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EXS Dry Screw Vacuum Pumps

Increased roughing speeds and low ultimate performance for harsh industrial applications

exs dry screw pump

EXS Dry Screw Vacuum Pumps and Combinations

Based around the same technology that we use in our GXS pumps, the EXS has been designed to bring the advantages of our market leading technology in a package that focuses on simplicity and robustness. With more performance, simple control philosophy and low maintenance costs, the EXS will deliver reliable performance for many years to come. Our EXS series of dry screw vacuum pumps are available in EXS450, EXS750 and EXS750/4200 models.

EXS Dry Screw Vacuum Pumps Combinations EXS 450, 750, 750/4200 image

Robust design features

Dependable new gas system with manual gas ballast control with sleek sheet metal protective enclosure.

Simple electrical strategy

In-built, off-shelf inverter for simple connection and communication. Protection sensors fitted, electrical design for reliability and safety.

Low power and utilities consumption

The EXS has a low carbon footprint thanks to its low power and utilities usage. With no contaminated or dirty disposable oil, it is also easy on the environment.

Increased roughing speeds and low ultimate performance

Gain increased productivity with faster processing and pump down times; low ultimate pressures up to  <1 x 10-2 for dry screw vacuum pumps and <1 x 10-3 for pump plus booster combination.

Non-contacting long-life seals

Non-contacting long-life seals with integral oil blocking labyrinth seal provides highly effective sealing.

Advanced Core technology

Advanced quality bearings and special purpose oil with low vapour pressure for application compatibility. 

The EXS pump is suitable for a range of applications in various industries including:

Metallurgy

  • Vacuum Brazing
  • E-beam welding
  • Nitro carburising
  • Low pressure nitriding
  • Low pressure carburising
  • Carbon vapour impregnation
  • Sintering
  • Metal injection moulding
  • Precision investment casting
  • Vacuum arc refining
  • Steel degassing

Plasma processes

  • Plasma welding
  • Plasma nitriding

Vacuum chamber evacuation

  • Space simulation chambers
  • Gas recovery/circulation
  • Load lock chambers

LED manufacture

Solar

  • Silicon crystal-pulling 
  • PV lamination

Coating

  • Roll web coating
  • Hard coating (CVD/DLC)
  •  Surface activation
  • Plasma spray
  • Glass coating

Specification

 

Unit

Value

 

 

 

EXS450

EXS750

EXS750/4200

General

Ultimate Vacuum

Mbar (Torr)

<1 x10-2 (<8x10-3)

<1 x10-3 (<8x10-4)

Peak Pumping Speed

m3/hr (cfm)

450 (265)

740 (435)

3450 (2032)

Ultimate Power

Kw (hp)

6 (8)

10.5 (14)

12 (16)

Full Load Power

11 (15)

22 (30)

24 (32)

Maximum Rotor Speed

Rev/min

6600

DP-6600
MB-6120

Inlet/Outlet Flange

 

ISO100/NW50

ISO160/NW50

Dimensions (mm)

LxWxH mm (in)

1265 x 567 x 642

1650 x 567 x 642

1650 x 567 x 996

(49.8 x 22.3 x 25.3)

(65 x 22.3 x 25.3)

(65 x 22.3 x 39.2)

Cooling

Connection

 

G3/8'' female threads

Cooling Flow (Always On)

l/min (gal/min)

10 (2.6)

12 (3.2)

15 (4)

Maximum Supply Pressure

barg (psig)

6.9 (100)

Temperature

°C (°F)

5 to 40 (41 to 104)

Purge

Connection

 

G1/2'' female threads

Pressure

barg (psig)

2.5 - 6.9 (36 - 100)

Shaft Seal Flow (Always on)

l/min

12 (3.1)

Gas Ballast Flow (Manual Adj.)

l/min

1 - 130 (0.2-34.3)

Operation

Ambient Temperature Range

°C (°F)

5 to 40 (41 to 104)

Noise Level with Silencer

dB(A)

<64

<70

Maximum Exhaust Back Pressure

bar.a (psig)

1.2 (2.9)

EXS Dry Screw Vacuum Pump Did You Know Poster

PDF

514.6 kB

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SERVICE SOLUTIONS

Read more on our offerings in Service Solutions