Single Screw Extrusion logo


Single screw extrusion is one of the core operations in polymer processing and is also a key component in many other processing operations. The foremost goal of a single screw extrusion process is to build pressure in a polymer melt so that it can be extruded through a die or injected into a mold. Most machines are plasticating: they bring in solids in pellet or powder form and melt them as well as building pressure.

Process Schematic

(Click to enlarge)

single screw extruder


The most complete and up-to-date reference is probably:
Chris Rauwendaal, Polymer Extrusion, Hanser Publishers, New York (1990) ISBN 3-446-16080-9.

Suppliers of Single Screw Extruders

Cincinnati Milacron
Wayne Machine and Die Company

Copyright 2000, 2001