318811347 flange assembly XCMG XE2000 excavator spare parts

XCMG XE2000 Excavator Flange Assembly (Part No. 318811347): The Core of Efficient Hydraulic Piping Connections

In the high-pressure hydraulic system of large mining excavators, flange assemblies are key connecting components for achieving precise pipeline connection and ensuring efficient hydraulic oil transmission. XCMG’s flange assembly (part no. 318811347), specially developed for the XE2000 excavator, utilizes high-precision manufacturing processes and heavy-duty resistance to become the “connection hub” for stable operation of the hydraulic system during heavy-duty operations, providing reliable pipeline connection solutions for engineering teams worldwide.

High-strength Alloy Forging, Ensuring Connection Strength

The XCMG XE2000 flange assembly (part no. 318811347) is integrally forged from high-quality alloy structural steel. Authoritative testing shows that its tensile strength reaches 650MPa, and its hardness is controlled between HB220-260, representing a 30% increase in strength compared to conventional flange assemblies in the industry. Through XCMG’s proprietary “isothermal forging + overall heat treatment” process, the flange’s internal grain structure is uniform and dense, making it less prone to cracking or deformation under high-pressure hydraulic impact.

Each component undergoes four rigorous tests: hydrostatic testing (withstanding 40MPa pressure without leakage), tensile strength testing, full flatness inspection (error ≤0.03mm/m), and salt spray testing (1500 hours without rust). Actual test data shows that during 3000 hours of continuous heavy-duty operation, the connection strength attenuation rate is less than 3%, and its service life is 120% longer than ordinary flange components.

Precision sealing design prevents leakage risks

To meet the sealing requirements of the XE2000 excavator’s high-pressure hydraulic system, the flange component adopts a dual sealing structure of “metal sealing surface + elastic sealing ring”. The sealing groove is inlaid with a high-pressure fluororubber sealing ring with a Shore hardness of 85±3, capable of withstanding extreme temperature changes from -40℃ to 150℃, and showing no aging or deformation under long-term working pressure of 35MPa. The sealing ring and flange groove adopt an interference fit design, with a joint strength of 3MPa, completely solving the problem of easy detachment of traditional flange sealing rings.

The flange sealing surface is precision ground to a roughness of Ra0.8μm, with a flatness error controlled within 0.02mm/m, ensuring a perfect fit with the mating flange. The bolt holes are CNC bored to an IT7 tolerance grade, with a hole position positioning accuracy of ±0.05mm. Combined with original high-strength bolts (grade 10.9), a rigid connection with uniform stress is achieved, improving sealing reliability by 50% compared to traditional flanges.

Adaptable to all operating conditions, ensuring system stability

This flange assembly is specifically designed for the complex operating environments of the XE2000 excavator, maintaining stable performance in extreme environments such as high-altitude mines (above 5000 meters), humid and hot coastal construction sites, and dusty quarries. Its surface utilizes a composite anti-corrosion process of “zinc-nickel alloy plating + ceramic sealing,” offering four times the corrosion resistance of ordinary galvanized flanges and maintaining structural integrity even in acidic and alkaline environments.

Actual engineering application data shows that XE2000 excavators equipped with this assembly experience an 85% reduction in hydraulic pipeline connection leakage failures and a 90% reduction in downtime due to connection problems. In heavy-duty crushing operations in large mines, the flange assembly effectively absorbs hydraulic shocks, reducing the dynamic pressure fluctuation amplitude of the pipeline system by 45%, significantly reducing the risk of pipeline fatigue damage.

Original Factory Precision Fit, Enhanced System Efficiency

As a core original factory connecting component from XCMG, the flange assembly (part number 318811347) achieves 100% precise matching with the hydraulic pipeline dimensions and pressure rating of the XE2000 excavator, perfectly conforming to the design requirements of the entire machine’s hydraulic system. The flange thickness has been optimized through finite element analysis, reducing its weight by 15% while meeting strength requirements, thus reducing the additional load on pipeline connections.

The installation process employs a “modular quick-installation” design, using locating pins and specialized installation tools, improving installation efficiency by 60% compared to traditional flanges, and ensuring sealing accuracy without on-site repairs. Data shows that using the original factory flange assembly can reduce energy loss in the XE2000 excavator’s hydraulic system by 8%, increase overall operating efficiency by 10%, and extend the overhaul cycle of hydraulic components by 70%. Choosing the XCMG XE2000 flange assembly (part number 318811347) means selecting a connection safety guarantee for your heavy equipment that has been proven under extreme working conditions. This ensures that the high-pressure hydraulic system maintains efficient and stable operation during high-intensity work, creating greater economic benefits and equipment reliability for your project.

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318811347 flange assembly

1 803162107 2 FLANGE PLATE
2 805139879 4 SCREW M12×45 GB/T70.1-2008
3 804411417 1 FLANGE SEALING

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