How to choose the Motor for the high pressure washer

2025-09-01 09:32

1⃣Firstly, the car wash motor is divided into DC motors🔋and AC motors🔌

🔋DC motors are generally used more in lithium high pressure washer, and DC motors can be divided into two types: brush motors and  brushless motor❕

➡️❗️Brush motors❗️ As the name suggests, it is a motor with a carbon brush inside, and the advantage of this type of motor is low cost.⬇️ Very easy to use. But the defect is also obvious, because there is a carbon brush inside, meaning there is wear, and once the carbon brush is worn out, the motor is scrapped.

❌The second is the low power .🚫The low power  of the high pressure washer is destined to have a low pressure.And the third is that the heat is severe and can not work for a long time, so the brush motor is generally used in some low-end lithium-electric high pressure washer.

motor

➡️❕Brushless motor❕As the name suggests, it is an electric motor that does not have a carbon brush inside, and the advantage of this type of motor is large power.✅A small-sized brushless motor can achieve 4 to 5 kilowatts of power, and the motor power is high pressure, and the small size means that it is portable. The second is longevity.✅Because there is no carbon brush inside, the middle rotor of the motor is fitted with bearings at both ends, so long as the bearings do not damage the motor, they will not be broken. The third is low fever.✅Because the energy transformation ratio of brushless motor is high, it can reach 80% or more, the heat is naturally low, the heat means that it can work continuously for a long time. The downside is the high cost.⬆️Moreover, the non-brushed motor needs a companion drive controller commonly known as the voltage regulation, which causes the cost of the non-bristled lithium-electric high pressure washer to be much higher than the price of the brushed lithium electric car wash machine.💰It's also higher.⬆️

🔌AC motor, AC motor high pressure washer is commonly known as plug-in🔌high pressure washer, 220 volt high pressure washer, and there are two different kinds of motors within the AC motor, one is a serial motor and the other is an induction motor.

➡️Serial motors. Serial motors are a little like brush motors. They also have carbon brushes inside, except that the internal magnets use electromagnets. When electricity is turned on, they produce magnetic properties. The advantage of serial motors is that the speed is high.⬆️Very powerful⬆️For  a high pressure washer, high power and high pressure can be achieved. But the downsides are also obvious. Having a brush means wear, and although som high pressure washer can replace the carbon brush, many people don't know how to do it. The second is loudy.🔕The noise of serial electric motors is relatively large. A third fever🔥Also relatively large, because the series motor has a carbon brush, its energy conversion rate is relatively low⬇️Yes, the low conversion rate means that a large portion of the energy is converted into heat.

brush

➡️Induction motors:the induction motor do not have a carbon brush inside, and is also one of the brushless motors. The advantages are large power, long life, low noise, low heat generation, and the disadvantage is that the weight is heavy, the cost is high, and the speed is lower than that of serial motors. However, the majority of car wash machines over 3000 watts are driven by induction motors.

In summary, you can choose the right high pressure washer according to your own needs. Lithium-electric high pressure washer are recommended to prioritize those powered by brushless motors. For 220-volt high pressure washer, you can prioritize high pressure washer with induction motors.


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