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Plastic Pelletizing Machine is the last step of many waste plastic recycling lines, and it will receive all the problems accumulated from the washing processing. So a pelletizing extruder machine should have the following characteristics.

A feeding device: there are many kinds of feeding devices suitable for different kinds of materials; such as agglomerate before extruder for film with or without much moisture, and a force feeder to force feeding the materials; crusher before extruder and force feeder for clear PP bags; force feeder for flakes; compactor for industrial films which are left over in processing and many others.

A good venting device with or without a powerful vacuum pump to increase the degassing effect; if venting are two even better.

An oversized screen changer: because sometimes, if material has not been washed well, and this will happen, you need to get production anyway and a big screen changer helps a lot

The length (the ratio between Length of the screw and Diameter) and screw design can vary according to materials and there are very many theories about this subject.