GB 02918 - Edition 03 - 03/2013
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A 210
The pump operating principle
Pumping principle
The ATP 2300 M is a multi-staged turbomolecular pump,
recommended for light gases pumping.
The gas molecules of the vacuum system are trapped between the
rotating disks of the rotor and the stationary disks of the stator and
carried to the exhaust of the pump.
* The gas purge provides an excellent protection for corrosive applications and
ensures the rotor cooling.
The turbopump in an
installation
At the pump exhaust, the gases are evacuated to atmosphere by a
roughing pump.
Since the ATPM compression ratio is set by the design, the pumping
performances depend on the primary pump and on the installation.
ATMOSPHERIC
PRESSURE
Primary
pumping
INLET PRESSURE
Secondary
pumping
High vacuum
Rough vacuum
Chamber
to be
pumped
Inlet
Magnetic levitated
bearings
Gas purge*
Cooling
Stator
Rotor
Motor
Dry back-up bearings
Exhaust
adixen Vacuum Products - Operating Instructions - ATP 2300 M