Squirrel cage rotor for large motors

Rotor Core

The stepper motor requires the stator and rotor cores to have uniform magnetic properties and thickness directions, and the Stator Core and rotor core punching pieces are required to rotate at a certain angle, such as using traditional methods. But the production rate is relatively low, the precision is difficult to meet technical requirements.

The rotor cores we currently produce are mainly Cast Aluminum Rotors and Copper Rotors With Shafts. The lamination stacking process of the cast aluminum rotor needs to use a high-precision mandrel during the lamination process, if the rotor is skewed design, the mandrel must have a corresponding key. Just like the stacking of the stator, the Rotor Lamination cannot deviate when it is pressed by the hydraulic press, otherwise the actual size of the rotor slot will change less than the design size, which will make the magnet or conductor bars inserting more different.

Rotor core stacking process is same as the stator core stacking. Most Motor Rotor fabrication does not need welding techniques. After the rotor laminations are stacked, copper or aluminum circuits or permanent magnets will be embedded according to the design requirements. We are able to provide all types of Rotor Assembly for medium-to-high voltage motors and generators.