Edwards nXDS10i Oil-Free Scroll Vacuum Pump
| Brand | Edwards Vacuum |
|---|---|
| Origin | Czech Republic |
| Model | nXDS10i |
| Pump Type | Dry Scroll |
| Pumping Speed | 7–20 m³/h |
| Ultimate Pressure | 0.007 mbar |
| Dimensions (W×D×H) | 432 × 295 × 265 mm |
| Weight | 26 kg |
| Motor Power | 280 W |
Overview
The Edwards nXDS10i is a compact, oil-free scroll vacuum pump engineered for reliable, maintenance-light operation in demanding laboratory and light industrial environments. Utilizing dual-stage scroll technology, it achieves continuous, pulsation-free pumping without lubricating oil—eliminating risk of hydrocarbon contamination, oil backstreaming, or scheduled oil changes. Its robust all-metal housing and precision-machined aluminum scrolls ensure long-term dimensional stability under thermal cycling, while the integrated brushless DC motor delivers consistent torque and extended service life. Designed for ultimate pressures down to 0.007 mbar (7 × 10⁻³ mbar), the nXDS10i serves as an ideal primary vacuum source for applications requiring clean, dry, and chemically inert vacuum—such as mass spectrometry sample introduction, electron microscopy specimen preparation, thermal analysis (TGA/DSC), and vacuum drying ovens.
Key Features
- Oil-free scroll architecture ensures zero hydrocarbon emission and eliminates cross-contamination risks in sensitive analytical workflows.
- Wide operating pumping speed range of 7–20 m³/h enables adaptive performance across varying system conductance and load conditions.
- Integrated intelligent controller with real-time status monitoring (motor temperature, current draw, pump head temperature) supports predictive maintenance and fault diagnostics.
- Compact footprint (432 × 295 × 265 mm) and low weight (26 kg) facilitate benchtop integration, mobile cart mounting, or OEM equipment integration.
- Brushless DC motor (280 W nominal power) provides high efficiency, low acoustic noise (<52 dB(A)), and immunity to voltage fluctuations typical in shared lab circuits.
- IP54-rated enclosure ensures protection against dust ingress and incidental water splashing during routine lab handling.
Sample Compatibility & Compliance
The nXDS10i is compatible with non-corrosive, non-condensable gases and vapors commonly encountered in general laboratory vacuum applications—including air, nitrogen, argon, and residual solvent vapors below their dew point. It is not rated for continuous pumping of aggressive halogenated compounds, ammonia, or high-concentration acidic vapors without optional corrosion-resistant coatings or gas ballast modifications. The pump complies with IEC 61000-6-3 (EMC emissions) and IEC 61000-6-2 (immunity), meets CE marking requirements under the EU Machinery Directive 2006/42/EC and Low Voltage Directive 2014/35/EU, and conforms to RoHS 2011/65/EU restrictions on hazardous substances. Its design supports GLP-compliant documentation practices when integrated into validated systems.
Software & Data Management
The nXDS10i operates autonomously via its embedded microcontroller but supports optional RS-485 Modbus RTU or USB-to-serial interface for integration into centralized lab automation platforms. When connected, users can log operational parameters—including run time, total cycles, peak motor current, and thermal alerts—for audit-ready records. While no proprietary PC software is bundled, the pump’s open protocol allows seamless incorporation into LabVIEW, MATLAB, or custom SCADA environments. All firmware updates are delivered via signed binary files to ensure integrity; configuration changes are logged with timestamp and user ID where authentication is implemented at the host level—supporting alignment with FDA 21 CFR Part 11 requirements for electronic records in regulated laboratories.
Applications
- Primary vacuum backing for turbomolecular pumps in high-vacuum systems used in surface science and thin-film deposition.
- Direct roughing for rotary vane and diaphragm pump alternatives in glovebox purge cycles and inert-atmosphere synthesis reactors.
- Vacuum supply for benchtop X-ray diffractometers (XRD), differential scanning calorimeters (DSC), and thermogravimetric analyzers (TGA).
- Sample chamber evacuation in desktop SEMs and focused ion beam (FIB) systems where hydrocarbon-free vacuum is critical to detector sensitivity and imaging fidelity.
- Continuous-duty vacuum for lyophilizers and vacuum concentrators in pharmaceutical QC labs adhering to USP <1210> and ISO 13485 process validation protocols.
FAQ
Can the nXDS10i be used with corrosive process gases?
No—standard nXDS10i units are designed for non-corrosive, non-condensable gases only. For chlorine, HF, or HCl service, consult Edwards’ nXDS-CR variant with nickel-plated scrolls and fluoropolymer seals.
What is the recommended maintenance interval?
Under normal lab use (≤8 h/day, ambient temperature <35°C), scroll replacement is typically required after 15,000–20,000 operating hours; no routine oil changes or filter replacements are needed.
Does the pump include a built-in vacuum gauge?
No—the nXDS10i does not integrate a pressure sensor; external capacitance manometers or Pirani gauges must be installed upstream for accurate process pressure monitoring.
Is the nXDS10i suitable for continuous 24/7 operation?
Yes—its thermal management system and brushless motor design support uninterrupted duty cycles when installed with adequate ventilation (≥10 cm clearance on all sides) and ambient temperatures ≤35°C.
How does the nXDS10i compare to diaphragm pumps in terms of ultimate vacuum?
The nXDS10i achieves 0.007 mbar—approximately one order of magnitude lower than standard lab-grade diaphragm pumps (typically 0.1–1 mbar)—making it suitable for applications requiring deeper base pressures without turbo pumping stages.
