Compounding

In compounding, various materials are mixed and melted—generally in an extruder of some type—then pelletized. This pelletized material is subsequently processed into a finished or semi-finished part by either molding or extrusion. Most compounding is done on twin-screw extruders of either co-rotating or counter-rotating design. Other types of equipment, such as ingle-screw extruders, kneaders and mixers, can also used to compound materials. From this zone you will be able to navigate to more specific information on single- and multiple-screw compounding.

Related Topics: Multi-Screw Compounding | Single-Screw Compounding |

Knowledge Center

Insights into plastics technologies from industry experts.

Index Dips on Weak Exports, Employment
Article

Index Dips on Weak Exports, Employment

October’s number drops from September, despite expansion in new orders.

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.
New Product Announcements
Product

Mixing: Triple-Shaft Mixer Can Pivot

 Machine can be raised from a vessel, rotate 90˚ and lowered into another vessel.