The Evolution of Twin Screw Extruder

The first twin screw extruder was born in Italy in 1930s. During late 60s and early 70s, it got a rapid evolution. Intermeshing counter rotating twin screw extruder was developed with the progress of RPVC products while intermeshing co rotating twin screw extruder was developed with the modification process of polymers. It is a consensus all around the world that the extrusion theory is behind the actual application.