Difference between single screw extruder and twin screw extruder
Single screw extruder
The single shaft shredder is a small to medium-sized industrial shredder equipped with only one shaft with a rotating blade, widely used in waste plastic recycling, paper, and wood shredding, electronic waste recycling.
Twin screw extruder is developed on the basis of single screw extruder, which avoids the disadvantages of single screw extruder such as poor feeding and poor plasticization. In a double screw extruder, the raw material is added by the feeding device through the feeding port, and some additive materials also need to be added through the feeding port in the middle of the barrel, and the materials are melted and conveyed by the double screw to reach the machine out of the head opening die.
Single screw extruder is one of the important molding methods for plastic molding processing. The material is formed from the extruder by heating, mixing, and pressurizing, and then continued passing through the mouth die in a flowing state. Most thermoplastics and rubbers can be processed by this method. It is widely used in petrochemical, machinery manufacturing, agriculture, construction and etc.
PET bottle washing line is used to mechanically separate the non-PET cap, seat bottom, label, and other impurities from the packaged PET plastic bottles, and then crushed, washed, and processed into non-polluting PET flakes, which can be made into recycled pellets for making other PET products, or sold to chemical fiber manufacturers.You can sell it at a reasonable profit.
Plastic film washing line is to process loose or baled plastic film into clean plastic film sheets through the process of shredding, cleaning, and drying. And the clean film can be recycled into plastic pellets. You can sell it at a reasonable profit. Whether it’s polypropylene (PP), polyethylene (PE), or other plastic films, agricultural mulch films, greenhouse films, packaging films, cling films, etc., our fully automated lines can meet your requirements.
Plastic film recycling machines include plastic film washing machines and plastic film pelletizing machines. The purpose of the plastic film washing line is to remove impurities from the plastic film and to shred large pieces of film into smaller pieces, resulting in clean plastic film sheets of appropriate size. The function of plastic film pelletizing line is to extrude, cool, dry, cut and finally make clean pellets from film sheets.
Single screw extruder
Single-shaft shredder versus double-shaft shredder The shredder is an indispensable and important presence for the solid waste resource recycling industry. Because, the shredder can greatly