Screw And Barrel

Screw And Barrel

The manufacturing process ensures that the screws and barrels operate under high pressure, providing a long service life and maximum performance.

  • Material-Specific Screw Geometry Design:
  • Each screw profile is engineered according to polymer type, melt behavior, feeding method, and required degassing zones, ensuring optimal melting, mixing, and pressure stability.
  • Wide Diameter and Aspect Ratio Range:
  • Manufactured in diameters from Ø15 mm to Ø220 mm with customizable L/D ratios, allowing precise adaptation to different extruder capacities and process requirements.
  • High-Grade Alloy Steel Construction:
  • Produced from selected steels compliant with DIN 8550, DIN 4340, or DIN 4140 standards, providing superior mechanical strength and thermal resistance under continuous operation.
  • Enhanced Wear and Corrosion Protection:
  • Screw flights are reinforced with hardfacing welding, while barrels undergo induction hardening or nitriding treatments to significantly improve abrasion resistance and operational lifespan.
  • Precision Manufacturing and Quality Control:
  • CNC machining, controlled heat treatment processes, and strict dimensional tolerances ensure consistent performance, long service life, and reliable operation in high-demand production lines.

Screw & Barrel – Custom Design and Durable Manufacturing for High Performance
Screws and barrels used in extruder machines are designed and manufactured with the latest technology according to the type of material to be processed, screw diameter and aspect ratio, number of degassing zones, and feeding type. This ensures the most suitable solution for every production line and capacity requirement.
Manufacturing can be done in diameters ranging from Ø15 mm to Ø220 mm according to demand. Special screw and barrel designs are developed for different plastic types such as LDPE, HDPE, PP, PS, and ABS. In production, materials conforming to DIN 8550, DIN 4340, or DIN 4140 standards are preferred upon request. Hardfacing welding is applied to the screw pitches to extend the screw life. Induction, nitriding, or long-term gas nitriding heat treatments are performed to increase the wear resistance of the barrels.
This special production process guarantees that the screws and barrels operate with high durability, long service life, and maximum performance.