Dongfeng Kinland truck spare parts Rear wall welding assembly 5600010-C0300

A core advantage of the 5600010-C0300 assembly is its exceptional load-bearing and impact-resistant performance, tailored to Kinland’s heavy-duty needs. It is fabricated from Q355ND low-alloy high-strength steel (6mm thick for main panels, 8mm for reinforced edges), which offers a tensile strength of 510MPa—capable of withstanding 10,000kg static load (for cargo box applications) or absorbing 500J impact force (e.g., rear collisions with light debris). The steel undergoes thermomechanical rolling to enhance toughness, preventing brittle fracture in low temperatures (-40°C) or high-stress scenarios (e.g., hauling uneven cargo). For Kinland trucks transporting construction materials or heavy freight, this strength ensures the rear wall avoids deformation, protecting both the vehicle body and cargo

The 5600010-C0300 assembly features industrial-grade welding to guarantee long-lasting structural reliability. It adopts gas metal arc welding (GMAW, MIG) with ER50-6 low-carbon steel wire, creating weld seams with a shear strength of 340MPa—matching the base steel’s performance to eliminate weak points. Each weld joint (total length 5000mm) is inspected via X-ray and ultrasonic testing, ensuring zero defects (e.g., porosity, cracks) that could lead to joint failure. Weld edges are ground smooth to reduce stress concentration and prevent corrosion buildup, while 3D laser positioning (accuracy ±0.3mm) during welding ensures all components (reinforcing ribs, mounting brackets) align perfectly. This precision ensures the assembly maintains structural integrity even under repeated vibration (from road travel) or load shifts

Built to withstand harsh operating conditions, the 5600010-C0300 assembly boasts a robust anti-corrosion system. First, it undergoes hot-dip galvanization (zinc coating thickness 80μm) to form a barrier against rust from road salt, rain, or mud—critical for trucks operating in coastal or winter regions. Next, it receives an electrophoretic coating (E-coat, 25μm) that covers hidden areas (e.g., weld gaps, bracket inner surfaces) to prevent under-film corrosion. A final polyurethane topcoat (30μm, gloss 60±5%) adds scratch resistance and UV protection, avoiding paint fading in prolonged sunlight. This multi-layer system passes 1,200-hour salt spray tests, ensuring the assembly remains rust-free for 8+ years—outperforming generic assemblies with single-layer paint that corrode within 3 years

The 5600010-C0300 assembly is designed for efficient installation, reducing Kinland truck downtime. It comes pre-welded with all necessary brackets (e.g., cab interior support brackets, cargo box latch mounts) and pre-drilled mounting holes, eliminating on-site welding or drilling. The package includes 10.9-grade high-strength bolts (with lock washers) that match Kinland’s factory torque specifications (200-220 N·m), ensuring secure attachment to the frame. Installation takes 4-6 hours for a two-person team using standard tools (torque wrenches, impact drivers), and a detailed manual (with 3D assembly diagrams) guides alignment to avoid misfit. Unlike custom-welded alternatives, this OEM assembly requires no post-installation adjustments, getting Kinland trucks back on the road faster for time-sensitive tasks