Made for your next design.
Custom CNC Machined Aluminium Heat Sink
Custom CNC Machined Aluminium Heat Sink
Precision CNC machined aluminium heat sink produced to your drawing with tight dimensional control, a machined mounting interface and your choice of surface finish.
Product Overview
This heat sink is machined from an extruded aluminium profile and then CNC finished to drawing. The extrusion provides the fin geometry and the material density that effective heat transfer requires; the machining operation establishes the critical features — base flatness, mounting hole position and the device interface.
Typical applications
- Power electronics cooling
- Industrial inverter and drive heatsinking
- LED driver thermal management
- Telecom and networking equipment
Specifications
| Material | Aluminium 6063-T5 / 6061-T6 / 6060 |
| Process | Aluminium extrusion + CNC machining |
| Machining Tolerance | +/- 0.05 mm on critical features |
| Base Flatness | 0.05 - 0.10 mm |
| Fin Thickness | 0.8 - 3.0 mm (custom) |
| Fin Pitch | 2.0 - 12.0 mm (custom) |
| Fin Height | 10 - 80 mm |
| Surface Roughness | Ra 0.8 - 1.6 um as machined |
| Thermal Conductivity | Approx. 200 W/m.K (6063-T5) |
| Surface Finish | Clear anodizing / black anodizing / sandblasting / brushing / polishing / powder coating |
| Secondary Operations | Drilling, tapping, countersinking, chamfering, laser marking |
| Quality System | ISO 9001 / IATF 16949 |
| Inspection | Calibrated gauges, CMM, dimensional report on request |
| MOQ | 100 pieces (lower quantity for sampling) |
| Sample Lead Time | 3 - 7 days |
| Production Lead Time | 45 - 60 days |
| Packing | Carton with protective foam; palletized for sea freight |
| Origin | Dongguan, Guangdong, China |
Specifications are indicative and are finalised against your drawing or sample. Where a requirement falls outside the ranges shown, contact us to confirm feasibility before design freeze.
Manufacturing Capability
In-house process chain
Extrusion, die casting, CNC machining, stamping, anodizing, powder coating and laser marking are performed in our own 12,000 m² facility. Fewer handovers means fewer places for schedule and quality to slip.
Tooling under our control
Extrusion dies, die casting moulds and stamping dies are designed and manufactured in our own tool room, which shortens tooling lead time and allows manufacturability issues to be raised before the tool is cut.
Quality system
ISO 9001, ISO 14001 and IATF 16949 certified. Materials are traceable to heat number, gauges are calibrated on a defined cycle, and dimensional reports are available on request.
Built for OEM programs
We manufacture to your drawings and samples. We are not a design house, which means our focus stays on producing your part accurately, repeatedly and at a competitive cost.
Quality Control
How to Order
- Send your requirementDrawing or 3D model, material, quantity and any critical or cosmetic requirements.
- Quotation and DFM feedbackWe quote with a stated validity period and flag any manufacturability or tolerance concerns before you commit.
- SamplingSamples are produced through the normal production process, typically within 3 to 7 days, with dimensional data where required.
- Approval and toolingOn sample approval we finalise tooling. Tooling is designed and manufactured in-house.
- Bulk productionProduction typically runs 45 to 60 days, with progress reported through the run.
- Inspection and shipmentFinal inspection, packing for export, documentation issued and shipment arranged by sea, air or express.
Frequently Asked Questions
What tolerance can you hold on machined features?
Do you manufacture to our drawings?
Can you sign an NDA before we share drawings?
How do I get a quotation?
What are your sample and production lead times?
What payment and shipping terms do you support?
Request a quotation for Custom CNC Machined Aluminium Heat Sink
Send your drawing, material specification and target quantity. We will respond with pricing, a realistic lead time and any manufacturability notes you should know before committing.
Email [email protected]Dongguan Zhigao Industrial Co., Ltd. · Dalang Town, Dongguan, Guangdong, China · +86 134 3115 9972 · https://www.zhigaothermal.com
Each component is quoted against the agreed drawing, material, finish and quantity. Samples and production schedules are confirmed for your project. Air, sea and express shipping can be arranged; contact our team to confirm packing, destination and trade terms.
