Edwards QMB-1200 - REBUILT

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In stock
Weight 347 lbs
Motor Power 4 hp
Pumping Speed 557 cfm
Ultimate Pressure 8 x 10-4 mbar

Edwards QMB-1200 Mechanical Vacuum Blower - REBUILT

BOC Edwards QMB mechanical booster pumps are compact and have high pumping speeds. Low system pressures can be achieved by using two or more mechanical booster pumps in series. You must use the QMB mechanical booster pump with a suitable backing pump. The maximum continuous inlet pressure is 20 mbar for the QMB250F and QMB500F mechanical booster pumps and 1 mbar for the QMB1200 mechanical booster pumps.

The QMB250F and QMB500F pumps are air-cooled and the QMB1200 pump is water-cooled. All the QMB pumps have enclosed, water-cooled motors and are therefore suitable for applications in clean environments where fan cooling is unacceptable.

The pump coupling-cover is connected to the pump outlet and forms an integral part of the vacuum system. The connecting pipelines have a filter which removes debris and so prevents contamination of the lubricating oil and bearings. For an even cleaner system, the coupling-cover and bearings can be evacuated by connection to the pump-inlet or to an external vacuum pump.

Rebuilt with one year warranty. View our inventory of Edwards blowers.

Questions? Please call our toll free number at 866-332-0500 or send an email to our sales team!

Mass 157 kg
Minimum cooling water flow 75 l/h-1
Oil capacity
    Coupling cover 2.4 l
    Gear case 1.25 l
    Shaft seal reservoir 0.125 l
Rotational speed
    50 Hz 2,900 r/min-1
    60 Hz 3,500
Ult. pressure w/o gas ballast, permanent gases 8 x 10-4 / 8 x 10-2 Pa
Pressure differential across pump determined by the hydrokinetic drive     90 mbar / 9 x 103 Pa
Recommended backing-pump QDP80 or DP180
Vacuum connections
    Inlet connection ISO160 bolted
    Outlet connection ISO100 bolted
Cooling water connections
    Inlet (BSP) 3/8 inch male
    Outlet (BSP) 3/8 inch female
Noise level 70 dB(A)


Type Label Description Download
BOC Edwards QMB Series - REBUILT Instruction Manual Download

Need modifications to this item? PTB Sales' expert team of engineers can configure products to your specific needs.

Edwards QMB-1200 Mechanical Vacuum Blower - REBUILT

A30586905 / A305-86-905  QMB-1200FX  200-460V 50/60Hz 3-phase
A30585905 / A305-85-905  QMB-1200FX  50Hz