Description

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Qingdao Hailong Machinery Technology Co., Ltd. is one of the leading manufacturers and suppliers of automotive brackets in China, featured by quality products and good service. Welcome to buy durable automotive brackets made in China here and get pricelist from our factory. Also, customized service is available.

Core Product Features

Diversified Materials & Heavy-load Adaptation

Optional high-strength carbon steel (Q235B/Q355B), alloy structural steel (45#/20CrMo), lightweight aluminum alloy (6061-T6/5052-H32) to meet different load requirements. Carbon steel brackets have tensile strength ≥355MPa and yield strength ≥235MPa, suitable for heavy-duty commercial vehicle scenarios; aluminum alloy material reduces weight by 25%-35%, improving fuel economy and cruising range of new energy vehicles; alloy structural steel is wear-resistant and fatigue-resistant, suitable for key stress-bearing parts of the chassis.

Precision Forming & Accurate Adaptation

Adopt CNC stamping, bending, welding, forging and other processes, combined with 3D scanning modeling and finite element analysis optimization, dimensional accuracy up to ±0.15mm, mounting hole error ≤0.2mm; perfectly fit with engine, gearbox, suspension system and other components, can be directly assembled without modification, ensuring chassis structure stability.

Structural Optimization & Excellent Load-bearing Capacity

Through mechanical structure simulation design, the bracket adopts integrated structure such as reinforcing ribs and hollow weight reduction, improving load-bearing capacity while lightweight; single-point load-bearing can reach 500-3000kg (depending on model), torsional rigidity increased by 30%, which can effectively disperse chassis load and avoid deformation and damage caused by local stress concentration.

Weather-resistant & Corrosion-resistant, Durable Quality

The surface is treated with multiple protections, carbon steel parts adopt pickling phosphating + electrophoresis + spraying triple coating, no rust after 1200 hours of salt spray test; aluminum alloy parts are anodized, corrosion resistance increased by 40%; all brackets pass high and low temperature cycle test (-40℃~80℃), can still work stably in harsh environments such as humidity and salt alkali, service life up to more than 10 years.

Full-scenario Adaptation & Function Expansion

Cover all categories of passenger cars (sedans/SUVs/MPVs), commercial vehicles (light trucks/heavy trucks/buses), new energy vehicles (pure electric/hybrid/hydrogen energy), including core components such as engine brackets, gearbox brackets, suspension brackets, battery pack brackets, exhaust pipe brackets; can customize lightweight, shock absorption and buffering, integrated wire harness fixation and other functions to meet personalized installation needs.

Core Process Advantages

Precision Manufacturing Technology

Carbon steel parts adopt CNC stamping + robotic welding process, welds are full and defect-free, welding strength reaches 95% of base metal strength; aluminum alloy parts adopt extrusion molding + CNC finishing, surface smooth and burr-free; forged brackets undergo forging + heat treatment process, grain refinement, mechanical properties increased by 20%.

Surface Treatment Process

Carbon steel parts go through five-step process of degreasing → pickling → phosphating → electrophoresis → spraying, coating adhesion reaches level 1 (cross-cut method), hardness ≥2H, scratch-resistant and anti-aging; aluminum alloy parts adopt hard anodization, film thickness ≥15μm, wear-resistant and corrosion-resistant; all bracket surfaces have no bubbles, sagging and other defects, strong appearance consistency.

Full-process Quality Control

Raw materials undergo material spectral analysis, tensile strength test and impact test; the production process real-time monitors dimensional accuracy, welding quality and coating thickness; finished products pass static load test, dynamic fatigue test and salt spray corrosion test. Complete test reports are provided for each batch with traceable quality.

Application Scenarios

Passenger Car Supporting

Supporting main and auxiliary factories of sedans, SUVs, MPVs and other passenger cars, used to fix engines, gearboxes and suspension systems, ensuring driving stability and comfort.

Commercial Vehicle Supporting

Chassis brackets for light trucks, heavy trucks, buses and other commercial vehicles, adapting to heavy loads and complex road conditions, emphasizing load-bearing capacity and durability.

New Energy Vehicle Supporting

Battery pack brackets and motor brackets for pure electric, hybrid and hydrogen energy vehicles, lightweight design improves cruising range, and shock-resistant structure protects core components.

Automotive Maintenance & Modification

Original factory quality replacement parts for 4S stores and maintenance factories, personalized chassis upgrade accessories for modification factories, meeting different usage needs.

Special Vehicle Supporting

Special brackets for special vehicles such as refrigerated trucks, engineering vehicles and ambulances, integrating multi-component fixing functions, adapting to special installation scenarios.

Typical Application Cases

New Energy Commercial Vehicle - Battery Pack Bracket

Customized battery pack bracket for a well-known new energy heavy truck enterprise, adopting Q355B carbon steel + lightweight structure design, single set of bracket load-bearing 2.5 tons, weight reduction 18%, combined with shock absorption and buffering structure, effectively protecting the safety of battery pack under complex road conditions, has been batch supporting the brand's mainstream models.

Passenger Car SUV - Suspension Bracket

Supplied suspension brackets for a joint-venture brand SUV, adopting 6061-T6 aluminum alloy material, optimizing structure through finite element analysis, torsional rigidity increased by 35%, adapting to urban roads and mild off-road scenarios, batch supporting more than 500,000 units, market failure rate less than 0.1%.

Commercial Vehicle Light Truck - Engine Bracket

Customized engine bracket for light trucks, adopting 20CrMo alloy structural steel, through forging + heat treatment process, wear-resistant and fatigue-resistant, adapting to long-distance heavy-load transportation, service life extended by 3 years compared with ordinary brackets, has become a designated supporting product for many commercial vehicle enterprises.

Quality Assurance

Test Reports

Provide raw material quality reports, dimensional accuracy test reports, welding quality test reports, load test reports, salt spray corrosion test reports, fatigue test reports, etc.

After-sales Commitment

For non-human damage, carbon steel brackets are warranted for 3 years, aluminum alloy/alloy structural steel brackets for 5 years; free replacement for quality problems such as deformation, cracking and rust during the warranty period; professional technical team is online 24/7 to provide installation guidance and technical support.

Quality Standards

Strictly follow industry standards such as GB/T 3075 "Metallic Materials - Fatigue Testing - Axial Force Control Method", GB/T 10125 "Artificial Atmosphere Corrosion Testing - Salt Spray Testing", ISO 6431 "Commercial Vehicles - Chassis Components - Strength Requirements".

Main Technical Specifications (Standard Models)

Parameter Type	Specification Range
Material Type	Carbon Steel (Q235B/Q355B), Alloy Structural Steel (45#/20CrMo), Aluminum Alloy (6061-T6/5052-H32)
Core Performance	Tensile Strength ≥355MPa (Carbon Steel);Weight Reduction 25%-35% (Aluminum Alloy);Single-point Load-bearing 500-3000kg
Surface Treatment	Carbon Steel: Electrophoresis + Spraying;Aluminum Alloy: Anodization;Alloy Steel: Phosphating + Anti-rust Coating
Precision Requirement	Dimensional Accuracy ±0.15mm;Mounting Hole Error ≤0.2mm;Welding Strength ≥95% of Base Metal
Weather Resistance	No Rust After 1200 Hours Salt Spray Test;High and Low Temperature Resistance -40℃~80℃;Fatigue Life ≥10⁶ Cycles
Adaptable Vehicles	Passenger Cars, Commercial Vehicles, New Energy Vehicles, Special Vehicles (Customizable Adaptation)
Core Components	Engine Bracket, Gearbox Bracket, Suspension Bracket, Battery Pack Bracket, Exhaust Pipe Bracket, etc.