Forming & Machining of Heat Sinks

We rely on precise forming and machining technologies such as punching, bending, and milling to shape alloyed metals into the desired form.

Precise forming and machining of heat sinks – for maximum thermal conductivity and efficiency

In the forming and machining of heat sinks, quality, precision, and material expertise are key. Factors such as surface finish, temperature resistance, and hardness significantly determine the performance of the finished components. Through precisely controlled manufacturing processes, we ensure that each part meets the highest standards of heat dissipation, dimensional accuracy, and mechanical durability – for long-lasting, reliable cooling solutions even under extreme conditions.

Flow-Pressed Heat Sink Product Image 3 | Pinfin

Impact extrusion

In impact extrusion, an aluminum or copper slug flows into the cavity of the die under high pressure. Pins and fins are formed in one piece with the base plate, with no joint and no additional contact resistance. This is the process behind our Pinfin heat sinks.

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Overview of the pipe bending process at COOLTEC

Tube bending

Tube bending is an essential process in the production of liquid coolers. Tubes made of copper, aluminum, or stainless steel are bent precisely to create complex cooling structures. Temperature, bending radius, and material strength must be optimally coordinated to ensure accurate shaping without cracking.

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Machining

CNC machining plays a key role in the high-precision production of air and liquid coolers. Only through CNC processing can raw materials become customized heat sinks with precisely defined geometries. The wide range of machining options allows for maximum precision, efficiency, and quality in production.

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Find the optimal shape for your cooling solution!

Our experts work with you to develop the perfect machining and forming solution – customized, practical, and technically advanced. Every workpiece becomes a high-performance heat sink precisely tailored to your requirements.

More knowledge with COOLTEC

Laterally Pressed Fin Coolers Product Images Overview | Pressfin

Side Pressed Fin Heat Sinks

Learn how our product family enables small fin spacing and dual-sided component mounting and cooling – for compact, high-performance cooling solutions.

Surface Finishing

Read how surface finishing improves corrosion resistance and thermal conductivity in air and liquid coolers – for greater efficiency, protection, and durability.