Fixed speed dry screw vacuum pumps DWS 200-500

Fixed speed dry screw vacuum pumps

DWS 200-500

The Atlas Copco DWS range of dry screw vacuum pumps features an innovative design with variable pitch dry screws

Robust pump for harsh industrial applications

Available in water-cooled and air-cooled variants, the DWS range - DWS 200, DWS 300, and DWS 500 is built to handle harsh contaminants in challenging and harsh industrial environments.

Lower energy consumption

The hybrid rotor design uses a combination of parallel and tapered rotor profiles, helping to optimize performance while limiting the footprint and power consumption.

Purge protection

Purge protection helps extend service intervals and prolong pump-life - the DWS is built to handle harsh contaminant ingress.

Variants available

Available in water-cooled and air-cooled variants. Direct and indirect air-cooled options are available with the DWS 200 and DWS 300 available exclusively as an air-cooled option.

Easy to configure dry vacuum pump

Configuration options for hazardous process environments are available and the pump can be easily customized to a dry vacuum pump system.

Wide range of accessories

A wide range of accessories are available, including service kits, booster support kits and silencer kits.

Clean, robust dry screw vacuum pump for demanding applications

The Atlas Copco DWS range of fixed speed dry screw vacuum pumps features an innovative design with variable pitch dry screws. Engineered to deliver clean and reliable vacuum flow, the DWS series are a robust series of dry vacuum pumps. The dry screw technology offers lower maintenance costs and are used in diverse industrial applications requiring no lubricants in the pumping chamber.

 

At the heart of the DWS Dry Screw pump is the tapered variable pitch dry screw mechanism, quick pump-down times, high pumping speed & a high tolerance for particulates.

 

The DWS 200-500 series of dry screw vacuum pumps are ideally suited for:

 

  • Lithium-ion batteries
  • Automotive coating
  • Freeze drying
  • Industrial glass coating
  • Solar cell manufacturing
  • Heat treatment
  • Brazing
  • Thin film deposition
  • Plastic extrusion
  • Pharmaceuticals
  • Renewable energy

                               Technical specifications

    Unit DWS 200 DWS 300 DWS 500
Performance Peak Pumping Speed m3h-1 / CFM 210 / 124 >280 / >165 >460 / 271
Ultimate Pressure mbar / Torr <0.05 / <0.04 <0.01 / <0.008 <0.01 / <0.008
Full Load
Power
@ ultimate pressure kW / hp 4.1 / 5.5  4.5 / 6 4.6 / 6.5
@ peak pumping load kW / hp 6.4 / 8.6 8.2 / 11 11 / 15
Vacuum
Connections
Inlet connection    ISO63
Exhaust connection   NW40 ISO 63
Cooling
Water
Connection   G1/2" female threads
Flow L/min-1 / Gal/min-1 <8 / <2.1
Supply pressure (max) bar / psig 7 / 100
DP across pump (min) bar / psig 0.2 / 2.9
Temperature oC / oF 5-35 / 41-95
Primary cooling circuit volume
(Glycol water mixture volume
in case of variant with direct
cooling)
I / gal 6 / 1.6 NA
Purge Gas Connection   G1/4" female threads
Pressure bar / psig 2.5-6.9 / 36-100
SSP flow Imin-1 <12
Gas allast flow* Imin-1 0-5
Operating
data
Noise dB(A) <76
Operating Temperature oC / oF 5-40 / 41-104
Exhaust Back Pressure (Max)** mbar / psia 1200 / 17.4
System IP rating   IP54

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