CM
Cylinder Maintenance
Co., Inc. · Riverside, CA
Our services

Full-service cylinder shop.

From DOT requalification to ground-up restoration, we handle the whole lifecycle of your high-pressure cylinders in one Riverside facility.

Hydrostatic Testing
Service 01

Hydrostatic Testing

Every cylinder we requalify gets the same disciplined process: inspect, test, document, stamp. No corners. No exceptions.

  1. 01Visual Inspection
    Internal & external inspection per DOT/CGA standards.
  2. 02Water-Jacket Test
    High-pressure expansion test with calibrated equipment.
  3. 03Stamp & Certify
    Date-stamped, logged, and returned ready for service.
DOT Certified Calibrated Equipment Documented
Cylinder Refurbishment
Service 02

Cylinder Refurbishment

Tired-looking cylinders go in. Pristine, fully-serviced cylinders come out. We restore the metal, the valves, and the finish.

  1. 01Strip & Inspect
    Disassembly, valve removal, deep inspection.
  2. 02Blast & Repair
    Sandblasting, surface prep, valve repair or replacement.
  3. 03Paint & Reassemble
    Industrial coating, color-coding, return-to-service.
DOT Certified Calibrated Equipment Documented

Need both? We do both.

Most customers send us cylinders for testing and walk away with a complete refurbishment in the same trip.

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