The MDE series two stage rotary screw air compressor with double permanent magnet motor drive is equipped with a double motor, double drive and double screw, which has the advantage of high efficiency, large starting torque and low noise. The main power range is from 45kw to 110kw, the pressure range is from 6bar to 10bar and the air flow range is from 9m³/min to 26m³/min.

• More stable: no mechanical transmission troubles
  There is no gear shaft in the air compressor and the effective permanent magnet motor and the male rotor are directly connected on one shaft without gear drive, which can eliminate pitting of gear or hidden troubles of tooth fracture.
  Without shaft coupling, two integrated PM motors directly drive two airends of the air compressor, avoiding the hidden troubles of shaft coupling failure.
• More energy-savings: the airend is always in a smooth running state
  The two stage 3 phase permanent magnet rotary gear screw air compressor of MOAIR is powered by two independent PM motors and two independent inverters, which is intelligently controlled such as keep the airend running at a best level-pressure point by controlling discharge pressure and interstage pressure under the circumstance of different rotary speed and different pressure. The best running speed of air compressor can be automatically calculated while running and then the compression ratio can be balanced by final match, which can keep the compressor in a best running state, thus obtaining the highest efficiency.
• More effective: high-efficiency permanent magnet motor and no gear drive loss.
  With a motor of a high protection degree of IP54, it is more energy-saving and it can stay effective at low frequency and low speed.
• More environment-friendly operation with lower noise
  No noise of motor bearings, gear meshing and coupling transmission.
• More structure-compact
  The volume of PM motor is small and the structure is compact, which can save much space.

Airend
With integrated wear resistant design, the screw airend turns out to be effective in operation and long life.

Dual drive dual frequency conversion
Also serve as fan frequency conversion, which can save much energy.

Cooler
With air suction way of cooling, air flow in cooling area in cooler is very uniform which turns out to be 4.5m/s to 5m/s, improving the efficiency of cooler greatly. And the highest environment temperature can be 46℃.

Fan
Centrifugal fan of Rosecberg from Germany has low noise and high air pressure
(Take MDE160A for example)
Consumed power is lower than 3.0kw
Traditional model is 4.4kw
Power that can be saved is 1.4kw

Air/ oil Separator
With tangential air inlet, the twice return volume of oil can reach a level of 300PPM-600PPM due to the structure of cyclone separation, relieving the burden of precision oil separation and thus prolonging its life length.

Air filter
Donaldson's high-efficiency filter uses cyclone separation and nanostructured coating to filter exactly.

Oil filtration
Professional filter material can remove the impurities in oil effectively such as material particles, oil inferior and so on in order to let these inferiors into bearing and rotor, damaging the air compressor.

• Change the traditional induction motor with high-efficiency technology of permanent magnet rotary screw motor, thus reducing the consumption in transmission.
• Powered by two independent PM motors and two independent inverters, the compressor is intelligently controlled such as keep the airend running at a best level-pressure point by controlling pressure of air flow and interstage pressure under the circumstance of different rotary speed and different pressure. The best running speed of compressor can be automatically calculated while running and then the compression ratio can be balanced by final match, which can keep the compressor in a best running state, thus obtaining the highest efficiency.
• Because the gear ratio is fixed, point efficiency is emphasized in this case. That is to say, only with fixed rotary speed and rated pressure did it have the best specific power. When running in a state of variable speed and variable frequency, considering the fixed speed of gear, interstage pressure will not reach the best one. Rotational speed declining while energy consumption not declining at the same time, it is not suitable for running in variable speed and variable frequency state.