The big challenge in PET recycling is that bottles or flakes must be separated to provide unmixed and contaminant-free output materials. S+S has developed solutions that separate contaminants from PET material flows and sort these material flows into unmixed fractions. Using state-of-the-art sorting technology that is able to separate huge mass flows into various secondary raw materials in a very short time is an important element for an economically efficient recycling process. At the PETpoint 2011 S+S presented the FLAKE PURIFIER multi-sensor sorting system. Based on a modular concept the Flake Purifier combines up to three sensors for contaminant detection. In addition to sensors for metal and colour separation, S+S has also equipped the Flake Purifier with a high-performance module for the detection of contaminants which also include different plastic types. The system thus for example removes PVC parts or bio plastics such as PLA from PET flakes.
S+S is one of the world's leading manufacturers and developers of inspection, separation and sorting systems. S+S systems are used in process, packaging and production lines throughout industry and in the specialized preparation of materials for recycling.