High-dissipation Heatsinks

Constellium’s high-dissipation heat sinks utilize aluminium’s excellent natural heat conductivity properties to dissipate heat in a variety of everyday applications in the area of renewable energy, transport, electronics and electrotechnics.

Cooling off

The efficiency of a heatsink is largely determined by its surface area so that a large number of fins with small spacings is desirable. Conventionally extruded heatsinks are inadequate to meet this requirement. Constellium’s Singen plant (Germany) has therefore developed various patented shapes and manufacturing techniques for heatsinks over the past 20 years that fulfil the demand of a maximum surface area.

Maximizing conductivity

The distinctive feature of Constellium's high-dissipation heatsinks is that the baseplate and the fins are extruded separately and then assembled mechanically by means of a special tool.

Using a modified technology that allows for a clear fin spacing of 2.5 mm, partial cold pressure welding joints are achieved in addition to the mechanical bond.

Technical and cost-saving features

Constellium’s high-dissipation heatsinks manufactured to the new technology, offer substantial technical and economic advantages as a result of the following features:

• High cooling performance due to the very large surface area of the fins and small spacing between the fins
• Favourable weight/performance ratio
• Low die costs
• Numerous possibilities to adapt the system to each use
• Many variations can be achieved by combining different base and fin sections
• Partial assembly of base section is possible across the width and the length

Heatsinks with solid fins

Field of application: the heatsink is designed for free convection; however it can also be used for forced-air cooled systems as well.

Sizes outside the aforementioned values upon request:

Downloads below are zip files with product sheets available in English and German

In the interest of further technical development and for production and commercial reasons we reserve all rights to modify and complement our products without prior notice.

Heatsinks with hollow fins

Field of application: the heatsink is exclusively designed for use with forced-air cooled systems.

Sizes outside the aforementioned values upon request:

Downloads below are zip files with product sheets available in English and German

In the interest of further technical development and for production and commercial reasons we reserve all rights to modify and complement our products without prior notice.