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37~55kW Class
Discharge air volume 5.4~7.9 m3/min


Ultimate high efficiency and energy saving thanks to Inverter equipped Two-stage Oil-free screw


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No matter what the load condition, Kobelco inverter control achieves ideal energy savings without unnecessary motor rotation. Instantly responding to any changes in demand pressure, pressure fluctuation could be minimized within ±0.01 MPa, thus supplying the required air volume with precisely controlled operating energy.


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Equipped with the worldÕs first IPM motor

IPM motor achieves higher efficiency than either general-purpose induction motors or high-efficiency induction motors.

Specifically designed inverter couple with IPM motor can make a power-saving effect that no-conventional inverter can make.


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Wide range Control

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Focus of energy savings from “suppression” to “effective use”
Kobelco's wide range control provides maximum air volume at your required pressure.Remarkable expansion has been achieved in range control and low-pressure operation range. Realizing the biggest air volume under low-pressure operation has met energy-saving needs and provided abundant merit for users.


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Line pressure control

The compressor can be controlled by detecting the pressure from the air line.

● Maintain a necessary pressure in the line
● The best energy saving operation is possible with an optimized discharging pressure
● Keep track of the pressure losses (losses in electric power consumption)

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Alternate operation function of two units-Graph display of operating history, weekly timer, daily report management, maintenance information, and operation status.




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Built-in Higher harmonic reactor as standard

It reduces harmonics generated by the inverter.
* Complies with harmonic suppression guidelines by the Japan Electrical ManufacturerÕs Association (JEMA)

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Soft start by KOBELCO inverter

It reduces peak current when starting-up, thus ensuring smooth start-up and reducing power supply equipment cost.




Stable operations under various environments

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