Product Overview
Motor housing heatsink is an extruded aluminum cylinder with axial cooling fins on the outside and a precision bore inside — the stator presses in, fins throw the heat out.
Used on BLDC motors, hub motors and servo drives, the one-piece housing replaces fabricated steel covers with a lighter, cooler and better-looking shell. Anodized red, black or natural.
Key Features
- Housing + heatsink in one — press-in stator, fins do the cooling
- Precision bore — honed inner diameter for stator fit
- Lighter than steel — about 60% weight saving
- Color anodizing — red / black / natural for product branding
- Custom dies — bore, fin shape and mounts from your drawing
Application Scenarios
Finned motor housings serve electric drive products:
- BLDC & servo motors — passive cooling for drives
- E-bike & scooter hub motors — finned rim-side heat rejection
- Power tools — durable finned gear housings
- Pumps & compressors — cooled motor shells
Configuration Options
- Alloy — 6063-T5
- Inner bore — 25-200 mm by die
- Fin height — 5-30 mm
- Finish — natural / black / red anodized
- Machining — bearing seats, threads, sensor pockets
- Length — cut to motor stack
Product Specifications
| Alloy | 6063-T5 |
| Bore tolerance | H7 honed |
| Fin height | 5-30 mm |
| Finish | anodized 8-15 um |
| Roundness | <=0.05 mm machined seats |
| Certificates | ISO 9001 / SGS |
All products are manufactured in our ISO 9001 certified factory and carry CE / SGS certification. Custom requirements are welcome.
Quality Certifications
Ruhai Material is ISO 9001 certified and ships products compliant with CE and SGS requirements worldwide. Material certificates and test reports are available with each shipment.
Frequently Asked Questions
What is the MOQ?
MOQ is 200 kg per profile; housing projects usually start at 500-1000 pcs.
Can you match my stator size?
Yes, send the stator drawing; we quote a custom die with matching bore and mounting features.
What is the lead time?
15-25 days for new die projects; 7-15 days for repeat orders.
Do you machine bearing seats?
Yes, CNC bearing seats and threads to your print.
Which alloy is best for motors?
6063-T5 for conductivity and extrudability; 6061-T6 where strength dominates.
Request a Quote
Send us your specifications, quantity and target port — our sales team replies within 24 hours with a detailed quotation. Send an inquiry now.
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