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Get prompt answers to your specific questions about your plastics feeding and compounding problems, poor performance issues, expanding needs, maintenance, troubleshooting, material waste and more.

Many answers can be found in System Startup, Central System Maintenance and Troubleshooting an Established System but any question is welcome.

Sabine Schönfeld, Director of Process Technology
Plastics Compounding & Extrusion, Coperion Corporation

Read Sabine's Bio

Sabine Schönfeld is working as Director of Process Technology at Coperion in Sewell, NJ. Coperion formerly known as Werner & Pfleiderer has sold twin screw extruders for more than 60 years.

Sabine studied Process Engineering at the University of Stuttgart and started working for Werner & Pfleiderer directly after her degree in 1990.

Her first job was in the research and development department, mainly conducting trials in the test lab, focusing on chemical reactions and compounding of engineering plastics, masterbatches and PVC on the twin screw extruder. From 1993 until 2006 she was working as senior process engineer, supporting the sales team and keeping close contact with universities, participating in research projects and applying for patents. From 2006 until 2018 she worked as sales manager, responsible for sales of small and medium size machines in Europe and India. Today she is the Director of Process Technology in the test lab of Sewell NJ, taking care about process support and trials for customers in the Americas.

Please include relevant information that might influence the problem and the solution like:

  • Material handling & feeding systems
  • Gravimetric vs. Volumetric Feeding
  • In-plant pressure & vacuum transfer systems
  • Low-rate additive feeding to extruder
  • Systems design & installation
  • Feeders for customized runs
  • High speed compounding equipment & systems
  • Extrusion / Resin Production Equipment & systems