Edwards nXDS20i Dry Scroll Pump
Ultimate Vacuum
0.030 mbar / 0.022 Torr
Inlet Flange
NW25
Displacement
28.0 m3h-1 / 16.5 ft3min-1
Features
- Bearing shield ensures separation between process gases and bearing lubrication to ensure clean vacuum and no possibility of contamination.
- Smart motor drive means consistent performance globally, pump overload protection and remote start/stop capability.
- High flow gas ballast feature allows pumping of vapours including water vapour at up to 240 gh-1
- Simple single sided scroll design allows maintenance to be done in minutes for low cost of ownership and maximum up-time.
- Enhanced versions offer up to 20% lower peak power requirements during initial pump down.
The nXDS allows a wide range of control and communication options
The nXDS comes as standard with a manual, easy to use, gas ballast port
A perfect companion for your turbomolecular pump
With exceptional pumping capability, ultimate vacuum performance and state-of-the-art design features Edwards nXDS is the best performing pump in its class.nXDS improves on legacy XDS pumps by offering increased pumping speeds, combined with lower ultimate pressures, lower power consumption and lower noise – up to 20 times quieter than other pumps. 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 optimised pumping performance globally.
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INCLUDED:
The Edwards nXDS20i Dry Scroll Pumpincludes:
- 1 Year Manufacturer’s Warranty
- Power Cord
- Manufacturer’s Documentation
- Operator’s Manual
Edwards nXDS20i Dry Scroll Pump Technical Specifications
| Nominal rotational speed | 1800 rpm |
| Displacement | 28.0 m3h-1 / 16.5 ft3min-1 |
| Peak pumping speed | 22.0 m3h-1 / 13.0 ft3min-1 |
| Ultimate vacuum (total pressure) | 0.030 mbar / 0.022 Torr |
| Minimum standby rotational speed | 1200 rpm |
| Speed control resolution (percentage of full rotation speed) | 1% |
| Pumping speed at minimum rotational speed | 10 |
| Maximum continuous inlet pressure | 50 mbar |
| Motor power 1-ph | 260 W |
| Power connector 1-ph | IEC EN60320 C13 |
| Recommended fuse | 10A, 250Vac rms |
| Inlet flange | NW25 |
| Exhaust flange | NW25 |
| Noise level | 52 dB(A) |
| Vibration at inlet flange | <4.5 mms-1 (rms) |
| Leak tightness (static) | <1×10-6 mbar ls-1 |
| Operating temperature range | 10 to 40 °C / 41 to 104 °F |
| Weight | 25.6 kg / 56 lb |
| Electrical Supply | 100-127/200-240V 50/60Hz, 1Ph |
Comparison of Models
|
Specification |
Edwards nXDS6i |
Edwards nXDS10i |
Edwards nXDS15i |
Edwards nXDS20i |
|
Nominal rotational speed (rpm) |
1800 |
1800 |
1800 |
1800 |
|
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 |
|
Weight (kg / lb) |
26.2 / 58 |
25.8 / 57 |
25.2 / 56 |
25.6 / 56 |
|
Inlet flange |
NW25 |
NW25 |
NW25 |
NW25 |
|
Noise level (dB(A)) |
52 |
52 |
52 |
52 |
|
Operating temperature range (°C / °F) |
10 to 40 / 41 to 104 |
10 to 40 / 41 to 104 |
10 to 40 / 41 to 104 |
10 to 40 / 41 to 104 |
|
Electrical Supply |
100-127/200-240V 50/60Hz, 1Ph |
100-127/200-240V 50/60Hz, 1Ph |
100-127/200-240V 50/60Hz, 1Ph |
100-127/200-240V 50/60Hz, 1Ph |








