Ultra-High Pressure Heavy-Duty Structure
The barrel is fashioned from high-yield alloy steel, either forged or heavy-wall cold-drawn and quenched/tempered, with 100% UT on critical welds. The piston rod is hard chrome plated and precision polished. The design withstands continuous 35 MPa pressure and severe track impacts, achieving a fatigue life exceeding 1.2 million tension cycles.
High Side-Load Capacity
Enlarged rod diameter and extended guide bushing length, combined with wear-resistant guiding bands, effectively absorb lateral forces from track misalignment, preventing rod bending and scoring.
Long-Life Sealing & Low Friction
The main sealing system consists of extrusion-resistant polyurethane/reinforced PTFE, with low-friction support rings. A heavy-duty metal wiper ring keeps out mud, stones, and ice. This ensures stable performance in open-pit mines and frozen ground.
Full-Spectrum Corrosion Protection
Multiple rod surface finishes are available: hard chrome, Ni/Cr alloy plating, laser cladding, ceramic thermal spray, QPQ, and zinc-nickel plating, resisting high humidity, acidic mine water, and coastal salt spray.
Integrated Smart Cushioning & Adjustment
A built-in adjustable cushioning valve allows the operator to fine-tune cushioning characteristics according to track tension and ride feel, eliminating rigid impact and reducing wear on the track chain and final drive. Pre-installed pressure test ports allow real-time monitoring.
Safety Integration & Easy Service
Large-diameter dual oil ports can be specified for rapid fill/drain. Integrated hydraulic locks and counterbalance valves lock cylinder tension even if a hose bursts, preventing sudden track slack. A grease filling port is reserved on the barrel to suit traditional maintenance practices.
Maintenance-Free Pivots & Custom Mounting
Self-lubricating composite bushings are standard in both rod-end and base-end forgings, eliminating greasing and lasting beyond the machine’s overhaul cycle. Spherical bearings and custom mounting flanges or pin dimensions are available for full interchangeability.
