Description

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

Core Product Features

Diversified Materials & On-demand Adaptation: Optional cold-rolled steel plate (DC01/DC03), high-strength aluminum alloy (6061-T6/5052-H32), engineering plastic (PP+GF/ABS/PC), SMC composite material, etc., to meet different vehicle and scenario requirements. Sheet metal covering parts have tensile strength ≥340MPa, suitable for heavy-duty commercial vehicles; aluminum alloy material reduces weight by 30%-40%, improving fuel economy and cruising range of new energy vehicles; plastic/composite materials are impact-resistant and corrosion-resistant, suitable for passenger car exterior parts, and can realize complex curved surface forming.
Precision Forming & Perfect Curved Surface: Adopt CNC stamping, hydraulic stretching, injection molding and other processes, combined with 3D scanning modeling and CAD/CAM simulation optimization, surface contour accuracy up to ±0.1mm, smooth curved surface transition without defects; decorative edges and ribs are clear and symmetrical, gap uniform ≤0.5mm, highly consistent with the overall vehicle shape, enhancing vehicle visual texture.
Structural Protection & Safe Reliable: As the core of vehicle body force and protection, the covering parts can disperse collision impact force through mechanical structure optimization, protecting key components such as engine and chassis; sheet metal parts adopt integral forming without splicing design, torsional rigidity increased by 25%, plastic parts with built-in reinforcing rib structure, impact strength up to 15kJ/m², which can effectively resist gravel impact and slight collision during driving.
Weather-resistant & Durable Quality: The surface is treated with multiple processes, sheet metal parts adopt electrophoresis + topcoat + clear coat triple coating, no rust after 1000 hours of salt spray test, UV aging resistance for 5 years without fading; plastic parts adopt electrostatic spraying + anti-UV coating, excellent high and low temperature resistance (-40℃~80℃), no deformation or cracking after long-term outdoor use; SMC composite material has water absorption rate ≤0.1%, acid and alkali corrosion resistance, suitable for harsh working conditions.
Full Vehicle 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 cover, roof cover, door, fender, trunk cover, front and rear bumpers; can customize lightweight design, aerodynamic kit, collision avoidance reinforcement structure, integrated guide groove and other functions to meet personalized and practical needs.

Core Process Advantages

Precision Forming Technology: Sheet metal parts are integrally formed by CNC punch + hydraulic stretching machine, avoiding springback and deformation of traditional processes, curved surface precision error ≤0.05mm; plastic parts adopt injection mold flow analysis to optimize gate design, uniform filling without shrinkage marks and bubbles; SMC composite materials adopt compression molding process, uniform fiber distribution, strength consistency increased by 30%.
Surface Treatment Process: Sheet metal parts go through four-step process of pickling phosphating → electrophoretic primer → topcoat → clear coat, coating adhesion reaches level 1 (cross-cut method), hardness ≥2H (pencil hardness); plastic parts adopt vacuum coating, electrostatic spraying and other processes, uniform surface gloss (60° angle gloss value ±2), delicate touch; all covering parts pass weather resistance test and corrosion resistance test to ensure long-term use quality.
Full-process Quality Control: Raw materials undergo material testing, tensile strength testing, environmental protection testing (complying with RoHS/REACH standards); the production process real-time monitors forming dimensions, surface quality and assembly gaps; finished products pass 3D coordinate measurement, collision simulation test and high-low temperature cycle test. Complete test reports are provided for each batch with traceable quality.

Application Scenarios

Passenger Car Supporting: Replacement of main and auxiliary factory covering parts for sedans, SUVs, MPVs and other passenger cars, upgrading and modification of exterior parts, meeting original factory quality and personalized needs.
Commercial Vehicle Supporting: Covering parts for commercial vehicles such as light trucks, heavy trucks and buses, adapting to heavy loads and complex road conditions, emphasizing protection and durability.
New Energy Vehicle Supporting: Lightweight covering parts for pure electric, hybrid and hydrogen energy vehicles, optimizing cruising range and aerodynamic performance, adapting to urban commuting and long-distance travel.
Automotive Maintenance & Modification: Original factory quality replacement parts for 4S stores and maintenance factories, aerodynamic kits and personalized exterior parts customization for modification factories.
Special Vehicle Supporting: Special covering parts for special vehicles such as refrigerated trucks, engineering vehicles and ambulances, integrating protection, flow guidance, installation interfaces and other functions.

Typical Application Cases

New Energy Passenger Car - All-aluminum Body Covering Parts Kit: Customized all-aluminum covering parts kit (engine cover + fender + trunk cover) for a well-known new energy vehicle enterprise, adopting 5052-H32 aluminum alloy material, overall weight reduction of 28kg (compared with traditional sheet metal parts), combined with aerodynamic optimization design, vehicle drag coefficient reduced by 0.03, cruising range increased by 15km, has been batch supporting the brand's mainstream models.
Commercial Vehicle Heavy Truck - High-strength Sheet Metal Bumper: Supplied high-strength bumpers for heavy truck series of a commercial vehicle enterprise, integrally formed with Q355 cold-rolled steel plate, built-in anti-collision beam and energy absorption structure, impact strength up to 50kJ, certified by GB 11567 "Requirements for Side and Rear Underrun Protection of Motor Vehicles and Trailers", batch supporting more than 100,000 units, market failure rate less than 0.3%.
Passenger Car Modification - SMC Composite Exterior Kit: Customized SMC composite exterior kit (front and rear bumpers + side skirts + rear wing) for modification factories, weight only 60% of traditional sheet metal parts, smooth curved shape, optimized aerodynamic performance, suitable for a variety of mainstream SUV models, installation fit error ≤1mm, has become a best-selling product in the modification market.

Quality Assurance

Test Reports: Provide raw material quality reports, dimensional accuracy test reports, surface coating test reports, weather resistance test reports, impact resistance test reports, environmental protection test reports, etc.
After-sales Commitment: For non-human damage, sheet metal parts are warranted for 3 years, plastic/composite material parts for 2 years; provide free installation guidance and adaptability debugging services, and lifelong technical support and parts supply.
Quality Standards: Strictly follow industry standards such as GB/T 30038 "Road Vehicles - Body Covering Parts - Dimensional Tolerances", GB/T 1865-2009 "Paints and Varnishes - Artificial Weathering and Artificial Radiation Exposure", ISO 12097 "Automotive Components Weather Resistance Test".