• Inverter control + optimal control of air volume increase.
  • The inverter monitors the revolution speed and the increase and decrease of air.
  • The optimal load which our customer wants is always considered.



Model ZV55WS4i-R
Items Unit
Power frequency Hz 50 / 60
Power source voltage V 200 / 200・220
Free air delivery m3/min 9.5 (11.0)※
Delivered air pressure MPa 0.7  [0.53 ~ 0.93](0.50)※
Capacity control method Constant pressure control by inverter
Intake air pressure &
Atmospheric pressure(2 ~ 40℃)
Main motor power kW 55
Motor type 8P, Totally enclosed fan cooled IPM motor
Starter Inverter starter
Drive system Direct coupled motor
Cooling system Water cooled
Fan motor power kW 0.08 / 0.12
Oil fill ration L 60
Dryer Air dew point at outlet 10(under applied pressure)*
Refrigerant R-410A
Discharge pipe diameter R 2
W×L×H (body) mm 2325 (1848) ×1200×1700
Total mass (dry ) kg 1450
Noise level [OP1.5m] dB(A) 64


Cautions:Dryer of low-pressure specifications(factory option)shall be a separate type. Please contact us for dryer dimensions and mass.
Values in ( )*are the free air delivery for 0.50 MPa specification(factory option).