Screw For Extruder

Screw

The most advanced metalworking technologies and machine tools are used by Harden in the precision manufacture of the parallel twin-screws.Screw configurations were developed which ensure optimal processing characteristics for the particular application.

Profile Extrusion
Fully frighted variable pitch screws are used which process impact modified PVC with minimal stress and yield perfectly homogenous extrudates.

Sheet Extrusion
Configuration and make of the sheet screws ensure perfect homogenisation of the melt, a crucial capability in sheet production. Screws for sheet applications made from stainless steel.

Screw Flight coating
Molybdenum coating of all screw wearing surfaces is standard. Fully automatic advanced plasma techniques  to ensure extreme resistance to wear and tear.

Pipe Extrusion
The large number of flights in the pre-heating zone of the pipe screws creates the kind of large internal surface area which ensures that the required energy can be input without excessive compression and stress on the material.

screw barrel

parallel Twin Screw

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