Edwards GXS Dry Screw Vacuum Pump

Models: GXS160, GXS250, GXS450, GXS750 | Manufacturer: Edwards

The Edwards GXS Dry Screw Vacuum Pump range combines unique screw technology with high-efficiency drives, advanced temperature control, and long service intervals. Available in GXS160, GXS250, GXS450, and GXS750 configurations with booster combinations, the range delivers pumping speeds from 160 to 3,450 m³/hr and ultimate pressures as low as 5 × 10⁻⁴ mbar.

Product Specifications

Peak Pumping Speed

160–740 m³/hr (Up to 3,450 w/ Booster)

Ultimate Pressure

7 × 10⁻³ to 5 × 10⁻⁴ mbar

Electrical Supply

380-460V or 200-230V 3Ø, 50/60Hz

Noise Level

<64 dB(A) to <70 dB(A)

Max Exhaust Back Pressure

1400 mbar (20 psia)

Inlet Connections

ISO63, ISO100, or ISO160

System IP Rating

Standard 21D

Lubrication

PFPE Drynert® 25/6

GXS Design and Features

Unique screw technology provides high pumping performance across the GXS range

High-efficiency electronic drives deliver maximum torque for difficult processes

Water-cooled motors and drives support reliability and long service life

Non-cantilever double-ended shaft support ensures extremely low vibration

Enhanced screw-type rotor with advanced machining eliminates need for coatings

Integrated heat management supports thermal control across inlet pressures

Rotor and stator design provides argon gas pumping at full concentration

Non-contacting long-life seals with oil-blocking labyrinth seal

Six-litre-per-minute seal purge protects gearbox from contamination

On-board controller with automated start/stop, green mode AUC, and self-cleaning

Ethernet and serial connections support remote control and monitoring

Roots booster mechanism designed for high-efficiency vacuum boosting

Applications

The Edwards GXS range is used across a broad range of industrial vacuum processes, including:

Metallurgy

Coating

Drying

Plasma Processes

Solar Manufacturing

LED Manufacture

Vacuum Chamber Evacuation

GXS Accessories and Systemization

The GXS accessory range includes foreline spool adapters, integrated inlet isolation valves, inlet filter housings, exhaust silencers, exhaust check valves, hand-held terminals, Profibus/digital interface modules, water/N₂ flow monitoring kits, and pressure and temperature transmitters. These accessories are designed for integration with the GXS range to reduce engineering and systemization requirements and support efficient, safe system configurations.