High-Purity Pressure Swing Adsorption (PSA) Nitrogen Compressor

A high-purity pressure swing adsorption (PSA) nitrogen compressor is not a single piece of equipment; rather, it refers to an air compressor specifically designed and optimized for PSA nitrogen genera

  • Working Pressure:6[ bar ]87[ psig ]
  • Free Air Delivery:12.4~88.5[ cfm ]0.35~2.5[ m3/min ]
  • Working Power:0.35~2.5[ kw ]0.2~0.25[ hp ]

Product Details

PSA nitrogen generator (1).jpg

Features and Advantages


1. High Air Source Quality Requirements

Oil-free or completely oil-free compressed air (typically Class T or Class 0 oil-free certification) must be provided 

to prevent oil contamination of the carbon molecular sieve, which could cause failure.

The purity of the compressed air directly determines the purity and quality of the resulting nitrogen.


2. Extremely High Operational Stability Requirements

PSA nitrogen production is a continuous, uninterrupted process, requiring the compressor to operate reliably 24/7 

with an extremely low failure rate.


3. Energy-Saving and Highly Efficient

Nitrogen production is a significant energy consumer. The accompanying compressor typically utilizes permanent 

magnet variable frequency technology, automatically adjusting production based on demand, significantly reducing 

energy consumption and serving as a core energy-saving component of the system.


4. Stable Pressure

The system provides compressed air at a stable pressure, ensuring that the PSA adsorption tower can switch between 

adsorption and desorption at the operating pressure (typically 7-10 bar), ensuring stable nitrogen production and purity.


5. Reduced Overall Costs

While the initial investment may be higher, its low failure rate, low maintenance costs (the oil-free design eliminates the 

cost of subsequent oil removal filters), and high energy efficiency provide users with lower overall lifecycle costs.

Technical Parameters

Nitrogen generator 
ModelRKZD-21/99.999  RKZD-50/99.99  RKZD-60/99.99RKZD-150/99.99  
Nitrogen flow21Nm3/h50Nm3/h60Nm3/h150Nm3/h
Nitrogen purity99.99999.99%99.99%99.99%
Nitrogen outlet pressure 6bar6bar(Adjustable)6bar(Adjustable)6bar(Adjustable)
Nitrogen dew point-40°C-40°C-40°C-40°C
Generator power 0.1kw0.15kw0.15kw0.15kw
Controll method PLC ControllerPLC ControllerPLC ControllerPLC Controller
Adsorption pressureequipped with 1 pcs of 0.3m30.7-0.8Mpa0.7-0.8Mpa0.7-0.8Mpa
Air buffer tankequipped with 1 pcs of 0.3m3equipped with 1 pcs of 0.6m³equipped with 1 pcs of 0.6m³equipped with 1 pcs of 1.5m³
Nitrogen buffer tankequipped with 1 pcsequipped with 1 pcs of 0.6m³equipped with 1 pcs of 0.6m³equipped with 1 pcs of 1.5m³
Regeneration methodDouble towers alternate adsorption and continuous operationDouble towers alternate adsorption and continuous operationDouble towers alternate adsorption and continuous operationDouble towers alternate adsorption and continuous operation
Control SystemFully automatic controlFully automatic controlFully automatic controlFully automatic control
Control air pathPU seriesPU seriesPU seriesPU series
Equipment accessoriesPressure gauge, flow meter, purity molecular meter, pressure regulating valvePressure gauge, flow meter, purity molecular meter, pressure regulating valvePressure gauge, flow meter, purity molecular meter, pressure regulating valvePressure gauge, flow meter, purity molecular meter, pressure regulating valve
Materialcarbon steelcarbon steelcarbon steelcarbon steel
Dimension1700*1600*2000mm1900*1800*2350mm2000*1900*2300mm5200*1600*2900mm
Weight1200kg1400kg1800kg2500kg
Required compressed air



Inlet air flow≥2.75m³/min4.9m3/min5.8m3/min14.5m3/min
Inlet air pressure ≥8 bar≥8 bar≥8 bar≥8 bar
Inlet air oil content0.01ppm0.01ppm0.01ppm0.01ppm