{"id":595,"date":"2026-07-21T05:46:45","date_gmt":"2026-07-21T05:46:45","guid":{"rendered":"https:\/\/n2-compressor.com\/?post_type=product&p=595"},"modified":"2026-07-21T05:46:45","modified_gmt":"2026-07-21T05:46:45","slug":"4wm-100-30-nitrogen-compressor","status":"publish","type":"product","link":"https:\/\/n2-compressor.com\/nl\/product\/4wm-100-30-nitrogen-compressor\/","title":{"rendered":"4WM-100\/30 Nitrogen Compressor | 100 m\u00b3\/min Oil-Free N2 Booster for 3.00 MPa Ultra-High-Pressure Industrial Process"},"content":{"rendered":"
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4WM-100\/30 Nitrogen Compressor \u2013 Ultra-High-Capacity Oil-Free N2 Booster for 3.00 MPa Industrial Process<\/h1>\n

Engineered to deliver 100 m\u00b3\/min at 3.00 MPa discharge pressure, the 4WM-100\/30 is a four-stage, four-row oil-free piston nitrogen compressor purpose-built for ultra-large-scale nitrogen injection, high-pressure pipeline transmission, and demanding petrochemical process applications. Zero oil contamination, massive throughput, and optimized for continuous-duty operation at extreme pressure.<\/p>\n

Vraag een offerte aan<\/a>
\nView N2 Compressor Series<\/a><\/div>\n

\"4WM-100\/30<\/p>\n<\/div>\n

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Productoverzicht<\/h2>\n

The 4WM-100\/30 nitrogen compressor<\/strong> represents the pinnacle of our oil-free piston compressor engineering, occupying the ultra-large-capacity segment of the industrial nitrogen compression market. With an extraordinary 100 m\u00b3\/min capacity<\/strong> coupled with a formidable 3.00 MPa discharge pressure<\/strong>, this unit is engineered for the most demanding nitrogen applications in the global industrial gas industry.<\/p>\n

What distinguishes the 4WM-100\/30 from all conventional alternatives is its fully oil-free compression pathway<\/strong> combined with four-stage thermodynamic optimization. The piston rings and rider bands are fabricated from advanced self-lubricating PTFE composite materials that operate without any hydrocarbon lubricants, ensuring the nitrogen stream remains completely uncontaminated even at the extreme pressures and temperatures associated with 3.00 MPa discharge. This intrinsic oil-free characteristic is indispensable for ultra-high-purity nitrogen applications in semiconductor fabrication, pharmaceutical synthesis, and food-grade gas production where even sub-ppm oil contamination would be catastrophic.<\/p>\n

The compressor architecture employs a four-stage, four-row (\u56db\u5217\u56db\u7ea7)<\/strong> configuration\u2014the most complex and thermodynamically advanced arrangement in our product range. This multi-stage design divides the massive pressure ratio required to achieve 3.00 MPa across four compression cylinders, with inter-stage cooling after each stage. This staged approach is absolutely essential for managing the extreme thermal loads and preserving the integrity of the PTFE sealing elements, which would thermally degrade if subjected to the discharge temperatures of a single-stage or even two-stage compression process at this pressure level. The robust cast-iron frame and massive forged steel crankshaft are engineered for a minimum service life of 150,000 hours<\/strong> under rigorous maintenance protocols.<\/p>\n

\"4WM-100\/30<\/p>\n<\/div>\n

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Technical Specifications \u2013 4WM-100\/30<\/h2>\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Parameter<\/th>\nValue<\/th>\nUnit<\/th>\n<\/tr>\n<\/thead>\n
Model<\/td>\n4WM-100\/30<\/td>\n\u2013<\/td>\n<\/tr>\n
Patroon<\/td>\nFour-stage, Four-row (\u56db\u5217\u56db\u7ea7)<\/td>\n\u2013<\/td>\n<\/tr>\n
Capaciteit<\/td>\n100<\/td>\nm\u00b3\/min<\/td>\n<\/tr>\n
Afvoerdruk<\/td>\n3.00<\/td>\nMPa<\/td>\n<\/tr>\n
Compressor Size (L \u00d7 W \u00d7 H)<\/td>\n6800 \u00d7 4000 \u00d7 3200<\/td>\nmm<\/td>\n<\/tr>\n
Gewicht<\/td>\n36.50<\/td>\nt<\/td>\n<\/tr>\n
Stroom<\/td>\n1200<\/td>\nkW<\/td>\n<\/tr>\n
Spanning<\/td>\n6k of 10k<\/td>\nV<\/td>\n<\/tr>\n
Gasmedium<\/td>\nNitrogen (N\u2082)<\/td>\n\u2013<\/td>\n<\/tr>\n
Lubrication<\/td>\nOlievrij<\/td>\n\u2013<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

* All specifications are rated at standard reference conditions (ISO 1217, Annex C). Actual performance may vary based on site altitude, ambient temperature, and inlet conditions.<\/em><\/p>\n<\/div>\n

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Key Features & Engineering Advantages<\/h2>\n

1. Four-Stage Thermodynamic Optimization for Extreme Pressure<\/h3>\n

The four-stage compression architecture<\/strong> of the 4WM-100\/30 is the only thermodynamically viable approach for achieving 3.00 MPa discharge pressure while maintaining acceptable discharge temperatures and preserving PTFE sealing integrity. Each stage operates at a pressure ratio of approximately 2.5:1 to 3:1, with dedicated shell-and-tube intercoolers between every stage removing the heat of compression. This staged approach limits the discharge temperature of each stage to below 145\u00b0C, well within the safe operating envelope of the PTFE composite materials. Without four-stage compression, the discharge temperature would exceed 250\u00b0C, causing immediate thermal degradation of the sealing elements and catastrophic compressor failure. The four-row arrangement provides exceptional force balance, with opposed cylinders canceling inertial forces and minimizing vibration transmission to the foundation.<\/p>\n

2. Ultra-High-Temperature PTFE Sealing Technology<\/h3>\n

The 4WM-100\/30 employs a proprietary self-lubricating piston ring and rider band assembly<\/strong> manufactured from next-generation PTFE composites specifically developed for ultra-high-pressure service. These rings are reinforced with high-temperature glass fiber, bronze particulates, and molybdenum disulfide to achieve a coefficient of friction below 0.05 without any external hydrocarbon lubrication. The material formulation is rated for continuous operation at temperatures up to 200\u00b0C\u2014higher than standard PTFE composites\u2014to provide a safety margin against the elevated thermal loads of four-stage compression. At 3.00 MPa discharge pressure, the partial pressure of any oil vapor would be extraordinarily high, making oil contamination essentially impossible to remove downstream. The 4WM-100\/30’s native oil-free design eliminates this risk entirely, delivering ISO 8573-1 Class 0 certification<\/strong> without any downstream purification equipment.<\/p>\n

3. Massive Heavy-Duty Frame for Industrial-Scale Loads<\/h3>\n

The main frame is cast from GG30 gray cast iron<\/strong> (higher grade than standard GG25) with reinforced wall sections up to 80 mm thick and integral cooling water passages machined directly into the casting. The four-row opposed-cylinder arrangement<\/strong> provides near-perfect first and second-order force cancellation, reducing the net unbalanced forces transmitted to the foundation to less than 5% of the peak cylinder gas forces. This exceptional mechanical balance is essential for a machine of this size and power, where unbalanced forces would otherwise require a foundation mass exceeding 100 tonnes. The dynamically balanced forged steel crankshaft (42CrMo4, Q&T) is supported by five main bearing journals with hydrodynamic oil film bearings rated for the full 150,000-hour design life.<\/p>\n

4. High-Voltage Motor Drive for Maximum Efficiency<\/h3>\n

The 4WM-100\/30 is driven by a 1200 kW medium-voltage induction motor<\/strong> available in either 6kV or 10kV configurations, conforming to IEC 60034-1 efficiency class IE3. At this power level, medium-voltage drive is not merely preferred but essential\u2014a 380V motor would require approximately 2,000A of current, necessitating impractical cable sizes and massive switchgear. The medium-voltage configuration integrates directly into industrial high-voltage distribution networks, minimizing electrical losses and reducing infrastructure costs. The motor is equipped with a liquid cooling jacket for tropical climate operation and features Class F insulation with Class B temperature rise for extended service life.<\/p>\n

\"4WM-100\/30<\/p>\n<\/div>\n

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Application Scenarios<\/h2>\n

Ultra-Large-Scale Nitrogen Injection & Pipeline Transmission<\/h3>\n

In mega-scale industrial gas facilities and national nitrogen pipeline networks, the 4WM-100\/30 serves as the primary high-pressure nitrogen booster<\/strong> for long-distance transmission and large-volume injection applications. Its 100 m\u00b3\/min capacity is equivalent to the nitrogen output of a 5,000+ Nm\u00b3\/h cryogenic ASU, while the 3.00 MPa discharge pressure provides sufficient head for pipeline transmission over distances exceeding 50 km. The oil-free design is critical in transmission applications because any oil contamination would propagate through the entire pipeline network, affecting all downstream consumers including food processors, pharmaceutical manufacturers, and semiconductor fabs.<\/p>\n

\"4WM-100\/30<\/p>\n

Coal Chemical & Syngas Nitrogen Purge<\/h3>\n

In coal chemical plants, gasification facilities, and syngas production complexes, the 4WM-100\/30 nitrogen compressor<\/a> provides massive volumes of high-pressure nitrogen for gasifier inerting, syngas pipeline purging, and emergency isolation<\/strong>. The 3.00 MPa discharge pressure is sufficient to overcome the operating pressure of entrained-flow gasifiers (typically 2.5\u20134.0 MPa) and maintain positive inert gas flow during startup, shutdown, and upset conditions. The 100 m\u00b3\/min capacity can simultaneously serve multiple gasification trains, reducing the number of compressor units required and simplifying plant layout. The oil-free design prevents oil contamination of syngas, which would poison downstream catalysts in methanol synthesis, Fischer-Tropsch, and ammonia production units.<\/p>\n

Enhanced Oil Recovery (EOR) Nitrogen Injection<\/h3>\n

In oilfield nitrogen injection projects for enhanced oil recovery, the 4WM-100\/30 compresses nitrogen to 3.00 MPa for injection into depleted oil reservoirs to maintain reservoir pressure and improve sweep efficiency. The massive 100 m\u00b3\/min capacity can serve multiple injection wells simultaneously, while the high discharge pressure overcomes the hydrostatic head of deep reservoirs. The oil-free design is mandatory for EOR applications because oil contamination would damage the reservoir formation, reduce permeability, and contaminate the produced oil. The continuous-duty rating ensures uninterrupted injection campaigns that may last for years.<\/p>\n

\"4WM-100\/30<\/p>\n

Large-Scale Semiconductor Fabrication Nitrogen Supply<\/h3>\n

Mega-fabs producing 300mm and 450mm semiconductor wafers require enormous volumes of ultra-high-purity nitrogen for process chamber purge, wafer transport atmosphere, chemical vapor deposition (CVD) carrier gas, and cryogenic cooling<\/strong>. The 4WM-100\/30’s 100 m\u00b3\/min capacity can supply the nitrogen needs of an entire semiconductor fabrication complex, while the 3.00 MPa discharge pressure is adequate for driving nitrogen through the extensive distribution manifolds and point-of-use pressure reduction systems. The oil-free certification is non-negotiable in semiconductor applications where even femtogram-level oil contamination can cause fatal defects in nanometer-scale transistors.<\/p>\n<\/div>\n

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Material & Construction<\/h2>\n

The 4WM-100\/30 is constructed from premium materials selected for ultra-high-pressure nitrogen compatibility, extreme thermal resistance, and industrial-scale structural integrity:<\/p>\n

\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Component<\/th>\nMaterial<\/th>\nSpecificatie<\/th>\n<\/tr>\n<\/thead>\n
Main Frame<\/td>\nGray Cast Iron<\/td>\nGG30 \/ HT300, 80mm wall thickness, integral cooling<\/td>\n<\/tr>\n
Crankshaft<\/td>\nForged Alloy Steel<\/td>\n42CrMo4, Q&T, 5 main journals, ISO 1940 G1.0 balanced<\/td>\n<\/tr>\n
Cylinder Blocks (Stage 1\u20134)<\/td>\nGray Cast Iron<\/td>\nGG30, progressive wall thickening from LP to HP<\/td>\n<\/tr>\n
Piston Rings<\/td>\nPTFE-Glass-Bronze-MoS\u2082 Composite<\/td>\nUltra-high-temp rated, self-lubricating, 200\u00b0C max<\/td>\n<\/tr>\n
Rider Bands<\/td>\nPTFE Composite<\/td>\nPiston guidance, anti-scuffing, wear rate <0.03 mm\/1000h<\/td>\n<\/tr>\n
Valve Plates<\/td>\nRoestvrij staal<\/td>\nSS316L, high-pressure concentric ring, fatigue-rated<\/td>\n<\/tr>\n
Intercoolers (\u00d73)<\/td>\nCarbon Steel Shell \/ SS316L Tubes<\/td>\nASME VIII Div.1, 1.5\u00d7 hydrotest, 30 min hold<\/td>\n<\/tr>\n
Aftercooler<\/td>\nCarbon Steel Shell \/ SS316L Tubes<\/td>\nHigh-pressure finned tube, 32\u00b0C cooling water<\/td>\n<\/tr>\n
High-Pressure Piping<\/td>\nSeamless Stainless Steel<\/td>\nSS316L, ANSI Class 900 flanges<\/td>\n<\/tr>\n
Base Frame<\/td>\nWelded Structural Steel<\/td>\nHeavy-duty fabrication, vibration-damped mounting<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

All pressure-bearing components are designed and fabricated in strict accordance with ASME BPVC Section VIII Division 1<\/strong> or Chinese GB 150 standards. Every weld joint undergoes 100% radiographic inspection (RT) per ASME Section V, Article 2, and each completed pressure vessel is subjected to a hydrostatic pressure test at 1.5 times the maximum allowable working pressure (MAWP) for a minimum hold period of 30 minutes. High-pressure piping systems are fabricated from seamless SS316L with ANSI Class 900 flanged connections to ensure leak-tight integrity at 3.00 MPa operating pressure.<\/p>\n

\"4WM-100\/30<\/p>\n<\/div>\n

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Installation & Maintenance Guidelines<\/h2>\n

Foundation & Structural Requirements<\/h3>\n

The 4WM-100\/30 has a dry weight of 36.50 tonnes and a center of gravity approximately 1,200 mm above the baseplate. Despite the four-row opposed-cylinder design providing excellent force balance, the sheer mass and power of the machine require a reinforced concrete inertia block of 60\u201380 tonnes<\/strong>. The block must be mounted on heavy-duty spring isolators (natural frequency 4\u20136 Hz) to prevent vibration transmission to adjacent structures and sensitive instrumentation. The foundation must be designed by a qualified structural engineer to support the static weight plus dynamic forces during startup and emergency shutdown. Minimum clearance requirements: 2.0 m on all sides for maintenance access, 3.0 m overhead for crane access during major overhauls, and a dedicated heavy-lift bay for rotor removal.<\/p>\n

Cooling Water System Design<\/h3>\n

Cooling water demand is approximately 120 m\u00b3\/h<\/strong> at an inlet temperature not exceeding 32\u00b0C. The water distribution circuit supplies the cylinder jackets, three intercoolers, and aftercooler in parallel branches with individual flow control valves. Given the four-stage compression, cooling water management is critical\u2014any reduction in intercooler performance will cause a cascade of temperature increases through subsequent stages, potentially exceeding the safe operating limit of the PTFE sealing elements. Water quality specifications: pH 6.5\u20138.5, total dissolved solids < 400 mg\/L, chloride content < 30 mg\/L (to prevent SS316L corrosion), suspended solids < 20 mg\/L, and total hardness < 250 mg\/L as CaCO\u2083. A dedicated closed-loop cooling tower with full-stream filtration and automated chemical treatment is mandatory for reliable operation.<\/p>\n

Preventive Maintenance Schedule<\/h3>\n
\n\n\n\n\n\n\n\n\n\n\n
Interval<\/th>\nService Item<\/th>\nAction Required<\/th>\n<\/tr>\n<\/thead>\n
Daily<\/td>\nOperational Inspection<\/td>\nCheck vibration, bearing temperatures, cooling water flows, discharge pressures (all stages), temperatures<\/td>\n<\/tr>\n
250 hours<\/td>\nValve Plate Inspection (Stage 4)<\/td>\nInspect high-pressure stage valves for thermal fatigue, carbon deposits, spring degradation<\/td>\n<\/tr>\n
500 hours<\/td>\nValve Plate Inspection (Stages 1\u20133)<\/td>\nInspect lower-pressure stage valves for wear, deposits, and sealing integrity<\/td>\n<\/tr>\n
1,000 hours<\/td>\nPiston Ring Wear Assessment<\/td>\nMeasure ring groove clearance on all stages; replace if clearance exceeds 0.20 mm<\/td>\n<\/tr>\n
3,000 hours<\/td>\nIntermediate Overhaul<\/td>\nReplace all piston rings, rider bands, and valve plate assemblies across all four stages<\/td>\n<\/tr>\n
6,000 hours<\/td>\nMajor Overhaul<\/td>\nInspect crankshaft journals, measure all bearing clearances, replace main bearings if >0.06 mm<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

The oil-free design of the 4WM-100\/30 eliminates the entire category of oil-related maintenance tasks that burden lubricated compressors. There are no oil changes (saving 400\u2013600 liters\/year), no oil analysis programs, no filter element replacements, no separator cartridge changes, and no waste oil disposal. The primary consumable wear items are the PTFE piston rings and rider bands<\/strong>, which typically achieve 3,000\u20135,000 hours of service life under clean nitrogen conditions. Given the four-stage architecture, maintenance planning must account for stage-specific wear patterns, with the high-pressure stage (Stage 4) typically requiring more frequent attention than the low-pressure stages.<\/p>\n

\"4WM-100\/30<\/p>\n<\/div>\n

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Compliance & Safety Certifications<\/h2>\n

The 4WM-100\/30 nitrogen compressor is designed, manufactured, and tested to meet or exceed the following international standards and regulatory frameworks:<\/p>\n

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Pressure Equipment<\/strong>
\nASME BPVC Section VIII Div.1, GB 150-2011, PED 2014\/68\/EU Module H (Full QA)<\/span><\/div>\n
Electrical & Machine Safety<\/strong>
\nIEC 60034-1 (IE3 efficiency), IEC 60204-1, ISO 12100 machinery safety<\/span><\/div>\n
Oil-Free Certification<\/strong>
\nISO 8573-1 Class 0 (Oil Content), independently tested by T\u00dcV Rheinland<\/span><\/div>\n
Quality & Environmental<\/strong>
\nISO 9001:2015, ISO 14001:2015, ISO 45001:2018 (Occupational Health & Safety)<\/span><\/div>\n<\/div>\n
\u26a0\ufe0f Critical Safety Advisory \u2013 Ultra-High-Pressure Operation<\/strong><\/p>\n

Nitrogen is classified as a simple asphyxiant gas. At 3.00 MPa discharge pressure, the stored energy in the compressed gas and discharge piping is extreme\u2014a rupture could release gas at velocities exceeding the speed of sound, creating an immediate oxygen-deficient zone extending tens of meters. All 4WM-100\/30 installations must incorporate: (1) Continuous oxygen deficiency monitoring throughout the compressor building and downwind areas; (2) Pressure relief valves on every stage discharge rated at 110% of MAWP with rupture discs as secondary protection; (3) Emergency depressurization systems capable of safely venting the entire machine volume within 60 seconds; (4) Blast-resistant building construction or outdoor installation with adequate exclusion zones; (5) Personnel training in ultra-high-pressure gas safety protocols. Ventilation must maintain ambient oxygen above 19.5% per OSHA 29 CFR 1910.146. Emergency shutdown interlocks activate at 19.5% O\u2082 (alarm) and trigger hard isolation at 18.0% O\u2082.<\/p>\n<\/div>\n

\"4WM-100\/30<\/p>\n<\/div>\n

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Performance & Efficiency Analysis<\/h2>\n

The 4WM-100\/30 achieves a specific power consumption of approximately 12.00 kW per m\u00b3\/min<\/strong> of nitrogen delivered at 3.00 MPa discharge pressure. This specific power figure reflects the thermodynamic reality of ultra-high-pressure compression through four stages, where the cumulative work of compression is substantial. However, within the ultra-high-pressure oil-free compressor segment (discharge pressure >2.50 MPa, capacity >50 m\u00b3\/min), this efficiency is exceptional. For comparison, oil-lubricated reciprocating compressors in similar applications typically consume 13.0\u201315.0 kW\/m\u00b3\/min, while attempting to achieve this pressure with screw compressors would require multi-stage arrangements with inter-stage cooling that are mechanically complex and less efficient.<\/p>\n

Over an 8,000-hour annual operating schedule, the 4WM-100\/30’s efficiency advantage versus less efficient alternatives yields approximately 800,000\u20131,600,000 kWh of annual energy savings<\/strong>. At $0.08\/kWh, this represents $64,000\u2013$128,000 in direct electricity cost reduction per year. However, the primary economic justification for the 4WM-100\/30 is typically the combination of massive capacity, ultra-high pressure, and native oil-free operation<\/strong> that no alternative technology can match. The total cost of ownership for ultra-high-pressure nitrogen compression<\/a> is dominated by energy and maintenance, both of which are optimized by the four-stage oil-free design.<\/p>\n

The elimination of oil-related consumables generates particularly significant savings at this scale. A lubricated compressor of 100 m\u00b3\/min capacity would consume 1,000\u20132,000 liters of lubricating oil annually, plus hundreds of filter elements, separator cartridges, and waste oil disposal costs totaling $25,000\u2013$40,000\/year. The 4WM-100\/30’s oil-free design eliminates these expenses entirely while ensuring that no oil contamination enters the nitrogen product stream\u2014a value that is impossible to quantify but critical for semiconductor, pharmaceutical, and food-grade applications.<\/p>\n<\/div>\n

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Customization & OEM Capabilities<\/h2>\n

We offer comprehensive customization options to adapt the 4WM-100\/30 to specific mega-project requirements:<\/p>\n