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Edwards nXDS6i Dry Scroll Vacuum Pump, 3.6 CFM 100 – 127 V, 200 – 240 V, Single Phase, 50/60 Hz, A73501983

  • Better work environment and low environmental impact
  • Simple operation
  • No contamination and no oil to dispose of
  • Low cost of ownership
  • Quicker process


This new nXDS6i dry scroll pump range from Edwards has exceptional pumping capability, ultimate vacuum performance and state-of-the-art design features. The Edwards nXDS6i is the best performing pump in its class. The nXDS6i is up to 20 times quieter than other pumps. Its intelligent control functions and up to five year service interval offer low cost of ownership, making it the small dry pump of choice for today’s most advanced technologies.

The Edwards nXDS-6i, nXDS 6i, pumps are truly dry vacuum pumps as all the bearings, with their hydrocarbon lubricant, are isolated from the vacuum space. The nXDS6i is the next generation in completely oil free, dry scroll pumps and replaces the XDS5. 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 condensable 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.

Technical data nXDS6i nXDS10i nXDS15i nXDS20i
Nominal rotational speed 1800 rpm
Displacement m3h-1 (ft3min-1) 6.8(4.0) 12.7(7.5) 17.1(10.1) 28.0(16.5)
Peak pumping speed m3h-1 (ft3min-1) 6.2(3.6) 11.4(6.7) 15.1(8.9) 22.0(13.0)
Ultimate vacuum (total pressure) mbar (Torr) 0.020(0.015) 0.007(0.005) 0.007(0.005) 0.030(0.022)
Minimum standby rotational speed rpm 1200
Speed control resolution (percentage of full rotation speed) % 1
Max inlet pressure for water vapour mbar 35 35 35 20
Max water vapour pumping rate gh-1 110 145 280 220
Maximum continuous inlet pressure mbar 200 200 200 50
Voltage input V 100-127, 200-240 (+/-10%)
Voltage frequency Hz 50/60
Motor power 1-ph* W 260 280 300 260
Power connector 1-ph IEC EN60320 C13
Recommended fuse 10A,250Vac rms
Weight kg (lb) 26.2 (58) 25.8 (57) 25.2 (56) 25.6 (56)
Inlet flange NW25
Exhaust flange NW25
Noise level** dB(A) 52
Vibration at inlet flange mms-1(rms) <4.5
Leak tightness (static) mbar Is-1 <1×10-6
Operating temperature range °C(°F) +10 C to +40 (+41 to +104)