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What CNC Precision Features Help Heat Sinks Dissipate Heat Efficiently?

CNC precision heat sinks are key thermal management components for power modules, new energy equipment and 3C electronic products. The heat dissipation performance relies heavily on the flatness of the base plate, the consistency of fin spacing and thickness, and smooth surface finish. Poor machining accuracy will cause uneven contact, thermal resistance increase and insufficient heat transfer.
We adopt high-precision CNC milling and slotting process to form dense fin structures, ensure flat contact surface, reduce thermal resistance and achieve stable and efficient heat exchange. We support custom structure design according to thermal simulation requirements, serving electronic manufacturers and new energy equipment suppliers.

Application Scenarios

  • Heat sink for power supply and power module
  • New energy equipment cooling parts
  • 3C electronic product heat dissipation structure
  • Industrial control equipment radiator
  • LED high-power heat sink
  • Semiconductor auxiliary cooling components

Core Machining Strengths

  • High flatness base plate to reduce contact thermal resistance
  • Uniform and thin fin machining to expand heat exchange area
  • Low-stress machining to avoid deformation after anodizing
  • Complex groove and cavity structure forming by CNC milling
  • Strict tolerance control for assembling and sealing matching

Available Materials

Material
Description
6061 Aluminum
Balanced thermal conductivity and machinability, general heat sink
6063 Aluminum
Excellent thermal conductivity, widely used for standard radiators
7075 Aluminum
High strength, suitable for heat sinks with structural load requirements
Copper
Ultra-high thermal conductivity, high-performance precision cooling parts

Precision Specifications

Item
Specification
Dimensional tolerance
±0.01mm
Base plate flatness
Ultra-high precision control
Fin thickness & spacing
Customized according to drawing
Machining method
3-axis / 5-axis CNC milling
Surface treatment
Clear anodizing, black anodizing, sandblasting
Contact
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