Hydraulic cylinder solutions for excavators, loaders, graders and truck-mounted cranes—engineered for high-pressure, high-load and demanding construction duty cycles.
Covers mainstream construction equipment including excavators, wheel loaders, bulldozers, road rollers, motor graders and truck-mounted cranes. Hydraulic cylinders actuate the boom, arm, bucket, steering and lifting movements, directly determining the machine's power density and productivity.
Excavators
Wheel Loaders
Motor Graders
Truck-mounted Cranes
Excavators
Wheel Loaders
Motor Graders
Truck-mounted Cranes
KEY CHALLENGES
High Pressure & Flow
Alternating dust, mud, high and low temperatures stress the wiper seal and rod coating.
Harsh Environment
Counterbalance or pilot-operated check valves are mandatory to lock under hose burst.
High Side Load
Boom and arm cylinders absorb heavy side impacts during digging, accelerating bushing wear.
Long Service Life
Customers expect 8,000+ hour overhaul cycles — cylinders must not be the weak link.
Oem Compliance
Drawings, pressure tests and paint specs must match major OEMs (SANY, XCMG, CAT-tier suppliers, etc.).
OUR SOLUTIONS
Barrels upgraded to 27SiMn / 30CrMnSiA, welded by SAW + robotic welding, 100% UT-inspected.
Piston rods in 42CrMo Q&T with nickel-chrome composite plating, salt-spray ≥ 720h for shock + corrosion resistance.
Gland and piston use QSn7-0.2 tin-bronze / cast-iron inserts with DU composite bushings to withstand side loads.
Double-lip wiper + scraper ring for dusty conditions.
Entire range validated at 35MPa; flanges, eyes, pin interfaces and paint colors customizable to OEM drawings.
