Product Overview
Excavator boom, arm and bucket cylinders live in the harshest duty hydraulic cylinders see: full load at full extension, side-load abuse, shock spikes from bucket strikes, and contamination from open-site maintenance. Welded construction — tube and end caps permanently joined — gives the compactness and ruggedness the envelope demands at the 20–35 MPa system pressures typical of excavator hydraulics. Critical details separate adequate cylinders from excavator-grade ones: induction-hardened chrome-plated rods that resist the dents which seed seal failure, cushioning or deceleration provisions on high-inertia axes, and seal stacks designed for pressure spikes and contaminated oil rather than clean test-rig fluid. Manufacturers listed here build to machine drawings or failed-sample reverse engineering, welding with documented WPS/PQR, and test every unit — hydrostatic pressure, leakage, and full-stroke function — under serialized records that support warranty and fleet tracking.
OEM & Customization Capabilities
- Reverse Engineering – cylinders rebuilt from worn or broken samples with material upgrades.
- Aftermarket Coverage – cross-reference programs for major excavator model lines.
- Upgraded Sealing – premium seal stacks for abrasive or high-cycle applications beyond stock spec.
Industry Applications
- Hydraulic Cylinders
- Construction & Mining Equipment