Explanation of Frequently Asked Questions about Motor Magnetizers (Principle / Selection / Maintenance / Application)

Many motor manufacturers encounter all kinds of questions when choosing and using motor magnetizers. First of all, what is the core working principle of motor magnetizer? In fact, it is a device that generates a strong magnetic field in the magnetizing coil by instantly releasing a high voltage high current, so that the motor magnets (NdFeB, ferrite, etc.) obtain permanent magnetism. Its core logic is to use the principle of electromagnetic induction, through the capacitor storage and discharge technology, so that the magnetic domains inside the magnet steel are oriented to arrange and fixed, to ensure the stability of the magnetic performance of the motor operation.

In the selection process, enterprises are most concerned about how to choose the right equipment. Selection needs to focus on 3 core parameters: one is the magnetizing field strength, need to match the magnet material, such as neodymium iron boron magnets need a higher magnetic field; two is the magnetizing head adaptability, must be accurately matched with the motor stator / rotor size; three is the discharge frequency, which directly affects the production efficiency of automated production lines need to prioritize the selection of high-frequency models. In addition, the stability of the equipment, ease of operation and manufacturer's after-sales support can not be ignored, these are the key to ensure smooth production.

In the process of use, the motor magnetizer inevitably fails, commonly have poor magnetizing effect, equipment can not start, uneven magnetic field and other problems. When the magnetization effect is poor, you need to check whether the magnet placement position is offset, whether the magnetic field strength is up to standard; equipment can not start to check the power supply connection and capacitor storage state; uneven magnetic field may be the magnetizing coil position offset or magnet material inconsistency caused by the need to calibrate and screen the magnets in a timely manner. Daily maintenance is also very important, you need to regularly clean the equipment, test the stability of the circuit, to avoid overloaded operation, in order to extend the service life of the equipment.

There are still companies will ask, motor magnetizer is suitable for what types of motor production? In fact, it is widely used in the production of DC motors, stepper motors, brushless motors, servo motors and other types of permanent magnet motors, covering a variety of fields such as new energy vehicles, home appliances, industrial automation, medical equipment, etc. Professional manufacturers can provide customized magnetization solutions for different powers and sizes of motor magnets.