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nXDS20i Dry Vacuum Pump by Edwards

nXDS20i Dry Vacuum Pump by Edwards
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Product ID : A73801983


The nXDSi is the next generation in completely oil free, dry scroll pumps and replaces the XDS Series. nXDS improves on legacy XDS pumps by offering increased pumping speeds, combined with lower ultimate pressures, lower power consumption and lower noise. Gas ballast allows for pumping of condensible vapours including, water, solvents, dilute acids and bases. nXDS pumps also feature the latest in tip seal technology giving significantly longer life between tip seal changes. Integrated inverter drive with auto sensing voltage input delivers optimized pumping performance globally. nXDS pumps are designed to be completely field serviceable.


  • General clean pumping applications
  • Scanning Electron Microscopes - SEM
  • Beam lines and high energy physics
  • Backing turbo pumps
  • Centrifuges, ultra-high speed
  • Coating
  • Cryogenics
  • Degassing/curing - oil, epoxy resin
  • Distillation/extraction/filtration
  • Lasers, gas recovery and recirculation
  • Freeze drying
  • Furnaces
  • Gel drying
  • Laboratory bench top vacuum
  • Mass Spectrometry
  • Leak detectors, Helium
  • Load locks and transfer chambers
  • Rare gas recirculation
  • Rare gas recovery
  • Refrigeration manufacture
  • Research and development
  • Rotary, centrifugal evaporators
  • SEM/FIB (ion beam repair)
  • Solvent recovery
  • Surface science instruments


Displacement (swept volume) 60 Hz 28m 3 h -1 (16.5 cfm)
Pneurop pumping speed 60 Hz 22m 3 h -1 (13 cfm)
Ultimate vacuum (total pressure) 0.030 mbar (0.022 torr)
Exhaust connection NW25
Motor Supply Voltage 60 Hz 1 phase
Power 300W
Inlet Connection
Operating Temperature +50 °F to 104 °F (+10 °C - 40 °C)
Storage Temperature -22 °F - 158 °F (-30 °C - 70 °C)
Noise Level @ ultimate (at 1 meter)
Vibration <4.5 mms -1 (rms)
Leak Tightness (static) <1 x 10 -6 mbarls -1 (<7.5 x 10 -7 torrls -1 )
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