Hydraulic Pressure Cylinder for Motor Graders

Motor graders require robust and precise hydraulic systems to perform critical tasks such as leveling, grading, and sloping. The hydraulic pressure cylinder for motor graders is a key component that ensures accurate control and powerful performance in demanding environments. Designed to withstand high loads and continuous operation, these cylinders are engineered for durability and efficiency.

The cylinder barrel, typically made from high-strength steel such as ST52, SAE1045, or SAE4140, is selected based on internal diameter and operating pressure. Tubes are precision-bored and honed to a fine surface finish (Ra 0.2–0.4) and may be chrome-plated for enhanced wear resistance. The piston rod, often constructed from materials like SAE4140 or 42CrMo4, undergoes surface hardening to HRC 55–60 and is chrome-plated with a minimum thickness of 20–50 microns for superior corrosion and abrasion resistance.

Sealing systems incorporate high-quality brands like Parker or Merkel to ensure leak-free operation and long service life. Each hydraulic pressure cylinder for motor graders is rigorously tested, with welded joints inspected via ultrasonic testing to guarantee structural integrity and lifetime leak-proof performance.

These cylinders support design pressures up to 700 bar and strokes ranging from 50 mm to 16,000 mm, making them suitable for the variable and intense demands of motor grader applications. Supported by bearings from reputable manufacturers such as SKF or LONGXI, they deliver smooth and reliable operation.