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Hydraulic cylinder repair · Rexroth
Rexroth Hydraulic Cylinder Repair in Fontana
When a Rexroth cylinder starts drifting, weeping at the gland or losing power under load, the machine behind it stops earning. At our Fontana shop we rebuild Rexroth cylinders for industrial and mobile hydraulic systems — full teardown, honest measurement of bore, rod and gland, and a rebuild that returns the cylinder to sealed, straight, full-pressure work. One shop, one crew, no middlemen: the cylinder is opened, measured and rebuilt under the same roof at 14166 Whittram Ave.
Hydraulic cylinder repair · Rexroth
What actually fails inside Rexroth cylinders
The failures we see on Rexroth cylinders follow a pattern: high-pressure seal wear, honed-bore scoring from contaminated oil, and rod chrome flaking under side load. Our bench work starts with a pressure test and a strip-down, then bore honing where the tube allows it, rod straightness checks on every rod, re-chroming or manufacture of replacement rods in-house, new seals and wear rings matched to the duty, and a final pressure test before the cylinder leaves. If a barrel is scored beyond honing or a rod is bent beyond saving, we say so plainly and price the manufacture — we cut and build complete cylinders in-house, machine new rods in all sizes and hard-chrome plate them, so a discontinued Rexroth cylinder is a machining job here, not a dead end.
Brands we serviceRexrothCaterpillarKomatsuJohn DeereBobcatCaseVolvo
Rexroth Hydraulic Cylinder Repair in Fontana · Fontana, CAMeasured first, quoted honestly, tested last
Every cylinder job is quoted from measurements taken at teardown — bore wear, rod condition, gland and piston wear — as written lines you can approve one by one. Regular hours are Monday to Friday, 6 AM to 5 PM, and our 24-hour rush and emergency service runs every day of the year for the cylinder that cannot wait until morning. Call John Clark's team on (800) 821-3404 or (949) 400-2937 for a free quote.
- Rexroth cylinder reseal, hone and full rebuild
- Rod re-chroming and new rod manufacture in all sizes
- Complete replacement cylinders manufactured in-house
- Pressure testing on every rebuilt cylinder before release
- Rush turnaround available 24 hours, 365 days
Our 8-step repair process
A clear path from the first call to a tested component or machine returned to work.
Inspection
Disassemble and evaluate the complete failure.
Photos & video
Document condition and findings for a clear repair conversation.
Repair quote
Define the recommended work and quote before proceeding.
Approval
Confirm scope, urgency and the practical path forward.
Manufacturing
Machine, weld, rebuild or reverse engineer required components.
Testing
Verify operation and workmanship before release.
Shipment
Return the completed component or equipment to service.
Frequently asked questions
Can you rebuild a discontinued Rexroth cylinder?
Yes. We manufacture rods, and can cut and build complete cylinders in-house, so a discontinued or obsolete cylinder can usually be rebuilt or reproduced from the original's measurements.
How long does a cylinder rebuild take?
A straightforward reseal and hone is typically a short bench job once measured; scored bores, bent rods or manufactured parts set the real timeline, and we quote it from the teardown, not a guess.
Do you offer emergency cylinder repair?
Yes — 24-hour rush and emergency service runs 365 days a year. Call (800) 821-3404 or (949) 400-2937.
Related services
Emergency breakdown? Call the 24-hour rush line.
(949) 400-2937Schedule service or open a repair order
Request a service call.
Include the make, model, symptoms, location, urgency and preferred service time. Your details open in a text to John so you can review them before sending.