Twin Barrel

Extrusion Twin Barrel

Extrusion twin barrel sets come with replaceable liners and accurate centre-distance control. A 120-hour nitriding cycle gives a 0.6 mm effective depth, with an optional full-length bimetallic sleeve and a twin-part barrel design for convenient replacement.

Frequently Asked Questions

• 01What are the types of twin‑barrel extruders?

  The conventional types are conical twin screw and parallel twin screw.

• 02What is the function of a twin barrel in a twin screw extruder?

  The twin barrel provides the processing chamber around the two screws and determines the internal flow geometry of the extrusion system.

• 03What materials can cause accelerated wear in twin screw barrels?

  Glass fiber, mineral fillers, flame retardants, and other abrasive or corrosive additives can accelerate barrel wear depending on the formulation and operating conditions.

• 04How can barrel wear affect twin screw extrusion?

  Wear can increase the clearance between the screws and barrel, reducing conveying and mixing efficiency and potentially affecting output and process stability.

• 05What's the common steel material used for twin screw barrels?

  Rootier supplies bimetallic and fully‑hardened twin barrels for improved wear resistance.