The production line consists of one conical forced feeding extruder, one single screw extruder, vacuum air venting device, fast net changing device and granule cutting device. The feeding part of the extruder is enlarged. The compressor has large volume compression ratio. The vacuum suction device at the connection parts can effectively exhaust the volatizing air in the material. The waste materials can be extruded directly. This line is not only able to recycle the common plastics PP, PE, but also can recycle the foamed PS, PE, EVA, etc. Different screws are available to the different material, output.

Hard teeth surface, special reduction box (gear box); 38CrALAO nitriding barrel and screw; vacuum suction type exhaust ensures pore-free granules; non-stop net changing device; cooling water tank; blow dryer; rotary granule cutter. There is no need to add drying process; the pelletizing is working under normal temperature, one-step foamed, low costs, and yields good economic returns.