Two Stage H Series Screw Compressors

Working Power: 132~315 KW (180~400 HP)
Free Air Delivery: 18.5~63.2 m³/min (653~2231 cfm)
Working Pressure: 7/8/10/12.5 bar (101.5/116/145/181 psig)


  Less Power, similar capacity, good energy saving

Less power consumption, high energy saving.

  Isothermal Compression

  • AFE31 is area of isothermal compression
  • AC31 is area of standard compression
  • AB, BF, FD, 31 is area of two stage compression
  • Two stage compression saving area is BCDF comparison with standard compression
  • ★After first grade compression, the volume of compressed air become smaller, then the second compression could use smaller rotor, which reduce the compression leakage.
  • ★It reduces compression ratio, reduce the leakage.

   Heavy Duty Air Filter:

  • Double filter core, improved filtration, long service life, large filtration area, low suction resistance, improved air inlet efficiency.
  • Made for dusty environments like:  cement, textile, fiber, chemical industry etc.

   Oil/air tank(125HP-300HP)

  • Big capacity oil tank, reduced lubricating oil foaming. 
  • Tank cover fitted with lifting aid for simple air/oil separator replacement
  • Large air/ oil separator core, better separation, reduced pressure drop, higher system efficiency
  • Double oil separator core for 340HP and above, better oil separation.
  • Oil content< 3PPM over 4000 run hours.



① Premium Efficiency Drive Motor   

● Premium efficiency Totally Enclosed Fan Cooled (TEFC) IP54/IP55 Class (F)

● Long-term stable operation under harsh environments

② Innovative air end

​ ● New improved rotor profile for low pressure application

● High quality class bearings

● Designed for 20 years of reliable operation

③ Inlet filter

● Nano scale Heavy duty

● Filtration efficiency up to 99.9%

● Dust particles < 0.3 micron 

● Differential pressure indicator

● 2,000 hours service intervals

④ Cooling fan

● VSD control

● Compact

● Low noise level

● High capacity for optimized cooling

● Low power consumption

⑤ Classic cooler design

● Combined oil and after cooler

● Anti corrosion surface coatings

● 20% oversized

● After cooler (optional)

⑥ Innovative vectorial inverter

● CE/UL Certification 

● Meet EMC C3 and C2

● Wide voltage design

● Built-in DC reactor

● Independent cooling air duct design

⑦ Plot® Touch controller

● 7.0 inch full color touch screen LCD 

Protection against overloading, overpressure, overheating, phase unbalance plus 13 more protections.

● Modbus RTU.

⑧ Inlet valve

● Optimizes the inlet flow 

● No blow-off losses

● Maintenance free pipe design

●Large suction area, low pressure application 

⑨ Oil filter

●  High efficiency oil filter

● Oil particles down to 0.1 micron

● Smooth and well-lubricated oil system

● Multiple oil filter combination, stable operation

⑩ Oil gas tank & Built-in separation system

●Oversized air and oil tank, improved air/oil separation process

●The high efficiency oil separator ensures that the oil carry over is less than 3 ppm.

● System pressure loss < 0.02 MPa

⑪ Electrical control cabinet

Siemens core electrical components. 

⑫ All-steel internal pipe system

All steel internal pipe work, no leakage, longer life

● Less pipe pressure loss 



Data conforms to ISO 1217 (Pressure 1 bar (a), Temperature 20 deg C, R.H 0%)

Standard voltage is 380V/50HZ/3P, other voltage is available.

The recommended best capacity range is 60%-100%.

Alpine/high altitude, high temperature, high humidity, high dust loads or other adverse working conditions will require specialized custom designs. These are available on special request.

We reserve the right to make changes and improvements to the design and appearance.

Specifications may change without prior notice.

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