Co-extrusion machine design allows integration of recycled content, fillers


As window profile extrusion moves towards greater use of recyclables and fillers, KraussMaffei Berstorff has responded with coextrusion models where a parallel twin-screw extruder can extrude profiles cores and outer layers with a mix of virgin and recycled resin plus fillers. The recently launched KMD 53 K/P model completes the series of conical twin-screw extruders for the medium output range and extends the wide range of coextrusion solutions, according to the Munich based machinery supplier.

Peter Oswald, director of the Profile Extrusion Product Group at KraussMaffei Berstorff, said the machine combinations in the series are well suited for window profile production based on core technology, layer technology, and combination technology....
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