Ask An Expert

Get prompt answers to your specific questions about your plastics feeding 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.

Stefan Kalt, Global Business Development Manager
Plastics Compounding & Extrusion, Coperion K-Tron

Mr. Kalt is the Global Business Development Manager for Coperion K-Tron with an emphasis on Resin Compounding and End Product Extrusion. Please direct your questions in English or German to Mr. Kalt.

Read Stefan’s Bio

Stefan Kalt recently joined Coperion K-Tron as Global Business Development Manager Plastic Compounding & Extrusion. He is based in the company’s Coperion K-Tron Switzerland office.

Stefan Kalt has an extensive background in the extrusion and compounding of plastics. His experience comes from holding positions in engineering, test laboratory management, project management, key account management, product management, Director of Market Segments and Head of Business Units, all with the Maag Group over a 23 year period. He holds a degree in Mechanical Engineering from HTL Brugg-Windisch, an eMBA from Kaderschule St. Gallen and is 6-Sigma Green Belt certified.

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