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Edwards STP-301H Turbo Vacuum Pump - REBUILT

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Edwards STP-301H Turbo Vacuum Pump - REBUILT
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Edwards Seiko Seiki STP-301H Turbomolecular Vacuum Pump - REBUILT

An STP pump can be installed in any orientation and operate by remote control. If any rotor imbalance occurs (by deposition of process by-products, for example) sensors detect changes in its motion and compensate the magnetic fields accordingly. There are backup precision mechanical bearings to protect the pump in the event of a total disruption of magnetic suspension or a sudden massive air inrush that overcomes the magnetic bearing stiffness.

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

Inlet flange VG-100 / ISO-100 / ICF-152
Outlet port KF-25
Pumping speed  
    N2 300 ls-1
    H2 300 ls-1
Compression ratio  
    N2 > 108
    H2 > 2 x 104
Ultimate pressure with bake out heating (VG / ISO flange)     6.5 x 10-6 Pa (5 x 10-8 Torr)
Ultimate pressure with bake out heating (ICF flange) 10-8 Pa (10-10 Torr)
Maximum allowable inlet pressure (ambient cooled) 0.066 Pa (5 x 10-4 Torr)
Max continuous outlet pressure (ambient cooled) 13 Pa (0.1 Torr)
Rated speed 48,000 rpm
Starting time 3 min
Maximum inlet flange temperature 120°C
Input voltage 100 to 120 (± 10%) VAC or
  200 to 240 (± 10%) VAC
Power consumption at start up 0.55 kVA
Pump weight 11 kg
Controller weight 8 kg

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Need modifications to this item? PTB Sales' expert team of engineers can configure products to your specific needs. Please follow the above link, and fill out the quote form.

Edwards Seiko Seiki STP-301H Turbomolecular Vacuum Pump - REBUILT

STP-300H