Extrusion, Education, Plastics

Twin Screw Report-Training-Leistritz

Twin Screw Extrusion Workshop to be held Dec. 3-4, 2003
Program includes presentations by 8 outside industry experts
The Leistritz Twin Screw Extrusion Workshop provides an in-depth review of co-rotating and counterrotating twin screw extrusion theory and practices. A unique facet of the program is that classroom training is combined with "hands-on" operating experience. A partial list of topics is as follows:
· Co-rotating and counterrotating
twin screw extruder theory
· Screw design and process
techniques for mixing and devolatili-
zation
· Sequencing of multi-stage process
   operations
· Scale-up of the twin screw extrusion
   process
· Feeder and materials handling for
   pellets, powders and liquids
· Pelletizing options: strand cut,water
   ring, and underwater · Combining mixing/degassing with
direct
· extrusion for sheet, film, fibers and
profiles
· Process considerations for reactive
extrusion
· Troubleshooting twin screw
extruders and systems
· Control and monitoring options
· Computer modeling and simulation
· Screw assembly and disassembly
· Machine maintenance "Hands-on" demonstrations at Leistritz NJ process laboratory: Process Laboratory Expanded

We have greatly enhanced the capabilities in
our NJ process laboratory, which already
possessed 4 twin screw extruders and down-
stream systems for pelletizing, sheet, film
and profile. Recent additions include:
· Gas injection system for foaming
· Coextrusion for sheet and film
· Long fiber feed system for profile
development
· Underwater and air quench pelletization
· Blown film downstream capabilities
· Co-rotating and counterrotating twin
screw extruders w/ up to 1200 screw
rpm
· Devolatilization of polymers
· Downstream addition of fillers,
  fibers and additives · Direct sheet/film extrusion with gear
  pump front end
· Foam extrusion via gas injection
· Long fiber addition and processing Outside speakers will include:
· Kirk Cantor, Pennsylvania College
· Chris Case, Conair
· Adam Dreiblatt, Extrusioneering Intl.
· Keith Luker, Randcastle · Pete Palmer, Wolock & Lott
· David Todd, Polymer Processing
Institute
· Matt Upton, Maag
· Dave Wilson, K-TronUpcoming dates: December 3-4, 2003
Place: Classroom sessions are held at the Holiday Inn in Clinton, NJ, and machi-
nery demonstrations at the Leistritz Process Laboratory (10 minutes away)
Cost: $780, includes handout materials, lunches, and dinner on day 1
To register for this program or to receive a detailed agenda contact Marion
Donnelly at 908/685-2333 or e-mail to: mhdonnelly@alec-usa.com
Foam profile from ZSE-50 in the Leistritz process laboratory
Leistritz Staff Contributes to New Textbook:
Pharmaceutical Extrusion Technology

Pharmaceutical Extrusion Technology brings together, for the first time, all the technical information necessary to develop pharmaceutical dosage forms that meet current quality and regulatory requirements. 5 of the chapters were authored by Leistritz staff. Published in 2003 by Marcel-Dekker, this book was edited by Charlie Martin, General Manager of Leistritz North America, and Dr. Isaac Ghebre-Sellassie, President of Pharmaceutical Technology Solutions. For more information, or to order, go to:
www.dekker.com/servlet/product/productid/4050-5

Leistritz