• An upgraded, dedicated compressor for each model.
  • The totally enclosed fan cooled motor is adopted for all models.
  • Although small, the driving method directly coupled with the motor increases the air volume and saves maintenance work.
  • No accelerators such as belts or gears.
  • Optimum balance with less vibration and less rotation.



Model Z555WS3-R Z556WS3-R
Items Unit
Power frequency Hz 50 60
Power source voltage V 200 200・220
Free air delivery m3/min 9.5
Delivered air pressure MPa 0.7
Capacity control method Power-saving AUCS Automatic start/stop selection
Intake air pressure &
Atmospheric pressure(2 ~ 40℃)
Main motor power kW 55
Motor type 3-phase squirrel cage、
2P totally- enclosed external fan
Starter 3-contactor、star delta start
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(out dryer)×L×H(body) mm 1990(1550)×1200×1700
Total mass (dry ) kg 1610
Noise level [OP1.5m] dB・A 65


* Values with an ambient temperature of 30; and rated discharge pressure.

◎ We have 0.83 / 0.88 / 0.93 MPa version (option). Please contact us for details.

◎ Noise values measured in a noiseless environment at a distance of 1.5 m from the front, at height of 1 m, with a load of 100% (at 0.7 MPa)

◎Cooling water volume (water temp. 32;): 80ℓ/min