Dongfeng KL truck parts Upper bracket assembly of right oil cylinder 5003085-C0305

Crafted from Q345B low-alloy high-strength steel—a material widely used in heavy-duty truck structural components—the bracket delivers exceptional load-bearing capacity. It has a tensile strength of 510–600 MPa and a yield strength of ≥345 MPa, enabling it to withstand the maximum dynamic load of Dongfeng KL’s right oil cylinder (up to 80 kN) during cab tilt or suspension adjustment. The bracket’s structure is optimized via finite element analysis (FEA), with reinforced ribbing at stress concentration points (e.g., mounting hole edges, pivot joint) that reduces deformation by 40% compared to flat-plate brackets. Unlike ordinary carbon steel brackets that bend or crack under heavy loads, this high-strength design maintains structural integrity through 10,000+ oil cylinder actuation cycles, ensuring reliable support for long-term use

Engineered to resist corrosion from road salt, moisture, and hydraulic oil leakage—common in truck undercarriage environments—the bracket undergoes a comprehensive surface treatment process. First, it is sandblasted to remove rust and debris, then coated with a zinc-nickel alloy layer (12μm thickness) via electroplating, which passes 1,000 hours of neutral salt spray testing without red rust. Finally, a layer of epoxy powder coating (60μm thickness) is applied, providing additional resistance to chemical corrosion and abrasion from road gravel. The oil cylinder pivot hole is also precision-machined and coated with a wear-resistant nickel-phosphorus layer (5μm thickness), reducing friction between the bracket and cylinder pivot shaft by 30% and preventing premature wear. Unlike uncoated or single-layer painted brackets that corrode within 1–2 years, this multi-layer treatment ensures the bracket operates reliably for 5+ years

The bracket assembly features precision-machined mounting and pivot holes to ensure accurate installation and alignment with the oil cylinder and truck frame. All holes are drilled using CNC machining centers with a tolerance of H8 (for mounting holes) and H7 (for pivot holes), ensuring a tight fit with OEM bolts (M16×40mm for frame mounting, M14×35mm for cylinder pivot) and eliminating looseness caused by oversized holes. The bracket’s mounting surface is milled to a flatness of ≤0.1mm per 100mm, ensuring full contact with the truck frame and distributing load evenly across the bracket. Additionally, the bracket includes alignment marks that match reference points on the frame, guiding technicians to position it correctly during installation—critical for maintaining the oil cylinder’s vertical stroke and preventing lateral stress. Unlike roughly machined brackets that require on-site adjustment, this precision design reduces installation time by 50% and ensures consistent performance

Built to withstand the constant vibration of truck operation (common in long-haul or off-road conditions), the bracket assembly includes vibration-dampening features that protect the oil cylinder and hydraulic system. The frame mounting holes are equipped with rubber bushings (made of EPDM rubber) that absorb 60% of road vibrations, preventing metal-to-metal contact between the bracket and frame and reducing noise. The oil cylinder pivot joint uses a self-lubricating brass bushing that maintains smooth rotation even under vibration, avoiding seizing or binding that could damage the cylinder rod. Rigorous vibration testing confirms the bracket endures 200,000+ cycles of sinusoidal vibration (10–2,000 Hz, 20G acceleration) without structural damage or loosening of fasteners. Backed by a 24-month warranty against manufacturing defects (e.g., cracking, corrosion, or wear), this bracket provides Dongfeng KL truck owners with reliable support for the right oil cylinder and stable operation of the hydraulic system