803090598 XCMG GR2605 motor grader front wheel tilting cylinder

803090598 XCMG GR2605 motor grader front wheel tilting cylinder​

The XCMG GR2605 grader’s front wheel tilt cylinder is a key actuator in the machine’s front wheel steering tilt system. Manufactured strictly according to XCMG’s original design standards, GB/T 15242.1 hydraulic cylinder technical requirements, and engineering machinery hydraulic component protection specifications, it is specifically customized for the GR2605 grader’s front wheel tilt angle adjustment function. It is perfectly suited for high-load, high-vibration, and dusty extreme scenarios such as highway construction and maintenance, airport runway grading, open-pit mine stripping, and large-scale water conservancy earthwork filling. As the “power execution core” of the front wheel tilt action, it converts hydraulic system pressure into mechanical thrust, achieving precise tilt adjustment within a ±15° range. This ensures the grader’s stability and ground flatness during operation, preventing operational errors or equipment malfunctions caused by cylinder leakage or extension/retraction jamming. It is a high-quality original factory replacement part for GR2605 grader cylinder leaks, piston rod wear, seal failure, and slow action, eliminating the need for piecemeal parts.

The front wheel tilting cylinder adopts a high-strength alloy cylinder structure: the cylinder body is precision machined from 27SiMn seamless steel pipe, with an inner diameter tolerance ≤ ±0.02mm. The inner wall is honed (roughness Ra≤0.4μm), and the compressive strength is ≥31.5MPa. It can withstand the high-pressure hydraulic impact during operation and remains structurally stable under 25g peak vibration conditions, with no risk of deformation or bursting. The piston rod is made of 45# quenched and tempered steel with chrome plating. The chrome plating layer thickness is ≥0.05mm, the hardness is ≥HRC55, the surface is smooth and wear-resistant, and the corrosion resistance meets the GB/T 10125 500-hour salt spray test standard, effectively resisting mud, water, and dust erosion and avoiding seal failure caused by wear.

The hydraulic cylinder sealing system employs a multi-layered leak-proof design: equipped with imported polyurethane (PU) composite seals, including a main seal, dust seal, and guide ring, with a sealing pressure ≥31.5MPa, effectively preventing internal leakage of hydraulic oil and intrusion of external dust and mud. The seals have a temperature resistance range of -40℃ to 120℃, and exhibit no swelling or aging under long-term high-pressure operation, with a service life ≥8000 hours. A stainless steel dust cover is fitted at the piston rod root to further block large particles of dust and foreign objects, preventing scratches on the piston rod surface and ensuring long-term stable sealing performance. The cylinder joint adopts a spherical sealing structure, combined with a high-pressure sealing ring, ensuring reliable connection and sealing with no risk of leakage.

The hydraulic cylinder transmission system features precise control characteristics: the piston is formed using an integrated forging process and is rigidly connected to the piston rod, with a transmission clearance of ≤0.03mm. The extension and retraction stroke is precisely controlled (customized stroke 200mm), and the extension and retraction speed is uniform (50-80mm/s), without crawling or vibration, ensuring precise and controllable adjustment of the front wheel tilt angle. A built-in buffer mechanism achieves smooth deceleration at the end of the extension and retraction stroke, reducing impact load damage to the hydraulic cylinder and front wheel mechanism, and extending overall service life. The hydraulic cylinder inlet and outlet ports use standardized threaded interfaces (M27×2), precisely matching the original vehicle’s hydraulic lines, resulting in low hydraulic oil flow resistance and a pressure loss of ≤0.5MPa.

The product’s mounting holes, pin dimensions, and connector specifications are precisely matched 1:1 to the original XCMG GR2605 front wheel tilting system, with a hole tolerance of ±0.03mm. No additional processing or modification is required; it can be directly connected to the front wheel steering knuckle and the frame mounting bracket. The entire cylinder has undergone a pressure resistance test at twice the rated pressure (63MPa), with no leakage or permanent deformation. The installation torque is ≤35N・m. Two people using specialized tools can complete the entire disassembly and installation in 30 minutes. After installation, it perfectly matches the movement trajectory of the front wheel mechanism and does not affect the coordination of steering and tilting actions.

This front wheel tilting cylinder has passed multiple authoritative tests and certifications: GB/T 15242.1 hydraulic cylinder technical requirements test, 8000-hour fatigue life test (no leakage, no seal failure), 500-hour salt spray + UV aging test (no rust on metal parts), and wide temperature environment test from -40℃ to 80℃ (normal extension and retraction movement); its sealing performance has passed the hydraulic cylinder static sealing test, with a pressure drop ≤0.3MPa after 24 hours of pressure holding; it is compatible with XCMG original hydraulic oil (anti-wear hydraulic oil L-HM 46) and has excellent compatibility with hydraulic systems.

Core Technical Parameters

Part Model: 803090598
Part Name: Front Wheel Tilting Cylinder (Complete Set of High-Pressure Hydraulic Actuator Cylinders)
Applicable Model: XCMG GR2605 motor grader
Compatible Components: GR2605 front wheel steering and tilting system, hydraulic control system
Material: 27SiMn alloy cylinder body, 45# chrome-plated piston rod, imported PU combination seals, stainless steel dust cover, high-pressure connector
Process: Precision honing, chrome-plated anti-corrosion treatment, integrated forged piston, multi-seal assembly, pressure resistance test calibration
Core Parameters: Rated pressure 31.5MPa, telescopic stroke 200mm, tilt angle ±15°, cylinder diameter 63mm, rod diameter 35mm, protection rating IP65, temperature range -40℃ to 120℃
Safety Certification: GB/T 15242.1 Hydraulic Cylinder Standard, ISO 6020/2 Safety Standard for Hydraulic Cylinders in Engineering Machinery
Features: High-pressure vibration resistance, multiple seals for leak prevention, precise telescopic control, wear-resistant and corrosion-resistant, original factory precise fit
Functions: Front wheel tilt angle adjustment, ensuring flatness of operation, withstanding high-pressure hydraulic shock, resisting harsh environmental corrosion, and improving operational flexibility in conjunction with the steering system

Core Advantages

Original factory 1:1 mold customization, no need to purchase individual parts, direct replacement; high-strength alloy cylinder body + chrome-plated piston rod, wear-resistant, vibration-resistant, and long service life; imported combination seals + multiple leak-proof design, completely solving leakage problems; precise telescopic control, front wheel tilt angle adjustment error ≤ ±0.5°; compatible with high-pressure hydraulic systems, excellent impact resistance; 1:1 precise fit to the original vehicle system, convenient installation, significantly reducing downtime maintenance time after cylinder failure, ensuring operational efficiency and flatness.

Get a personalized quote now

1. 803090598 Front Wheel Tilt Cylinder
2. 803089855 Blade Lifting Cylinder
3. 804000940 Blade Swing Cylinder
4. 803380612 Hose Assembly
5. 803198745 Hose Assembly
6. 803082299 Blade Extension Cylinder
7. 803081220 Shovel Angle Changing Cylinder
8. 380603199 Left Multi-way Valve Connector Installation
9. 803077608 Right Articulated Steering Cylinder
10. 380603200 Right Multi-way Valve Connector Installation
11. 803083235 Articulated Steering Cylinder

*For other spare parts procurement needs, please contact us!