Die-cast Aluminum Alloy Bracket for Car Rearview Mirrors - Qingdao Xinlongji, 10+ Years Expert & One-Stop Manufacturer
Qingdao Xinlongji Metal Manufacturing Co., Ltd. was established in 2012 and is strategically located in Qingdao, Shandong—a crucial industrial and port city in China. As a professional integrated industrial and trade enterprise integrating R&D, production and sales, we are dedicated to providing global clients with one-stop manufacturing solutions covering precision mold design, aluminum alloy die casting, post-processing, and finished part delivery. With over 10 years of focused expertise in die-cast aluminum alloy components for automotive applications, we specialize in the R&D, production and customization of high-precision die-cast aluminum alloy brackets for car rearview mirrors. We deliver industry-compliant, cost-effective products to global B2B customers including automotive OEMs, auto mirror system suppliers, and automotive parts distributors. Leveraging our automotive-specific die casting technology, professional technical support, and strict quality control aligned with international standards, we have built long-term cooperative partnerships with renowned automotive brands and mirror system manufacturers across Europe, North America, and Asia.
Product Overview: Die-cast Aluminum Alloy Bracket for Car Rearview Mirrors
Our die-cast aluminum alloy brackets for car rearview mirrors fully implement the core formula of "product name + core function + technical advantage + application scenario + quality guarantee", perfectly meeting the automotive industry's rigorous requirements for precision, stability, and durability of rearview mirror components. Product name: Die-cast aluminum alloy bracket for car rearview mirrors; Core function: Provide stable structural support for rearview mirror main body, bear the weight of mirror glass and electronic components, ensure smooth adjustment of mirror angle (manual/electric), and resist vibration, impact and harsh environmental erosion during vehicle operation; Technical advantage: Adopt high-pressure die casting technology combined with advanced mold flow simulation and precision mold manufacturing, ensuring uniform material density, high dimensional accuracy and excellent structural integrity; selected aluminum alloys (ADC12, A380, A356) have excellent mechanical properties, corrosion resistance and lightweight characteristics, reducing the overall weight of the rearview mirror without compromising structural strength; Application scenario: Suitable for various types of passenger cars, commercial vehicles, new energy vehicles (BEV/PHEV), and special vehicles (logistics vehicles, construction vehicles), matching different rearview mirror models (manual adjustment, electric adjustment, folding type, heating type); Quality guarantee: All products comply with IATF 16949 automotive quality management system, RoHS/REACH environmental standards, and automotive material safety requirements; customized services are provided based on clients' 3D drawings, sample prototypes and vehicle model matching needs to ensure perfect assembly with rearview mirror systems.
Production Processes & Process Visualization
As a one-stop solution provider, we have mastered a complete set of core processes tailored to the production of die-cast aluminum alloy brackets for car rearview mirrors, covering the entire chain from precision mold R&D to finished product delivery. High-pressure die casting is our core process, while we also provide supplementary processes such as CNC precision machining, surface treatment, and assembly to meet the high-precision requirements of rearview mirror brackets. The full production process with traceability is visualized as follows:
Demand Communication & Technical Evaluation: Professional engineers with automotive die casting experience communicate with clients to clarify technical requirements (dimensional tolerance, assembly gap, mechanical strength, environmental adaptability). We conduct mold flow simulation targeting the complex structure of rearview mirror brackets to predict potential defects (porosity, shrinkage, dimensional deviation) and optimize part structures and mold gate designs.
Precision Mold Design & Manufacturing: Customize high-precision molds for rearview mirror brackets using H13/SKD61 heat-resistant die steel; adopt CNC precision machining (milling, grinding, EDM) for mold cavities and cores to ensure mold accuracy (±0.01mm); conduct strict mold testing and debugging with actual rearview mirror assembly fixtures to verify assembly compatibility and dimensional stability.
Aluminum Alloy Melting & Refining: Select high-quality aluminum alloy ingots (ADC12, A380, A356) and melt them in professional electric resistance furnaces (temperature controlled at 650-720℃); implement three-stage refining (refining agent addition + online degassing + ceramic foam filtering) to remove impurities and gas, ensuring material purity (hydrogen content ≤ 0.15 ml/100g Al) and avoiding internal defects in brackets.
High-Pressure Die Casting: Use automotive-specific fully automatic die casting machines (160-800 tons clamping force, suitable for small and medium-sized rearview mirror brackets) to inject molten aluminum alloy into molds under high pressure (100-150 MPa); real-time monitor temperature, pressure, and filling speed to ensure uniform filling of the complex structure of rearview mirror brackets and dense part structure.
Demolding & Trimming: Use dedicated soft fixtures for smooth demolding to avoid deformation of the thin-walled structure of rearview mirror brackets; remove sprue, runner, and burrs through mechanical trimming and CNC precision deburring to ensure neat edges and avoid interference with assembly.
CNC Precision Machining: For key assembly surfaces and holes of rearview mirror brackets, adopt CNC milling machines and drilling centers for precision machining to ensure dimensional accuracy (±0.02mm) and surface roughness (Ra ≤ 0.8μm), meeting the requirements of tight assembly with mirror bases and adjustment mechanisms.
Surface Treatment: Implement automotive-specific surface treatments according to client requirements and application environments: 1) Anodizing: Enhance corrosion resistance and wear resistance, available in natural, black and other colors; 2) Powder coating: Provide excellent weather resistance and impact resistance, color matching with vehicle body; 3) Passivation: Improve surface corrosion resistance for internal assembly surfaces; all surface treatments meet automotive salt spray test requirements (≥ 500 hours).
Comprehensive Quality Inspection: Set up three inspection links (in-process, semi-finished, finished product) for rearview mirror brackets: 1) Dimensional inspection: Use CMM (Coordinate Measuring Machine) and 3D scanners for 100% full-size inspection; 2) Mechanical property inspection: Conduct tensile testing and hardness testing on sampled products; 3) Surface and internal defect inspection: Use visual inspection, salt spray test chambers, and X-ray flaw detectors to inspect surface quality and internal porosity; 4) Assembly test: Assemble finished brackets with client-provided rearview mirror components to verify assembly gap and adjustment flexibility.
Packaging & Shipping: Adopt anti-scratch, shockproof packaging tailored for small precision components (EPE foam inner lining, partitioned plastic boxes, carton packaging) to avoid damage during transportation. Relying on Qingdao's port advantage, we cooperate with international logistics companies (DHL, FedEx, Maersk) to provide global door-to-door delivery services, simplifying transportation and customs clearance processes for clients.
Product Classification & Technical Parameters
3D Classification Table (Industry / Material / Part Type)
Industry Application | Material | Part Type | Remarks |
Passenger Car Industry | ADC12, A380 | Electric adjustment rearview mirror bracket, folding rearview mirror bracket, heating rearview mirror bracket | IATF 16949 compliant, high precision (±0.02mm), lightweight, compatible with mainstream passenger car models |
Commercial Vehicle Industry | A380, A356+T6 | Heavy-duty truck rearview mirror bracket, passenger car rearview mirror bracket, wide-angle rearview mirror bracket | High strength (tensile strength ≥ 310MPa), wear-resistant, corrosion-resistant, suitable for harsh working conditions |
New Energy Vehicle Industry | ADC12, High thermal conductivity aluminum alloy | NEV rearview mirror bracket (with integrated wire trough), intelligent rearview mirror bracket | Lightweight (weight reduction 15% compared to steel brackets), high thermal conductivity, compatible with electronic control systems |
Automotive Aftermarket | ADC12, A380 | Replacement rearview mirror bracket for passenger cars/commercial vehicles | Perfect match with original parts, cost-effective, short delivery cycle (10-15 working days) |
Technical Parameters Table
Parameter Item | Specification | Remarks |
Processing Precision | ±0.02mm - ±0.05mm | Achieved by high-pressure die casting + CNC precision machining; targeted at key assembly surfaces/holes of rearview mirror brackets |
Material Range | Aluminum alloy: ADC12, A380, A356, A356+T6, Custom aluminum alloys | All materials pass SGS, RoHS, REACH certification; automotive-grade materials meet IATF 16949 requirements |
Surface Treatment Options | Anodizing (natural/black/colorful), Powder coating, Passivation, Electrophoretic coating | Meet automotive corrosion resistance requirements (salt spray test ≥ 500 hours); coating adhesion ≥ 4B (ASTM D3359); color customizable |
Minimum / Maximum Size | Minimum: 30mm × 20mm × 10mm; Maximum: 300mm × 200mm × 150mm | Covers small to medium-sized rearview mirror brackets for most vehicle models; weight range: 0.1kg - 2.5kg |
Production Cycle | Sample Order: 8-12 Working Days (including mold testing); Mass Production: 15-25 Working Days | Urgent orders supported (10-18 working days for mass production); suitable for automotive parts emergency replenishment |
Common Die Casting Issues & Professional Solutions for Rearview Mirror Brackets
Common Issues | Root Causes | Our Solutions |
Dimensional Deviation of Assembly Holes | Mold wear, uneven cooling of thin-walled structure, improper die casting parameters | Use H13 heat-resistant die steel and conduct monthly mold calibration; optimize cooling system to ensure uniform cooling of bracket walls; adjust die casting parameters (reduce filling speed, increase holding pressure) and add CNC precision machining for assembly holes |
Surface Scratches & Blemishes | Rough mold surface, friction during demolding, impurities in molten aluminum | Polish mold surface to Ra ≤ 0.08μm; use high-quality die lubricants and optimize demolding process; adopt 30-50ppi ceramic foam filters to filter molten aluminum and remove impurities |
Internal Porosity Affecting Strength | Insufficient aluminum alloy refining, high moisture in die lubricants, improper gate design | Implement three-stage refining process (refining agent + online degassing + ceramic foam filtering); use low-moisture (≤0.5%) die lubricants; optimize gate design via mold flow simulation to improve gas discharge |
Assembly Gap with Rearview Mirror Body | Inaccurate overall dimensions, uneven surface of assembly plane | Strengthen full-size inspection of finished products (CMM 100% inspection); add CNC milling for assembly planes to ensure flatness (≤0.02mm/m); conduct assembly tests with client-provided mirror bodies during sample confirmation |
Our Core Competitiveness
With over 10 years of industry experience, Qingdao Xinlongji has formed five core competitive advantages to serve global clients of die-cast aluminum alloy brackets for car rearview mirrors:
Professional Technical Team: 25+ professional engineers with 5-15 years of experience, including 4 senior engineers specializing in automotive precision die casting; proficient in mold flow simulation (Moldflow) and complex precision mold design; familiar with IATF 16949 and ISO9001 standards; provide 24-hour technical response and one-stop solutions from product structure optimization to mass production.
Strong Production Capacity: 8,000+㎡ factory area, equipped with 15+ advanced fully automatic die casting machines (160-800 tons) and 50+ CNC precision machining equipment; has a dedicated production line for automotive precision components, with a monthly production capacity of 500,000+ pieces, supporting large-batch orders and urgent replenishment needs of automotive OEMs.
Strict Quality Management System: Certified by ISO9001:2015 and IATF 16949; 3 independent quality inspection workshops equipped with CMM, 3D scanners, X-ray flaw detectors, and salt spray test chambers; implement full-process quality control (IPQC, FQC, OQC) for rearview mirror brackets, ensuring 99.8% product pass rate.
Improved Supply Chain: Established long-term stable cooperation with high-quality aluminum alloy raw material suppliers in the industry; relied on Qingdao's port advantage to optimize logistics links, reducing transportation costs and shortening delivery cycles.
Comprehensive Service Guarantee: Support global shipping to 150+ countries and regions (cooperating with DHL, FedEx, Maersk); professional foreign trade and customs clearance team familiar with automotive parts export procedures (customs declaration, commodity inspection, certification); provide 1-year quality guarantee; one-stop service from mold design to finished product delivery, reducing clients' procurement and management costs.
Why Choose Qingdao Xinlongji?
Choosing Qingdao Xinlongji as your partner for die-cast aluminum alloy brackets for car rearview mirrors means gaining professionalism, precision, and reliability that meet the rigorous standards of the automotive industry. Key reasons for global client cooperation:
10+ years of focused experience in automotive aluminum die casting, with in-depth understanding of the technical requirements, quality standards, and production scheduling characteristics of the global automotive rearview mirror system industry, avoiding trial and error costs for clients' new product development.
One-stop full-chain service covering precision mold design, die casting, CNC machining, surface treatment, and assembly, ensuring consistent quality of rearview mirror brackets and simplifying clients' procurement processes.
Quantifiable quality assurance (99.8% pass rate) and authoritative certifications (IATF 16949, ISO9001), ensuring products meet the access standards of global automotive OEMs and mirror system suppliers.
Flexible customization capabilities: Support small-batch trial production (minimum order quantity 50 pieces) for new vehicle model rearview mirror development, and large-batch mass production for formal production; can customize according to clients' 3D drawings, samples and special performance requirements (high strength, corrosion resistance).
Advantageous geographical location: Located in Qingdao port city, convenient sea-air transportation shortens global delivery by 3-5 working days compared with inland manufacturers; professional logistics team provides door-to-door service, solving international transportation and customs clearance problems for clients.
Proven successful cases in serving well-known automotive mirror system suppliers in North America and Europe, with rich experience in matching automotive OEM production schedules, ensuring on-time delivery and stable supply.
Contact Us
If you have needs for custom die-cast aluminum alloy brackets for car rearview mirrors or want to learn more about our one-stop manufacturing solutions, please feel free to contact us. We will provide you with detailed product information, free quotes, and sample services within 48 hours. Looking forward to establishing a long-term and stable cooperative relationship with you to support your automotive rearview mirror system product development and production!