The rotating part of a DC motor is called the rotor. The rotor is composed of an iron core laminated with a slotted silicon steel sheet, a rotor winding coil, a rotor shaft and a commutator. In order to obtain sufficient torque, the current passing through the armature winding is relatively large. Therefore, the rotor winding adopts thick rectangular bare copper enameled wire to be wound into a forming winding.

The following describes the related process of rotor manufacturing

1.Rotor inserting machine

2. Hairpin coil manufacturing

3. Rotor embedding machine

4. rotor spot welding machine

The auto starter rotor making process video