- The inverter monitors the revolution speed and the increase and decrease of air.
- The optimal load which our customer wants is always considered.
|Power frequency||Hz||50 / 60|
|Power supply voltage||V||200 / 220 / 380 / 400 /415 / 440|
|Free air delivery (0.7MPa)||m³ / min||13.0(14.0)*|
|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¡ãC)|
|Main motor power||kW||75|
|Motor type||8p,totally-enclosed-fan-cooled permanent magnetic rotator adjustable-speed synchronous motor (IPM motor)|
|Drive system||Direct coupled motor|
|Cooling system||Water cooled|
|Fan motor power||kW||0.08 x 2 / 0.12 x 2 [50 / 60 Hz ]|
|Oil filling quantity||60|
|Cooling water amount||/ min||110|
|Dryer||Air dew point at outlet||¡ãC||10 (under increased pressure)|
|Discharge pipe diameter||R||2|
|Dimension,L¡ÁW¡ÁH (body)||mm||2883 x 1200 x 1700|
|Total mass (dry)[without dryer]||kg||1740|
|Noise level [OP1.5m]||dB¡¤A||66|
|Dimension,LxWxH (Without dryer)||mm||2140 x 1200 x 1700|
*1: The figure in ( ) is the discharge air volume of the 0.5MPa specifications.
Adoption of the latest IPM (internal permanent magnet) motor!
|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.