803098359 XCMG GR2605 motor grader fully hydraulic steering gear

803098359 XCMG GR2605 motor grader fully hydraulic steering gear

Part Number: 803098359
Compatible Model: XCMG GR2605 Series Motor Grader
Product Positioning: A fully hydraulic steering control core customized specifically for the GR2605 motor grader, responsible for converting hydraulic energy into mechanical steering force, and controlling the precision and stability of the machine’s steering operation.

Key Technical Parameters

1. Pressure and Flow Performance
Rated Working Pressure: 16MPa
Maximum working pressure: 21MPa
Rated Flow Rate: 40L/min (suitable for the overall hydraulic system flow requirements)
Steering Sensitivity: ≤0.3s (steering signal response time)

2. Structure and Dimensions
Structure Type: Vane-type full hydraulic steering gear (with priority valve function)
Steering Displacement: 160mL/r
Installation Method: Flange mounting, conforming to original factory mounting hole standards
Output Shaft Specification: Splined shaft connection (suitable for steering linkage mechanism)

3. Material and Weather Resistance
Valve Body Material: High-strength aluminum alloy forging (anodized), tensile strength ≥320MPa
Valve Core Material: High-quality alloy structural steel (quenched + precision ground), excellent wear resistance
Seals: Imported fluororubber (FKM) sealing components, suitable for working environments from -40℃ to 120℃
Contamination Resistance Rating: ISO 18/15 (Suitable for hydraulic oil cleanliness requirements in construction machinery)

Core Functions and Application Scenarios

1. Main Functions
Steering Control: Precisely adjusts the flow and pressure of the steering hydraulic oil for flexible front wheel steering.
Priority Supply: Built-in priority valve ensures priority supply of hydraulic oil to the steering system, avoiding steering lag.
Overload Protection: Integrated relief valve prevents system overpressure damage and improves operational safety.
Manual Emergency: Supports emergency manual steering function to handle sudden hydraulic failures.

2. Applicable Working Conditions
Heavy-duty steering operations such as highway construction, mine stripping, and airport runway construction.
Complex working conditions involving multiple bumps, high-frequency steering, and long-distance continuous operation.
Harsh working environments with high and low temperatures, high dust levels, and mud and water erosion.

Product Advantages

Original Equipment Manufacturer (OEM) Compatibility: Fully matches the GR2605 steering system interface and control logic, requiring no modification for direct installation.

Precise Steering: Blade-type structure design, small steering clearance, rapid response, and smooth operation.

Heavy-duty and Durable: High-strength materials + Precision machining ensures outstanding impact and wear resistance, resulting in a long service life. Safe and reliable: Integrated overload protection and emergency steering function reduce operational risks. Stable and adaptable: Wide-temperature sealing design and anti-contamination structure enable continuous operation under harsh conditions.

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