It's likely to be an induction motor (obvs no magnets) or an AC/DC motor with a field winding. (IMO)doughpat said:Settle a bet:
A reasonable sized (believe it is 2HP) router will not have any permanent magnets inside it upon tear-down. Instead, it uses an electromagnet.
Correct?
Permanent magnets are materials that can create a persistent magnetic field without the need for an external electric current. They are made of ferromagnetic materials, such as iron, nickel, and cobalt, and retain their magnetism even after being removed from the magnetic field.
Permanent magnets work by aligning the magnetic moments of their atoms in a specific direction, creating a magnetic field. This field can then interact with other magnetic fields, such as those produced by electric currents, causing forces and motion.
Yes, a router motor can have permanent magnets. In fact, many router motors, especially those used in hand-held routers, use permanent magnets to create the magnetic field necessary for the motor to function.
Using permanent magnets in a router motor has several advantages. They are compact, reliable, and require no external power source, making them ideal for hand-held power tools. They also have a long lifespan, as they do not wear out or lose their magnetism over time.
While permanent magnets have many advantages, they also have some limitations. For example, they cannot be easily controlled or regulated, unlike electromagnets, which can be turned on and off with the use of an electric current. This can limit the speed and torque control of a router motor. Additionally, permanent magnets can be expensive to produce, which can increase the cost of the router motor.