Eriez Magnetics Europe Ltd, based in Caerphilly, South Wales and a world authority in separation technologies to the quarry and mines, recycling, metalworking and all processing industries, announces the installation of an overband permanent magnet and metal detection equipment for double protection against ferrous material at Sibelco Europe’s ball clay quarry in East Gold Works, Newton Abbot, Devon, UK.

Sibelco is a leading provider of advanced industrial minerals to the world’s ceramics, glass, foundry, construction and sports surface industries. Pete Harris, Project Manager at Sibelco’s East Gold Works explains: “We opened a new process line at the quarry last June to process quality ball clays or plastic clay. This is a rare mineral and an important component in a wide range of ceramics goods, essential to everyday life, making product purity and continuous production output paramount. As a result, we needed to ensure that all ferrous material is removed during the process.”

To support these objectives, Eriez Europe installed on the first conveyor system a TP 25/100 manual clean permanent overband magnet from its range of suspended magnets. This model was chosen for its strong twin pole magnetic field, the required suspension height and the depth of the burden. Before the crusher, a metal detector combining the Metalarm® MA3600 control unit and the Eriez Eagle® coil for higher sensitivity was installed to provide serious protection to the machinery. After further processing of the ball clay, a second metal detection system was fitted around a second conveyor in the final processing stages ensuring a metal-free product.

“The equipment was delivered as per our requirement” comments Harris. “We’ve also been delighted with the customer service received from Eriez as we experienced a minor issue with low ambient temperature affecting the sensitivity of the metal detector; however Eriez was there to rectify the situation supplying heater and thermostat. We’re now running an efficient production line delivering quality ball clay every time.”

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