Pressure Washer Induction and Universal Motor – Customer’s Guide

Pressure Washer Induction and Universal Motor – Customer’s Guide

A Quick Rundown About the Induction and Universal Pressure Washer Motor

Induction motors are often used in more costly commercial pressure washers, whereas universal motors are utilized in light and medium-duty household pressure washers.

The primary explanation for this is that every induction motor is significantly larger, heavier, stronger, and pricier than a universal motor. They are, nonetheless, more durable, less noisy, and have a lengthier life expectancy.

Universal motors, on the contrary, are more frequent in compact pressure washers designed for household usage. Both, nevertheless, are typical in numerous models from well-known brands.

Whilst these motors are built differently, they both work on AC from the power outlet of your home. The fundamental distinction is that the rotating assembly of an induction motor doesn’t require electrical inputs. A universal motor resembles a DC motor in appearance and utilizes brushes to supply electrical power to the rotating part, which are prone to wear and tear and require regular replacement. It has been modified, though, to allow it to operate on AC power.

Aside from the distinctions I’ve stated, an induction pressure-washer varies from a universal motor pressure-washer in a plethora of different ways. Let us have a glance at these other factors to help you decide which one to select.

The Distinctions of These Two Motors by Category

Dimensions and Mass

Induction motors are indeed massive in dimensions and mass. Universal motors are more compact and take up less space than other types of motors. Hence, a pressure-washer that’s powered by a universal motor is more small-scale and is considerably lighter.

Efficiency and Strength of the Motor

Induction motors are more energy-efficient in every aspect because they create torque using less electrical power. Furthermore, they don’t really release an abundance of heat. This is why they’re perfect for commercial-usage electric pressure-washers with considerable energy requisites. Also, the lower the running expenses, the more economical the motor is. In this category, induction beats universal.

The Operating Noise of the Motor

If it pertains to picking an electric pressure washer, the noise might or might not be a major concern, but for some individuals, it is.

An induction motor is significantly quieter than the universal. The rotors are the only active portion of an induction motor. And since it is an engine that doesn’t rely on brushes, it makes diminished perceptible noise.

Universal motors, on the contrary, contain brushes that may produce noise, which is why universal-motor-powered pressure-washers are loud. It also has a louder noise than a brushless induction motor, despite having lower power.

Quickness and Torque

When evaluating the speeds of these two genres of motors, we can see that the induction motor is indeed slow. A universal motor is extremely quick, and the friction alone is the only thing that slows them down.

The motor quickness, notwithstanding, must not be a major consideration when choosing a pressure-washer. In this scenario, universal motors outperform induction motors due to their tremendous torque at startup.

On the contrary, induction motors have a weaker starting torque. Whenever it begins to run, though, the torque increases. Induction motor pressure-cleaners must not be interrupted and restarted repeatedly.

The Lifespan of the Motor and its Components

Induction motors have a lower RPM and they customarily endure longer than universal. For industrial pressure-washers that are routinely used for severe cleanup, this shouldn’t be up for debate. Induction motors are widely utilized in power-equipment, and they may readily survive for up to a decade.

Universal motors may endure for a prolonged time, although not as prolonged as induction motors. They’ll end up burning out and necessitate repairs and upgrades. They might, nevertheless, outlive your suppositions if properly maintained. Even a universal motor’s longevity is determined by its components and overall performance.

Costs of the Motor and Pressure-Washer

Indeed, induction motors are substantially more costly than universal motors. They necessitate the use of additional commodities including copper, aluminum, and steel as well. As a result, the price of these equipment has a strong impact on the price of the pressure washer. Nowadays, they’re located in all of the top-grade equipment.

Universal motors, notwithstanding, are reasonably-priced and prevalently located in compact and mobile power equipment. They are inexpensive to fix or update. Evidently, this implies that a universal motor pressure-washer is cheaper.


Let me re-clear the salient point of this treatise; induction motors are utilized in heavyweight, and massive pressure-washers, whereas universal motors are employed in small-scale, lighter, and portable pressure-washers.

If it refers to deciding between these motor genres, it will predominantly depend on your requirements, desires, and finances. Numerous top electric pressure washers from big-name manufacturers, nevertheless, use an induction motor.

Therefore, these two motor genres have characteristics that could benefit the operator and, in turn, transform the pressure-washer to be much more functional. But if you want to gain more apprehension about these motors, inquire to an expert, learn and try what he says.

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