APPLICATION FOCUS: THERMAL MANAGEMENT

Custom Heat Sinks

Keep your high-power electronics cool. We manufacture custom heat sinks tailored to your exact thermal and mechanical requirements, from single prototypes to production volumes.

Build Your Custom Heatsink

A custom CNC milled heatsink with a black anodized finish

Why Choose a Custom Machined Heat Sink?

While off-the-shelf extruded heat sinks are good for many applications, a custom CNC machined heat sink offers unparalleled performance and design flexibility.

Optimized Fin Design

Machining allows for complex fin geometries, pin fins, and variable fin densities that can be optimized through thermal simulation to maximize surface area and cooling performance.

Integrated Features

We can machine the heat sink as an integral part of your product's enclosure, adding mounting holes, threaded features, and pockets for components in a single, robust piece.

Superior Thermal Interface

A precisely machined, flat base provides the best possible thermal contact with your heat-generating components (like CPUs or LEDs), maximizing heat transfer.

Materials for Thermal Conductivity

The material choice is critical for performance.

Aluminum 6061 & 6063: The industry standard for heat sinks. They offer excellent thermal conductivity at a low cost and weight.
Copper C110: The premium choice. Copper offers approximately 60% higher thermal conductivity than aluminum, making it the best choice for high-power, compact applications where maximum heat dissipation is required.

Finishing Options

Anodizing (Black): Black anodizing is the most common finish for aluminum heat sinks. The black surface significantly improves the emissivity of the heat sink, increasing its efficiency at radiating heat to the surrounding air.
Chromate Conversion Coating: Provides corrosion resistance while maintaining electrical conductivity for grounding.

A high-performance heatsink base machined from pure copper

Custom Heatsink FAQ

What is a "fin aspect ratio"?

This is the ratio of the fin's height to its thickness. Machining very tall, thin fins is challenging due to tool access and vibration. A typical maximum aspect ratio for machined heat sinks is around 10:1, though higher is possible with specialized techniques.

Is copper always better than aluminum for a heat sink?

Not always. While copper is a better conductor, it is much heavier and more expensive. For many applications, a slightly larger, well-designed aluminum heat sink with good airflow can provide more than adequate cooling at a much lower cost and weight.