318307499 welding bracket XCMG XE2000 excavator spare parts

XCMG XE2000 Excavator Welded Support (Part No. 318307499): The Core Welded Support for Heavy-Duty Structures

In the core load-bearing structure of large mining excavators, the welded support is the “structural hub” connecting key components and transmitting operational loads. XCMG’s specially developed welded support (part no. 318307499) for the XE2000 excavator, with its military-grade welding process and high-strength material properties, provides a solid guarantee for the structural stability of the equipment under heavy-duty conditions, offering a reliable structural support solution for engineering teams worldwide.

High-strength alloy base material, superior welding strength

The XCMG XE2000 welded bracket (part number 318307499) is integrally welded from low-alloy high-strength steel plate (Q690D). The steel plate thickness in the core load-bearing parts reaches 25mm. Authoritative testing shows that its base material has a tensile strength of 720MPa and a yield strength exceeding 690MPa, far exceeding the industry’s conventional welded bracket tensile standard of 550MPa. Through XCMG’s unique “preheating – interpass temperature control – post-heat stress relief” welding process, the weld penetration reaches over 85% of the steel plate thickness, and the weld joint strength reaches 90% of the base material. Key welds undergo 100% ultrasonic and magnetic particle testing to ensure the absence of cracks, porosity, and other defects. Each support frame undergoes three rigorous verifications: static load-bearing test (withstanding 1.3 times the rated load without permanent deformation), dynamic fatigue test (200,000 cycles of loading without crack propagation), and overall dimensional accuracy inspection (flatness of key reference surfaces ≤ 0.05mm/m). Actual test data shows that during 4000 hours of continuous heavy-load operation testing, the structural deformation of this support frame is controlled within 0.2mm, extending its service life by 150% compared to ordinary welded supports.

Optimized welded structure for superior load-bearing performance

Targeting the heavy-load operation characteristics of the XE2000 excavator, the support frame adopts a truss-type reinforced structure design optimized by finite element analysis. This reduces its weight by 20% while increasing overall rigidity by 40%. Key stress-bearing components utilize a “double-plate overlay welding + rib reinforcement” structure, reducing the stress concentration factor by 35% and effectively dispersing impact loads during operation. Its surface employs a three-layer anti-corrosion process: sandblasting for rust removal, epoxy primer, and topcoat. The total coating thickness exceeds 120μm, and it can withstand 1200 hours of salt spray testing (equivalent to 6 years of outdoor anti-corrosion effect), providing long-term resistance to rust in high-humidity, dusty mining environments.

The bracket mounting holes utilize a “welding-then-boring” process, ensuring precise tolerances even after welding deformation. The positioning hole tolerance grade reaches IT7, with hole position accuracy controlled within ±0.03mm, and the clearance with related components ≤0.1mm. In extreme temperature tests ranging from -40℃ to 90℃, the thermal stress deformation of the welded joints is minimal, guaranteeing long-term fitting accuracy of all connections.

Adaptable to all working conditions, structurally stable and reliable

This welded bracket is specifically designed for the multi-scenario operational needs of the XE2000 excavator, maintaining stable performance in extreme environments such as mines at altitudes of up to 6000 meters, mountainous work areas with slopes of 35°, and high-vibration crushing sites. Shock-absorbing pads are added to the connection point between the bracket and the machine body, reducing vibration transmission rate by 50% and effectively protecting the machine structure from high-frequency impact damage.

Actual engineering application data shows that XE2000 excavators equipped with this bracket experience a 75% reduction in structural component failure rate and a 90% reduction in downtime due to welded bracket issues. In heavy-duty excavation operations in large mines, the bracket can effectively distribute more than 60% of the overall operating load, extending the fatigue life of related components by 80% and significantly improving the overall reliability of the equipment.

Deep Original Factory Fit, Enhanced System Efficiency

As a core structural component from XCMG, the welding bracket (part number 318307499) achieves 100% precise matching with key components of the XE2000 excavator, such as the boom, turntable, and hydraulic cylinders, perfectly conforming to the overall machine’s structural stress design. The bracket has a reserved sensor installation interface, allowing it to link with the excavator’s structural health monitoring system to monitor parameters such as stress and vibration frequency in the welding area in real time, enabling early warning of potential faults.

The installation process utilizes original factory positioning fixtures and high-strength bolts for fixing, eliminating the need for on-site repairs or secondary processing. Installation accuracy reaches 0.02mm, improving installation efficiency by 70% compared to generic welding brackets. Data shows that XE2000 excavators equipped with original factory welding brackets experience a 35% improvement in overall structural stability and a 20% increase in dynamic response accuracy during operation. Choosing the XCMG XE2000 original welded bracket (part number 318307499) means choosing a structural safety barrier that has been proven under extreme working conditions. This ensures that the heavy-duty excavator maintains a stable and reliable operating state during high-intensity operations, significantly reducing equipment maintenance costs and creating higher returns for engineering projects.

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318307500 bracket

1 318307499 1 WELDING BRACKET
2 329900304 8 THICKENED FLAT WASHER
3 805046476 8 NUT M16 GB/T6170-2000
4 805048168 4 BOLT M16×70 GB/T5782-2000
5 318006991 2 PIPE CLAMP ASSEMBLY