Sandvik’s new QA331 portable, three-way split screener features a 14- by 5-foot, two-bearing screen box with an increased 6-degree screening angle built into the bottom deck of the screen. Other features include a larger screening surface area, increased throw on the screen box, an I-beam design for maximum durability, a folding access walkway around the screen box to provide easy access for maintenance, a 7-cubic-meter-capacity hopper with a radio-controlled tipping reject grid, and a main conveyor fitted with a 1,050-millimeter heavy-duty belt. The unit’s tracks are 500 millimeters wide.
Screen Machine says its new patented Spyder 512T portable screening plant opens up a new size class of machine. The plant has the same engineered features as its predecessor, the 516T. Features include a 5-foot by 12-foot double-deck, two-bearing screen; Grade 80 high-strength steel construction; and the ability to place materials in windrows in three different sizes with remote operation.
According to Inertia, its new prototype 620 Spec Maker portable screening plant offers a compact design for portability on its own triple-axle chassis, yet delivers 20 percent more screening capacity compared to standard models. The unit features a 6- by 20-foot double-deck, inclined screen; its own onboard fold-down feeding, transfer, side discharge, and stacking conveyors; and a 48-inch belt feeder with hopper and grizzly. It can be combined with any crushing plant in the company’s line to create a closed-circuit operation, without the need for additional transfer conveyors.
Metso says its new Lokotrack ST3.5 can produce two-sized fractions, with an optional two-deck vibrating grid that can be installed to yield three-sized fractions. The unit features an 11-foot, 7-inch by 5-foot screen box with a 57-square-foot screen area and is powered by a 100-horsepower Cat 4.4 engine. Four identical meshes are used on the screen to lower stock requirements.