Core Product Function
DZ95319690769 is an exclusive left front steel plate bracket designed for SHACMAN series heavy-duty trucks, acting as a critical load-bearing component of the vehicle's front suspension system. Its core functions include fixing and positioning the left front leaf spring, establishing a stable connection between the leaf spring assembly and the frame, and efficiently transferring the vehicle's dead weight, payload, and road impact forces to the frame structure. By ensuring the stability of the suspension system, it enhances driving smoothness, reduces vibration, and improves overall operational safety, making it adaptable to harsh working conditions such as heavy-load transportation, rough road operations, mountainous climbing, and long-distance haulage of heavy-duty trucks.
Adaptability and Compatibility
Applicable Vehicles: SHACMAN X3000, F3000, M3000 series heavy-duty trucks (covering cargo trucks, tractors, and special-purpose vehicles)
Adaptable Systems: Original factory left front leaf spring suspension system, compatible with matching shock absorbers, connecting rods, and frame mounting points
OE Reference Number: DZ95319690769
Interchangeability: Direct replacement of OE parts, with precise alignment of mounting holes, bolt positions, and contact surfaces; no modification to the frame, leaf spring, or suspension structure required
Value-added Service: Provide vehicle configuration verification based on VIN code, suspension model, and frame specifications to ensure 100% fit and installation accuracy
Key Technical Parameters
Main Dimensions: Length 280±2mm, width 150±2mm, thickness 18±1mm; 4 mounting holes (diameter 16±0.5mm) with center distance 120mm×80mm; mounting surface parallelism ≤0.2mm
Material Specification: Q345B high-strength low-alloy structural steel, one-piece forging forming, overall hardness HB 180-220
Rated Bearing Capacity: ≥80kN (suitable for heavy-duty payloads up to 49 tons)
Mechanical Properties: Yield strength ≥345MPa, tensile strength 470-630MPa, impact toughness ≥34J (at -20℃)
Operating Temperature Range: -40℃~120℃ (resists extreme cold in northern regions and high-temperature exposure in southern areas)
Anti-corrosion Performance: Passes 1200-hour neutral salt spray test, corrosion rate ≤0.02mm/year
Surface Roughness: Ra ≤1.6μm (ensures tight fit with frame and leaf spring)
Materials and Processes
Core Materials: Q345B high-strength steel (excellent load-bearing capacity and impact resistance), high-strength carbon steel bolts (grade 10.9, anti-loosening and anti-fatigue), galvanized lock washers
Surface Treatment: Shot blasting (eliminates internal stress, improves surface hardness and fatigue life), electrophoretic coating (30-40μm thick, uniform anti-corrosion layer), topcoat painting (acrylic polyurethane, secondary anti-rust and anti-aging)
Production Process: Precision forging (blank forming, dense internal structure), CNC milling (mounting surfaces and holes), CNC drilling (precision positioning of mounting holes), shot blasting, electrophoretic coating, topcoat spraying, assembly, 100% dimensional and load-bearing testing before delivery
Production Line Capacity: Equipped with automatic forging equipment and CNC machining centers, monthly output ≥7000 pieces; self-owned molds ensure consistent product precision
Quality Grade and Inspection
Quality Grade: High-quality aftermarket parts, fully compliant with SHACMAN OE technical standards and GB/T 1591-2018 high-strength low-alloy structural steel specifications
Inspection Items: Dimensional accuracy test (CNC coordinate measuring), load-bearing pressure test, impact toughness test, anti-corrosion salt spray test, surface flatness test, bolt torque test
Quality System: IATF16949 and ISO9001 certified, implementing strict quality control from raw material incoming inspection to finished product delivery
Batch Tracking: Full batch traceability supported; each bracket is laser-marked with batch number, production date, and OE number; complete production and inspection records retained for 5 years
Service Life and Performance
Average Service Life: ≥12 years or 900,000 kilometers (under normal working conditions and regular maintenance)
Performance Improvement: One-piece forging enhances structural integrity, avoiding welding cracks; Q345B steel ensures high load-bearing capacity without deformation; electrophoretic+painting double anti-corrosion extends service life in harsh environments; high-precision machining ensures stable force transmission
Harsh Environment Adaptation: Resists -40℃ extreme low temperature without brittle fracture; withstands 120℃ high temperature without coating aging; adapts to sand erosion in deserts, acid rain in southern regions, and road impact in construction sites; no deformation, cracking, or rust under long-term heavy-load operation
Fault Improvement and Replacement Value
Common Fault Improvement: Solves OE bracket issues such as deformation under heavy load, welding seam cracking, coating peeling and rust, and loose mounting holes caused by insufficient strength and poor anti-corrosion
Maintenance Value: Direct plug-and-play replacement reduces maintenance time by 30%; long service life lowers replacement frequency and maintenance costs; stable structure prevents suspension system failure, avoiding secondary damage to the frame and leaf spring
Packaging and Marking
Packaging Configuration: Individual EPE anti-collision foam wrapping + moisture-proof film + corrugated carton; bulk orders packed with wooden pallets (fixed with steel straps) to prevent collision deformation and coating damage during transportation
Outer Carton Marking: OE number, product name (Left Front Steel Plate Bracket), applicable vehicle models, quantity, batch number, production date, gross weight, net weight, and anti-collision/moisture-proof warning signs
Product Marking: Laser marking of OE number, material grade, rated bearing capacity, batch number, and production date on the non-contact surface (clear and wear-resistant)
Customization Service: Supports neutral packaging, customer brand logo customization, and special dimension adjustment for modified heavy-duty truck models
Supply Capacity
Inventory Status: In-stock supply for SHACMAN X3000/F3000/M3000 series mainstream models
Minimum Order Quantity (MOQ): 5 pieces (sample order acceptable with MOQ 1 piece)
Delivery Cycle: 3 working days for spot goods; 8-15 working days for bulk customized orders (depending on processing requirements)
Supply Stability: Monthly output ≥7000 pieces, stable supply of Q345B raw materials, and mature production processes ensure no delivery delays; sufficient safety stock for emergency orders
Certification and After-sales Guarantee
Certification Qualifications: IATF16949, ISO9001 certified; compliant with GB/T 1591-2018 standards; third-party test reports (load-bearing, anti-corrosion, impact toughness) available upon request
Quality Guarantee Policy: 36-month warranty period; 7-day free replacement/return for non-human damage (e.g., natural deformation, coating peeling, rust without external impact)
Technical Support: 24-hour online technical service, providing installation guidelines, torque specifications, and suspension fault diagnosis solutions
Return and Exchange Policy: Accept return/replacement for non-human damage, with freight borne by the supplier; fast replenishment service for defective products to minimize customer losses
Scenario Cases
Northern China: Applied to SHACMAN X3000 tractors operating in -38℃ low-temperature areas (Heilongjiang, Inner Mongolia), withstood long-term frost and road vibration, no deformation or rust, service life exceeding 950,000 kilometers
Northwest China: Used in SHACMAN F3000 cargo trucks in Gobi and desert regions (Xinjiang, Qinghai), resistant to sand erosion and extreme temperature differences, stable load-bearing performance, no cracking under 45-ton heavy-load haulage
Southern China: Adapted to SHACMAN M3000 trucks in high-temperature and humid areas (Guangdong, Guangxi), double anti-corrosion treatment effectively resists acid rain, the bracket remains intact after 8 years of use, with firm connections
Maintenance and Precautions
Installation: Clean the frame and bracket contact surfaces to remove rust, oil, and debris before installation; use new grade 10.9 high-strength bolts and lock washers; tighten bolts in diagonal order according to specified torque; ensure no gap between the bracket and frame after installation.
Inspection: Check the bracket for deformation, cracking, and coating peeling every 60,000 kilometers; re-tighten loose bolts; clean surface dirt regularly to avoid scratching the anti-corrosion coating.
Storage: Store in a dry, ventilated warehouse, avoid contact with water, oil, and corrosive substances; place horizontally to prevent deformation; keep packaging intact to protect the anti-corrosion layer.
Replacement: Replace the bracket immediately if there is deformation, cracking, rust penetration, loose mounting holes, or abnormal suspension noise caused by bracket damage to avoid suspension failure.
Frequently Asked Questions (FAQ)
Q1: How to confirm the bracket is compatible with my SHACMAN truck?
A1: Provide your vehicle's VIN code, model, or suspension assembly number, and we will verify the matching degree of the bracket's dimensions, mounting holes, and load-bearing capacity with your vehicle to ensure perfect fit.
Q2: Why is Q345B steel chosen for this bracket?
A2: Q345B high-strength steel has excellent comprehensive performance-high yield strength, good impact toughness, and wear resistance-fully meeting the heavy-load and anti-vibration requirements of heavy-duty truck suspension brackets, and it is the OE-specified material for SHACMAN trucks.
Q3: Can samples be provided for testing?
A3: Yes, sample supply is supported. The sample fee can be fully deducted from the subsequent formal order, and the sample delivery cycle is 2-3 working days.
Q4: What is the recommended installation torque for the bracket bolts?
A4: The recommended torque for 16mm mounting bolts is 80-90N·m. It is recommended to tighten bolts in diagonal order and recheck the torque after the first 500 kilometers of operation to ensure firm connection.
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