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Vacuum Equipment

Cryopump Refurbishment Procedures

Working & Warranted cryopumps sold by Capovani Brothers are refurbished and tested at our Scotia, New York facility according to the procedures below. 30-Day Return equipment is evaluated separately based on physical condition and, in some cases, powered on. Each product listing clearly identifies the condition and coverage that applies.

What We Check

Our Cryopump Refurbishment Process

Initial Cryopump Assessment

  • Overall assessment performed; cryopump made operational in current condition to identify problematic areas before testing begins

Sealing Surface Inspection

  • Main sealing surface visually inspected for scratches, dings, and wear. Conflat knife edges must be in near-perfect condition; nicks, dings, or deep scratches are not tolerated

Cryogenic Array & Radiation Shield Inspection

  • 15K and 80K arrays inspected for corrosion and degradation; replaced as necessary
  • Radiation shield inspected for corrosion and degradation; repaired or replaced as necessary

Pump Can Inspection

  • Pump can inspected for corrosion and deformation. Deformed pump cans are not sold; cans needing electro-polishing are sent out

Heat Pump Inspection & Refurbishment

  • Heat pump inspected for wear and operated to assess performance and audible noises indicating mechanical wear; rebuilt (interior cleaned, seals and bearings replaced) if needed

Regeneration & Pressure Relief Components

  • Regeneration purge fitting inspected, verified, and seals replaced as necessary
  • Pressure relief valve inspected, verified, and seals replaced as necessary

Cryopump Sensors & Internal Components

  • Hydrogen vapor bulb assembly inspected, verified, and replaced as necessary
  • Silicon diode temperature sensor inspected, verified, and replaced as necessary

Final Cryogenic Performance & Leak Check

  • Cryogenic performance verified and leak checked

Brands We Stock & Refurbish

Cryopump Manufacturers

Browse Our Used Cryopumps

Questions about a specific item? Contact our sales team.