329901071 Thickened flat washer XCMG XDE130 Electric driving dump truck spare parts

The 329901071 thickened flat washer addresses the shortcomings of traditional flat washers, such as insufficient thickness, poor heat dissipation, easy deformation, and poor corrosion resistance. It is widely used in bolted connections on XCMG construction machinery, especially suitable for high-temperature, heavy-load, and high-vibration core components, serving as a key auxiliary fastener for equipment maintenance and installation. This product adheres to XCMG’s original factory standards, using high-strength alloy materials and integrating a dedicated heat dissipation groove and anti-corrosion coating. Manufactured through multiple precision processes, it is suitable for complex working conditions such as mining, dispersing stress, assisting heat dissipation, preventing crushing of the connection surface and bolt loosening, and extending component lifespan. In terms of performance, it offers flexible adaptability with thicknesses from 1.2-4mm, reduces contact stress by 37%-52%, achieves a heat dissipation efficiency of ≥90%, uses electro-galvanized/Dacromet anti-corrosion coating, shows no white rust after 48 hours of salt spray testing, has a tensile strength of ≥1100MPa, is suitable for environments from -30℃ to 80℃, has burr-free chamfered edges, and provides a tight fit, making it suitable for high-strength bolt applications in various XCMG equipment series.

Core technical parameters:

– Product Model: 329901071
– Product Name: Thickened Flat Washer (Special for XCMG Construction Machinery)
– Material Specifications: High-strength alloy material, integrated dedicated heat dissipation groove, with anti-corrosion coating, thickness 1.2-4mm (adaptive to bolt specifications), conforming to GB/T 5267.1-2014 C4 level requirements.
– Processing technology: precision stamping, deburring, heat treatment, protective coating, heat dissipation optimization, resulting in a smooth, burr-free structure and tight fit.
– Compatible models: XCMG series construction machinery (including excavators, cranes, electric dump trucks, mining trucks, etc., compatibility search is available)
– Key parameters: Heat dissipation efficiency ≥90%, thickness 1.2-4mm, tensile strength ≥1100MPa, contact stress reduction 37%-52%, coating thickness 8-12μm, no white rust after 48h salt spray test.
– Temperature range: -30℃~80℃, suitable for high and low temperatures, material without brittleness or coating peeling, stable heat dissipation.
– Structural features: Modular design, thickened construction with heat dissipation grooves, chamfered edges, corrosion and wear resistant, pressure distribution, auxiliary heat dissipation, easy installation and disassembly.
– Installation method: Installed with matching bolts, ensuring a tight fit; original factory interface for precise alignment and easy installation.
– Service life: ≥8000 hours under normal operating conditions; wear-resistant and corrosion-resistant; stable heat dissipation and pressure resistance; not easily deformed.
– Core configuration: High-strength alloy body, heat sink, anti-corrosion coating, chamfered edges, and pressure-bearing and heat dissipation features.

We specialize in supplying XCMG parts. Our 329901071 thickened flat washer is manufactured according to the original factory process, integrating heat dissipation grooves and thickening technology. It undergoes strict quality control, can replace the original factory part, solves traditional pain points, ensures a stable connection, reduces maintenance costs, and provides comprehensive after-sales service and adaptation guidance.