Edwards Vacuum XDS46 Small Dry Scroll Pumps

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SKU Variant Model Weight (In Grams) Price (excluding VAT) Availability Qty To Purchase
Edwards Vacuum XDS46 Small Dry Scroll Pumps A73101983 Standard product XDS46i 0 £12068.00 Usually Shipped in 3-4 Weeks Contact Us for Exact Information
Edwards Vacuum XDS46 Small Dry Scroll Pumps A73106983 C - Corrosion resistant variant XDS46iC 0 £12535.00 Usually Shipped in 3-4 Weeks Contact Us for Exact Information

Scroll pumps are an excellent alternative to rotary vane pumps where oil free pumping is desirable. The XDS pumps in particular use an innovative bearing shield to isolate the vacuum environment from all forms of lubricant not only making them totally dry, but also protecting the bearing from any process gases. Vapour handling is enabled by an adjustable gas ballast; this allows the range of pumps to satisfy many applications that were previously off limits to other scroll pumps. 

XDS scroll pumps have become industry standard when dry pumping is essential, proving to be a robust and clean vacuum pump solution in a range of applications and processes.

The XDS35i pump has an innovative bearing shield that isolates the vacuum environment from all forms of lubricant, making it not only lubricant-free but hermetically sealed. XDS35iNGB variant has had the gas ballast feature removed for applications such as rare gas recirculation and gas recovery.

The XDS46i shares many of the same features of the XDS35i but with a peak speed of 40 m3h-1. The pump has been optimised for maximum pumping speed at inlet pressures between 1 mbar and 10 mbar, making it ideally suited for LCMS and ICPMS applications requiring higher pumping speeds.

The C variant has been modified so that it is more suitable for use on vapour handling processes and may be used in some applications using corrosive substances. The C version is fitted with Chemraz® internal valve pads and stainless steel exhaust port.

Chemraz® is a registered trademark of Greene Tweed


Scroll pumps use intermeshing fixed and orbital scrolls to form non-contacting, crescent shaped gas pockets that are continuously compressed by the orbiting action. This means that, unlike oil-sealed rotary pumps, there is no sealant or lubricant required in the swept volume of the pump.


  • Automotive; brake line and air conditioning evacuation
  • Backing turbomolecular  pumps
  • Chemical applications including gel dryers and solvent recovery
  • Coating systems
  • High energy physics
  • Mass spectrometry 


General Product Information

Dimension Length 0.400 
Connection Vacuum Inlet Flange DN 40 ISO-KF (NW40)
Noise Level 55.40 db(A)
Supply Frequency 50 Hz
60 Hz
Weight 48.00 
Power Supply Phase 1-Ph
Dimension Height 0.476 
Cooling Method Air Cooling (forced - fan)
Connection vacuum outlet flange DN 25 ISO-KF (NW25)
Dimension Width 0.290 
Supply Voltage 1Ph 100-120/200-230V 50/60Hz
IP Rating IP44
Connection Power IEC EN60320 C20 - Male (for C19 plug on mains cable)
Leak Rate 1.000 × 10⁻⁷ 
Vibration Level Velocity (rms) 4.500 × 10⁻³ m/s
dimensionsCombinedLengthWidthHeight 0.400 

Performance Data

Power Total Rated 520.00 
Pumping Speed 0.012 
Pressure Ultimate 5.00 
Power at Ultimate (Quiescent) 440.00 
Rotational Speed Nominal 29.16 
Pressure Water Vapour Max. 4000.00 
Power at Atmosphere Short Term Max 2300.00 
pressureUltimateWithGasBallast 1000.00 

Operation Conditions - Limitations

Pressure Inlet Continous Max. 4000.00 
Pressure Outlet Continous Max. 1.200 × 10⁵ 
Altitude Max. 2000.00 

Environmental Conditions

Temperature Ambient Operation Max. 40.00 
Temperature Ambient Operation Min. 10.00 
Temperature Ambient Storage Min. -30.00 
Temperature Ambient Storage Max. 70.00 


Product Pressure Range Medium Vacuum - 1 mbar - 1*10-3 mbar
High / Medium / Rough Vacuum Classification Medium Rough Vacuum Pump
Dry or Wet Pump Dry pump
Vacuum Pump Technology Dry Scroll Pump

Connectivity - Communication Interface

Communication Interfaces Customer Parallel I/O
Display local (hours counter)
Connection electrical comms interface connector DSUB 15-PIN - Female


Variant Atex Category Ex II 3 G Ex h IIB T4 Gc - internal atmospheres only
Variant Scroll Pumps C - Corrosion resistant variant
    • SKU
    • Commodity Codes
  • Manufacturer
    Edwards Vacuum
  • Country of Origin
    Czech Republic
  • Variant
    Standard product, C - Corrosion resistant variant
  • Model
    XDS46i, XDS46iC
  • Supply Voltage
    100-120/200-230V 50/60Hz 1Ph