Product Advantage
Superior Heat Dissipation for Motor Longevity: Aluminum’s high thermal conductivity (160-180W/(m·K)) and optimized shell structure (integrated heat fins, smooth inner surface) accelerate heat transfer from motor windings to the environment. For a 10kW industrial motor, this reduces operating temperature by 15-20℃, extending motor service life by 3-5 years and cutting downtime due to overheating by 40%.
Lightweight Design & Energy Efficiency: At 2.7g/cm³ density, the aluminum shell is 65% lighter than cast iron and 30% lighter than stainless steel. For EVs, this reduces vehicle curb weight by 50-80kg per motor, boosting range by 5-8km per charge. For industrial motors, lighter shells lower mounting bracket load, reducing maintenance costs by 20%.
High Customization Flexibility: Precision extrusion supports diverse cross-sections—cylindrical for standard motors, square for compact spaces, and irregular designs with integrated mounting flanges for custom equipment. CNC machining ensures ±0.03mm tolerance for shaft holes, wiring ports, and sensor cutouts, fitting non-standard motor layouts without extra modifications.
Industrial-Grade Corrosion & Impact Resistance: The 12-20μm hard anodized (or powder-coated) surface withstands 1000 hours of neutral salt spray testing (ASTM B117), resisting industrial oils, coolants, and humid environments. The alloy’s impact toughness (≥10kJ/m²) handles accidental collisions during installation, making it suitable for factory floors and EV under-hoods.
Cost-Effective Mass Production: Extrusion technology enables high-volume output (up to 600m/h) with lower tooling costs than casting. Standard shells cost 25% less than cast iron alternatives, while custom designs require minimal die adjustments—lead time is just 7-10 working days for small-batch orders (MOQ 50 pieces).
Technical Parameters
Parameter | Specification | Unit | Test Standard |
Material | 6063-T5, 6061-T6 Aluminum Alloy | - | ASTM B221 |
Cross-Section Type | Cylindrical, Square, Irregular (Customizable) | - | Customer Requirement |
Length (Customizable) | 100 - 800 | mm | GB/T 6892 |
Wall Thickness | 1.5 - 5 | mm | IEC 60034 |
Inner Diameter (Cylindrical) | 50 - 300 | mm | Customer Requirement |
Surface Treatment | Hard Anodizing (12-20μm), Powder Coating (50-80μm) | - | ASTM B928 |
Surface Hardness (Anodized) | ≥250 | HV | ASTM E384 |
Tensile Strength (6063-T5) | ≥210 | MPa | ASTM B557 |
Tensile Strength (6061-T6) | ≥276 | MPa | ASTM B557 |
Thermal Conductivity | 160 - 180 | W/(m·K) | ASTM E1461 |
Corrosion Resistance | ≥1000 | Hours (Salt Spray Test) | ASTM B117 |
Impact Toughness (23℃) | ≥10 | kJ/m² | ASTM E23 |
Dimensional Tolerance | ±0.03 | mm | ISO 2768-1 |
Compatible Motor Power | 0.5 - 50 | kW | IEC 60034 |
Operating Temperature Range | -40 ~ 120 | ℃ | GB/T 3194 |
Product Uses
1. EV Drive Motors: Cylindrical 6061-T6 shells with heat fins house 5-50kW EV drive motors. Lightweight properties reduce EV weight, while corrosion resistance withstands road salt and under-hood moisture—ideal for electric cars, buses, and trucks.
2. Industrial Servo Motors: Square 6063-T5 shells with pre-drilled holes fit 1-10kW servo motors for CNC machines and robots. Compact design saves space, and efficient heat dissipation ensures stable 24/7 operation during high-load machining.
3. HVAC Motors: Powder-coated aluminum shells with IP65 protection integrate into 0.5-5kW HVAC fan motors. Corrosion resistance resists humid environments, and customizable ports fit wiring/sensors—suitable for air conditioners and ventilation systems.
4. Household Appliance Motors: Thin-wall (1.5-2mm) shells are used in 0.1-1kW motors for washing machines and refrigerators. Lightweight design reduces appliance weight by 30%, while smooth anodization enhances product aesthetics.
Product Operate Guide
Pre-Installation Prep: Confirm shell specs (cross-section, holes) match the motor. Clean the shell with isopropyl alcohol to remove oil, ensuring strong gasket adhesion.
Assembly Steps: Insert motor windings/rotors, align the shaft with the shell hole. Secure end caps with M3-M5 screws (torque 3-8N·m) and apply heat-resistant sealant. Test motor operation to confirm no abnormal noise.
Maintenance Tips: Clean the shell monthly with a soft cloth. For industrial use, inspect the anodized surface quarterly—touch up scratches with anti-corrosion paint.
FAQ
1. Q: Can the shell handle high-temperature motors (e.g., 150℃)?
A: Yes. We offer a 7075-T6 version with ceramic coating, maintaining 90% strength at 150℃. Lead time is 8-12 working days.
2. Q: What’s the MOQ for custom shells?
A: MOQ is 50 pieces for custom designs. Standard shells have no MOQ and ship in 3-5 days.
3. Q: How to fix shell deformation from vibration?
A: Use anti-vibration gaskets during installation. For severe deformation, replace with 6061-T6 reinforced shells—our team provides on-site support.
4. Q: Do you offer IP-rated shells for outdoor use?
A: Yes. IP65/IP67 shells with rubber gaskets suit outdoor motors (e.g., solar pumps). IP67 versions withstand 1m submersion for 30 minutes (lead time 5-7 days).
5. Q: What warranty is provided?
A: A 2-year warranty for the shell body and 1-year for surface treatments. For manufacturing defects, we offer free replacement or rework.
