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Edwards EXT75DX Compound Turbo Vacuum Pump - NEW

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Manufacturer Part Number: B72241000
Edwards EXT75DX Compound Turbo Vacuum Pump - NEW
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Edwards EXT75DX Compound Turbomolecular Vacuum Pump - NEW

The EXT75DX is a hybrid bearing compound turbo pump that combines the proven technology of a ceramic mechanical lower bearing, a dry permanent magnetic upper bearing and Holweck drag stage with the added convenience of an on-board 24V controller allowing parallel and serial communication compatible with our TAG and TIC controllers. It is available with either aDN40NW, ISO63, DN63CF or an ISO100 inlet flange with an N2 pumping speed of up to 66ls-1. A basic pump system would require an EXT75DX pump, a TAG or TIC controller, either an air or water cooling accessory and a suitable backing pump.

  • Compatible with TIC turbo and instrument controller
  • Multiple communication modes available including parallel mode, which allows traditional control signal interface and serial mode, which allows RS232 interface
  • Numerous user configurable parameters via RS232 interface including vent valve control settings, normal speed indication, stand-by running speed, programmable power settings, power consumption and pump temperature.
  • Enhanced monitoring capability including pump speed, power and temperature.

Inlet flange         


Pumping Speed





42 ls-1

61 ls-1

66 ls-1


49 ls-1

57 ls-1

59 ls-1


48 ls-1

53 ls-1

54 ls-1

Compression ratio



>1 × 1011


1 x 106


5 x 104

Ultimate Pressure (mbar)


With RV backing pump ISO/CF

<5 x 10-9 / 5 x 10-10

With diaphragm backing pump ISO/CF

<5 x 10-8 / 5 x 10-9

Outlet flange


Recommended backing pump*


Vent port

1/8 inch BSP

Purge port

1/8 inch BSP

Max continuous inlet pressure (light gas pumping)


Water cooling (water at 15°C, ambient temp at 40°C)

2 × 10-2 mbar

Forced air cooled, 35°C ambient

1 × 10-2 mbar

Pump rotational speed


Nominal rotational speed

90,000 rpm

Standby rotational speed

Variable from 49,500 to 90,000 rpm 
(63,000 rpm default)

Programmable power limit settings

Variable from 50-120W (80W default)

Start time to 90% speed

110 s ‡

Analogue outputs

Rotational speed;
Power consumption; Pump temp; Controller temp

Cooling method#

Forced air / water

Ambient air temperature for forced air cooling

5 - 35°C

Min cooling water flow rate (water 15°C)

15 l h-1

Water temp range

10 - 20°C

Max inlet flange temp


Operating attitude

Vertical and upright, through to 

Noise level at 1 metre

<50 dB(A)

Max magnetic field pump can tolerate

5 mT

Recommended controller

TIC100 turbo and instrument controller

Quiescent electrical power

10 W


Request for Quote

Need modifications to this item? PTB Sales' expert team of engineers can configure products to your specific needs. Please follow the above link, and fill out the quote form.

Edwards EXT75DX Compound Turbomolecular Vacuum Pump - NEW

EXT75iDX Turbo Pump DN40NW B72235000
EXT75 iDX Turbo Pump DN63ISO-K B72237000
EXT 75 iDX Turbo Pump DN63ISO-K (NW25 Interstage)  B72238000
EXT75DX DN63ISO-K  B72241000
EXT75DX DN63CF  B72242000
EXT75DX DN40NW  B72243000
EXT 75DX DN100ISOK  B72245000
EXT 75 DX DN100ISO-K (DN25NW Backing)  B72246000

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