PT ZONE: Compounding

PT Article Maag Buys Gala, RE Scheer
New powerhouse in pelletizers. More (+)
Large & Medium-Sized Plants Expand
Smaller operations might be struggling, but the heart of the industry is growing. More (+)


Slideshow: Extrusion 2015

Did you make it to Charlotte for Extrusion 2015? If you were among the 350-plus or not, check out the event slideshow.

Solve Venting Problems on Twin-Screw Compounding Extruders

Compounds must be free of voids and volatiles or else the material will cause subsequent processing problems. Here’s how to ensure your venting is effective.

Breaking the Downward Slide?

Processing market seems to have stabilized.

Maag Buys Gala

Both companies project 'perfect fit.' Each make underwater pelletizers and centrifugal dryers.

Clock is Ticking: Register for Extrusion 2015 by Friday and Save

  Have you registered yet for Plastics Technology’s upcoming Extrusion 2015 Conference?

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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.

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» Blending & Dosing

Is dosing good enough? Do I need a Blender? Let Maguire walk you through the basics, process integration and more.


» Plastics Conveying

Watch video, download datasheets and more in the Plastics Conveying Knowledge Center.

» Plastics Drying

Novatec shares their knowledge of dryers and drying techniques.

» Purging Compound

Sooner or later you will need to purge your machine. Which material should you use to purge your screw and barrel?

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