380603201 XCMG GR2605 motor grader rotary joint

380603201 XCMG GR2605 motor grader rotary joint

The 380603201 rotary joint is the original factory-designed central rotary joint for the XCMG GR2605 grader. It is primarily used for multi-circuit hydraulic oil transmission in the rotating parts of the chassis, ensuring continuous oil supply to the hydraulic system during relative rotation of the upper and lower frames. This directly affects the stability and response speed of functions such as articulated steering, blade movement, and braking. In harsh operating environments involving long-term heavy loads, high-frequency rotation, and exposure to dust and mud, such as highway construction, mining stripping, airport runway construction, and large-scale earthwork projects, it can stably withstand high-pressure impacts, effectively preventing leaks, jamming, and excessive wear, ensuring continuous equipment operation efficiency.

The rotary joint features a multi-channel, integrated precision structure. The housing and spindle are forged from high-strength alloy steel with a hardened surface, resulting in outstanding wear resistance and impact resistance. Internally, it employs a combination of multiple sets of high-pressure-specific seals. The sealing structure is reinforced, making it oil-resistant, aging-resistant, and resistant to high and low temperatures, ensuring leak-free operation under long-term high-pressure conditions. The internal flow channel design ensures smooth flow, minimal pressure loss, and low rotational resistance, allowing for flexible and smooth 360° rotation without jamming. It perfectly matches the original vehicle’s rotary support and hydraulic line interfaces, and can directly replace aged or damaged original vehicle rotary joints.

List of Compatible Hydraulic Components

Central Slewing Support Hydraulic Circuit
Articulated Steering Cylinder Supply Circuit
Tool Lifting and Swing Control Hydraulic Circuit
Brake Hydraulic Circuit
Hydraulic Valve Assembly to Actuator Slewing Circuit
Front Wheel Tilt Cylinder Control Circuit

Core Parameters

Part Model: 380603201
Product Name: Rotary Joint
Applicable Model: XCMG GR2605 Motor Grader
Structure: Multi-channel Central Slewing Type
Rated Working Pressure: 40MPa
Applicable Speed: Continuous Slewing 0～15rpm
Operating Temperature Range: -40℃ to 120℃
Sealing Type: Multi-stage High-Pressure Composite Seal
Number of Channels: Multiple Hydraulic Channels
Features: Reliable high-pressure sealing, smooth rotation, wear-resistant and impact-resistant, low pressure loss, precise original factory fit
Applicable Working Conditions: Heavy-duty leveling environments such as highways, mines, airports, and earthmoving.

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