Oil-Free Vaccum Pump KCM620 High Vacuum and High Flow Rate with Further Enhanced Energy Savings

Built to Order Item


  • -01 Models: Without Casters
  • -02 Models: Includes Casters
Degree of Vacuum
0 to 100 kPa or higher
Motor Output
11 to 275 kW
Flow Rate
0 to 15,400 m3/h
  • First in the Industry to Adopt a Modular Design
  • This Module-Multi Model® inverter and multi-unit control combination offers not only energy saving performance, but also a high degree of vacuum and high flow rate.
Photo (from left):
Eco Speed Box,
5 KCM620 Units
eco speed control
[eco speed® control]
Energy saving mechanism that works by automatically adapts
motor speed to changes in air consumption.
  • Rotor
  • 静音
    Noise Reduction
  • Inverter
  • Long Life
    Long Life
  • Dry Slide
    Dry Slide
  • Easy Operation
    Easy Operation
Continuous operation

Thanks to the 2-stages (2-stage compression), we can achieve continuous operation at the attainable pressure of 100 kPa, despite being oil-free.

Compact, space saving design.

The compact modular design that doesn't require side maintenance space, making installation easy, anywhere.


▲Setup possible with walls on both sides of the product.

LOOk Built to offer energy-saving wide ranging vacuum. Patent
  • Electrical power consumption optimized over the full range of degree of vacuum (from open atmosphere to attainable vacuum).
  • Constructed to prevent overcompression of exhaust air.

At high degrees of vacuum, a back-flow of air is formed in the exhaust process, and this returning air results in a loss of energy. The KCM series sports a new design that reduces energy losses by reducing the volume just before opening the exhaust port. On the other hand, when open, the volume of air increases, there is an over-increase in pressure, and power consumption will rise. "Supplementary Exhaust Ports" are established and the power consumption drops.

Energy saving pump construction
System Image

The KCM620 requires an ESB (Eco Speed Box / Multi-Unit Control and Inverter Control Board) for operation. The ESB can control up to 5 units. Expansion of up to 25 units is possible using the group controller (Eco Multi Box). (Special Order)

System Image
System Image
Intelligent Touch Panel for Easy Operation

Various operating conditions and settings can be confirmed and operated, and operating conditions can be confirmed via the visual and intuitive touch panel.

Intelligent Touch Panel
  1. ❶ Display Measured Degree of Vacuum
    Digital display of degree of vacuum (in 1 kPa units)
  2. ❷ Display Set Degree of Vacuum
    Digital for easy vacuum settings (in 1 kPa units)
  3. ❸ Display Operating Mode
  4. ❹ Display Operating Load
  5. ❺ Display Operating Conditions
  6. ❻ Display Alarm Number
  7. ❼ Display Pump Start/Stop Time


Module Pump Eco Speed Box
1 Unit 2 Units 3 Units 4 Units 5 Units ESB□-◯ ◯ -01
Motor Output kW 11 22 33 44 55
Flow Rate ※1 m3/h 616 1232 1848 2464 3080
m3/min 10.2 20.5 30.8 41.1 51.3
Ultimate Vacuum kPa 100 or higher
kPa(abs) 1.3 or lower
Operating Noise Level ※2 dB 75
Piping Connection Size   100A JIS 10K flange 100A JIS 10K flange × 2 100A JIS 10K flange × 3 100A JIS 10K flange × 4 100A JIS 10K flange × 5
Mass kg 800 1600 2400 3200 4000 120 to 200
Motor Output, Number of Units   11 kW ・ 4P × 1 Unit 11kW ・ 4P × 2 Unit 11kW ・ 4P × 3 Unit 11kW ・ 4P × 4 Unit 11kW ・ 4P × 5 Unit
Specifications   Top Runner compliant high efficiency motor
Working Environment Place of Instllation   Indoors
Allowable Ambient Temperature※3 5 to 40
Allowable Ambient Humidity   65 ± 20%RH (JIS Z8703)
Operable Elevation ※4 m 1000 or lower
Rated Voltage And Fiequency※5   Three-phase 200 V 50/60 Hz, 220 V -60 Hz
Control Method   Inverter Built-in load detecting automatic speed control circuit.
Automatic Speed Control Range Hz 20 to 60
Optional Equipment   Intake filter
  1. This is the designed flow rate based on the cylinder volume of the pump. Confirm the actual flow rate based on the pressure-flow diagram.
  2. Operating noise measured at an operating vacuum of 80kPa with 200V/60Hz power supply, and is not a guaranteed value.
  3. If the pump is started where the ambient temperature is around 0 °C, a high frequency noise may be heard. The noise will naturally go away in a short time and does not indicate abnormal operation. If a high pitch noise continues for more than 30 minutes, consult with your dealer or a qualified repair person.
  4. Please consult with ORION if the product is to be operated at an elevation above 1000 m.
  5. The power supply voltage must not have intermittent fluctuations greater than 10%, or 5% if fluctuations are continued.
  • Please cousult your dealer regarding water-cooled specifications.
Intake Filter VF500 to VF3000 Spec. External Diagram

This filter Prevents particulate from entering the vacuum pump.
The ORION KCM620 oil free vacuum pump does not include an intake filter. Please choose the filter that best suits your working environment.

VF Series Intake Filter

Intake filter VF500 to VF3000