
Air Heat Sinks for Efficient Heat Dissipation
Cooling issues are costing you performance and process reliability? Together, we’ll develop a solution that truly works for your system.
Contact us nowDesigns and Applications of Our Air Coolers
Whether for standard applications or specific requirements – we offer the right air heat sink for every situation. With a wide range of designs and the option for custom manufacturing, we support your project from concept to implementation.


Extruded Profile Heat Sinks | Extrufin
Extruded fin structure for efficient passive cooling.Your benefits: High efficiency, flexibility in profile selection


Side-Pressed Heat Sink | Pressfin
Side-pressed cooling fins for maximum cooling surface in minimal space.Your benefits: Robust construction, flexible integration


Bonded Fin Heat Sink | Bondfin
Bonded aluminum fins for excellent thermal performance.Your benefits: Compact design, high heat transfer


Extruded Pin-Fin Heat Sink | Pinfin
Three-dimensional pin design for maximum surface area and air contact.Your benefits: Very high cooling performance, ideal for natural convection
These customers rely on COOLTEC's cooling solutions
Technology & Function of Air Heat Sinks
Air heat sinks – also known as finned coolers or profile heat sinks – ensure efficient heat dissipation through natural or forced convection. They are mainly used for passive cooling of power electronics. Thanks to their enlarged surface area – usually in the form of fins or pins – they maximize air contact and enable reliable temperature regulation. The larger the surface area, the more effective the heat dissipation. While conventional high-performance cooling profiles often entail high tooling costs and minimum quantities, our cooling systems offer flexible profile design with cost-effective manufacturing – ideal for medium batch sizes and prototypes.
Depending on the application and requirements, passive or active cooling solutions are used. Passive cooling is particularly efficient with low power dissipation and reliable air circulation. Also Liquid cooling can be an alternative for high thermal loads.
Advantages of our Aluminum Air Heat Sinks
Aluminum is the ideal material for air heat sinks. COOLTEC aluminum air heat sinks offer improved heat dissipation thanks to anodized surface finishing and additional benefits such as:
High thermal conductivity: Perfect for efficient heat dissipation.
Lightweight and corrosion-resistant: For long-lasting and reliable cooling.
Good formability: Enables customized solutions for any application.
Sustainability & Materials in Cooling
Our air heat sinks are made from high-quality aluminum, which makes a significant contribution to sustainable electronics cooling not only due to its excellent thermal conductivity, but also due to its recyclability. Aluminum can be 100% recycled, significantly reducing the ecological footprint of our heat sinks.
We rely on environmentally friendly manufacturing processes, optimizing material usage and maximizing energy efficiency during production. In this way, we make a direct contribution to resource-saving thermal management.
Sustainability at COOLTECCalculate & Design Heat Sinks
To calculate the correct heat sink size, various factors must be considered, including:
- Power dissipation of the component
- Ambient temperature
- Airflow (natural or forced)
- Mounting type and thermal resistance
Our thermal simulation tools enable precise calculation of the optimal heat sink size and shape to ensure efficient cooling without oversizing or thermal risks.



Standard or customized – Find the perfect cooling solution with us!
Choose from over 500 proven profiles in our product database or develop a custom solution together with us. Contact us now!