KM41A Compact PumpFree Rotor Construction Pump Requires No Side Adjustment.


Continuous Degree of Vacuum
55 kPa or lower
Flow Rate
29 L/min (60 Hz)
  • Can be hooked up directly to rubber or vinyl hoses.


Model KM41-A-101-G1
Designed Pumping Capacity (50/60 Hz) ※1 L/min 24/29
Ultimate Vacuum (50/60 Hz) ※2 kPa (min.) 67/75
Continuous operating Vacuum ※3 kPa (max.) 55
Piping Connection Size   Hose nipple outside diameter:Φ10
Voltage (50/60 Hz) V Single-Phase 100 / Single-Phase 100
Standard Motor Current Rating (50/60 Hz) A 1.1/1.2
Noise Level (50/60 Hz) ※4 dB 60/61
Motor kW 0.06
Mass kg 4.6
  1. Designed Pumping Capacity: Theoretical value calculated from cyclinder volume. Refer to "Performance Data" for actual flow rate.
  2. Operation not allowed at ultimate vacuum. For model selection purposes only.
  3. Operable range of vacuum (pressure).
  4. Operating noise measured on a new pump with an ORION recommended motor running at normal vacuum/pressure conditions. Operating noises are level is from a position of 1 m in front of the unit and at a height of 1 m.
  • Compound gauge and vacuum controller are not included as standard equipment. Install a compound gauge and a VC10 vacuum controller on the vacuum piping before the filter and use at a normal degree of vacuum.
  • Operating environment (inlet air) conditions: air temp: 0 to 40 ℃, humidity: normal level (65±20%).
  • The allowable intermittent power supply voltage fluctuation range is ±10%, of the specified voltage; allowable sustained supply voltage fluctuation range is ±5% of the specified voltage.
  • Please install an overload protection device (such as a thermal relay). Setting guideline: Use the current rating listed on the motor nameplate as a guide.
  • If detailed specifications are required, please Contact ORION to request a specifications sheet.