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Trotec SolutionsVACUUM PUMP REPAIR · TEMPE, AZ
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Edwards and Seiko Seiki turbo pumps

Independent repair for Edwards STP, EXT and nEXT pumps

Trotec Solutions repairs Edwards turbomolecular pumps, including the STP maglev line that began at Seiko Seiki, and the lubricated EXT and nEXT pumps. We test each pump with its controller, document the repair under its serial number and back it with a 12-month warranty.

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Edwards and Seiko Seiki turbo pump models we repair

These are the Edwards and Seiko Seiki model families we see most often. Don't see yours? Send the model from the nameplate.

Model familyBearingExamples and notes
STP series (Seiko Seiki and Edwards)Magnetic levitationIncluding STP-603 and STP-1003; integrated-controller STP-iXA pumps
EXT seriesLubricated bearingCompound molecular pumps, for example EXT 70 and EXT 255
nEXT seriesLubricated bearingCompact turbo pumps with integrated drive

Common Edwards and Seiko Seiki pump faults we fix

  • Bearing wear, noise and vibration
  • Levitation and bearing sensor faults on maglev models
  • Pumps that won't spin up or drop out of speed
  • Rotor damage after a crash, vent or debris event
  • Controller, power supply and cable faults

STP control units and EXT drive controllers such as the EXDC are repaired and matched to the pump. See controller repair.

How Edwards pump repairs work

  1. Send the model and serial number

    Request a quote with the manufacturer, model, serial and part number so we can check its history and parts.

  2. Ship or drop off at our Tempe shop

    Send the pump, and the controller and cable if you have them, so we can test and tune them together.

  3. Test, evaluation and failure analysis

    We find what failed and why, then confirm the repair scope with you before work starts.

  4. Repair, balance and run test

    Standard or major service, bearing and rotor work and controller tuning, documented step by step.

  5. Return with a 12-month warranty

    Your pump ships back covered against part defects and workmanship for 12 months.

Brand names identify the equipment we service. Trotec Solutions is an independent repair company and is not affiliated with or authorized by these manufacturers.

Other brands: Pfeiffer, Alcatel / Adixen, Leybold, Shimadzu, Osaka, Ebara, Mitsubishi.

Common questions

Do you repair Edwards and Seiko Seiki pumps that are out of warranty or discontinued?

Yes. We repair current and legacy Edwards and Seiko Seiki turbo pumps. Send the model and serial number and we'll confirm before you ship.

Should I send the controller with my Edwards pump?

Yes, when you can. Testing the pump, controller and cable together is how most levitation and spin-up faults get traced, and it lets us tune the set.

Are you an authorized service center for this brand?

No. Trotec Solutions is an independent repair company, not affiliated with or authorized by the manufacturer. Every repair is backed by our own 12-month warranty.

Get a quote for your Edwards pump

Send the model and serial number, and the controller model if you have it.

Request a quote