Edwards nXDS20iR Dry Scroll Pump is an advanced, oil-free scroll pump engineered to deliver exceptional vacuum performance with robust reliability. This specialized version of the nXDS series is designed specifically for applications where minimal gas dilution and secure gas handling are critical, such as gas recirculation, rare gas pumping, and recovery processes.
Key Features:
- Sealed bearing shield design isolates process gases from bearing lubrication, ensuring a clean vacuum and preventing contamination.
- Smart motor drive provides globally consistent performance, pump overload protection, and remote start/stop capability.
- High flow gas ballast enables pumping of vapors (including water vapor) up to 240 g/h.
- Simple single-sided scroll design allows rapid maintenance in minutes for low cost of ownership and maximum uptime.
- Enhanced models deliver up to 20% reduced peak power demand during initial pump down.
- Integrated inverter drive with auto-sensing voltage input optimizes global operation.
- Noise level as low as 52 dB(A) and advanced tip seal technology for extended service intervals.
- Manual gas ballast port for easy control of vapor handling.
- Ideal companion for turbomolecular pumps and other demanding high vacuum systems.
Included Items
- Edwards nXDS20iR Dry Scroll Pump
- Power Cord
- Operator's Manual
- Manufacturer’s Documentation
- 1-Year Full Parts & Labor Warranty
Technical Specifications
| Nominal Rotational Speed | 1800 rpm |
| Displacement | 28.0 m³/h (16.5 ft³/min) |
| Peak Pumping Speed | 22.0 m³/h (13.0 ft³/min) |
| Ultimate Vacuum | 0.030 mbar (0.022 Torr) |
| Minimum Standby Speed | 1200 rpm |
| Speed Control Resolution | 1% |
| Max. Continuous Inlet Pressure | 50 mbar |
| Motor Power | 260 W (Single-phase) |
| Power Connection | IEC EN60320 C13 |
| Recommended Fuse | 10A, 250Vac rms |
| Inlet Flange | NW25 |
| Exhaust Flange | NW25 |
| Noise Level | 52 dB(A) |
| Vibration at Inlet | < 4.5 mm/s (rms) |
| Leak Tightness | < 1x10⁻⁶ mbar l/s |
| Operating Temp Range | 10 to 40°C (50 to 104°F) |
| Weight | 25.6 kg (56 lb) |
| Electrical Supply | 100-127/200-240V, 50/60Hz, 1Ph |