A DC pump motor is a staple across manufacturing, construction, mining, and many more industries. They have lots of ranges, applications, and sizes, from teeny-tiny motors in medical equipment to ones generating thousands of horsepower.
Brushed and brushless are the two most common types of DC motors. The physics of how they work are similar, but their design and performance output are very different. Brushed motors are widespread, but brushless motors are becoming more popular. Although they both convert electronic energy into mechanical energy, they still have many differences between them. Read below to find out more.
Brushless DC pumps can generate more torque per watt than their brushed pump counterparts. They also have a high torque-to-weight ratio. This is one of the most appreciated advantages of brushless vs. brushed DC pump motors. Specific models of brushless pumps can generate even higher amounts of torque when they slow down.
Brushless motors have a better design that makes them more dependable. Conduction cools the motors; they don’t need airflow inside the motor to cool off. This means internal parts are entirely closed in, staying protected from dirt and other irritants.
There’s less electromagnetic interference, and brushless pumps can handle some environments better because they emit less sparks.
Because of their lack of brushes, brushless pumps don’t have any commutator erosion. The lifespan of brushed motors depends on the life of their brushes, which can be hard to predict. Brushless motors, on the other hand, last as long as their bearings. They’re more predictable and typically last for tens of thousands of hours. However, there may be some applications where the high lifespan of a brushless motor isn’t important.
Brushless motors have a more compact and straightforward design than their predecessors. Due to the lack of brushes, they make fewer vibrations, which makes them quieter. Healthcare industries value this because patient comfort is essential. The brushless motors also don’t have any ionizing sparks from the commutator.
Another advantage of brushless pump motors is that they can operate at higher speeds compared to brushed motors. This is helpful when supporting grinders, cutters, and blowers. Brushless motors can come in multi-pole varieties; this limits their speed but dramatically increases their torque.
There are many advantages of brushless vs. brushed DC pump motors. However, it’s likely every single one won’t be relevant to your situation. Find what works for you.