Description
Edwards nXDS6i / nXDS6iC / nXDS6iR Dry Scroll Vacuum Pumps | USA Lab
The Edwards nXDS6 series is a compact, oil-free dry scroll platform ideal for laboratories and process lines that demand clean vacuum, low maintenance, and consistent uptime. Choose from the standard nXDS6i, the corrosion-resistant nXDS6iC, or the nXDS6iR variant configured without gas ballast.
Each model features NW25 (DN 25 ISO-KF) inlet/outlet flanges, quiet 52 dB(A) operation with forced-air cooling, and universal single-phase power. UL/CSA/CE/EAC certifications make integration straightforward for research, analytical, and pilot-scale environments.
With IP20 protection, balanced scrolls, and DX-protocol communication interface, the nXDS6 family offers dependable rough vacuum performance across a wide range of applications.
Confirm electrical plug style and clearance using the dimensions table below before ordering. Cables and certain accessories (e.g., gas ballast, inlet filters) are selected separately.
Dry Scroll Pump NW25 Inlet/Outlet 52 dB(A) Quiet UL / CSA / CE / EAC
Clean, oil-free vacuum: Dry scroll mechanism protects samples and instruments—no oil back streaming.
Quiet & compact: 52 dB(A) with forced-air cooling and small footprint for benchtop or rack installs.
Built for uptime: IP20, DX protocol, global 100–240 V input, and certified to UL/CSA/CE/EAC.
Why buy from USA Lab
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Tested and trusted products.
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Nationwide 1-2 day shipping.
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US-based service & spares.
US-based service & spares.
Resources & Downloads
Why these nXDS6 pumps?
- Oil-free performance — dry scroll technology eliminates oil changes and contamination risk.
- Lab-friendly acoustics — only 52 dB(A) with forced-fan cooling for 24/7 operation.
- Universal power — 1-Ph, 100–127/200–240 V, 50/60 Hz with IEC C14 inlet.
- Certified & safe — UL 61010-1 (3rd Ed.), CSA C22.2 No. 61010-1-12, CE, EAC.
- Pick your variant — standard (nXDS6i), corrosion-resistant (nXDS6iC), or R variant without gas ballast (nXDS6iR).
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Get sizing help, application matching, and accessory recommendations.
Technical Specifications
| Specification | nXDS6i | nXDS6iC | nXDS6iR |
|---|---|---|---|
| Connection Inlet Flange | DN 25 ISO-KF (NW25) | DN 25 ISO-KF (NW25) | DN 25 ISO-KF (NW25) |
| Connection Vacuum Outlet Flange | DN 25 ISO-KF (NW25) | DN 25 ISO-KF (NW25) | DN 25 ISO-KF (NW25) |
| Weight | 26.20 | 26.20 | 26.20 |
| Leak Rate | 1.000 × 10⁻⁷ | 1.000 × 10⁻⁷ | 1.000 × 10⁻⁷ |
| Power Supply Phase | 1-Ph | 1-Ph | 1-Ph |
| Power Supply Voltage | 1Ph 100–127/200–240V 50/60Hz | 1Ph 100–127/200–240V 50/60Hz | 1Ph 100–127/200–240V 50/60Hz |
| IP Rating | IP20 | IP20 | IP20 |
| Power Supply Frequency | 50 / 60 Hz | 50 / 60 Hz | 50 / 60 Hz |
| Dimension Length | 0.432 | 0.432 | 0.432 |
| Dimension Height | 0.302 | 0.302 | 0.302 |
| Dimension Width | 0.282 | 0.282 | 0.282 |
| Connector (Electrical Power) | IEC EN60320 C14 (male for C13) | IEC EN60320 C14 (male for C13) | IEC EN60320 C14 (male for C13) |
| Noise / Sound Level | 52.00 dB(A) | 52.00 dB(A) | 52.00 dB(A) |
| Cooling Method | Air cooling (forced fan) | Air cooling (forced fan) | Air cooling (forced fan) |
| Vibration Level Velocity (rms) | 4.500 × 10⁻³ m/s | 4.500 × 10⁻³ m/s | 4.500 × 10⁻³ m/s |
| Product Certifications | CE; UL 61010-1 (3rd Ed.); CSA C22.2 No.61010-1-12; EAC | CE; UL 61010-1 (3rd Ed.); CSA C22.2 No.61010-1-12; EAC | CE; UL 61010-1 (3rd Ed.); CSA C22.2 No.61010-1-12; EAC |
| Accessories / Scope of Supply | Mains power cable not included; select by region. See gas ballast and filter accessories for reliable operation. | ||
| Dimension Comments | Length/width/height describe outer shape in typical orientation; verify 2D drawings and 3D models for detailed fit. | ||
| Certification Motor | UL 61010-1 (3rd Ed.); CSA C22.2 No.61010-1-12 | UL 61010-1 (3rd Ed.); CSA C22.2 No.61010-1-12 | UL 61010-1 (3rd Ed.); CSA C22.2 No.61010-1-12 |
| Performance Data | |||
| Pressure Water Vapour Max | 3500.00 | 3500.00 | 3500.00 |
| Capacity Water Vapour | 3.056 × 10⁻⁵ | 3.056 × 10⁻⁵ | 3.056 × 10⁻⁵ |
| Pressure Ultimate with Gas Ballast | 5.00 | 5.00 | 5.00 |
| Pressure Ultimate | 2.00 | 2.00 | 2.00 |
| Nominal Rotational Speed | 30.00 | 30.00 | 30.00 |
| Power at Atmosphere (Continuous) | 270.00 | 270.00 | 270.00 |
| Power at Ultimate | 260.00 | 260.00 | 260.00 |
| Power in Standby Mode | 170.00 | 170.00 | 170.00 |
| Pumping Speed Air/N₂ (@50Hz or max default) | 1.722 × 10⁻³ | 1.722 × 10⁻³ | 1.722 × 10⁻³ |
| Power at Ultimate with Gas Ballast | 260.00 | 260.00 | 260.00 |
| Operation Conditions – Limitations | |||
| Pressure Absolute Inlet (Continuous Max) | 20000.00 | 313.15 | 313.15 |
| Altitude Max | 2000.00 | 278.15 | 278.15 |
| Pressure Absolute Outlet (Continuous Max) | 1.500 × 10⁵ | 243.15 | 243.15 |
| Environmental Conditions (reference) | 343.15 | 343.15 | |
| Temperature Ambient Operation Max | 313.15 | ||
| Temperature Ambient Operation Min | 278.15 | 20000.00 | 20000.00 |
| Temperature Ambient Storage Min | 243.15 | 2000.00 | 2000.00 |
| Temperature Ambient Storage Max | 343.15 | 1.500 × 10⁵ | 1.500 × 10⁵ |
| Classification | |||
| Product Pressure Range | Medium Vacuum: 1 mbar – 1·10⁻³ mbar | Medium Vacuum: 1 mbar – 1·10⁻³ mbar | Medium Vacuum: 1 mbar – 1·10⁻³ mbar |
| Rough Vacuum Range | 1000 mbar – 1 mbar | 1000 mbar – 1 mbar | 1000 mbar – 1 mbar |
| Vacuum Pump Class | Rough Vacuum Pump | Rough Vacuum Pump | Rough Vacuum Pump |
| Dry or Wet | Dry | Dry | Dry |
| Vacuum Pump Technology | Dry Scroll Pump | Dry Scroll Pump | Dry Scroll Pump |
| Connectivity / Interface | |||
| Communication Interface Protocol | DX protocol | DX protocol | DX protocol |
| Variants | |||
| Variant Scroll Pump | standard | C | R |
| Notes | Standard variant | C – Corrosion resistant | R – Variant without gas ballast |
| ATEX Category | Ex II 3 G Ex h IIC T4 Gc X (internal atmospheres only) | Ex II 3 G Ex h IIC T4 Gc X (internal atmospheres only) | Ex II 3 G Ex h IIC T4 Gc X (internal atmospheres only) |
| Materials of Construction | |||
| General MoC | Steel, copper, hydrocarbon lubricant and chemically resistant polymers | Steel, copper, hydrocarbon lubricant and chemically resistant polymers | Steel, copper, hydrocarbon lubricant and chemically resistant polymers; special sealing polymers to improve corrosion resistance |
| Materials Exposed to Vacuum | Anodised aluminium, cast aluminium, nickel, PTFE, stainless steel, fluorocarbon elastomer seals, chemically resistant polymers | Anodised aluminium, cast aluminium, nickel, PTFE, stainless steel, fluorocarbon elastomer seals, chemically resistant polymers | Anodised aluminium, cast aluminium, nickel, PTFE, stainless steel, fluorocarbon elastomer seals, chemically resistant polymers |
| Rotor Material | Aluminum anodised | Aluminum anodised | Aluminum anodised |
| Stator Material | Aluminum anodised | Aluminum anodised | Aluminum anodised |
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FAQ
What are the differences between nXDS6i, nXDS6iC, and nXDS6iR?
nXDS6i is the standard model. nXDS6iC uses corrosion-resistant materials/seals for aggressive vapors. nXDS6iR is supplied without gas ballast for applications that do not require vapor handling.
Do these pumps need oil changes?
No. They are dry scroll designs—no oil in the vacuum path—reducing maintenance and contamination risk.
What does the gas ballast do?
Gas ballast improves handling of condensable vapors (e.g., water). If you frequently pump moisture or solvents, choose nXDS6i or nXDS6iC and add the appropriate ballast accessory.
Are cables and filters included?
Power cable is not included and must be selected for your region. Inlet filters and foreline accessories are optional.
Important Shipping Notice!
DISCLAIMER:
All items are carefully packaged to ensure safe delivery. In the rare event that your item arrives damaged, please notify us within 3 days of receipt. We will promptly provide a replacement or issue a refund.
Please note that any damage occurring after delivery is not covered under warranty. We appreciate your understanding and your trust in our products.
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