SMF series high-speed eddy current multi-purpose grinder developed by our company with foreign technology is used for fine grinding equipment in plastic, mining, chemical, metallurgical and other industries. Especially the grinding of recycled particles of thermoplastic PVC and PE plastics by processing and grinding. Practical operation in plastic products factories has proved that the chemical and physical properties of grinding powder can be kept unchanged by adding 20% to 30% of the processing formula.