318810931 flange blocking plate XCMG XE2000 excavator spare parts

XCMG XE2000 Excavator Flange Baffle (Part No. 318810931): The Core of Hydraulic System Sealing Protection

In the hydraulic pipeline connection points of large mining excavators, flange baffles are key protective components that ensure sealing performance and prevent contaminant intrusion. XCMG’s flange baffle (part no. 318810931), specially developed for the XE2000 excavator, utilizes high-precision machining and materials resistant to extreme working conditions to become a “protective barrier” for the safe operation of the hydraulic system during heavy-duty operations, providing a reliable sealing protection solution for engineering teams worldwide.

High-strength alloy base material, solid foundation for protection

The XCMG XE2000 flange baffle (part no. 318810931) is precision-machined from high-quality low-carbon alloy steel plate. The base material has a tensile strength of 550MPa and a hardness controlled between HB180-220, combining high strength with excellent machinability. Through XCMG’s proprietary “precision milling + surface hardening” process, the flatness error of the baffle is controlled within 0.03mm/m, and the surface roughness reaches Ra1.6μm, providing a solid foundation for efficient sealing.

Each baffle undergoes rigorous quality testing: full flatness inspection ensures sealing fit accuracy, pressure testing (withstanding 35MPa hydraulic pressure without leakage) verifies sealing reliability, and salt spray testing (1000 hours without rust) guarantees corrosion resistance. Actual test data shows that after 2000 hours of continuous heavy-duty operation, the sealing performance degradation rate of this baffle is less than 3%, and its service life is extended by 80% compared to ordinary baffles.

Refined Sealing Design, Preventing Leakage Risks

Addressing the sealing requirements of the XE2000 excavator’s high-pressure hydraulic system, the flange baffle employs a composite sealing structure design. The sealing surface is inlaid with a high-pressure resistant nitrile rubber sealing ring with a Shore hardness of 80±5 degrees, capable of withstanding temperature changes from -30℃ to 120℃, and exhibiting no permanent deformation under high-pressure conditions. The sealing ring and baffle undergo an integrated vulcanization process, achieving a bonding strength of 2MPa, avoiding the sealing ring detachment problem caused by traditional assembly methods.

The baffle bolt holes are precision-machined, with a hole diameter tolerance grade of IT8 and a hole position tolerance controlled within ±0.1mm, ensuring precise alignment with the flange surface. A unique anti-misalignment design (with guide pins) prevents directional deviations during installation, achieving a 100% sealing assembly qualification rate and improving installation efficiency by 30% compared to traditional baffles.

Adaptable to all operating conditions, ensuring system cleanliness

This flange baffle is specifically designed for the complex operating environments of the XE2000 excavator, maintaining stable sealing performance in extreme environments such as dusty mines, high-humidity construction sites, and high-temperature deserts. The baffle edges are rounded, eliminating sharp corners and effectively preventing damage during pipe connections while reducing dead zones for contaminant accumulation.

Actual engineering application data shows that XE2000 excavators equipped with this baffle experience a 75% reduction in hydraulic system leakage failure rate and a 60% reduction in valve wear due to contaminant intrusion. In heavy-duty operations in large mines, the baffle effectively prevents hydraulic oil from contacting external contaminants, maintaining the hydraulic oil cleanliness level within NAS 8 and significantly extending the service life of hydraulic components.

Original Factory Precision Fit, Enhancing System Reliability

As a core original factory sealing component from XCMG, the flange baffle (part number 318810931) achieves 100% precise matching with the hydraulic pipeline flange dimensions of the XE2000 excavator, perfectly conforming to the pressure rating and sealing requirements of the entire machine’s hydraulic system. The baffle thickness has been optimized through finite element analysis, reducing its weight by 15% while meeting strength requirements, thus lowering the additional load on pipeline connections.

The installation process adopts a “plug-and-play” design, requiring no on-site repairs. Combined with original factory high-strength bolts (tensile strength grade 8.8), the installation torque control accuracy reaches ±5%. Data shows that using the original factory flange baffle can reduce leakage maintenance costs of the XE2000 excavator’s hydraulic system by 60% and extend the overhaul cycle of hydraulic components by 50%. Choosing the XCMG XE2000 flange baffle (part number 318810931) means selecting a sealing protection system for your heavy equipment that has been proven under extreme working conditions. This ensures that the high-pressure hydraulic system maintains zero-leakage operation during high-intensity work, creating higher equipment reliability and economic benefits for your project.

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318810931 flange blocking plate

1 318811361 1 FLANGE BLOCKING PLATE
2 805139984 4 SCREW M12×60 GB/T70.1-2008
3 804411417 1 FLANGE SEALING

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