Quorum Technologies


Quorum Technologies own the Polaron brand, and in early 2006 they also purchased Emitech. ProSciTech is the sole distributor for these three brands in Australasia, south of Singapore. Some additional data may be available from www.quorumtech.com.

Warranty: Quorum Technologies offer a standard 12 months warranty on all instruments. This can be extended to 3 years by filling in and returning the registration form. Pumps are excluded from the extension.

Pfeiffer DUO 6 Pump
Pfeiffer DUO 6 Pump


All sputter coaters require an appropriately sized, two stage mechanical pump. We recommend and supply Edwards (The British pump manufacturer) and Pfeiffer pumps (The German pump manufacturer). These pumps are available from us. The Pfeiffer DUO 6 rotary pump is also the best size for SEM, TEM, evaporators and is very fast on sputter coaters, other preparation equipment and for the evacuation of refrigeration/ air-conditioning systems. Within Australia and New Zealand we can supply these superior pumps very competitively.
Turbo pumped instruments include the turbo pump, but require a mechanical pump.

Note: A larger diaphragm pump is available in the Emitech range, see below. However, it should be noted that larger diaphragm pumps, when compared with rotary pumps (also called mechanical or fore-pumps) are a little noisier, require a little more maintenance, do not achieve as good an ultimate vacuum and are more expensive. The advantage of being totally oil-free remains and it is known that rotary pump oil can contaminate a system, streaming past the diffusion pump. The argument for a diaphragm pump backing of a turbo-molecular pump is weak, since that pump's action scarcely allows oil vapour into the pumped space.

For small Diaphragm Vacuum Pumps, which provide a lesser vacuum, but are oil free and excellent for pumping "wet" materials, see page V4.

For more information ask

All of our turbomolecular units are fitted with the BOC Edwards EXT70H Turbomolecular Pumping system as standard.

The turbomolecular pump is optimised for molecular flow conditions and requires a suitably sized two stage rotary vane pump or an oil free scroll pump (see below) to exhaust to atmosphere.

The design allows for high critical foreline pressures (typically up to 10 mbar) and options to use smaller backing pumps or dry diaphragm backing pumps.

DUO 5 M pump, 1-phase motor

German made

Quorum has replaced the V3 and V5 Edwards pumps with a 5m3hr-1 2 stage oil sealed rotary vane pump - Pfeiffer DUO 6 rotary pump.

  • Dual-stage, high-performance rotary vane pump with a pumping speed of 5 m3/h
  • With Single-phase motor
  • Integrated gas ballast and HV safety valve
  • For all low and medium vacuum applications
  • Magnetically coupled
  • Special feature: Various motor voltages for worldwide employment
Emission sound pressure level without gas ballast
≤ 57 dB (A)
Exhaust pressure, max.
150 hPa
Exhaust pressure, min.
250 hPa
Flange (in)DN 16 ISO-KF
Flange (out)
Leak rate safety valve≤ 1 · 10-4 hPa l/s
Magnetic coupling
Mains requirement: voltage 50 Hz200-240 (± 5 %) V
Mains requirement: voltage 60 Hz
208-240 (± 5 %) V
Operating fluid
Operating fluid filling
0.75 l
Pumping speed at 50 Hz5 m3/h
Pumping speed at 60 Hz6 m3/h
Rated power 50 Hz
0.37 kW
Rated power 60 Hz
0.37 kW
Rotation speed at 50 Hz
1500 rpm
Rotation speed at 60 Hz1800 rpm
Yes, with 2 m mains cable and safety plug
Ultimate pressure with gas ballast7 · 10-3 hPa
Ultimate pressure without gas ballast
4 · 10-3 hPa
25 kg
Ultimate pressure according to PNEUROP

More information
Pfeiffer rotary vane pump, 2 stage, oil sealed, 5m3hr-1
Oil free diaphragm pump

A totally oil free, mechanical vacuum pump.
Optimised kinetics for minimum work and wear of the diaphragm result in high reliability, low scuffing, long life and low noise level of the diaphragm.

The Three Stage Diaphragm Pump from Vaccubrand offers a low ultimate vacuum (absolute) 1.5 mbar

  • Volume flow rate m³/h (50/60 Hz) - 1.2 / 1.4
  • Motor power kW - 0.08

This pump is available for all turbo-driven instruments for a completely oil-free system.

See also our range of Diaphragm Pumps.

Diaphragm vacuum pump, oil free (23L/min)
The XDS is a completely dry, lubricant-free vacuum pump with vapour handling. It overcomes problems associated with other scroll pumps such as reliability, cleanliness, servicing, shaft seal wear and vapour handling. Designed by BOC Edwards to provide vacuum totally free of lubricants Emitech offer XDS5 & XDS10 Scroll Pumps as a back up option for the turbomolecular pumped units or as a primary pumping system.
XDS5 Dry Scroll Pump
This pump is portable, air-cooled and cost effective. Power consumption is very low and, typically, no other utilities are required.

Peak pumping speed
  • 50 Hz operation - 4.8 m³h-1 (2.8 ft³min-1)
  • 60 Hz operation - 6.0 m³h-1 (3.5 ft³min-1)
  • Ultimate vacuum (total pressure) - 1 x 10-2 torr
  • Inlet connection - NW25

Electrical supply
  • 1-phase - 110 V or 220-240 V (50 Hz), 115-120 V or 230-240 V (60 Hz)
  • 3-phase - 200-220 V or 380-415 V (50 Hz), 200-230 V or 460 V (60 Hz)
Dry scroll pump, XDS5

Truly user serviceable; with no oil to change, annual maintenance can be completed typically in about 10 minutes without special tools.

Peak pumping speed

  • 50 Hz operation - 9.3 m³h-1 (4.0 ft³min-1)
  • 60 Hz operation - 11.1 m³h-1 (6.5 ft³min-1)
  • Ultimate vacuum (total pressure) - (7´ 10-2 mbar)
  • Inlet connection - NW25

Electrical supply

  • 1-phase - 110 V or 220-240 V (50 Hz) 115-120 V or 230-240 V (60 Hz)
  • 3-phase - 200-220 V or 380-415 V (50 Hz) 200-230 V or 460 V (60 Hz)
Dry scroll pump, XDS10
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