APPLICATIONS
Advancing intelligent manufacturing and hydraulic innovation through independent R&D.
CONSTRUCTION &
ENGINEERING MACHINERY
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.
Excavator
Loader
Bulldozer
Road Roller
Grader
Truck-mounted Crane
Excavator
Loader
Road Roller
Road roller
Grader
Truck-mounted Crane
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.
