Permanent magnet motors refer to those motors which utilize permanent magnetic field to instead excitation windings. Permanent magnet excitation is not merely able to decrease power consumption, but also can improve the running performance of the motor. In fact, two-thirds of the rare earth permanent magnet are applied to manufacture various kinds of permanent magnet motors. Permanent magnet motors are widely applied to aerospace, energy resource, electronic information and household appliance industries. Permanent magnet motors are mainly composed of the rotor and stator. Besides conventional motor magnets, SDM Magnetics has also collected much experience in magnetic rotor assemblies.

About Magnetic Rotor Assemblies

As one of the most representative magnetic assemblies, rotor assemblies are consists of iron part and permanent magnet. Actually, sintered Neodymium magnet, sintered Samarium Cobalt magnet, bonded magnet, and sintered ferrite magnet are all can be used for rotor assemblies according to different application, motor type and assembly process. It should be noted that laminated magnets made by magnet segmentation technology are also served to assemblies to decrease the eddy current loss.