860204792 hold washer XCMG XE2000 excavator spare parts

XCMG XE2000 Mining Excavator Fixed Washer (860204790): Precision Guarantee for Secure Connections in Mining Equipment

In core mining regions worldwide, such as Indonesia, the Democratic Republic of Congo, and Brazil, the XCMG XE2000 mining excavator, with its massive 12-cubic-meter bucket capacity and over 93% mobility, has become a core piece of equipment for efficient mining operations. In the connection system of this “mining giant,” the fixed washer with part number 860204790 acts as a “pressure distribution hub,” undertaking the tasks of load distribution and anti-loosening sealing of bolt connections. It is a crucial basic spare part for ensuring the stable connection of key components and preventing vibration-induced loosening.

Original Factory Precise Fit, Perfectly Matching Connection Requirements

The XCMG XE2000 fixed washer (860204790) was specifically designed by the XCMG R&D team for the bolt specifications and stress characteristics of various connection points on the XE2000, and has undergone pressure distribution simulation and vibration testing verification. Its inner diameter accuracy is controlled within ±0.02mm, outer diameter tolerance ≤0.1mm, and thickness error ≤0.03mm, perfectly matching the bolt specifications, flange face, or connecting seat dimensions. Whether in the fixed connection of hydraulic pipeline flanges or the tightening of structural bolts, it achieves precise fit, completely eliminating uneven stress or sealing failure caused by dimensional deviations, and constructing a “uniformly stressed” fastening foundation for the connection.

High-strength material and craftsmanship, durable core under extreme working conditions

Made of high-strength spring steel (65Mn) through precision stamping, after quenching and tempering treatment, its hardness reaches HRC42-48, possessing excellent elastic deformation capacity and fatigue resistance. The surface undergoes environmentally friendly zinc plating passivation treatment, with a coating thickness ≥8μm, and salt spray testing exceeding 72 hours. In high-humidity, dusty mining environments, its corrosion resistance is more than 35% higher than ordinary gaskets. The gasket edges are smoothly chamfered to prevent scratches on seals or connecting surfaces during installation, ensuring the integrity of the connection.

Optimized structural design enhances tightening and sealing performance

The gasket features a wave-like elastic structure design, which produces uniform elastic deformation under bolt preload, effectively distributing bolt load and ensuring more even stress distribution on the connecting surface, reducing localized stress concentration. Its surface is precision polished, with a flatness error ≤0.02mm/m, ensuring a tight fit with the connecting surface. This enhances bolt anti-loosening performance and improves the sealing performance of the connection. In the high-frequency vibration environment of the XE2000 excavator, it can withstand instantaneous impact loads up to 500MPa without plastic deformation, effectively preventing bolt loosening and ensuring the connection stability of critical components.

For mining companies seeking efficient operation, the XCMG XE2000 fixed gasket (860204790) is not only a high-quality basic spare part but also a “foundation” for ensuring the long-term stability of equipment connection systems. Choosing genuine parts means choosing reliability that perfectly matches the connection requirements of the XE2000 excavator, providing a solid connection guarantee for efficient mining operations.

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801139334 filter series XCMG

1 803399186 1 FILTER ELEMENT
2 860152041 1 TRANSMITTER
3 860204792 1 HOLD WASHER
4 860204790 1 SEAL RING