Excavator Hydraulic Cylinder 707-01-XZ750 209-63-03360 209-63-02372 for PC750 PC750-6 PC750-7

What Makes GLPARTS Hydraulic Cylinders Truly High-Performance?

At GLPARTS, we believe a truly high-quality hydraulic cylinder is not defined by appearance alone — but by the engineering that goes into every core component. From sealing systems to coating technology, every detail matters.

1. Multi-Layer Sealing System
The lifespan of a hydraulic cylinder largely depends on sealing quality (NOK and SKF Seal Kits). GLPARTS uses a multi-layer sealing system, where each component works together to ensure performance:

• Main Seal: Prevents oil leakage under high pressure
• Dust Seal: Keeps out dirt and debris
• Rod Seal: Ensures smooth movement and pressure stability
• Piston Seal: Maintains chamber separation and force direction

2. Integrated Cushioning System
To prevent mechanical shock at the end of a stroke, our cylinders feature built-in cushioning zones that absorb energy and slow the piston’s movement gradually.

• This reduces metal-on-metal impact
• Minimizes wear on internal components, and helps protect both the cylinder and the excavator arm or boom.

3. Reinforced Mechanical Design
From material to structure, every GLPARTS cylinder is built for high-load endurance:

• Honed tubes ensure smooth flow with minimal friction
• Alloy steel rods, hardened by high-frequency quenching, offer strength and fatigue resistance
• CNC-machined contact points provide precise fit and reduce vibration
• Wear rings and guide bushes (optional) help evenly distribute load and resist side forces

4. Advanced Coating Technology
To withstand moisture, mud, and chemicals, GLPARTS applies a multi-layer anti-corrosion coating:

• Hard chrome plating enhances surface hardness and prevents pitting
• Nickel coating is available for corrosive or coastal environments
• Pre-coating grinding and polishing ensure a smooth surface, reducing seal wear
• These treatments help extend rod and seal life while minimizing the risk of early failure and downtime.