5-Axis CNC Machined 6061 Aluminum Heat Sink Optoelectronic Housing Anodized Finish
6061 Aluminum Heat Sink Housing
,5-Axis Milled Optoelectronic Housing
,Custom Thermal Housing Machining
This 6061 aluminum heat sink optoelectronic housing is a one-piece enclosure for high-power optoelectronic modules, laser diodes, imaging modules and machine vision units. It combines a sealed optical cavity with integrated thin cooling fins on the outside, so the heat generated by the module is pulled into the housing wall and dissipated without a separate heat sink.
The part is milled from a solid 6061 aluminum block on 5-axis simultaneous CNC machining centers with multi-side fixturing, so the deep inner cavity, positioning posts, threaded holes and sealing shoulder stay true to the fin base and mounting flange. Critical features are held to ±0.01mm and verified on a CMM before anodizing.
- Certified 6061 aluminum block selection with material certificate and traceability.
- 3-axis rough machining of the block, removing deep inner cavity stock while forming the integrated thin cooling fins.
- 5-axis simultaneous finishing with multi-side fixturing for cavity, positioning posts, threaded holes and sealing shoulder.
- Drilling/tapping of flange mounting holes with position verification.
- Precision deburr and surface polish, then anodizing (natural or black) for wear and corrosion protection.
- CMM full-dimension and flatness check, protective packing and photo confirmation before shipment.
Dimensional tolerance: ±0.01mm | Sealing face flatness: ≤0.02mm | Fin thickness: 0.5-1.5mm | Fin pitch: custom | Thermal conductivity: ~167 W/m·K
Thermal performance depends on fin geometry and on a flat, well-mated base. We machine the fins to a controlled thickness and uniform pitch so airflow and heat transfer stay consistent, and hold the base sealing face flat to ≤0.02mm so the housing sits squarely against the module and gasket. Sealing shoulders are machined to a custom O-ring or gasket profile for reliable, repeatable sealing of the optical cavity.
6061-T6 aluminum offers high thermal conductivity (~167 W/m·K), a good strength-to-weight ratio and stable machining, making it ideal for integrated heat sink structures. 6063 and ADC12 are available for specific thermal or cost targets. Natural or black anodizing protects against corrosion and handling wear while keeping the thermal surface clean and uniform.
Custom housings are our core business. Send STEP, IGES, STP or DWG files with your cavity, fin and sealing requirements, and our engineering team returns a DFM review within 24-48 hours. From one prototype to series production, we control the full route in-house.
- Custom fin thickness, pitch and fin height for your thermal target
- Custom inner cavity, positioning posts and component mounting layout
- Custom sealing shoulder / O-ring groove profile
- Custom material: 6061-T6, 6063, ADC12 aluminum and copper options
- Custom finish: natural / black anodize, bead blast, laser marking; low MOQ from 1 piece
Dongguan Changxinda Precision Technology Co., Ltd. (brand: China-CXD) has specialised in custom CNC precision parts and metal manufacturing since 2008. Our 90+ staff operate 4-axis and 5-axis CNC machining centers, turn-mill combined CNC lathes, CNC lathes and milling machines under an ISO 9001:2015 quality management system.
- Founded in 2008, 15+ years of precision machining know-how
- Industries served: optoelectronics, machine vision, laser equipment, automation, robotics, medical and automotive
- 200+ customers served, 50-60% of output exported worldwide
- ISO 9001:2015 certified with full material traceability
- Slogan: CNC Machining Experts, Serving Global Industries
| Prototype / sample | 7-12 working days |
|---|---|
| Small batch (10-100 pcs) | 12-18 working days |
| Mass production (100-1000 pcs) | 15-25 working days |
| Monthly supply ability | 15,000 pcs / month |
| Shipping | DHL / FedEx / UPS express, air freight, sea freight |
Reserved production slots and multi-machine capacity keep lead times predictable, so repeat orders stay on the same delivery rhythm. Shock-proof export cartons protect the cooling fins from bending, and custom branding or labelling is available on request.
- High-power laser diode and optoelectronic module housings
- Machine vision and imaging module enclosures
- Laser equipment and optical communication modules
- LED and power electronics heat sink housings
- Precision instrument and sensor enclosures
- ±0.01mm dimensional tolerance on critical features
- 5-axis simultaneous machining with multi-side fixturing
- Integrated thin cooling fins, 0.5-1.5mm thickness
- Sealing face flatness ≤0.02mm for reliable sealing
- Custom O-ring / gasket sealing shoulder
- Solid 6061 aluminum with ~167 W/m·K conductivity
- CMM-verified with full dimension report
- Natural / black anodize finishes
- Full OEM / ODM customization, low MOQ from 1 piece
- Stable and predictable delivery
A: Yes. Send your STEP, IGES, STP or DWG drawing; we machine the exact cavity, fin and sealing layout and return a DFM review within 24-48 hours.
A: We machine fins to a controlled thickness and uniform pitch and keep the base sealing face flat to ≤0.02mm so heat transfer and mating stay consistent.
A: Yes. The sealing shoulder is machined to a custom O-ring or gasket profile for reliable, repeatable sealing of the optical cavity.
A: We accept orders from 1 piece for prototypes and scale to thousands per month for series production.
A: Multi-machine capacity of 15,000 pcs per month, reserved production slots and in-process CMM checks keep lead times predictable: samples 7-12 days, small batch 12-18 days, mass production 15-25 days.
A: Natural and black anodize, plus bead blast and laser marking, chosen to match your application and appearance requirements.
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