A turbomolecular pump is a multistage arial flow turbine in which high speed rotating blades provide compression by increasing the probability of gas moving in the pumping direction. The turbomolecular pump is optimised for molecular flow conditions and requires a suitably sized backing pump to exhaust to atmosphere.
The range of products includes the EXT75DX compound turbomolecular pumps that combine the proven technology of a ceramic mechanical lower bearing, a dry permanent magnetic upper bearing and holweck drag stage with the added convenience of an on board controller and a 24 V d.c. motor.
EXT turbomolecular pump can get peak pumping speed from 150m3h-1 to 240 m3h-1 and compression ratio to 1 × 10-11 mbar.
The nEXT is a hybrid bearing compound turbomolecular pump. nEXT pumps combine our propen bearing technology (oil lubricated ceramic lower bearing with dry permanent magnetic upper bearing), an improved rotor design with a new molecular drag stage to deliver improved pumping speed and compression ratios, and user serviceability.
They feature 24 V to 48 V d.c. sensor less motors with a built in drive that is fully compatible with our range of TAG and TIC controllers.
nEXT turbomolecular pumps can get peak pumping speed from 160 m3h-1 to 1400 m3h-1 and ultimate vacuum to 1 x 10-11 mbar.
The STP magnetically levitated turbomolecular pumps are the first choice for high-up time, hydrocarbon free pumping. The multi-axis magnetic bearing system is used to suspend the rotor during operation, ensuring there is no risk of contamination while minimising vibration, noise and maintenance requirements.
They offer class leading pumping performance demonstrating exceptional levels of reliability, and are widely accepted in the market with the installed base of over 140,000 units worldwide.
STP magnetically levitated turbomolecular pumps can get peak pumping speed from 1 080 m3h-1 to 15 480 m3h-1 and ultimate vacuum to 1 x 10-9 mbar.
Turbomolecular pumping stations has been developed to provide a comprehensive vacuum solution with the latest technological advances for easy installation and operation. All Edwards turbomolecular pumping stations come with a TIC turbo and instrument controller, enabling system start/stop from the control panel and easy integration of Edwards active gauges.
For pumping speeds from 170 m3h-1 to 300 m3h-1 we offer our trusted nEXT85H pump with a choice of various wet and dry backing pumps and a TIC100. For pumping speeds of 860 m3h-1 to 1 440 m3h-1 the turbo pumping stations are based on our nEXT pumps offering the additional flexibility of end-user serviceability plus a choice of backing pumps and a turbo and instrument TIC200.
