Metso’s Lokotrack ST3.5 mobile screen classifies rock-based recyclable materials with an output of about 130 ton/h (118 t/h). Originally designed to quarry aggregates needed for concrete, the transportable, compact ST3.5 offers a rugged design and ease of use. The screen features an optional vibrating grid to separate wood, plastic, and other scrap from the feed and to maintain cleanliness for screened end products in recycling or to produce quicker feeding and reduce the need to tilt the grid for cleaning when quarrying. Various grid mesh sizes adjust and control the feed size to the screen. Oversized materials separated by the grid are returned to the crushing stage. Separate remote radio controls for the mobile screen and grid allow steering and adjustment from the excavator or front-end-loader cabin.