Brush Vs Brushless Motors

Turning My Old Wood Saw Into a Metal Cutting Saw

LA Cutting Products is happy to announce we are now offering a plug n play speed controller. With our new speed controller you can take your old wood cutting machine that has a brushed motor and slow down the machine to cut metal with a turn of a knob.

Band Speed is a critical element to metal cutting. If your speed is to fast, a metal cutting blade can lose all the teeth within a few cuts. (Learn How This happens)

What is the difference?

The principle behind the internal working of both a brushless DC motor and a brushed DC motor are essentially the same. When the motor windings become energized, a temporary magnetic field is created that repels and/or attracts against permanent magnets. This force is converted into shaft rotation, which allows the motor to do work. As the shaft rotates, electric current is routed to different sets of windings, maintaining electromotive repulsion/attraction, forcing the rotor to continually turn.

Construction Differences:

Brush motors inside electric motors are used to deliver current to the motor windings through commutator contacts.

Brushless motors have none of these current-carrying commutators. The field inside a brushless motor is switched via an amplifier triggered by a commutating encoder, such as an optical encoder.

Windings are on the rotor (rotating part of motor) for brush motors and on the stator (stationary part of motor) for brushless motors.

Brushed Motors

Brushless Motors