Edwards E2M18 *NEW* Vacuum Pump

Cambridge Scientific ID: 17438 Category: Tag:



The EM range of oil-sealed rotary pumps is renowned for their high ultimate vacuum, rapid pumping speed, quiet operation and the ability to withstand vapour. They are commonly used for laboratory and light industrial applications. It is a freestanding instrument with the drive provided through a flexible coupling by either a single phase or three phase motor.



  • Displacement:


                  50Hz: 20.5 m3h-1 /12.1 ft3min-1
                  60Hz: 25.0 m3h-1 /14.7 ft3min-1


  • Speed (Pneurop 6602):


                   50 Hz: 17.0 m3h-1 /10 ft3min-1
                   60Hz: 20.4 m3h-1 /12.1 ft3min-1

  • Ultimate vacuum (total pressure): 

                   without gas purge: 1 x 10-3 mbar /7.4 x 10-4 Torr
                   with gas purge: 1.5 x 10-1 mbar /1.1 x 10-2 Torr
                   with Fomblin: 1 x 10-2 mbar /7.5 x 10-3 Torr

  • Inlet connection: NW25
  • Outlet connection: Nozzle 15mm external Ø removable from 3/4 in BSP tapped hole
  • Max permitted pressure at outlet: 0.5 bar gauge /7 psig
  • Max inlet pressure for water vapour: 20 mbar / 15 Torr
  • Max water vapour pumping rate: 0.3 kg h-1
  • Operating temp range: 13-40°C
  • Nominal Rotation speed 50/60Hz: 1440 /1720 rpm
  • Power connector 1-ph: IEC EN 60320 C19
  • Motor power 50Hz: 0.55 kW
  • Motor power 60Hz: 0.75 kW
  • Noise at 50Hz: 57 dB(A)
  • Oil capacity max: 1.05 litre
  • Oil capacity min: 0.75 litre
  • Recommended oil: Ultragrade 19
  • Thermal overload device: prevents overheating (single phase only).
  • The drive is provided through a flexible coupling: by a single‑phase or three‑phase (four pole) motor.
  • The motors: are totally enclosed and are cooled by the motor cooling fan.
  • Full height O ring sealed oil sight glass: for easy checking of oil level and condition



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