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About us

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.

Tool and Machinery Protection - Increased production security and optimum machine utilisation

In plastics processing S+S metal detectors and separators are primarily employed to protect processing machinery. They help prevent breakdowns and therefore increase productivity and continuity, providing a very fast return on investment.
S+S metal separation systems protect extruders; injection and blow moulding machinery from the effects of metal contaminants in both virgin and particularly recycled granulate. Plasticizer screws and cylinders are securely protected from damage. Extruder and blow moulding machinery breakdowns and downtimes caused by blockages to melt filters and nozzle systems are considerably reduced. Injection moulding machinery is protected from damage to tooling, hot channels and reverse flow barriers.
S+S metal detectors prevent damage to milling machinery and colander rollers. For bulk material or packaged product inspection S+S units are integrated into conveyor systems.

Quality Assurance - Minimum rejected product and maximum added value

S+S metal detection and separation systems guarantee the purity of plastics products and play a vital role in the quality assurance process.
Metal contaminants can block hot channels and cause rejects through under-injection. Metal separation systems prevent this and guarantee first class products. Melt stress (encrustation) is also considerably reduced by the use of metal separators. Less rejected product means less cost and more customer satisfaction.

Professional solutions for plastics recycling

Over more than two decades S+S has become the leading manufacturers of contaminant separation and sorting systems. For the recycling industry S+S has developed a range of individual machines and complete solutions to remove contaminants from plastic and PET or to sort mixed material flows into pure fractions. They play a pivotal role in ensuring that highly pure recycled material can be profitably reprocessed back into the production cycle. In the PET industry S+S systems achieve recycling rates approaching 100%.