High-Performance Die Cast Aluminum Heat Sinks & Parts
Effective thermal management is the lifeline of modern high-power electronics, EVs, and telecommunications. At Moldie, we specialize in manufacturing premium aluminum die casting heat sinks designed to dissipate heat rapidly and protect critical components from overheating. By utilizing advanced high-pressure processes, our custom heat sink die casting parts feature complex fin geometries, integrated mounting structures, and superior thermal conductivity that traditional extruded profiles simply cannot achieve.
Why Choose Moldie’s Die Cast Aluminum Heat Sinks?
When standard cooling solutions fall short, our custom die cast aluminum heat sinks deliver unmatched thermal efficiency and structural integrity.
- Superior Heat Dissipation: Utilizing high-quality aluminum alloys like ADC12, A380, and AlSi9Cu3, our heat sinks offer reliable thermal conductivity combined with maximized cooling surface areas. This ensures rapid heat transfer away from sensitive Electronic Control Units (ECUs), LED lighting, and EV battery modules.
- Complex Fin Geometries: The high-pressure die casting process allows us to produce omni-directional pin-fin designs or complex cross-cut fins. These intricate shapes maximize the surface area for convective cooling—something impossible to manufacture with traditional extrusion.
- Net-Shape Manufacturing: We can integrate your die casting heat sink directly with device housings or chassis into a single, seamless component. This eliminates secondary assembly costs and significantly reduces thermal resistance at contact joints.
- Custom Surface Finishes: To further enhance thermal radiation and environmental corrosion resistance, our heat sink parts undergo tailored surface treatments, including functional hard anodizing, powder coating, sandblasting, and e-coating.
Precision Tooling for Repeatable Quality
As an ISO 9001:2015 certified manufacturer and experienced Tier 2 tooling supplier, the quality of our aluminum die casting heat sinks starts with exceptional mold design. We utilize durable LKM C50 + P20 mold bases paired with high-strength core inserts made from premium Dievar, H13, 8407, or 1.2344 steel. Complying with international HASCO, DME, and MISUMI standards, our molds undergo rigorous heat treatment (>HRC45) to guarantee dimensional stability over millions of casting cycles.
Aluminum Die Casting Heat Sink Specifications
| Mold Base | LKM C50 + P20 for AB, Cast iron etc. |
|---|---|
| Inserts(cavity and core) | Dievar, H13, 8407, 1.2344 or the material you required |
| Standard | HASCO, DME, MISUMI, PUNCH and so on |
| Product Material | ADC12, ADC14, A360, A380, AlSi9Cu3 and so on |
| Mold Treatment | Heat Treatment >HRC45 |
| Product Surface | Sand blasting, Powder coated, Painting, Anodizing, etc |
| Shape & Color | Can be design according to your needs |
| Process | High Pressure Die Casting |
| Certificated | ISO 9001:2015 Certificated |
Trade Information
| MOQ | 1 set |
|---|---|
| Mold lead time | T1 sample, about 3-10 weeks, according to the mold requirement |
| Production lead time | 2-5 weeks, according to the order Qty |
| Mold payment term | 50% T/T deposit with PO, balance 50% T/T after sample approved |
| Products payment term | 30% T/T deposit with PO, balance 70% T/T before shipment |
| Port of loading | Ningbo or Shanghai port |














