With the economic development and population increase, the use of waste plastics is increasing day by day, so every year will also produce a large number of waste plastics, including plastic pipe, pipeline, milk bottles, big blue barrels and so on is generally HDPE material, non-toxic, tasteless, good chemical stability and other characteristics, it is a very good renewable resources can be crushed and processed through the shredder can be made into plastic particles, into recyclable raw materials.