Metso’s Lokotrack ST3.5 has proven its efficiency in a screening project involving rock-based recycle materials in Italy. In Pollenza, south of Rimini, ST3.5 classifies difficult, rock-based recycle materials with a capacity of about 1,000 tons/working day. Thanks to the optional vibrating grid, the screened end products remain consistently very clean. Re.i.cal., a family-owned company, operates a stationary quarry for producing aggregates needed for concrete. A few years ago the company expanded its operations to recycling. An optional, vibrating grid is available for the Lokotrack ST3.5. In quarrying, it results in quicker feeding and reduces the need to tilt the grid for cleaning. In recycling, the main benefit is in securing the cleanness of the end products. With the ST3.5 mobile screen, the upper screen deck houses a 30 mm mesh size, and the lower deck 5 mm. Oversized materials separated by the grid are returned to the crushing stage. Fed by the small Italian shredder, the output in recycling is about 130 tons per hour. The Lokotrack ST3.5 used by Re.i.cal. also features separate remote radio controls for the mobile screen and the vibrating grid, allowing total steering and adjustment of the screening process easily from the excavator or front-end-loader cabins. www.metso.com

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