... 1000V Magnetizing of speaker,earphone,speedometer and automobile motor equipment magnets, and single magnets. Type of 1500V Multi-pole magnetizing ... motor,focus actuator,air-condition motor,and refrigeration motor equipment magnets Type of 4000V Magnetizing of large ... big servo motor and linear servo motor,and IPM motor equipment magnets. Main uses of magnetizing and demagnetizing powers Demagnetizing ...