Eddy current sorting machine is a kind of sorting technology emerging in recent years. The principle is that the variable magnetic field is formed by the high-speed rotation of the fixed magnetic field, so that the conductive body generates eddy currents perpendicular to the alternating magnetic field. Eddy current sorting machine is a technology that is caused by the eddy current of the conductive body and the mirror magnetic field relative to the induced magnetic field, which produces a repulsive force on the conductor and separates the conductor from the material.

Eddy current sorting function can solve the problem of metal sorting. In the past, in the absence of eddy current sorters, we relied on manual selection to sort metals from different industries. The price of the metal eddy current separator is not only time-consuming and laborious, but also unclear, which reduces the production efficiency. Due to the existence of eddy current sorters, automatic pickers do not require manual selection of these metal scraps in the metal processing or scrap recycling industry and metal products companies. With the use of eddy current sorters, complete production lines can be installed from iron to copper, aluminum, stainless steel, plastics and rubber, increasing separation efficiency.

The physical basis of the eddy current separator is based on two important physical phenomena: the change between the alternating magnetic field is always accompanied by the alternating electric field; A current carrying conductor generates a magnetic field. Therefore, if a conductor is exposed to an alternating magnetic field, or an alternating magnetic field formed by the rotation of a fixed magnetic field, eddy currents perpendicular to the magnetic flux of the alternating field will be generated in the conductor.

On the other hand, the mirror magnetic field which is opposite to the induced magnetic field generated by the eddy current of the conductor produces a rejection force on the conductor. For example, copper, aluminum, etc., under the action of the rejection force of the magnetic field, jump forward along the direction of transmission, which is different from other non-metals. The separation of substances achieves the purpose of classification. The main distinction is the ratio of the material's electrical conductivity to its density. The higher the ratio, the easier it is to separate. Separate the conductor from the material.