High Pressure Cylinder Bottling Nitrogen Compressor | 100% Oil-Free | 12.00 – 25.00 MPa

Discover premium high-pressure nitrogen compressors. Engineered for 12.00-25.00 MPa cylinder filling and process boosting. Featuring 100% oil-free safety, multi-stage cooling, and Exd certification.

High Pressure Cylinder Bottling Nitrogen Compressor

12.00 - 25.00 MPa Cylinder Bottling | 100% Oil-Free Safety | Multi-Stage Compression

In industrial nitrogen distribution hubs, large-scale PSA (Pressure Swing Adsorption) integration, and critical gas bottling networks, the process of compressing pure nitrogen to extreme pressures requires absolute mechanical integrity. While nitrogen is inert, contaminating this highly refined gas with trace lubricating oil from standard compressors will result in ruined end-products, especially in laser cutting and food packaging. Our High-Pressure Nitrogen Compressors are explicitly engineered to neutralize these threats. By utilizing a 100% oil-free, hermetically sealed architecture and aggressive multi-stage thermal management, these heavy-duty reciprocating machines safely elevate nitrogen from low-pressure generators directly up to 25.00 MPa for high-density cylinder filling and advanced chemical processes.

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Volumetric Capacity Range
2.1 - 86.0 m³/min (Continuous Bottling Output)
Discharge Pressure
12.00 - 25.00 MPa (120 - 250 Bar Target)
Kinematic Architecture
Multi-Stage Intercooled Reciprocating Design

Product Overview & Chemical Purity Directives

Attempting to push pure nitrogen to 25.00 MPa in a single or dual-stage compressor is a severe thermodynamic error. The adiabatic heat generated by such a massive pressure ratio will quickly compromise internal components and lead to catastrophic failure. Furthermore, any standard lubricating oil entering the high-pressure nitrogen stream completely ruins the gas purity required for high-tech applications.

Our dedicated High-Pressure Nitrogen Compressors resolve these issues through an over-engineered, positive-displacement platform. By distributing the compression work across multiple distinct stages, the system keeps the thermal load completely manageable. Combined with specialized metallurgy and a hermetically separated 100% oil-free compression chamber, these machines serve as the ultimate, fail-safe bridge between your bulk nitrogen supply and your high-pressure cylinder storage arrays.

The Core Value Triangle


  • Absolute Purity Preservation: Through strict adherence to an extended distance piece architecture, any crankcase oil migrating up the piston rod is physically intercepted and wiped away long before reaching the nitrogen cylinder. This guarantees 0% hydrocarbon carryover.

  • Multi-Stage Thermal Stability: Achieving 25.00 MPa requires extensive mechanical work. Our multi-stage configurations divide this compression ratio, paired with highly efficient tubular inter-stage coolers, keeping gas temperatures remarkably low and safe throughout the cycle.

  • Heavy-Duty Industrial Resilience: Built upon a rugged, heavy-mass cast frame with dynamically balanced crankshafts, these compressors operate with minimal vibration, extending the mean time between failures (MTBF) and ensuring relentless 24/7 cylinder filling plant operations.

High Pressure Compressor Manufacturing Factory

High-Pressure Nitrogen Bottling Models & Specs

The table below provides the precise technical parameters for our dedicated high-pressure nitrogen compressors. Tailored for continuous bottling and high-pressure chemical loops, these machines reliably reach pressures up to 25.00 MPa (250 Bar).

Model NamePattern & StagesCapacity (m³/min) & IntakeDischarge Pressure (MPa)Dimensions L×W×H (mm)Weight (t)Power (kw)Voltage (V)
LW-2.1/8-120Two-row two-stage2.1 (Intake 0.80MPa)12.003200 × 1685 × 24306.50160380
DW-5/0.8-120Two-row four-stage5.0 (Intake 0.08MPa)12.005000 × 4500 × 22006.50132380
DW-86/4-12.5Two-row one-stage86.0 (Intake 0.40MPa)1.257000 × 4200 × 310025.0014006K or 10K
DW-92/5-13Two-row one-stage92.0 (Intake 0.50MPa)1.307000 × 4200 × 310025.0015006K or 10K

* Custom Engineering Notice: Single machine configurations with motor powers ranging from 11 kW to an immense 2000 kW can be engineered upon request to perfectly match your site's specific high-pressure nitrogen process conditions.

Deep Dive: High-Pressure Nitrogen Engineering

Pushing nitrogen to 25.00 MPa requires conquering severe thermodynamic penalties. At these pressures, the adiabatic heat of compression can cause entrained lubrication oils to coke and degrade. Here is how our engineering overcomes the physics of high-pressure nitrogen.

Staggered Multi-Stage Thermodynamics

Attempting to reach 12.0 - 25.0 MPa in a single stroke is thermodynamically unviable. Our compressors utilize multi-stage geometries to incrementally step up the pressure. This allows our massive inter-stage shell-and-tube heat exchangers to thoroughly strip away the heat of compression between each cylinder, keeping the gas well below the critical temperatures that degrade valves and synthetic seals.

Advanced PTFE Composite Sealing

Operating at 250 Bar without liquid lubrication creates immense friction. The compressor employs proprietary filled-PTFE (Polytetrafluoroethylene) composites for all piston rings, rider bands, and packing glands. These rings provide extraordinary dry-lubrication properties against our precision CNC-honed cylinder walls, slashing heat generation while maintaining a perfect gas seal.

Symmetrical Kinematics

Moving massive volumes of gas against extreme backpressures requires pistons that generate staggering inertial thrust. If arranged in a standard vertical block, the vibration would physically tear the machine from its concrete foundation. By arranging the cylinders into opposing rows, the reciprocating masses perfectly cancel each other out, resulting in a machine that operates with whisper-smooth stability.

Precision Assembly of Large Capacity Cylinders

Process Applications & Case Studies

The sheer displacement capability of these High-Pressure Compressors positions them as the undisputed engines for the world's most aggressive nitrogen utilization sectors.

Industrial Cylinder Filling Stations

Designed for commercial gas distributors, our machines can continuously fill arrays of 40L standard cylinders to extreme pressures (15.00 - 25.00 MPa). The multi-stage efficiency drastically reduces power consumption per cubic meter bottled, making commercial nitrogen distribution highly profitable.

Laser Cutting Assist Gas

High-power fiber lasers require high-pressure, ultra-pure nitrogen to blow away molten metal and prevent oxidation on the cut edge. Our massive compressors fill the high-pressure buffer tanks or cylinder manifolds, guaranteeing that zero oil mist reaches the delicate, expensive laser focus lenses.

Chemical Synthesis & Purging

In complex fine chemical and petrochemical synthesis, nitrogen is often utilized as a safe purging agent under substantial pressure. The high stability and precise flow control of our multi-stage models make them perfect for safely injecting pure nitrogen directly into high-pressure chemical reactors.

Featured Case: Large-Scale Laser Fabrication Hub

  • Deployed Equipment: Two arrays of high-pressure boosters.
  • The Challenge: A sheet metal fabrication plant running multiple 20kW fiber lasers was purchasing liquid nitrogen (LN2) at high costs. They invested in a PSA nitrogen generator but needed a robust way to boost the gas to extreme pressures to act as a buffer during peak cutting shifts without contaminating their laser optics.
  • The Resolution: The implementation of our high-pressure units allowed them to create a self-sustaining high-pressure N2 grid. The 100% oil-free compression completely protected their laser lenses. The ROI on the entire system was achieved in under 14 months due to eliminated LN2 delivery costs.
Client Case: Massive Nitrogen Processing Facility

Installation, Continuous O&M, and Safety Support

Igniting a machine that draws up to 1400 kW of power and moves massive volumes of pure nitrogen requires flawless site integration. Our lifecycle support ensures your compressor station remains safe, compliant, and continuously operational.

Logistics and Transport of Heavy Duty Compressors

Civil Engineering & Specialized Logistics

For machines weighing upwards of 25 tons, isolated reinforced concrete block foundations are mandatory. We provide comprehensive CAD dynamic loading blueprints well before delivery. Furthermore, the immense 1000+ kW motors require high-voltage (6kV/10kV) electrical switchgear integration, which our engineers assist in designing to protect your local power grid from startup amperage spikes.

Proactive Preventative Maintenance (PPM)

High-volume nitrogen reliability relies on strict, predictable maintenance:

  • Nitrogen Cleanliness Audits: During any maintenance, all tools and replacement parts must undergo strict degreasing to prevent contamination.
  • 8,000 Hours: Comprehensive scheduled overhaul of the PTFE piston rings, rider bands, and the critical distance-piece packing rings to sustain volumetric efficiency and ensure the zero-oil guarantee.

Competitor Comparison & Selection Guide

When scaling nitrogen compression past 20 m³/min to extreme pressures, plant engineers often debate between Reciprocating and Centrifugal architectures. Here is why our specialized reciprocating architecture offers the best Total Cost of Ownership (TCO) in the nitrogen sector.

Critical MetricOur Reciprocating Nitrogen CompressorsCentrifugal Compressors
Thermodynamic EfficiencyPositive displacement physics ensures minimal aerodynamic slip, offering superior kW-per-m³ efficiency.High aerodynamic clearances inherently allow gas slip, wasting substantial electrical energy at high pressures.
Turndown Ratio (Flexibility)Unmatched. via VFDs, the compressor can throttle down to 50% capacity seamlessly to match PSA yields.Suffer from dangerous "surging" if flow drops too low, requiring highly inefficient hot-gas bypass venting.
Tolerance to EnvironmentSlow RPM and heavy casting effortlessly resist ambient dust and electrical grid voltage dips.High-speed impellers (10,000+ RPM) are rapidly unbalanced and destroyed by trace airborne particulates.

Strategic Selection Pathway

  • Calculate Total Capacity: Sum the output of your upstream nitrogen generators.
  • Verify Discharge Targets: Supplying a standard high-pressure chemical loop requires up to 12.00 MPa. Supplying extreme cylinder filling requires up to 25.00 MPa. Match the compression stages accordingly.
  • Electrical Viability: A 1400 kW motor is massive. Ensure your facility's high-voltage substation (6kV or 10kV) has the breaker capacity to support the startup sequence.

Uncompromising Quality Standards

Manufacturing heavy-duty machinery capable of moving massive volumes of pure nitrogen per minute at extreme pressures leaves zero room for error. Our production facilities operate under elite, internationally recognized ISO quality management protocols. Every enormous crankshaft, pressure-bearing cylinder block, and stainless-steel manifold undergoes rigorous ultrasonic non-destructive testing, X-ray weld inspection, and massive dynamic load testing before leaving the factory floor. You are investing in certified, proven industrial durability.

Certificates and Industry Honors

Frequently Asked Questions (FAQ)

Why is a dynamic balancing layout necessary for high-pressure series?
To displace massive volumes of nitrogen to high pressures, the physical volume and weight of the pistons must be gargantuan. If arranged in a traditional vertical layout, the inertial forces would cause violent shaking that would physically tear the machine from its concrete foundation. By utilizing opposing rows, the massive mechanical forces perfectly cancel each other out, ensuring whisper-smooth baseload operation.
How do you prevent oil from the crankcase from entering the nitrogen stream?
The machine features an elongated Distance Piece. This physical gap between the oil-lubricated crankcase and the dry compression cylinder is longer than the actual stroke of the piston rod. Combined with multiple series of oil-wiper rings, it creates a geometric impossibility for oil to travel up the rod and reach the nitrogen, guaranteeing 100% oil-free safety.
Are the high voltage (6kV/10kV) drive motors included?
Yes, for machines requiring high power, standard low voltage creates severe electrical inefficiency and unmanageable cable heat. We package the series with premium high-voltage synchronous or asynchronous motors. We also work with your facility to integrate soft-starters or VFDs to manage the massive initial inrush currents upon startup.

Command Your Nitrogen Infrastructure

Do not gamble your mega-scale PSA plant or laser-cutting facility on inefficient centrifugal blowers. Partner with our engineering team to deploy our specialized, multi-stage nitrogen compressors built for extreme capacity and supreme safety.


Request a Comprehensive Engineering Proposal

 

Additional information

Editor

Miya

Product Quick Detail:

  • Standard and non-standard available
  • With high quality and competitive price
  • Prompt delivery
  • Packing as per customer’s demand.

We promise will offer the best price by the high quality in china! We also accept special order about the products. If you are interested in our products. Please do not hesitate to let us know.We are pleased to give you the detailed information.We promise that our products would be safety and were in high quality and reasonable price. If you are interested in our products, please contact us asap.We are sincerely looking for your cooperation.

Most of our products are exported to Europe or Americas, both standard and nonstandard products available. We can produce as per your drawing or sample. Material can be standard or as per your special request. If you choose us, you choose reliable.

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Materials Available

1. Stainless Steel: SS201, SS303, SS304, SS316, SS416, SS420
2. Steel:C45(K1045), C46(K1046),C20
3. Brass:C36000 ( C26800), C37700 ( HPb59), C38500( HPb58), C27200(CuZn37), C28000(CuZn40)
4. Bronze: C51000, C52100, C54400, etc
5. Iron: 1213, 12L14,1215
6. Aluminum: Al6061, Al6063
7.OEM according to your request
product materials available

Surface Treatment

Annealing, natural canonization, heat treatment, polishing, nickel plating, chrome plating, zinc plating,yellow passivization, gold passivization, satin, Black surface painted etc.

Processing Method

CNC machining, punch,turning, milling, drilling, grinding, broaching, welding and assembly
product finishing

QC & Certificate

Technicians self-check in production,final-check before package by professional Quality inspector
ISO9001:2008 , ISO14001:2001,ISO/TS 16949:2009

Package & Lead Time

Size: Drawings
Wooden Case/Container and pallet, or as per customized specifications.
15-25days samples. 30-45days offcial order
Port: Shanghai/Ningbo port
product packages

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