The main function of a magnetizer is to change the internal microstructure of a material through the process of magnetization, thus changing the magnetic properties of the material. Magnetizers can be used to manufacture a variety of magnetic materials, such as permanent magnets, soft magnets, etc. They can also be used to manufacture electronic components, motors, generators and other equipment. In the medical field, magnetizers are also used to treat cancer, heart disease and other diseases. In short, magnetizer is an important magnetic material, which is widely used in electronic, mechanical, medical and other fields.