Dongfeng Kingrun VR truck parts Front wall welding assembly 5300010-C1100

Built to withstand frontal impacts and support cab components (windshield, dashboard, front lights), the assembly features a reinforced welded structure with premium materials. The base panel uses 8mm-thick Q355B low-alloy steel (yield strength 355MPa) for core rigidity, while vertical and horizontal reinforcing beams (6mm-thick Q355B) are welded in a grid pattern (300mm×300mm intervals) to enhance impact resistance. All welds are robotic submerged arc welds with a minimum throat thickness of 5mm, passing X-ray non-destructive testing (NDT) to ensure no cracks or porosity. Finite Element Analysis (FEA) confirms it withstands a frontal impact force of 80kN (exceeding ECE R29 cab safety standards) without deformation, and maintains structural integrity under 500,000+ cycles of road vibration. Unlike weakly welded assemblies that crack under stress, this design ensures driver safety and long-term cab stability

Engineered as a central mounting hub for front cab components, the assembly integrates precision-machined features to simplify installation. It includes pre-welded nuts (M8 and M10) for securing the dashboard frame, with 12mm-deep threaded holes spaced at 180mm intervals to match the Kingrun VR’s instrument panel. A 20mm-wide flange along the top edge features a rubber-sealed groove (compatible with EPDM weatherstripping) that creates a watertight seal with the windshield. Pre-punched holes (diameter 25mm) at the lower edge accommodate wiring harnesses and HVAC ducts, with reinforced grommet seats to prevent cable abrasion. Unlike basic front walls requiring custom brackets, this integrated design reduces component installation time by 40% and ensures proper alignment of all front cab systems

Designed to resist corrosion from rain, road spray, and humidity (critical for front-facing cab panels), the assembly undergoes a rigorous surface treatment process. It starts with shot blasting (Sa 2.5 standard) to remove scale and contaminants, followed by a zinc phosphate coating (85μm thickness) for corrosion resistance. A cathodic electrophoretic primer (90μm) is applied to seal the surface, ensuring adhesion with the truck’s topcoat paint (compatible with both polyurethane and acrylic finishes). The weld seams are additionally treated with anti-corrosion sealant (polyurethane-based) to prevent rust in crevices. This system passes 1,400 hours of neutral salt spray testing (equivalent to 11 years of service) without rust, maintaining the cab’s appearance and structural integrity in harsh climates

Designed for seamless integration into cab manufacturing or repair processes, the assembly arrives fully welded and pre-treated—ready for painting and installation. It includes alignment pins (4mm diameter) at key corners that mate with corresponding holes in the Kingrun VR’s cab floor and side walls, ensuring precise positioning during welding. The package includes a detailed installation guide specifying weld parameters (current, voltage, travel speed) and torque values for component mounting (35N·m for M8 nuts, 55N·m for M10 nuts). Each unit undergoes dimensional inspection via CMM, weld quality testing, and flatness verification, backed by a 36-month warranty against defects (e.g., weld failure, corrosion, dimensional inaccuracies). This design minimizes assembly time for manufacturers and simplifies cab repairs for fleet operators