The Leading Journal for the Tyre Recycling Sector

The Leading Journal for the Tyre Recycling Sector

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KraussMaffei Devulcanising

The offer for recycling was a ZE co-rotating twin screw extruder used in a process developed by Russian company Rubberint. Ltd.

German engineering firm KraussMaffei present  at Tire Tech 2019 at Hannover

Gerard Nijman explained how, using a feedstock of 500 micron powder the co-rotating twin screw extruder blends the rubber under different screw rates and with the use of an additive devulcanises the rubber. It is claimed that the process breaks the sulphur links and retains long chain polymers, so better maintaining the characteristics of the original rubber.

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