803087366 XCMG GR2605 motor grader front wheel steering cylinder

803087366 XCMG GR2605 motor grader front wheel steering cylinder

The 803087366 front wheel steering cylinder is an original equipment steering actuator for the XCMG GR2605 grader. Its core function is to convert hydraulic system pressure into mechanical thrust, driving the front wheels to complete the steering action. It directly affects the overall steering sensitivity, smoothness of operation, and driving stability of the machine. Under harsh working conditions such as long-term heavy loads, frequent steering, and multiple bumps and vibrations, such as highway construction, mine stripping, airport runway construction, and For large-scale earthwork projects, it can stably output steering thrust and is not prone to leakage, jamming, thrust attenuation, and other failures. It effectively ensures the equipment can flexibly steer in narrow spaces and complex road conditions, improving operational safety and efficiency.

The steering cylinder uses a precision seamless steel pipe welded to a cylinder body, which undergoes overall quenching and tempering treatment, resulting in a tensile strength ≥600MPa and strong resistance to deformation. The piston is forged from high-strength aluminum alloy and equipped with a wear-resistant guide belt, resulting in low movement resistance and precise guidance. The piston rod is made of high-quality alloy structural steel, with a chrome-plated and polished surface, and a plating thickness ≥0.05mm, providing outstanding wear resistance and corrosion resistance. The sealing system uses imported fluororubber (FKM) combination seals, including a main seal, dust seal, and buffer seal, effectively preventing hydraulic oil leakage and impurity intrusion, ensuring stable sealing performance over long-term use. The cylinder has a built-in buffer device, minimizing impact at the end of steering and ensuring smooth operation. It perfectly matches the original vehicle’s steering valve assembly, central rotary joint, and steering tie rod, requiring no adjustment after installation and can directly replace the faulty original vehicle’s steering cylinder.

Compatible Hydraulic Components List

Front Wheel Steering System Execution Circuit
Steering Multi-Way Valve Control Branch
Central Rotary Joint Steering Hydraulic Circuit
Steering Tie Rod Connection Mechanism
Front Wheel Steering Knuckle Arm Assembly
Steering Hydraulic Accumulator Auxiliary Circuit
Steering System Pressure Protection Circuit

Core Parameters

Part Model: 803087366
Product Name: Front Wheel Steering Cylinder
Applicable Model: XCMG GR2605 Motor Grader
Structure: Double-acting Piston Steering Cylinder
Rated Working Pressure: 40MPa
Maximum working pressure: 45MPa
Cylinder Bore: 80mm
Rod Diameter: 45mm
Stroke: 320mm
Rated Thrust: 201kN (Rodless Chamber) / 113kN (Rod Chamber)
Operating Temperature Range: -45℃ to 125℃
Sealing type: Fluororubber (FKM) combination seal
Cylinder body material: Seamless 45# steel pipe (quenched and tempered)
Piston rod material: Alloy structural steel (chrome plated)
Features: Powerful thrust, precise steering, reliable sealing, wear-resistant and impact-resistant, smooth cushioning, original factory precise fit
Applicable working conditions: Heavy-duty flat-ground operation environments such as highways, mines, airports, and earthmoving

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