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Electric motors for compressors. The power of Kolmer

Electric motors for compressors are widely used because the applications of air are almost endless. Air allows for moving small plastic components or to blow clean surfaces after they’ve been treated. All these air applications require a compressor that compresses the air and temporarily stores it in a tank.

A chiller also comes with a compressor. Instead of compressing air, this compressor does so with a refrigerant liquid. By compressing this liquid, it can be led through pipes in the cold store. The compressed liquid will evaporate in the pipe. This process requires heat, which is extracted by the compressor from the cold store. The liquid then expands again and returns to the compressor.

Compressors – Industry

Electric compressors in industrial applications
There are also industries where electric compressors of several hundred kilowatts are used, at a water treatment plant, for instance. Water purification is an intensive process, and one of the process steps is carried out using air bubbles. This is referred to as bubble aeration.

These large capacities are also found in the cooling installations of cold storage/freezer warehouses. The place where fresh produce is stored before being transported to the supermarket. And to cool these products, they use electric compressors.

The right electric compressors

Lead times of installations are very important in selecting the right electric motors for compressors. The machine start-up happens to have a big impact on the motor. Due to the heavy start-up of a chiller, the motor will have to do its very best to get the machine running. This results in a current increase for the motor.

For installations where air or liquid is compressed, it is essential that the compressors are powered by an electric motor. From small to large installations, Kolmer can offer you a solution. One of the things we look at in selecting the right electric motor for electric compressors is the nominal current: the current value shown on the motor type plate. If this current is drawn from the mains, the motor will supply a power to the shaft as indicated on the type plate. The perfect match.

The starting current is also important, because at the moment of starting the motor it can absorb a starting current of up to 700% compared to its nominal current consumption. This results in a substantial heat generation in the motor. That’s why we look at which electric motors are needed for compressors together.

Electric motors for industrial compressors in various sizes

The conventional V-belt driven reciprocating compressor is the typical place to find our 1.5kW or 2.2kW motor versions. These are the simplest electric motors for compressors. The larger electric compressors work on the basis of a rotary-screw. These are quieter in use with an increased efficiency. The refrigeration compressors are available from small to large. You can already get an electric motor for an industrial compressor from 200kW upwards.

Kolmer Electric Motors is happy to collaborate in finding the right electric motors for your electric compressor application, such as an electric motor for an industrial compressor. We translate your query into a tailor-made solution. Thanks to our optimal stock and clever logistics, you will quickly have the right power at your disposal. Please feel free to contact us for more information without any obligation.

Applications in the industry:

Compressors – Idustry


Brand loyalty is our middle name. Ever since our company was established we are well disposed towards Cantoni Motor and Cemp. Our current range consists of a large variety of electric motors and related products from these worldwide operating brands.

IE1 motors

Series Sg, Sh, SIE | Three-phase squirrel-cage induction motors, suitable for general purpose

IE2 motors

Series 2SIE | Three-phase squirrel-cage induction motors, suitable for general purpose

IE3 motors

Series 3SIE | Three-phase squirrel-cage induction motors, suitable for general purpose

IE4 motors

Series 4SIE | Three-phase squirrel-cage induction motors, suitable for general purpose

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An engine that does not flake and does not rust, that is our goal when we start an extensive research project in 2016. We develop a coating that does hold and the test results exceed all expectations. Engines keep looking great year after year, no matter the conditions. TNO is testing the safety and we are now fully in production. Kolmer Top Coating anchors itself through the paint layer in the underlying aluminum and cast iron. A water-thin, super strong layer that protects for years and can be used on all our Cantoni and a selection of EMF and Cemp engines.

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