The GXS450 and GXS750 dry pumps from Edwards feature screw technology and a high-efficiency drive to deliver high-vacuum performance for applications that require rapid pumping of large gas volumes.

The GXS pumps have high peak pumping speeds of up to 436 cfm; when combined with a booster pump they can offer speeds of up to 1,978 cfm while achieving vacuum down to 3. 8 x 10^-4 Torr without purge.

The shafts on the GXS are supported at both ends for increased rigidity, resulting in improved dust handling, reduced vibration, and noise levels below 70 dB(A).

The motor is matched to the inverter to give up to 15% efficiency improvement over previous designs. The pumps also feature a controller, providing users with features such stand-by for reduced utility consumption, pressure control, and start up and shutdown routines.

Visit Edwards at Pittcon 2012, booth 2659.

Edwards, www.edwardsvacuum.com