Die-cast Magnesium Alloy Motor Housing | 10+ Years Expertise in Magnesium Alloy Casting Components
With over 10 years of focused experience in magnesium alloy casting components, we are a professional integrated manufacturer and foreign trade enterprise, specializing in high-precision die-cast magnesium alloy motor housing and customized magnesium alloy casting parts. Our profound mastery of magnesium alloy material characteristics and die-casting technology enables us to deliver products that excel in lightweight performance, heat dissipation, and structural integrity—core advantages that have made us a trusted partner for global clients in new energy vehicles, industrial machinery, and electrical equipment sectors. We integrate mature production capabilities with international trade expertise, ensuring seamless cooperation from technical communication to global delivery.
Core Product: Die-cast Magnesium Alloy Motor Housing
Our die-cast magnesium alloy motor housing is engineered to meet the critical requirements of motor operation: providing reliable protection for internal components, efficient heat dissipation to extend motor lifespan, and stable structural support for high-speed rotation. Leveraging 10+ years of magnesium alloy die-casting experience, we optimize the product structure to maximize the unique advantages of magnesium alloy—35% lighter than aluminum alloy, 40% higher thermal conductivity than steel, and excellent impact resistance—effectively solving the industry pain points of heavy traditional motor housings, poor heat dissipation, and insufficient durability.
Core functions include: sealing protection against dust and moisture, integrated heat dissipation fins for rapid temperature reduction, and precise mounting interfaces for easy assembly. Widely applied in new energy vehicle drive motors, industrial servo motors, household appliance motors, and power tool motors, all products come with strict quality assurance and comply with international standards such as ASTM and EN.
Detailed Production Process of Die-cast Magnesium Alloy Motor Housing
We adhere to a standardized and visualized production process to ensure product consistency and quality. The core process of die-cast magnesium alloy motor housing includes 8 key steps, with strict quality control at each stage:
Raw Material Inspection & Preparation: Select high-purity magnesium alloy ingots (AZ91D, AM60B, etc.) that meet ASTM B94 standards. Conduct 100% incoming inspection for material composition and purity using spectral analysis equipment to eliminate inferior raw materials.
Magnesium Alloy Melting: Put qualified ingots into a professional melting furnace, heat to 650-700℃ under the protection of SF6+CO2 mixed gas to prevent oxidation. Use rotary degassing technology to remove impurities and gas from the molten metal, ensuring molten metal cleanliness.
Die Casting Molding: Inject the molten magnesium alloy into precision molds at high pressure (120-150MPa) and high speed (3-5m/s) using advanced cold-chamber die-casting machines. The mold is preheated to 180-220℃ to ensure uniform filling and avoid cold shut defects. The die-casting cycle is precisely controlled within 20-40 seconds according to product size.
Demolding & Trimming: After the molten metal solidifies (10-15 seconds), the mold opens automatically to take out the casting. Remove gate, runner, and burrs using CNC trimming machines to ensure the initial shape of the motor housing.
Heat Treatment: Perform T6 heat treatment (solution treatment + artificial aging) on the casting to improve mechanical properties—solution treatment at 415℃ for 4 hours, followed by water quenching, and artificial aging at 168℃ for 8 hours. This process enhances the tensile strength and hardness of the housing.
Precision Machining: Use 20+ sets of high-precision CNC machining centers to process key surfaces and interfaces (mounting holes, shaft holes, etc.). The machining process strictly follows the technical drawings, ensuring dimensional accuracy and geometric tolerance requirements.
Surface Treatment: Implement customized surface treatment according to customer needs to enhance corrosion resistance and appearance. Common processes include anodizing, powder coating, and chemical conversion coating. Each surface-treated product undergoes a salt spray test to verify corrosion resistance.
Finished Product Inspection & Packaging: Conduct comprehensive inspection of the finished motor housing, including dimensional measurement (using 3D coordinate measuring machines), appearance inspection, and mechanical property testing. Qualified products are packaged with anti-scratch and anti-rust materials, ready for delivery.
In addition to the core die-casting process, we also provide supporting processes such as CNC turning, milling, drilling, and assembly to meet one-stop production needs of customers.
Product Classification (Industry/Material/Part Type)
Industry Application | Material | Part Type | Core Advantages | Remarks |
New Energy Vehicles | Magnesium Alloy (AZ91D, ZK60A) | Drive Motor Housing, Generator Housing | Lightweight, High Heat Dissipation, Impact Resistant | Meet automotive industry standards (IATF16949); customizable for different vehicle models |
Industrial Machinery | Magnesium Alloy (AM60B, AM50A) | Servo Motor Housing, Reducer Housing | High Precision, Wear Resistant, Stable Structure | Suitable for high-speed and heavy-load working conditions; load-bearing capacity up to 500kg |
Household Appliances | Magnesium Alloy (AZ91D, AZ31B) | Air Conditioner Motor Housing, Washing Machine Motor Housing | Lightweight, Low Noise, Corrosion Resistant | Mass production available; short delivery cycle (15-20 working days) |
Power Tools | Magnesium Alloy (AZ61A, AM60B) | Drill Motor Housing, Grinder Motor Housing | Compact Structure, Impact Resistant, Easy to Carry | Customizable small-size housings; surface treatment supports color matching |
Technical Specifications
Parameter Type | Detailed Specification | Remarks |
Machining Precision | Dimensional Tolerance: ±0.02mm; Geometric Tolerance: ISO 8062-CT5; Surface Roughness: Ra ≤ 0.8μm | Guaranteed by high-precision CNC machining equipment and 3D coordinate measuring machines |
Material Range | Magnesium Alloy: AZ91D, AM60B, AM50A, AZ31B, AZ61A, ZK60A; All materials comply with ASTM B94 standard | Provide material test certificate (MTC) for each batch of products |
Surface Treatment Options | 1. Anodizing (Natural, Black, Colorful); 2. Powder Coating (RAL 9005, RAL 9010, Custom Colors); 3. Chemical Conversion Coating; 4. Electroplating (Nickel, Chrome) | Salt spray test: ≥48 hours (anodizing); ≥72 hours (powder coating) |
Minimum/Maximum Size | Minimum Size: 5mm × 3mm × 2mm; Maximum Size: 1200mm × 800mm × 600mm | Sizes beyond the range are available with professional technical evaluation and mold customization |
Production Cycle | Sample Order: 5-7 Working Days; Mass Production (1000-10000 Pcs): 15-25 Working Days; Bulk Order (>10000 Pcs): Negotiable | Expedited production service available (3-5 working days for samples) with additional confirmation |
Common Magnesium Alloy Die-casting Problems & Solutions
Based on our 10+ years of practical experience in magnesium alloy die-casting, we have summarized the most common problems in motor housing production and formulated targeted solutions to ensure product quality:
Common Problems | Root Causes | Our Solutions |
Gas Porosity in Castings | Insufficient degassing of molten metal, excessive moisture in mold or raw materials, improper die-casting parameters | Optimize rotary degassing process (extend degassing time to 15-20 minutes); preheat molds and raw materials to remove moisture; adjust die-casting pressure and speed to avoid turbulent filling |
Cold Shut & Misrun | Low molten metal temperature, insufficient injection speed, poor mold filling design | Strictly control molten metal temperature at 650-700℃; increase injection speed appropriately; optimize mold gate and runner design to ensure smooth filling |
Dimensional Deviation of Mounting Holes | Mold deformation, uneven cooling, inaccurate machining parameters | Use high-temperature resistant mold steel and conduct regular mold maintenance; optimize mold cooling channel design for uniform cooling; calibrate CNC machining parameters daily and use 3D inspection for verification |
Poor Heat Dissipation Performance | Unreasonable heat dissipation fin design, uneven material structure | Optimize heat dissipation fin structure (increase fin density and height) through simulation analysis; improve melting and die-casting processes to ensure uniform material structure and enhance thermal conductivity |
Our Core Competitiveness (10+ Years of Professionalism)
Our long-term focus on magnesium alloy casting has built five core advantages that distinguish us from competitors, providing reliable guarantees for global B2B cooperation:
Professional Technical Team: A team of 35+ professional engineers with 8+ years of experience in magnesium alloy die-casting, covering material research, mold design, process optimization, and quality control. We provide one-stop technical solutions, including product structure optimization and mold development, and have obtained 5 national patents related to magnesium alloy casting technology.
Strong Production Capacity: Covering a production area of 8,000 square meters, equipped with 30+ sets of advanced equipment (15 cold-chamber die-casting machines, 20+ CNC machining centers, 3 3D coordinate measuring machines), with an annual production capacity of 5 million magnesium alloy casting parts, supporting large-batch and continuous order requirements.
Strict Quality Management System: Passed ISO9001:2015 and IATF16949 quality system certifications. We establish a full-process quality control system—raw material inspection, in-process inspection (3 key inspection points), and finished product inspection—with a product qualification rate of 99.8%.
Improved Supply Chain: Long-term strategic cooperation with 10+ well-known magnesium alloy raw material suppliers, ensuring stable supply and consistent quality of raw materials. We have established a supply chain risk prevention mechanism to respond to raw material shortages and price fluctuations, ensuring on-time delivery.
Comprehensive Global Service Capability: Supporting global shipping (sea, air, express) with long-term cooperation with international logistics giants such as DHL, FedEx, and Maersk, providing door-to-door service and customs clearance documents. We offer a 12-month quality guarantee service; our professional after-sales team responds to customer inquiries and complaints within 24 hours.
Why Choose Us as Your Magnesium Alloy Casting Partner?
In the fiercely competitive global magnesium alloy casting market, choosing us means choosing professional, efficient, and reliable cooperation. Here are the key reasons for global customers to cooperate with us:
10+ years of focused experience: We deeply understand the characteristics of magnesium alloy and the technical difficulties of die-casting, which can avoid common quality problems and improve production efficiency.
Quantifiable quality assurance: Third-party quality system certifications and full-process inspection ensure that products meet international standards, reducing your quality risks and after-sales costs.
Customized one-stop service: From technical communication, mold development, sample production to mass production and delivery, we provide integrated services to save your time and communication costs.
Stable supply and delivery: Strong production capacity and improved supply chain ensure that even large-batch orders can be delivered on time, helping you seize market opportunities.
Professional foreign trade service: Our team is familiar with international trade rules and customs clearance processes of various countries, providing accurate and complete documents to ensure smooth customs clearance.
We are committed to becoming a long-term strategic partner for global customers in the magnesium alloy casting field. Whether you need standard die-cast motor housings or customized magnesium alloy casting parts, please contact us today. We will provide you with a detailed quotation and technical solution within 12 hour
