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The first sizes available are the blower types GM 8000 HM and GM 9500 HM for volume flows in the range of 8.000 m³/h to 15.300 m³/h at speeds of 50 c/s and 60 c/s. Thanks to the hermetic design a vacuum of 10-5 mbar (abs.) can be obtained. Further sizes in the medium volume flow range from 2.000 m³/h to 7.500 m³/h will probably come into the market in summer 2009, so that a total variety of 7 machine sizes can be offered then.
The main advantages of the new vacuum blowers are the optimum selection possibilities by the world’s biggest canned motor series as well as by 3 additional motor variants. The customer can select from a substantial modular construction system the optimal blower-motor type for his application. Consequently, machines are available for the application with non-aggressive gases (PVD) and for aggressive gases (CVD) as well as with various motor types for process- resp. load lock operation. In addition, Aerzen blowers distinguish from all others by a high mechanical load (up to 250 mbar) making possible a considerable decrease of pumping-out periods. The water cooling of the motor of Aerzen canned blowers also guarantees the application under clean-room conditions. Furthermore, the vacuum blowers are type-tested and certified for ATEX-zone 0 (internal).
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