Rauwendaal Extrusion engineering, Inc.
Rauwendaal Extrusion Engineering, Inc. 530.269.1082

A Polymer Process Engineering & Training Company Home of the CRD Mixing Screws

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Blown Film Extrusion Seminar This seminar has filled up each year.  Be sure to register early!
by Dr. Kirk Cantor

October 25 & 26, 2017
D. R. Joseph, Inc.
921 W. Harris Rd.
Arlington, Texas, 76001

Printable Outline and Scannable Registration Form, which you can email to Sietske@rauwendaal.com.  We will send you an invoice and you can  use the custom payment area on our home page to make a payment with a credit card or use a PO# and send us a check.-->  

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4001 Scots Legacy Dr, Arlington, TX 76015

Phone: (817) 467-7756


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Phone: (817) 784-8750


Residence Inn South

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Courtyard Dallas Arlington South

711 Highlander Boulevard
Arlington, Texas 76015


For Seminar Questions contact: Sietske Rauwendaal 530-269-1082 or sietske@rauwendaal.com

About the Seminar

This two-day program provides a broad overview of blown film extrusion, including materials, hardware, and processing methods.  The computer-based “Blown Film Extrusion Simulator” will be demonstrated during the program.  Attendees are encouraged to bring laptops, as they will be provided exercises with which to use the software.  Upon completion of this seminar, attendees will be able to:

What the attendees will learn:

Who should attend:

Testimonials from previous courses


Seminar Hours & Cancellation Policy

Course Description
  • Introduction to Blown Film Extrusion
  • Extrusion Fundamentals Overview
    • Hardware Systems
    • Functional Zones
  • Introduction to Polymers
    • Polymer basics
    • Polymeric materials
    • Rheology – understanding flow
  • Film properties
  • Blown Film Hardware
    • Upstream (Solids Feeding)
    • Grooved Feed Throat
    • Screws for blown film
    • Blown Film Dies
      • Side Fed Die
      • Bottom Fed Die
      • Spiral Mandrel Die
      • Co-extrusion Dies
      • Oscillating Dies
    • Bubble Geometry
    • Bubble Cooling
    • Bubble Stabilization
    • Collapsing Frames
    • Haul-off
    • Winders
    • Film Treatment
    • Line Control

1st Day Workshop: "Introduction to Blown Film Extrusion"

  • Blown Film Processing
    • Process Variables vs. Bubble Geometry
    • Simulator Exercise I
    • Process/Structure/Property Relationship
    • Simulator Exercise II
  • Co-extrusion
    • Dies
    • Interfacial Instability
    • Applications
  • Troubleshooting
    • Extruder Problems
      • Surging
      • High Melt Temperature
      • Excessive Cooling
      • Low Output
    • Film Problems
      • Melt Fracture
      • Thickness Variation
      • Bubble Instabilities
      • Wrinkles
      • Die Lines
      • Gels
      • Low Mechanical Properties
      • Poor Optical Properties


2nd Day Workshop: "Blown Film Troubleshooting "

Course Description (continued)

Suggested Reading for this seminar:

Books authored by Kirk Cantor:

Books authored by Chris Rauwendaal:

  • Understanding Extrusion
  • Polymer Extrusion
  • Troubleshooting the Extrusion Process
  • SPC in Injection Molding and Extrusion
  • Polymer Mixing
  • Mixing in Polymer Processing

When ordering books from Hanser Publications use the code RAU2014 for a 25% discount