Magnetic separator is a device that uses the magnetic difference of materials to separate them in an uneven magnetic field. It is widely used in many fields such as mineral processing (ore dressing), coal washing, non-metallic mineral purification, metallurgy, building materials, chemicals, food, medicine, garbage disposal and waste material recycling. It is mainly used to separate magnetic minerals (such as magnetite, titanomagnetite, pyrrhotite, etc.) from non-magnetic minerals, or to remove ferromagnetic impurities (iron removal) in raw materials.

Understanding the principles and functions of different types of magnetic separators is essential for the efficient and economical application of magnetic separation technology in fields such as mineral processing, material purification, environmental protection and resource recovery.
There are many types of magnetic separators, which can be classified mainly from the following aspects.