A die-casting heat sink is a vital component in thermal management, designed to dissipate heat efficiently from electronic and mechanical devices. These heat sinks are manufactured using high-pressure die-casting technology, ensuring superior strength, durability, and optimal thermal conductivity. They are commonly used in various industries, including automotive, LED lighting, consumer electronics, and industrial equipment, where effective heat dissipation is crucial for performance and longevity.


CNC programming and process
Material: Aluminum and Copper
CNC machined heat sinks are commonly made from aluminum or copper due to their excellent thermal properties and durability.
Aluminum
Aluminum alloys such as 6061 and 6063 are preferred for their lightweight, corrosion resistance, and good thermal conductivity. They are ideal for applications requiring a balance of performance and cost-effectiveness.
Copper
With its superior thermal conductivity, copper heat sinks are used in high-performance applications such as server cooling, high-power electronics, and aerospace systems. Although heavier and more expensive than aluminum, copper provides unmatched heat dissipation.
Product Parameter (Specification)
CNC machined heat sinks are available in various specifications to suit different applications. Key parameters include:
● Material: Aluminum 6061/6063, Copper C1100/C1020
● Manufacturing Process: CNC milling, CNC turning, and precision machining
● Thermal Conductivity: Aluminum ~200 W/m·K, Copper ~385 W/m·K
● Density: Aluminum 2.7 g/cm³, Copper 8.96 g/cm³
● Surface Finish: Anodizing, nickel plating, black oxidation, sandblasting
● Tolerance: ±0.02mm (depending on design requirements)
● Weight: Varies based on size and material, from 50g to 10kg
● Customization: Available in different sizes, shapes, and fin structures
All above specification just for reference and it can be change based customer requirements .
Product Features
High Precision
CNC machining allows for highly accurate and complex designs.
Superior Thermal Performance
Excellent heat dissipation properties for critical applications.
Durability and Strength
Resistant to corrosion, oxidation, and mechanical stress.
Flexible Design Options
Customizable shapes, sizes, and surface treatments.
Tight Tolerances
Ideal for applications requiring precision in heat dissipation.
Enhanced Surface Finish
Various finishing options improve thermal efficiency and longevity.
Applications
High-Power Electronics
Used in power amplifiers, semiconductor devices, and LED lighting.
01
Automotive Industry
Helps in cooling inverters, battery systems, and ECU components.
02
Aerospace & Defense
Ensures optimal thermal management in avionics and radar systems.
03
Telecommunications
Used in 5G base stations, servers, and network devices.
04
Industrial Machinery
Prevents overheating in power modules and automation systems.
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Production Details
The production process for CNC machined heat sinks involves several precise steps:
Material Selection and Preparation: Choosing the right aluminum or copper grade based on application needs.
CNC Machining: Using advanced CNC milling and turning processes to create precise fin structures and intricate designs.
Deburring and Surface Finishing: Removing sharp edges and applying treatments such as anodizing or plating.
Quality Control: Conducting inspections for dimensional accuracy, thermal performance, and surface quality
Final Packaging and Shipping: Securely packing heat sinks to prevent damage during transportation.
CNC machined heat sinks provide a reliable and efficient thermal management solution across multiple industries. With their high precision, superior material properties, and customization options, they are an excellent choice for applications requiring advanced cooling performance.

PowerWinx is a leading manufacturer specializing in CNC machined heat sinks. With years of expertise in precision machining, we provide high-quality aluminum and copper heat sinks tailored to various industries. Our advanced CNC technology ensures superior thermal performance, durability, and custom design flexibility to meet the unique cooling requirements of our clients worldwide.
FAQ
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