The exploitation of mineral resources has led to the decrease of non-renewable resources. The rising price of raw materials has greatly impacted the cost market and brought inconvenience to our life. Therefore, the recycling of non-renewable resources is imminent. 60% recyclable and renewable resource is from the recycling resource in the world, it's an important point to resolve these resources. The eddy current sorting machine is also called a non-ferrous metal sorting machine, an eddy current sorting machine, a copper-aluminum sorting machine, etc. It is mainly used for the recovery of non-ferrous metals( such as copper, aluminium, zinc, etc) from industrial and domestic waste, and the sorting range of non-ferrous metals with a particle size greater than or equal to 2 square millimeters . The sorting rate could reach 99%.