The main indicators for judging a copper wire granulation machine are the purity of copper and plastic particles, power consumption, environmental protection and production costs. There are many types of copper recycling machines in China, and the quality grades are so different. The main problems are the small-scale workshops and processed copper rice has low purity and can not be used directly as recycled copper. In addition, the residual copper in waste plastics is higher, which not only reduce the copper recycling rate and the grade of waste plastics, also cause pollution to the environment. Most of them are not perfect for use.