by protecting the capital value of KIA's metrology equipment and maintaining the manufacturer's specified calibration intervals.", "Active AMC since 2019: SANPAR's ongoing maintenance contract has delivered consistent system performance without unplanned service interventions confirming the reliability of the installed dehumidifier across more than five years of continuous operation at the Anantpur plant." ], "metrics": [ { "metric": "CMM Room RH — Maintained Within Specification", "performance": "> 99%", "meaning": "Relative humidity held within 40–50% continuously across all seasons and shift patterns since 2019 commissioning. Both monsoon humidity peaks and dry summer lows managed without manual setpoint adjustment or operator intervention." }, { "metric": "Unplanned CMM Downtime (Humidity-Attributed)", "performance": "~Zero hrs/month", "meaning": "At a plant assembling tens of thousands of vehicles per month, the CMM inspection station is under continuous load. Any downtime directly delays component release and stalls production flow. Humidity-related stoppages eliminated since commissioning." }, { "metric": "IATF 16949 Measurement Environment Compliance", "performance": "Sustained", "meaning": "Continuous documented RH control provides the traceability evidence required for measurement environment compliance under IATF 16949. Removes a recurring audit finding risk and protects KIA's supplier and OEM approval status." }, { "metric": "CMM Measurement Re-run Rate (Environment-Related)", "performance": "> 50% reduction", "meaning": "Stabilised RH eliminates the humidity-induced probe repeatability and datum drift that forces re-measurement of borderline results. First-pass inspection acceptance rate improved, reducing operator time per inspection cycle and increasing CMM station throughput." }, { "metric": "Dehumidifier System Reliability (AMC Period)", "performance": "> 5 years", "meaning": "Active AMC in place since 2019 with no unplanned system failures recorded. SANPAR's scheduled preventive maintenance programme has sustained continuous performance is a track record that justifies the AMC renewal and confirms equipment reliability over the full plant operating period to date." }, { "metric": "Energy Cost of Dehumidification vs. CMM Downtime Cost", "performance": "< 1.2 kW running load", "meaning": "Energy Cost of Dehumidification vs. CMM Downtime Cost - < 1.2 kW running load - SANPAR's low-power dehumidification solution delivers continuous humidity control while helping avoid costly quality holds, metrology errors, and production disruptions, making it a cost-effective investment for precision environment." }, { "metric": "CMM Capital Asset Protection", "performance": "Ongoing", "meaning": "Moisture ingress to ball-screw drives, linear encoders, and air bearings is the primary cause of premature CMM wear and calibration drift. Continuous RH control within specification protects a multi-crore metrology investment and maintains OEM-specified calibration intervals without accelerated deterioration." } ], "footnote": "* Metrics based on operational assessment and automotive metrology environment benchmarks. RH compliance and downtime figures reflect system performance since 2019 commissioning. Re-run rate reduction is indicative based on elimination of humidity excursion as the identified measurement instability mechanism. Energy figures typical for refrigerated dehumidifier units serving standard rooms of 30–60 m³." }, { "heading": "Outcome", "paragraphs": [ "KIA's Anantpur plant entered production in 2019 with one of the most ambitious ramp-up schedules in Indian automotive history. In that environment, every element of the quality infrastructure had to perform from day one where there was no tolerance for a commissioning period on critical metrology equipment. SANPAR's Refrigerated Dehumidifier delivered exactly that: stable, automatic CMM environment control from the first day of production inspection, without requiring ongoing operator attention or manual seasonal adjustment.", "The active AMC that has been in place since commissioning is the clearest possible statement of the outcome. KIA's facilities and quality teams do not renew a maintenance contract on equipment that does not perform. Five-plus years of continuous AMC reflects five-plus years of reliable service in a plant operating at global OEM standards, where performance is measured, documented, and audited.", "For plant heads and facilities engineers in automotive manufacturing, the lesson from KIA Anantpur is consistent with what precision manufacturers across industries have learned: the cost of protecting the CMM environment is orders of magnitude lower than the cost of a measurement non-conformance, an IATF audit finding, or a customer quality hold event. SANPAR's humidity control solution does not just protect a machine. It protects the integrity of every quality decision made at that machine and by extension, the quality assurance system of the entire plant." ] } ] } }, { "id": "manjushree-technopack-assam", "industry": "PET Packaging — Rigid Container Manufacturing", "headline": "35 Bar. 1000 CFM. Zero Compromise.", "logo": "images/success-stories/manjushree.png", "company": "Manjushree Technopack Ltd. — Assam Plant", "product": "Custom High-Pressure Refrigerated Non-Cyclic DX Air Dryer + Filtration Train", "summary": "Custom-engineered 1000 CFM non-cyclic DX dryer operating at 25–35 bar(g) with full pre / after / activated-carbon filtration delivers +3°C PDP and < 0.003 ppm residual oil to Manjushree's PET stretch blow moulding line. Blowing line uptime ≥ 95%, bottle rejects down > 70%, and a 500 CFM repeat order placed in the same year.", "full": { "title": "35 Bar. 1000 CFM. Zero Compromise: Protecting PET Bottle Quality at the Limits of Compressed Air", "subtitle": "Manjushree Technopack Ltd. | Assam | PET Packaging", "atGlance": [ { "label": "Year of Supply", "value": "2025" }, { "label": "Customer", "value": "Manjushree Technopack Ltd." }, { "label": "Location", "value": "Assam, India" }, { "label": "Industry", "value": "PET Packaging — Rigid Container Manufacturing" }, { "label": "Application", "value": "High-pressure compressed air drying for PET stretch blow moulding" }, { "label": "Challenge", "value": "Moisture and oil contamination in compressed air at 25–35 bar(g) causing bottle defects and blowing line unreliability" }, { "label": "Solution", "value": "Custom SANPAR refrigerated non-cyclic DX air dryer (1000 CFM, 25–35 bar(g)) with complete filtration package including carbon filter" }, { "label": "Result", "value": "Blowing line uptime ≥95%, bottle reject rate reduced >70%; repeat order placed for 500 CFM expansion unit" } ], "sections": [ { "heading": "Customer Overview", "paragraphs": [ "Manjushree Technopack Ltd. is one of India's largest rigid PET packaging manufacturers, supplying bottles, jars, and preforms to leading FMCG, food & beverage, pharmaceutical, and personal care brands across the country and internationally. With manufacturing facilities spread across multiple states — including their Assam plant serving the North and North-East India markets — Manjushree operates high-speed PET stretch blow moulding lines running at demanding production volumes.", "PET bottle blowing is a capital-intensive, continuous-run manufacturing process. Blowing lines operate around the clock, and production efficiency is measured in thousands of bottles per hour. In this environment, compressed air is not a utility — it is a direct process input. The quality, pressure, and dryness of the compressed air used in the blowing process determines, in large part, the quality and consistency of every bottle produced." ] }, { "heading": "The Challenge", "paragraphs": [ "PET stretch blow moulding operates on a process where a preform is heated to its glass transition temperature and then expanded inside a mould using a precisely timed high-pressure air blast — typically delivered at 25 to 40 bar(g). At these extreme pressures, compressed air presents a fundamentally different contamination profile compared to standard instrument air systems operating at 7–10 bar(g).", "The core challenge at Manjushree's Assam facility was ensuring that the compressed air delivered to the blowing machines at 25–35 bar(g) was consistently dry, clean, and free of oil aerosols. Untreated or inadequately treated high-pressure air at this pressure range carries compounded risks:" ], "bullets": [ "Moisture at 25–35 bar(g) has a significantly elevated partial pressure — even small absolute water content translates to aggressive liquid water dropout inside blow moulds and air circuits, causing surface defects on bottle interiors, mould cavity corrosion, and valve seat erosion in high-pressure blowing valves", "Oil carryover from high-pressure compressors, if not removed by a carbon filter stage, deposits on mould surfaces and transfers to bottle interiors — a critical food-contact contamination risk with direct regulatory implications under FSSAI and international food packaging standards", "Standard cyclic refrigerated dryers are unsuitable at pressures above approximately 16 bar(g) due to heat exchanger pressure rating limitations and refrigerant circuit design constraints — a standard off-the-shelf dryer could not be used for this application", "Inadequate drying leads to chiller valve freeze-up, solenoid pilot valve failures, and premature seal degradation in blowing machine pneumatic circuits — failures that cause unplanned line stoppages mid-production run", "Moisture-induced bottle wall thickness variations and blowhole defects result in bottles failing burst pressure and top-load tests, driving reject rates up and increasing resin wastage — a direct raw material cost impact" ], "trailingParagraphs": [ "No standard catalogue product existed in the Indian market that could address all of these requirements within a single, integrated package. Manjushree required a custom-engineered solution built specifically for the pressure range, flow rate, and air quality demands of their blowing line." ] }, { "heading": "The Solution", "paragraphs": [ "SANPAR Industries designed and manufactured a custom refrigerated non-cyclic direct expansion (DX) air dryer configured specifically for Manjushree Technopack's high-pressure blowing application. This was not an adaptation of a standard product — the dryer was engineered from the ground up to operate reliably and continuously at the demanding pressure and flow conditions of the Assam facility.", "The supplied system specification:" ], "bullets": [ "Flow Rate: 1000 CFM (free air delivery equivalent)", "Operating Pressure: 25–35 bar(g) — pressure-rated heat exchangers, pressure vessels, and refrigerant circuit designed for continuous operation across the full pressure range", "Dryer Type: Non-cyclic refrigerated direct expansion — the refrigeration circuit runs continuously, eliminating the load-cycling behaviour of standard cyclic dryers that can cause dew point spikes during low-load periods", "Pressure Dew Point: Designed to achieve a PDP of +3°C or better at operating pressure, ensuring no liquid water dropout in the downstream blowing circuits" ], "trailingParagraphs": [ "The complete filtration package supplied alongside the dryer addressed the full compressed air quality requirement:" ], "secondaryBullets": [ "Pre-filter: bulk liquid and particulate removal upstream of the dryer to protect heat exchanger surfaces", "After-filter: sub-micron aerosol and particulate filtration downstream of the dryer", "Carbon filter: activated carbon adsorption stage to reduce residual oil vapour content to less than 0.003 ppm — meeting ISO 8573-1 Class 1 oil content requirements for food-contact packaging applications" ], "tables": [ { "headers": [ "Parameter", "Specification" ], "rows": [ [ "Flow Rate", "1000 CFM (FAD equivalent)" ], [ "Operating Pressure", "25–35 bar(g)" ], [ "Dryer Type", "Refrigerated Non-Cyclic Direct Expansion (DX)" ], [ "Pressure Dew Point", "+3°C or better at operating pressure" ], [ "Filtration Train", "Pre-filter → Dryer → After-filter → Activated Carbon" ], [ "Residual Oil at Outlet", "< 0.003 ppm (ISO 8573-1 Class 1)" ] ] } ], "endParagraphs": [ "The non-cyclic DX design was specifically selected to ensure stable, consistent dew point performance across all production load conditions — whether the blowing line is running at full capacity or during start-up and partial-load transitions." ] }, { "heading": "Implementation", "paragraphs": [ "SANPAR's engineering and installation team managed the full deployment at Manjushree's Assam facility, coordinating the integration of the high-pressure dryer and filtration package into the existing compressed air network feeding the blowing machines. Key implementation steps:" ], "bullets": [ "Pre-installation engineering review of the compressed air circuit layout, pressure drop budget allocation, and interconnection points between the high-pressure compressors and the blowing line distribution header", "Mechanical installation of the dryer and three-stage filtration package in the correct sequence — pre-filter, dryer, after-filter, carbon filter — with isolation valves for maintenance bypass capability", "Pressure testing of all high-pressure connections and joints to 1.5× operating pressure per applicable pressure vessel standards before system commissioning", "Refrigerant circuit commissioning, refrigerant charge verification, and DX superheat optimisation to confirm stable evaporator operation at the target PDP", "Dew point measurement and logging across a full production shift to verify PDP compliance before handover to production", "Operator and maintenance team training covering filter element change intervals, condensate drain inspection, dew point monitoring, and refrigerant circuit service indicators" ], "trailingParagraphs": [ "SANPAR's prompt after-sales support commitment ensured continued technical availability to Manjushree's engineering team during the initial production ramp-up period." ] }, { "heading": "Results Achieved", "paragraphs": [ "Commissioning of the SANPAR custom high-pressure dryer and filtration package at Manjushree's Assam facility delivered the air quality and system reliability needed to run the blowing line at full production efficiency:" ], "bullets": [ "Compressed air delivered to blowing machines at consistent PDP of +3°C or better at 25–35 bar(g) — eliminating liquid water dropout in blow moulds and high-pressure valve circuits across all production shifts and seasonal conditions", "Residual oil content reduced to below 0.003 ppm at the blowing machine inlet — meeting ISO 8573-1 Class 1 oil requirements and removing the food-contact contamination risk from compressed air", "Blowing line uptime improved to ≥95% — unplanned stoppages caused by chiller valve freeze-up, solenoid valve failures, and moisture-related pneumatic faults effectively eliminated", "Bottle reject rate attributable to compressed air moisture and oil contamination reduced by over 70% — recovering significant resin material value and reducing QC rework burden per production shift", "High-pressure pneumatic components in the blowing machines — including blowing valves, seals, and pilot circuits — protected from moisture and oil ingress, measurably extending service intervals and reducing spare parts consumption", "Stable non-cyclic DX operation confirmed consistent dew point performance during both full-load production runs and partial-load start-up conditions — no dew point spikes observed" ], "metrics": [ { "metric": "Pressure Dew Point Achieved at 25–35 bar(g) operating pressure", "performance": "2°C - 5°C PDP", "meaning": "" }, { "metric": "Residual Oil Content post Carbon Filter (vs. ~1 ppm untreated)", "performance": "<0.003 ppm", "meaning": "" }, { "metric": "Blowing Line Uptime (moisture-related stoppages eliminated)", "performance": ">95%", "meaning": "" }, { "metric": "Reduction in Bottle Reject Rate due to moisture & oil defects", "performance": ">70%", "meaning": "" }, { "metric": "Installed Air Treatment Capacity (Phase 1 + Repeat Order)", "performance": "1000 CFM →1500 CFM", "meaning": "" }, { "metric": "repeat order in the same year", "performance": "500 CFM", "meaning": "" } ], "footnote": "Metrics based on operational assessment and industry benchmarks for high-pressure PET blowing applications. PDP and oil content figures reflect design targets of the supplied dryer and filtration package. Uptime and reject rate improvements are indicative based on elimination of identified moisture and contamination failure modes." }, { "heading": "Outcome", "paragraphs": [ "The performance of SANPAR's custom high-pressure dryer installation at Manjushree's Assam facility established a clear and measurable link between compressed air quality and blowing line productivity. In a process where every percentage point of uptime translates directly to bottle output and revenue, and where every reject bottle represents wasted PET resin, energy, and machine time, the economics of correctly specified air treatment are unambiguous.", "Manjushree Technopack's decision to place a repeat order — for a 500 CFM unit with a restructured pressure specification — is the strongest possible endorsement of SANPAR's engineering and product reliability. The repeat order reflects not just satisfaction with the first installation, but a deliberate choice to standardise on SANPAR's solution as the Assam facility's compressed air treatment platform scales with production capacity.", "For plant heads and utility engineers managing high-pressure PET blowing operations, the lesson from Manjushree is consistent with what SANPAR's customers across industries confirm: the cost of a correctly engineered, application-specific air treatment system is a fraction of the cost of the production losses, reject material, and pneumatic maintenance that inadequate treatment generates. SANPAR's ability to design and manufacture to non-standard pressure and flow requirements — rather than forcing the application to fit a catalogue product — is what makes this kind of outcome possible." ] } ] } }, { "id": "sail-iisco-burnpur", "industry": "Integrated Steel — Process Industry", "headline": "Powering Steel: 40,000 CFM of Centralised Instrument Air", "logo": "images/success-stories/sail.png", "company": "SAIL — IISCO Steel Plant, Burnpur", "product": "10 × XEROS Series Water-Cooled Refrigerated Air Dryers", "summary": "Ten matched XEROS Series water-cooled dryers — 4,000 CFM each, 40,000 CFM total — form the centralised instrument-air drying bank for SAIL's IISCO Burnpur modernisation. Continuous moisture-free air to Coke Oven Battery, Sinter Plant, Power & Blowing Station, and Wire Rod Mill; ≥ 99% bank availability with 15–20% lower auxiliary power vs an air-cooled alternative.", "full": { "title": "Powering Steel: Centralised Moisture-Free Instrument Air Across a Giant Integrated Plant", "subtitle": "Supporting landmark modernisation and expansion drive | SAIL, Burnpur, West Bengal", "atGlance": [ { "label": "Year of supply", "value": "2010" }, { "label": "Customer", "value": "Steel Authority of India Limited (SAIL) — IISCO Steel Plant" }, { "label": "Location", "value": "Burnpur, West Bengal, India" }, { "label": "Industry", "value": "Integrated Steel — Process Industry" }, { "label": "Application", "value": "Centralised instrument air drying for multi-unit plant automation across Coke Oven Battery, Sinter Plant, Power & Blowing Station, Wire Rod Mill, and associated plant systems" }, { "label": "Challenge", "value": "Supplying 40,000 CFM of moisture-free, instrument-quality compressed air reliably across a large integrated steel plant undergoing modernisation — while minimising auxiliary power draw on a constrained plant electrical network" }, { "label": "Solution", "value": "10 × SANPAR XEROS Series water-cooled refrigerated air dryers, 4,000 CFM each, deployed as a centralised instrument air treatment system" }, { "label": "Result", "value": "Continuous, moisture-free instrument air supply protecting pneumatic control systems across all major production units, with reduced power consumption compared to air-cooled alternatives — supporting the plant's sustained high-capacity operation" } ], "sections": [ { "heading": "Customer Overview", "paragraphs": [ "Steel Authority of India Limited (SAIL) is one of the largest steel-making enterprises in India and among the foremost steel producers globally. SAIL's IISCO Steel Plant at Burnpur, West Bengal, is one of the oldest integrated steel plants in the country, with a history spanning over a century. The plant is engaged in the production of long products like primarily rails, structural sections, and wire rods while supplying critical infrastructure sectors including Indian Railways and construction.", "In the late 2000s, SAIL embarked on an ambitious modernisation and capacity expansion programme at IISCO Burnpur, upgrading the Coke Oven Batteries, Sinter Plant, Blast Furnace, Power & Blowing Station, and Wire Rod Mill to state-of-the-art standards. This modernisation demanded a fully reliable centralised instrument air infrastructure to support the new generation of pneumatic control and automation systems across the expanded plant." ] }, { "heading": "The Challenge", "paragraphs": [ "In an integrated steel plant, instrument air is the lifeblood of process control. Pneumatic actuators, control valves, positioners, and instrumentation systems across every major production unit from the coke ovens to the rolling mills depend on a continuous, uninterrupted supply of clean, dry compressed air. Moisture in instrument air is the single most common cause of:" ], "bullets": [ "Control valve seat corrosion and stiction, leading to process excursions and unplanned downtime", "Instrument diaphragm and seal degradation, increasing maintenance frequency and spares consumption", "Condensate accumulation in pneumatic lines, causing water hammer, signal errors, and freeze-related blockages in cooler seasons", "Premature failure of solenoid valves and positioners in safety-critical interlocks" ], "trailingParagraphs": [ "The IISCO modernisation project required a single centralised drying system capable of treating the full instrument air flow for the expanded plant estimated in the range of 40,000 CFM at operating pressure. Critically, the system needed to be water-cooled rather than air-cooled. In the dense, high-temperature environment of an operating steel plant, ambient air temperatures at compressor house level routinely exceed values at which air-cooled dryers lose capacity and efficiency. Water cooling eliminates this derating effect entirely, delivering consistent dew-point performance irrespective of ambient conditions while also significantly reducing the auxiliary electrical load on the plant power network.", "The scale of the requirement being ten large-capacity dryer units operating in parallel called for a supplier with proven large-capacity manufacturing capability, the ability to deliver matched units to a project schedule, and the engineering support to commission the full system within the plant's construction milestones." ] }, { "heading": "The Solution", "paragraphs": [ "SANPAR supplied ten units of its XEROS Series Refrigerated Air Dryer, each rated at 4,000 CFM, to form the centralised instrument air drying bank for IISCO Steel Plant. The selection of the XEROS platform for this application was driven by several key engineering attributes:" ], "tables": [ { "headers": [ "Parameter", "XEROS Series — Details" ], "rows": [ [ "Units supplied", "10 Nos. XEROS Series refrigerated air dryers" ], [ "Capacity per unit", "4,000 CFM" ], [ "Total installed capacity", "40,000 CFM" ], [ "Condenser type", "Water-cooled — consistent dew-point performance independent of ambient temperature" ], [ "Power advantage", "Lower auxiliary power consumption vs. equivalent air-cooled dryers — important on a large steel plant power network" ], [ "Heat exchanger", "Compact aluminium plate-type air-to-refrigerant heat exchanger for efficient moisture separation" ] ] } ], "trailingParagraphs": [ "The XEROS water-cooled configuration is particularly suited to process industry environments where high ambient temperatures and limited ventilation in compressor rooms would otherwise compromise dryer performance. By rejecting condenser heat to the plant cooling water circuit, the dryers maintain their rated pressure dew-point (PDP) output consistently throughout the year, regardless of seasonal ambient variation.", "Ten dryers were arranged as a parallel bank, allowing individual units to be isolated for maintenance without interrupting instrument air supply to production, a critical operational requirement in a continuously running steel plant where a full shutdown for dryer maintenance is not feasible." ] }, { "heading": "Implementation", "paragraphs": [ "SANPAR's delivery scope covered the complete project lifecycle from supply through to operational handover:" ], "bullets": [ "Installation & Commissioning: SANPAR engineers supervised mechanical installation, cooling water connections, refrigerant charging, and electrical integration of all ten units. System-level commissioning included verification of outlet dew point, refrigerant operating pressures, and cooling water flow rates for each dryer, followed by full-load performance confirmation with the plant compressors running.", "Parallel bank configuration: Interconnection of the ten-dryer bank — including inlet manifolding, isolation valving, and outlet header arrangement — was engineered to permit individual dryer isolation under live system conditions without impacting downstream instrument air pressure or quality.", "Operator Training: SAIL operating personnel were trained on dryer start-up and shutdown procedures, control and alarm interpretation, cooling water management, and first-level maintenance routines including filter change intervals and condensate drain inspection.", "After-Sales Support: SANPAR committed to responsive post-commissioning service, including spare parts availability and technical support — essential for a critical utility system in a continuous-process steel plant." ] }, { "heading": "Results Achieved", "paragraphs": [ "The centralised XEROS dryer bank delivered measurable operational and financial benefits across IISCO Steel Plant's modernised production units:" ], "bullets": [ "Instrument air quality: Continuous supply of compressed air at a consistent pressure dew point, well within the requirements of pneumatic instrumentation standards, protecting control valves, positioners, and interlocks across the Coke Oven Battery, Sinter Plant, Power & Blowing Station, Wire Rod Mill, and plant-wide automation systems.", "Plant uptime protection: Elimination of moisture-related instrument failures and pneumatic line blockages reduced unplanned maintenance interventions and associated production disruptions directly supporting the plant's high-capacity output targets under the modernisation programme.", "Reduced power consumption: Water-cooled condenser selection delivered measurably lower refrigeration power draw compared to air-cooled alternatives of equivalent capacity, a meaningful saving at the scale of 40,000 CFM of installed drying capacity operating continuously.", "Maintenance flexibility: Parallel dryer bank configuration enabled planned maintenance on individual units during plant operation, avoiding the production risk of a single-point-of-failure drying system.", "Scale proven: The IISCO project demonstrated SANPAR's capability to engineer, manufacture, and commission large-capacity dryer banks of 10 matched units totalling 40,000 CFM to a project schedule within a major capital modernisation programme." ], "trailingParagraphs": [ "The following performance indicators reflect the operational impact of the XEROS dryer installation at IISCO Steel Plant. Figures are derived from design parameters, comparative industry benchmarks, and the 10+ year operational record of the installation." ], "metrics": [ { "metric": "Instrument Air System Uptime", "performance": ">99% dryer bank availability (measured over 12-month period)", "meaning": "10-unit parallel bank design means no single point of failure. Individual units can be isolated for scheduled maintenance without interrupting instrument air supply to any production unit." }, { "metric": "Auxiliary Power Saving vs. Air-Cooled Alternative", "performance": "15–20%", "meaning": "Water-cooled condensers eliminate the fan motor load and capacity derating of air-cooled units in high-ambient steel plant environments. At 40,000 CFM continuous, this translates to a meaningful reduction on the plant's auxiliary power budget." }, { "metric": "Pressure Dew Point (PDP) Consistency — Year-Round", "performance": "+3°C PDP, ±2°C seasonal variation across summer/winter cycles", "meaning": "Water-cooled design holds rated PDP regardless of ambient temperature. Air-cooled dryers can derate by 20–30% on hot summer days, risking instrument air quality failure precisely when plant loads are highest." }, { "metric": "Reduction in Moisture-Related Instrument Failures & Unplanned Stoppages", "performance": "No moisture-attributed instrument failures reported in the first 3 years post-commissioning", "meaning": "Moisture in instrument air causes control valve stiction, solenoid failure, and pneumatic line blockages, each a potential production excursion. Dry air at spec eliminates this entire failure class across Coke Oven, Sinter Plant, and Wire Rod Mill automation." }, { "metric": "Cost per CFM of Treated Instrument Air (Utility Operating Cost)", "performance": "₹0.08–0.12 / CFM / hr (est.)", "meaning": "Water-cooled refrigerated drying is among the lowest-cost treatment technologies at this flow scale. Usually benchmarked against the cost of a single unplanned stoppage in the Wire Rod Mill or Sinter Plant typically orders of magnitude higher." }, { "metric": "Compressed Air Quality at Machine Tool & Pneumatic Actuator Inlets", "performance": "ISO 8573-1 Class 4 or better (moisture)", "meaning": "Refrigerated dryers at +3°C PDP deliver air well within the requirement for pneumatic actuators, positioners, and solenoid valves on machine tool lines and process control loops. Eliminates condensate-induced seal wear and stiction that shortens actuator MTBF." }, { "metric": "Overall Plant Operation Efficiency Contribution (OEE Impact)", "performance": "1–2% OEE improvement (instrument air availability component)", "meaning": "Instrument air failure cascades across process control, safety interlocks, and pneumatic drives simultaneously. Reliable centralised drying protects Availability and Quality Rate across all five major production units, the two OEE levers most sensitive to compressed air quality." }, { "metric": "Maintenance Cost Avoidance on Pneumatic Instrumentation", "performance": "Estimated 2x extension in control valve diaphragm replacement intervals based on maintenance logs", "meaning": "Moisture is the primary cause of diaphragm degradation, seat corrosion, and seal failure in control valves and positioners. Consistent dry air doubles to quadruples typical component replacement intervals reducing both spares spend and maintenance labour frequency across a plant of this scale." } ], "footnote": "Note: Performance figures marked \"est.\" are based on design parameters and industry benchmarks for water-cooled refrigerated dryers at comparable flow rates. Uptime and failure-rate metrics reflect the operational record reported by SAIL's engineering team over the installation's service life. OEE and maintenance cost figures are indicative ranges derived from ISA and industry data for instrument air system availability in integrated steel plant environments." }, { "heading": "Outcome", "paragraphs": [ "The SANPAR XEROS dryer installation at IISCO Steel Plant, Burnpur, represents one of the largest centralised instrument air drying systems supplied by an Indian manufacturer to the domestic steel sector. Commissioned as part of SAIL's landmark IISCO modernisation project in 2010, the system has underpinned reliable plant automation across the full range of production units for over a decade.", "For plant engineers and utility managers in the integrated steel sector, the project establishes a clear reference for the use of water-cooled, large-capacity refrigerated dryers as the preferred configuration in high-ambient, high-load instrument air applications delivering both the dew-point consistency and the power efficiency that continuous-process operations demand." ] } ] } } ] }