Multi-Screw Compounding

Most materials today are compounded on multi- (usually twin-) screw compounding extruders. Most of these machines feature co-rotating, intermeshing screws, though there are applications in which counter-rotating, intermeshing or non-intermeshing machines are used. Extruders with more than two screws have been developed for applications requiring more intense devolatilization and reactive processing.

Knowledge Center

Insights into plastics technologies from industry experts.

Strand Pelletizing: Follow These Steps to Determine Your Water Bath Length
Article

Strand Pelletizing: Follow These Steps to Determine Your Water Bath Length

Use heat-transfer equations as a shortcut to get you in the ballpark of how long your pelletizing water bath should be.
Article

K 2019 Preview: Green's the Theme in Extrusion & Compounding

Themes of sustainability and the Circular Economy will be visible at the booths of many suppliers of extrusion and compounding equipment—film, in particular.
New Product Announcements
Product

Compounding: More Digital Solutions Come to Compounding

New GUI, ‘smart machine’ features, user friendly app highlight Coperion’s display at K 2019.