Hydraulic Cylinder Refurbishment & Manufacturing Capabilities

At Action Hydraulics, every major stage of hydraulic cylinder refurbishment is performed in-house—from inspection and engineering through machining, hard chrome plating, assembly, and testing. This fully integrated approach gives us complete control over quality, reduces lead times, and allows us to repair or reproduce cylinders that many facilities cannot.

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Complete In-House Machining & Manufacturing

Unlike many repair shops that rely on outside vendors, we perform all critical machining in-house. This allows us to maintain tight quality control, respond quickly to unexpected issues during repairs, and manufacture components that may no longer be available.

Our machining capabilities include:

• Manufacturing new piston rods
• Manufacturing new cylinder barrels
• Machining new glands and pistons
• Fabricating custom wear rings, spacers, and internal components
• Repairing or manufacturing rod ends, clevises, eyes, and mounting hardware
• Precision boring, honing, threading, and milling
• Reverse engineering worn, damaged, or obsolete components without OEM drawings
• Manufacturing complete replacement hydraulic cylinders from samples when required

Every component is produced to precise tolerances using in-house equipment and experienced machinists, ensuring consistent quality and fit.

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In-House Hard Chrome Plating

Hard chrome plating is a critical step in restoring hydraulic cylinder rods. By performing this process in-house, we maintain full control over quality and eliminate delays associated with outside processing.

Our hard chrome services include:

• Stripping worn or damaged chrome
• Surface preparation and precision machining
• Industrial hard chrome plating
• Precision grinding to final diameter
• Polishing to required surface finish
• Inspection for coating thickness, adhesion, and dimensional accuracy

This controlled process produces piston rods with excellent wear resistance, corrosion protection, and long seal life, while ensuring consistent turnaround times and dependable results.

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What We Specialize In

• Cylinder Types: Large-bore, high-tonnage, multi-stage, and custom-built cylinders
• Applications: Injection molding, blow molding, extrusion, stamping presses, excavators, cranes, reach stackers, and material handlers
• Brands We Service Regularly: GMK™, Grove™, Liebherr™, Tadano™, Link-Belt™, Krupp™, Husky™, Demag™, Terex™, Manitowoc™, Kobelco™, Hyster™, Taylor™, Hitachi, Caterpillar, Parker, Harris™, and more

Why Choose Us?

• Full-Scope Repairs
  We don’t just reseal—we fully diagnose and address the root causes of cylinder failure to prevent repeat issues.
• Complete In-House Machining
  Worn or damaged components like pistons, glands, rods, and barrels are precision-machined from scratch in our facility. If a cylinder is beyond repair, we can reverse-engineer and manufacture an entirely new unit—no OEM drawings required.
• Engineered for Longevity
  Our repairs often exceed OEM specs, with improved tolerances and surface finishes where performance depends on it.
• Design-Driven Enhancements
  When possible, we recommend and implement design improvements to extend service life and make future repairs easier.

Our Process

1. Failure Diagnosis
   
   • Every cylinder is disassembled, cleaned, and inspected using precision equipment. We document wear patterns and damage to understand exactly what went wrong.
2. Reverse Engineering & Modifications
   
   • Using 3D modeling and CAD, we create detailed designs of worn or missing parts, and store this data for future service. We can replicate entire cylinders from samples if needed.
3. Precision Rebuild and Testing
   
   • Cylinders are rebuilt using high-grade components and then pressure-tested under simulated working conditions to ensure reliable performance in the field.