Plastic extrusion is a manufacturing process in which raw plastic materials are heated to their melting points and formed into continuous profiles. This process is ideal for high volume production, and can be used to make a wide range of extruded plastic products, from tubing and weather stripping to fence panels, plastic films, and wire insulation.
Plastic Extrusion Process
To create extruded plastic products, raw thermoplastic resin (in the form of small beads) is gravity fed from a hopper into the barrel of an extrusion machine. The plastic material then enters the machine itself through an opening called the feed throat, and is forced by a rotating screw mechanism through a heated barrel. In the barrel, the material encounters temperatures above its melting point (anywhere from 392°F to 527 
