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January 30, 2026

The Importance of Electric Motors in High-Pressure Washing

Electric motors may be known for their role in allowing escalators and amusement parks to operate but are also known as the "heart" of a high-pressure machine. With this 2-minute read blog, you can learn more about the role that electric motors play in high-pressure washer systems.

From a more technical point of view, an electric motor powers the pump in a high-pressure machine. That said, an electric motor converts electrical energy into mechanical energy, which supports water pressurisation. So, in the same way that a heart pumps blood through a human body, an electric motor powers a high-pressure pump, creating the force needed to push water through the system and out the nozzle.

The choice of an electric motor will determine how long your machine can run without giving you any problems. This is why we only make use of high-quality motors with the likes of renowned companies, Nicolini & C, and Electromote. With high-quality high-pressure machines and components at the forefront of our business, it's only right that we partner with forward-thinking suppliers that are backed by over 60 years of combined expertise.

Nicolini & C, for example, is well-known for its specialisation in hollow shaft motors that use a single bearing, which ensures alignment with a high-pressure pump. This innovation is a game-changer for our industry because it reduces bearing wear and increases the performance and reliability of the motor.

CEMSA makes use of aluminium and cast iron squirrel cage, alternating current (AC) induction motors, with the squirrel cage design assisting in heat transmission. AC motors are best suited to high-pressure equipment since they require:

 

  1. Little to no servicing
  2. Only require occasional greasing

 

The electric motors in our machines range from 0.75 to 30 kW and run on between 220 and 690 volts. You can find out the voltage and kW of our machines via the specification tables on the CEMSA website.

CEMSA high-pressure washers are low torque applications with torque referring to an invisible force that makes things turn. This is because these machines only need to drive a pump to move water fast, rather than turning something heavy.

With the support of high-quality, high-pressure components from our suppliers, CEMSA is able to remain a leader in the next generation of industrial high-pressure washers. To learn more about our range of high-pressure equipment, reach out to us or your nearest CEMSA distributor.