ZV37AS4i-R Inverter - Air Cooled Mitsui Seiki Air Compressors - Oil Flooded Puchong, Selangor, Kuala Lumpur (KL), Malaysia. Supplier, Suppliers, Supplies, Supply | ST Service & Trading Sdn Bhd / ST M&E Prudence Sdn Bhd
- An ideal energy saving compressor.
- The compressing efficiency is drastically enhanced by the adoption of the compressor dedicatedly developed for each model.
- Installation of the inverter realizes total energy saving.
- There is no waste because air of required pressure is taken only for necessary volume with minimum power.
- Although small, the direct-couple driving with the motor increases the air volume and reduces the maintenance work.

                                     Model ZV37AS4i-R
Items Unit
Power frequency Hz  50 / 60 
Power supply voltage V 200 / 220 / 380 / 400 /415 / 440
Free air delivery (0.7MPa)  m3 / min 6.4(7.1)*
Delivered air pressure MPa 0.7
Delivered air pressure MPa  0.54 to 0.93
Presure control method   Constant pressure control by inverter
Intake air pressure & temperature       Atmospheric pressure (0 to 40°C)    
Main motor power kW  37
Motor type     Squirrel-cage Three phase induction motor : totally enclosed external fan
Starter   Inverter
Drive system   Direct coupled motor
Cooling system     Air cooled
Fan motor power kW 1.8
Oil filling quantity 20
Cooling water amount  / min -
    Dryer Air dew point at outlet  °C   10 (under increased pressure)
Refrigerant     R·407C
Discharge pipe diameter  R  1.1/2
Dimension,L×W×H (body)  mm   1995 x 950 x 1420
Total mass (dry)[without dryer]  kg 840[700]
Noise level [OP1.5m]  dB·A 59
Dimension,LxWxH (Without dryer) mm 1415 x 950 x 1420

 Note: If you want to know the 0.5MPa specifications, please ask us.
*1: The figure in ( ) is the discharge air volume of the 0.5MPa specifications.

Adoption of the latest IPM (internal permanent magnet) motor![Remarks£şApplied only 200V / 220V / 50Hz / 60Hz]

Structural comparison of the permanent magnet motor and the induction motor

By installing the latest IPM motor (internal permanent magnet motor) which contains a permanent magnet in the latest rotor, the compressor is made smaller and the rotation is made faster. If compared with conventional induction motors, the IPM motor does not cause electricity loss or slipping of the rotor, thus drastically enhances the motor efficiency. Combined with Mitsui Seiki's advanced inverter, the total efficiency also overrides that of single induction motors. Heat generation is reduced, leading to further energy saving. Also, the motor direct-coupled driving system eliminates the loss of power, improves the engagement and the machining accuracy of the compressor's main parts, and achieves the efficiency which is much higher than conventional machines.

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