Dump Truck Hydraulic Cylinders

Why Choose SEIGO Replacement Cylinders for Dump Trucks?
Downtime in mining and construction costs thousands per hour. Our hydraulic cylinders are engineered to withstand the harshest environments, offering a cost-effective, high-durability alternative to OEM parts.

1. Wide Range of Compatibility
We manufacture drop-in replacement cylinders for major articulated and rigid frame dump trucks, including:

Komatsu: HD325, HD465, HD605, HD785, and the massive 930E / 830E series.

Caterpillar (CAT): 773, 777, 785, 789, and 793 series.

Hitachi & Terex: Full range of rigid hauler hoist and suspension cylinders.

2. Advanced Manufacturing Technology
Multi-Stage Telescopic Design: Our hoist cylinders feature precise machining to ensure smooth extension and retraction under maximum payload.

Anti-Corrosion Plating: Hard chrome plating and nickel-chrome overlay options protect against grit, dust, and moisture in mining pits.

Premium Sealing Systems: We use Hallite, Parker, or NOK seals to prevent oil bypass and internal leakage, extending the maintenance interval.

3. Applications
Mining: Iron ore, copper, and coal transport trucks.

Construction: Heavy earthmoving and infrastructure projects.

Quarrying: Aggregate and stone hauling.

Whether you need a single-acting telescopic cylinder for lifting or a nitrogen-charged suspension cylinder for ride dampening, SEIGO Machinery delivers ISO-certified quality with global shipping.