Two Stage Rotary Screw Compressor

Two Stage Rotary Screw Compressor
Two Stage Rotary Screw Compressor
Two Stage Rotary Screw Compressor
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Description

Equipped with a high-accuracy screw, the two stage rotary screw compressor runs stably, with the main power range from 132kw to 355kw, the air pressure ranges from 6bar to 13bar and the air flow range from 35m3/min to 54m3/min.

Parameters
Model Power (kw) Air flow/Discharge pressure
(m3/min) / (Mpa)
Weight (kg) Diameter
MFD-132A 132 35.0/0.6 28.5/0.7 28.0/0.8

4140 DN80
MFD-160A 160 37.0/0.6 35.5/0.7 35.0/0.8 28.8/1.0
4220 DN80
MFD-185A 185 40.4/0.6 37.5/0.7 37.0/0.8 35.0/1.0 28.0/1.25 4400 DN80
MFD-200A 200
40.9/0.7 40.4/0.8 37.0/1.0 35.0/1.25 4700 DN100
MFD-220A 220
50.0/0.7 46.0/0.8 39.0/1.0 33.0/1.25 7950 DN125
MFD-250A 250
54.0/0.7 51.0/0.8 41.0/1.0 39.0/1.25 8350 DN125
MFD-280A 280
60.0/0.7 57.0/0.8 49.5/1.0 43.0/1.25 8550 DN125
MFD-315A 315
67.0/0.7 62.0/0.8 56.0/1.0 51.0/1.25 9000 DN125
MFD-355A 355
73.0/0.7 69.0/0.8 61.0/1.0 54.0/1.25 10000 DN125
Features
  • The same pressure ratio is used at each step of the two stage compression and interstage pressure is set to lower each stage's pressure ratio than single-stage one, which reduces the backflow leakage among rotors and improves the volumetric efficiency and adiabatic efficiency.
  • After the first-stage compression, the air is cooled by oil injection in the interstage, reducing the second-stage suction temperature. The whole compression is near isothermal, which can reduce the power of compression effectively. In this case, the two stage rotary screw air compressor with single permanent magnet motor drive can save 15% energy at same circumstance compared with single screw compressor.
  • Equipped with big rotor, the airend has a low speed and low noise design.
  • Integrated housing design, which has two independent compression units inside, has improved the installing accuracy of the first and second stage.
  • The helical gear's direct driving has got best speed ratio for each rotor.
Related
industrial air compressor, rotary screw compressor
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