Folded Fin Heat Sinks

Thin, light, thermally efficient — a proven forced-air solution.

Folded fin heat sinks use a continuous strip of copper or aluminium folded into a fin geometry and bonded to a base plate. The result is a lightweight structure with excellent air-side heat transfer for its mass.

Product range

The product range

A closer look at the materials we supply.

Continuous folded fin
Continuous folded fin

A single strip of aluminium or copper folded into a high aspect ratio fin geometry.

Bonded to custom base
Bonded to custom base

Fin stack soldered or epoxy bonded to a machined base tailored to your components.

High-performance assemblies
High-performance assemblies

Thin fin stock and tight pitch deliver strong forced-air performance in a small form factor.

Efficient airflow

Fin channels tuned for low pressure drop with strong heat transfer.

Low weight

Thin fin stock keeps overall mass down — important for aerospace and portable systems.

Flexible base sizes

Fin arrays can be bonded to bases of almost any size to suit your enclosure.

Copper or aluminium

Choose the material and thickness combination that best fits your thermal and cost targets.

Reliable construction

Brazed or epoxy-bonded assemblies with proven long-term performance.

Combine with heat pipes

Add heat pipes or vapour chambers into the base to further reduce spreading resistance.

Key benefits

  • Lightweight construction
  • Wide range of fin heights and pitches
  • Copper or aluminium options
  • Suits forced convection
Applications

Where this technology performs

We work with OEMs and research teams across the most demanding sectors — engineering thermal solutions that hold up in the field.

Aerospace avionicsRugged commsEV invertersRack-mount electronicsLED lighting

Let's solve your thermal challenge together

Every application is different. Share your specification and our engineers will recommend the right approach — from a standard product to a fully bespoke design.

All solutions

Prefer to call? Reach our engineering team on 01252 851133