The High-Speed-S-Trader with floating screw-sleeve is an alternative extrusion concept with solid-melt-separation. A 35 mm screw conveys the resin into a 60 mm screw sleeve. Inside the sleeve the material is plasticizied and discharged into the outer screw channel of the sleeve through radial bores. Only the solid bed remains inside. The development of a melt pool - and thus a decrease of the plasticizing capacity - is avoided. Due to the lower speed of the screw sleeve molten material is conveyed to a Dynamic Mixing Ring in a gentle manner. Experimental results and theoretical background will be described in this paper.
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