Edwards STP-301 - REBUILT

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In stock
Weight 24.25 lbs
Pumping Speed 300 l/s
Ultimate Pressure 5 x 10-8 torr

Edwards Seiko Seiki STP-301 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.

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Inlet flange VG-100 / ISO-100 / ICF-152
Outlet port KF-25
Pumping Speed  
    N2 300 l/s
    H2 300 l/s
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
Specs Link
Type Label Description Download
BOC Edwards STP-301/451 Series - REBUILT Instruction Manual Download

Need modifications to this item? PTB Sales' expert team of engineers can configure products to your specific needs.

Edwards Seiko Seiki STP-301 Turbomolecular Vacuum Pump - REBUILT

P/N B748-30-020 / B74830020  STP-301  ISO-100
P/N B748-31-010 / B74831010  STP-301  DN 100 CF