
Extrusion Process Engineering and Troubleshooting
Seminar
October 6 – 8, 2026
Buffalo NY
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Presented By:
John Perdikoulias has over 40 years of practical Extrusion experience designing extruder screws, profile dies and multi-layer dies for film and sheet


Timothy Womer has over 50 years of practical Extrusion experience having designed of 8,000 screws for just about every extrusion process.
Back by popular demand, this 3-day seminar teaches how to engineer and troubleshoot an extrusion process and to avoid (or solve) many problems that can occur. The presenters have over 90 years of combined extrusion processes engineering experience and knowledge; much of which will be shared during the seminar.
Cost: $1,950 per person
($1,650 before September 11, 2026)
Includes a 3-Month Trial license of the Virtual Extrusion Laboratory™ (VEL™) Material Properties module, which will be demonstrated during the seminar.
This is a practical and “no-nonsense” seminar that will provide information that can be used immediately to help improve your design or process. We will cover Material Properties, Design Criteria, The Extruder, Dies, Coextrusion, Cooling and best operating practices. Register before September 11, 2026 and save $300 per person.
Click Here to Register
Polymer Rheology: The seminar begins with an introduction to polymer rheology and the most important material properties/characteristics that affect the extrusion process. Participants will gain valuable knowledge on how to select materials for their process or how specific material properties are considered during the design or engineering of the equipment.


Design Criteria: Once polymer rheology is understood, the various design criteria will be explained along with recommended values or limits to avoid problems such a polymer stagnation and degradation..
Single Screw Extruder: Since the extruder is responsible for the quality of the melt that is delivered to the process, a significant amount of the seminar deals with understanding the extruder and various screw designs. Various types of mixing elements will also be discussed. The relationship between polymer rheology and screw design will be explained in detail.


Extrusion Dies: The seminar will also present the various types of extrusion dies from Flat, to Annular to Profile. We will cover flow balancing and coextrusion recommendations while providing some specific design criteria for each.
Cooling: There will be a section devoted to cooling of the polymer melt and what needs to be considered for maximum production rates and optimum product quality. The topic of “Frozen Stresses” will be covered to explain why some products fail after installation.


Operation and Degradation: The seminar will finish with combination of what was presented into best operating practice recommendations for avoiding polymer stagnation and degradation. Recommended stratagies for purging, shut down and start up will be presented to help minimize waste and possible polymer degradation.