Extrufin Extruded heat sinks

The status quo in convection cooling. Numerous variants from standard profiles to complex customised profiles.

  • Over 500 available profiles

    We manufacture extruded heat sinks in the aluminium-magnesium-silicon alloys EN AW 6060 to EN AW 6063 from over 500 of our own or freely available tools. If a suitable profile for cooling your application is not available, we will set up a new customised profile at one of our extrusion partners in Europe or Asia.

  • Custom machining

    From machining to module assembly. Over 30 partially and fully automated 3-, 4- and 5-axis CNC machining centres enable the shortest cycle and delivery times. Various welding, soldering and bonding technologies enable the in-house production of complex heat sinks of all kinds.

  • Versatile surface coatings

    All surfaces are finished according to your specifications. From ultrasonically cleaned bright aluminium versions, chrome-6-free chromating, decorative anodised surfaces to a wide variety of galvanically and chemically produced surfaces including mill standards.

Product Examples

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Performance Optimization

The performance optimization of heat sinks maximizes heat dissipation, leading to greater efficiency and extended lifespan of electronic components. This allows devices to operate more stably and energy-efficiently, while also reducing failure rates. Optimized cooling also lowers operating costs and enhances overall performance in demanding applications.

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Integrated Heatpipes

Integrated heatpipes improve the performance of air heat sinks by efficiently transferring heat from the heat source to the cooling fins. They work by utilizing a liquid inside the heatpipe, which evaporates upon contact with the heat source and transports the heat along the pipe. The vapor then condenses in cooler areas, releasing the heat to the heat sink, where it is dissipated by airflow. This rapid and even heat distribution boosts cooling performance and prevents overheating.

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Copper Inserts as Heat Spreaders

Embedded heat spreaders, often made from alternative materials such as copper, are used to distribute heat optimally. Whether positioned directly beneath fluid-carrying circuits or in other areas, copper inserts enable more stable operating temperatures and extend the lifespan of electronic components.

Portrait of Benedikt Lausberg, Chief Executive Officer

Over 30 years ago, Antje Gornik and Martin Lausberg began producing extruded profile heat sinks and, as founders, laid the foundation for our company today. Today, profiled heat sinks are still an important part of our technology and product family.

Benedikt LausbergChief Executive Officer

Technology & Manufacturing

Extruded heat sinks are one of the most effective and common methods of heat dissipation in electronic applications. They are manufactured using the extrusion process, in which aluminium or other metallic materials are pressed through a preformed die to create complex profiles. This technique enables the production of heat sinks with specially designed fin structures that maximise surface area for heat transfer. The efficiency of extruded heat sinks is based on their ability to maximise the surface area exposed to ambient air.

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