Machined Heat Sink Manufacturers & Suppliers
What is Machined Heat Sink
Machined heat sinks are precision thermal components formed by CNC milling, turning, or drilling metal blocks (aluminum/copper/titanium). They achieve ±0.02mm tolerance and complex 3D geometries (e.g., curved bases, micro-fin arrays), with thermal conductivity ranging from 150W/mK (aluminum) to 400W/mK (copper). Ideal for extreme thermal management in semiconductor lasers and aerospace systems.
| Metric | Machining | Die Casting | Extrusion |
|---|---|---|---|
| Min Fin Thk | 0.1mm | 0.8mm | 1.2mm |
| Complexity | ★★★★★ (Microchannels) | ★★★☆ (Draft angles) | ★★☆ (Linear only) |
| Cost Efficiency | Low-volume | High-volume | Mid-volume |
Featured
Our advantages
- Equipped with 5-axis CNC center + slow wire cutting machine, achieving ±0.05mm accuracy.
- No mold investment required, minimum order of 5 pieces, rapid prototype verification.
- Proprietary micro-channel processing solution: minimum tool diameter 0.3mm, depth-to-width ratio of 10:1.
CUSTOMIZATION OPTIONS
| Parameter | Options | Technical Notes |
|---|---|---|
| Material | 6061-T6 Aluminum C11000 Copper Gr5 Titanium | Copper for best thermal transfer |
| Surface Finish | Electroless Nickel Hard Anodizing Micro-arc Oxidation | Hard anodize up to HV500 |
| Tolerance | ISO 2768-mK (±0.1mm) ASME Y14.5 (±0.02mm) | Aerospace projects require ASME |
| Post-Processing | Vacuum Brazing Heat Pipe Integration TIM Coating | Braze strength >200MPa |