Home > Vacuum Pumps > Cryo > CTI-Cryogenics > On-Board IS - REPAIR SERVICE > CTI On-Board IS 320FE - REPAIR SERVICE
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Price: Call for Quote

Return Material Authorization

To request an RMA, click the button below and fill out the form or contact us directly.


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Request an RMA  Return Material Authorization

Need an exchange?  We recognize that some replacements are more critical than others or that it is not convenient to remove a pump without the replacement immediately at hand. On our form, check the box to request an exchange and we will follow up with current availability.

Procedures for shipping used equipment to PTB Sales:

  • Seal openings.
  • Attach our pump declaration form to the equipment to declare what contaminates the equipment has been exposed to.

There is a $300 Evaluation Fee. This gets applied to the cost of repair.

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

CTI On-Board IS 320FE Cryopump - Scope of Work

One year warranty repair service.

PTB Sales will perform the following:

1. Incoming Inspection

  • Attach Work Order to Cryopump
  • Picture taken of Cryopump's Configuration as received
  • S/W Version Recorded on Work Order

2. Complete teardown and disassembly of the pump

3. All parts are inspected and cleaned

  • Aqueous High Pressure Parts washer

4. Parts are dimensionally evaluated

5. Cryopump Rebuild

  • Vacuum Rebuild
    • Replace 15K Array
    • Replace 80K Condensing Array
    • Replace Radiation Shield
    • Replace 1st and 2nd Stage Temperature Sensors and wires
    • Replace all hardware
    • Verify/Replace heater operation
    • Verify/replace Vacuum Vessel
  • Refrigerator Rebuild
    • Cross Head Assembly
      • Replace O-rings, seals and bushings
      • Replace the Rocker Valve springs, lock nuts and gland
      • Replace Valves and Valve Stems
      • Replace Pressure Relief valve
      • Replace Scotch Yoke guide pin
      • Inspect/Replace Scotch Yoke
      • Inspect/Replace Rocker Arms/Assembly
    • Replace Supply and Return Aeroquip Connectors
    • Replace Dowel Pin for the Displacer cap nut
    • Inspect/Replace Crankshaft and Drive Assembly
    • Replace 1st and 2nd stage Displacers and Seals
  • Drive Motor Rebuild
    • Replace Bearings
    • Replace O-rings
    • Inspect/Replace Motor Shaft
    • Inspect/replace Motor Feedthrough connector
  • MFV (Multi-Function Valve Rebuild
    • Purge Valve assembly
      • Replace O-rings
      • Replace Diaphragms and diaphragm seats
      • Replace purge block
      • Verify/replace N2 connector
    • Rough Valve assembly
      • Replace O-rings
      • Verify/replace CDA connector
    • Inspect/replace valve relays

6. Module Rebuild

  • Customer Data Uploaded into Data Base
  • Battery Replaced
  • PCB's Inspected
  • Inspect/Replace Power Components > 5 years old
  • Inspect/Replace I/O Connectors (RS-232, USB, HDDB15, Power)

7. Sub Assembly Test

  • Module Test
    • Verify temperature readings, TC and valves functionality
    • Verify 1st stage and 2nd stage temperature control
    • Verify Intellipurge functionality
    • Verify motor RPM functionality
    • Verify RS-232, Network and Remote Display functionality
  • Motor Test
    • Verify torque
  • Refrigeration Load Test
    • Verify 1st and 2nd stage load performance
  • Set/Test Timing of Exhaust and Inlet Valves
  • Verify Diode Characterization
  • MFV Test
  • Verify Purge, Exhaust Purge and Rough valves operation
  • Leak check to 5x10-8 sccm

8. Final Test

  • Vacuum sided leaked checked to 1 X 1E-9 sccm
  • Helium circuit leaked checked to 5 x 10E-8 sccm
  • Perform two Full Regenerations
    • Time to complete a full regeneration is verified
    • Run pump in Temperature Control at 65K/13.5K for 45 minutes
  • Runtime hours reset to zero
  • Fast and Full Regeneration History Cleared

9. Final Quality Control Check List

  • Picture taken of cryopump’s as shipped configuration
  • Final Test Report attached to Cryopump
  • Protective covers  installed on all vacuum flanges
  • Protective covers installed on Power and I/O connectors
  • Package with accordance with DOT Standards

White Paper – Cause & Effect of Helium Contamination on a Cryogenic Vacuum System

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