Air heat sinks

A heat sink is a component (or set of components) that dissipates heat from the system to which it is connected to the environment. It is a specially shaped lump of metal (or metal alloy) by mechanical machining, which conducts heat well. At Electris, we create air and water heat sinks. The heat sink must adhere quite tightly to the surface of the heat-producing system. If there is even a minimal gap between the elements, it is recommended to fill it with a layer of paste, glue or thermal conductive film.

Radiatory powietrzne miedziane

Materials for air heat sinks

Air heat sinks are devices used for passive cooling. The most common passive heat sinks are created from aluminum profiles cut to the appropriate length. The following aluminium alloys are usually used:

  • AW-6063;
  • AW-5754 (resistant to moisture, anti-corrosive properties);
  • AW-6082 (very strong mechanically and resistant to weather conditions).

Another commonly used material for air heat sinks is copper, which dissipates heat better (has lower thermal resistance). Copper sheets of the following types are most often used:

  • Cu-ETP (alloy with a copper content of 99.99%);
  • Cu-OF (oxygen-free, high-purity copper with good electrical and thermal conductivity, but also susceptible to plastic processing).
Radiator pasywny aluminiowy

Air heat sinks as passive cooling elements

Air heat sinks are divided into active (with a fan attached to assist in the process of heat transfer to the environment) and passive (with no moving parts). Passive heat sinks are used in the automotive industry. It can be a simple system with only a heat sink or a complex system where the heat sink will be connected to a heat pipe or a Peltier cell.

Use of heat sinks in electronics and mechanics

Air heat sinks are commonly used in electronic circuits, for example to cool integrated systems, amplifiers and refrigeration equipment. They are also used to cool electric motors, which due to the large amount of heat emitted need components to dissipate it. A well-chosen heat sink is a guarantee of proper operation of a device and may even extend the life of a given element. At Electris, we produce passive heat sinks according to technical specifications from the Customer.

  • noiseless operation
  • no power supply requirements
  • no moving parts that could wear out quickly
  • cleanliness – dust and other dirt are not deposited on them
  • failure-free operation

In order to create a passive heat sink, aluminum or copper materials are machined to provide the proper size, shape, and well bonded components. These include:

  • FIBER laser cutting
  • cutting with a water jet
  • grinding
  • FSW friction stir welding
  • 3D milling
  • 5D milling
  • leak test
  • pressing of fasteners
  • marking
  • drilling
  • threading
  • galvanization (tinning, nickel plating, silver plating, gold plating, chromating)
  • powder coating

Our offer

Copper, aluminum components, GPO-3, Mylar, Nomex insulation materials and many more.

Rush orders

Do you need ordered elements to be finished quickly? Thanks to a wide range of materials and a modern production line, we can complete large orders in a short amount of time.

Do you need prototypes?

Based on the documentation, we will transform your concept into a finished product.

Please fill out short form. Our employees will contact you soon.