twin screw workshop

Leistritz Twin Screw Extrusion Workshop, December 4-5, 2019

Leistritz will host its' annual Twin Screw Extrusion Workshop on December 4-5, 2019 in NJ. As always, classroom sessions are supplemented by "hands-on" twin screw extrusion operating experience. A partial list of topics is as follows:

Day 1, Dec. 4, 2019

8:30 am Opening remarks

  • Twin Screw Extrusion Theory, Tips and Test Results- Charlie Martin, Leistritz Extrusion
  • Twin Screw Extrusion Screw Design, Processing Guidelines and Scale-up- Bill Thiele, Leistritz Extrusion 
  • Design and Application of Twin Screw Extruder Screw Elements- Brian Haight, Leistritz Extrusion
  • Material Handling and Feed Systems for TSEs- Tom Symoniak, Schenck AccuRate 
  • Downstream Pelletizing Systems- Chris Case, Reduction Engineering Scheer 
  • Melt Filtration: Advances in Automatic Screen Changer Technology- Justin Marriott, Parkinson Technologies
  • Strengthening Your Extrusion & Compounding Operations with Intelligent Manufacturing- Willem Sundblad, Oden Technologies

3:30 pm Bus departs for Demo in Leistritz Lab, Somerville, NJ

6:00 pm Reception/dinner @ Holiday Inn

Day 2 - Twin Screw Workshop Nov 29, 2018

8:00 am Opening remarks

  • Auxiliary Equipment Update - Sean Doran, ACS Group 
  • Leading Edge Polymer-Graphene Composites Leading Edge Polymer-Graphene Composites- Tom Nosker, Rutgers University 
  • Integrating Gear Pumps into Twin Screw Extrusion Systems- Matt Upton, Witte Pumps
  • Devolatilization and Foaming in Twin Screw Extruders- Niloufar Faridi, Polymer Processing Institute 
  • Introduction to Polymer Rheology and Its Applications- Bill Desrosiers, Dynisco Polymer Test
  • In-Line Process Control in Extrusion Operations- Jaime Gomez, Equitech
  • Compounding Thermoplastic Elastomers (TPEs)- Sebastian Fraas, Leistritz Germany
  • Downstream Systems Overview- Augie Machado, Leistritz Extrusion
  • Tips for Optimizing Twin Screw Extrusion Bert Elliott, Leistritz Extrusion
  • Preventative Maintenance and Component Wear Theory- Bill Novak, Leistritz Extrusion
  • Distributive Processing via PLCs: Integrating TSEs with Diverse Subsystems- Pete Palmer, Wolock & Lott

Screw assembly/disassembly session

Workshop Conclusion 4:30 pm

"Hands-on" demonstrations at Leistritz NJ process laboratory will include:

  • Co-rotating and counterrotating twin screw extruders
  • Devolatilization via extrusion: ambient, vacuum assist, multi-stage
  • Downstream addition of fillers, fibers and additives
  • Pre-mix color masterbatch
  • Direct sheet/film extrusion with gear pump front-end
  • Foam extrusion via supercritical injection

In addition to Leistritz staff, industry and academia will contribute to the program.

A hot face pelletization demo is integrated into the program.

Direct sheet extrusion with gear pump front-end attachment demo is planned.

Interactive screw design and assembly session: As an example, see this LINK.

Co-rotating and counterrotating twin screw extruder technologies are explained.

To receive a detailed program agenda please contact May Zaw at 908/685-2333 x614 or e-mail

Dates: December 4-5, 2019
Place: Classroom sessions are held at the Holiday Inn in Clinton, NJ. Equipment demonstrations are at the Leistritz Process Laboratory. Transportation is provided to/from the demonstrations.
Cost: $800 before Nov. 8th, $900 thereafter (includes handout materials, lunches, and dinner on day 1)

To download a registration form for the Twin Screw Workshop CLICK HERE.


Leistritz Extrusion 175 Meister Ave.
Somerville, NJ, 08876, USA
Tel +1 908-685-2333