803306812 XCMG GR2605 motor grader hose assembly

803306812 XCMG GR2605 motor grader hose assembly

Core Product Advantages

Specifically designed and developed for the XCMG GR2605 motor grader, this product perfectly matches the model’s 194kW rated power output and load-sensing hydraulic system operating conditions. It precisely meets the stringent requirements of dusty, high-vibration, and long-term continuous operation in deep mining, heavy-duty open-pit mining, and highway construction. Utilizing a five-layer high-density galvanized steel wire winding reinforcement design, its pressure resistance is improved by 38% compared to the traditional four-layer structure. The rated working pressure reaches 37MPa, with a 1.5 times safety margin (compatible with the main unit’s maximum working pressure of 24.5MPa). It has passed the ISO 18752 dynamic pressure standard 580,000 pulse cycle test without leakage, effectively resisting high-frequency pressure impacts and pulse loads in the hydraulic system, eliminating the risk of pipe bulging and bursting. The inner rubber layer is made of oil-resistant and anti-aging special synthetic rubber. After immersion at 70℃ for 72 hours, the swelling rate is ≤1.7%, which can withstand the corrosion of various media such as petroleum-based hydraulic oil, mineral oil-based hydraulic media, water glycol and phosphate ester flame-retardant hydraulic oil for a long time. The outer rubber layer adopts a flame-retardant and anti-static formula with a surface resistance of ≤3×10^8Ω, which meets the explosion-proof safety requirements for mining. At the same time, a nano wear-resistant coating and anti-ultraviolet components are added, and the service life in harsh outdoor environments reaches more than 9.5 years. It is suitable for friction scenarios with alternating high and low temperatures of -40℃ to 118℃ and complex terrain. The connector adopts an integrated cold-pressing molding process, with the metal sleeve and hose tightly interlocking, achieving a sealing pressure of 1.5 times the working pressure, completely solving the slippage and leakage problems of traditional connection methods; the standardized interface strictly complies with XCMG’s original factory installation specifications, supports multi-angle assembly of 0°/45°/90°/180°, adapts to the optimized compact pipeline layout of the whole machine, can be quickly integrated without additional modification, is easy to maintain and has strong compatibility, greatly reduces equipment downtime losses, and meets the high reliability and mining safety standards of XCMG hydraulic accessories.

Key Technical Parameters

Compatible Model: XCMG GR2605 Mining Grader
Product Model: 803306812
Standards: MT/T98-2006 Mining Hoses Standard + GB/T 44072.1-2024 Hydraulic Hoses Assembly Technical Requirements + AQ-1043 Flame Retardant and Antistatic Standard + ISO 18752 Dynamic Pressure Specification + SAE/ISO Standard
Structure Type: Five-layer Galvanized Steel Wire Spiral Reinforced
Rated Working Pressure: 37MPa (Compatible with main unit’s maximum working pressure of 24.5MPa, sufficient safety redundancy)
Test Pressure: 55.5MPa (1.5 times rated pressure test to ensure safe use)
Burst Pressure: 148MPa (Complies with industry standard 4) (Double rated pressure standard, extreme working condition safety assurance) Pulse test: Passes ISO 18752 standard 580,000 dynamic pressure cycles without leakage Applicable media: Petroleum-based hydraulic oil, mineral oil-based hydraulic media, water glycol, phosphate ester flame-retardant hydraulic oil, water-oil emulsion (0℃~85℃ water environment) Operating temperature: -40℃~118℃ (high temperature colloid softening rate ≤2.5%, low temperature -40℃ bending without cracking) Minimum bending radius: 78mm (adapts to complex pipeline layout of the whole machine, not easy to break or age with frequent bending) Nominal diameter specification: Designed according to XCMG original (adapts to the flow requirements of the host load sensing hydraulic system) Core functions: Efficient hydraulic medium transmission, pressure shock buffering, leak-proof sealing, flame retardant and antistatic, wear-resistant and corrosion-resistant protection, multi-media compatibility Safety characteristics: Surface resistance ≤3×10^8Ω, meets the explosion-proof safety requirements of mining, passes MA Mining Product Safety Certification
Connector Type: Crimped connector (supports metric/imperial/American threads, compatible with 24° tapered O-ring seal)
Installation Method: Integrated installation of hydraulic system piping (fully matches the original machine interface size and mounting position, supports multi-angle assembly)

Application Scenarios

Suitable for XCMG GR2605 graders in deep mining, heavy-duty open-pit mining operations, highway construction, large-scale infrastructure projects, and other scenarios requiring soil leveling, slope trimming, heavy-load road surface compaction, and complex terrain operations. Especially suitable for harsh mining conditions involving high-frequency oscillation, frequent pipe bends, severe vibration, and flammable/explosive elements. As the “safe power blood vessel” of the hydraulic system, its five-layer steel wire winding structure and efficient sealing design perfectly match the host load sensing hydraulic system, providing stable and leak-free power transmission for key hydraulic components such as the grader’s blade drive, steering system, and braking circuit. At the same time, its flame-retardant and anti-static properties eliminate safety hazards in mining environments, effectively avoiding system paralysis and safety accidents caused by pipeline failures, significantly improving operational continuity and safety, and helping the whole machine maintain efficient and stable operation under complex and harsh working conditions. It is an original factory-grade safety adapter part for the maintenance and replacement of the XCMG GR2605 grader hydraulic system.

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