Hydraulic
Cylinder
Repair
Why General Engineering?
The Standard for Hydraulic Excellence
OEM-Grade Precision
Every rebuild uses high-grade seals, rods, and components machined to tight tolerances. We test every cylinder under full operating pressure before it leaves our shop.
40 Plus Years of Expertise
Since 1978, General Engineering has been the region's trusted name for hydraulic repair. We've seen and solved virtually every failure mode imaginable.
Fast Turnaround
Standard repairs complete in 3–5 business days. Rush 24-hour service available for critical breakdowns. We know production stops for no one.
On-Site & In-Shop
Can't bring the machine to us? Our field technicians travel to your facility across Chino, LA, the Inland Empire, and all of Southern California.
Warranty Backed
All cylinder repairs carry our workmanship warranty. If it fails due to our repair, we fix it period. That's our commitment to quality craftsmanship.
Competitive Pricing
Repair costs significantly less than replacement. Our transparent quoting process means no surprises you know exactly what you're paying before we begin.
ENGINEERING CAPABILITIES
Mastery in Heavy Machinery Refurbishing
High-Precision Resurfacing
Warranty Backed
All cylinder repairs carry our workmanship warranty. If it fails due to our repair, we fix it period. That's our commitment to quality craftsmanship.
Custom Fab
Precision welding and fabrication for components that are beyond traditional repair limits.
Services Offered
Complete Cylinder Services
Seal Replacement & Rebuilds
Worn or damaged seals are the #1 cause of hydraulic cylinder failure. We replace all seals, O-rings, backup rings, and wiper seals with premium-grade components rated for your cylinder.
- Piston seals, rod seals, buffer seals, wiper seals
- High-pressure polyurethane & PTFE options
- Compatible with all hydraulic fluids
- Temperature ratings up to 250°F
Piston Rod Repair & Re-Chroming
Scored, corroded, or bent piston rods compromise sealing and cylinder performance. We offer rod straightening, chrome stripping and replating, and grinding to restore surface finish to the thousandth.
- Hard chrome plating restoration
- Rod straightening (within .001" per foot)
- Pit and scratch repair
- Manufacturing of new rods when needed
Barrel & Bore Restoration
Damaged cylinder bores cause erratic performance and accelerated seal wear. Our honing equipment restores bore geometry to exact specifications, ensuring optimal seal contact and long service life.
- Precision honing to OEM tolerances
- Crosshatch finish for proper oil retention
- Rust and scoring removal
- Replacement barrels(re-tube) for unrepairable units
Full Remanufacturing
- Complete disassembly and component replacement
- Meets or exceeds original manufacturer specs
- Documented pressure test certification available
- Often 40–60% less than new cylinder cost
Custom Cylinder Fabrication
Can’t find an exact replacement? We fabricate custom hydraulic cylinders from scratch to your specifications. From 1″ bore to 21″+ bore cylinders, our machining capabilities cover the full range of industrial applications.
- Designed from your specs or reverse-engineered
- Bore sizes from 1" to 20"+ diameter
- Various mounting styles and end configurations
- Special alloys for corrosive environments
Emergency Field Repair
- Available 24/7 for critical breakdowns
- Fully equipped service vehicle
- Serving LA, San Bernardino & Orange County
- Same-day response for emergency calls