Rotary tensioning system increases uptime of Astec mobile high frequency screen
Astec Industries has launched a mobile high frequency screening plant, the GT2612V.
The plant features a 2612V Vari-Vibe high frequency screen. The two-deck, six by 12-foot (1.8 by 3.7 metre) screen uses a rotary tensioning system that allows for a quicker screen media change, giving producers more uptime. The 2612V also has deck-mounted, variable speed hydraulic vibrators, a hydraulic mechanism for varying operating angles, a fines collecting hopper, top and bottom deck discharge chutes, and an aggregate spreader. The high frequency screen can quickly and efficiently size crushed stone, recycled asphalt pavement, sand, gravel, coal, and a variety of other materials.
The GT2612V is manufactured on a welded steel main frame with a channel cross-section. A walkway around the screen and remote grease lubrication for ground-level access make maintenance ideal.
The plant includes a large hopper with a capacity of eight cubic yards that is equipped with six-inch (15.2 cm) sloped grizzly openings and a remote tipping grid. The hopper also includes foldable wings and hydraulic support legs. The variable-speed, 48-inch (122 cm) wide belt feeder features a high-torque hydraulic drive, full-length impact bed, rubber lagged head pulley, and self-cleaning wing tail pulley.
The screen plant is equipped with four conveyors: a delivery conveyor, two side conveyors, and a fines conveyor. All conveyors feature a variable-speed hydraulic drive and easily fold for transport.
The GT2612V is powered by a Caterpillar Tier 4 Final, 136 hp (101.4 kW) engine, while engine-mounted hydraulic pumps operate all plant functions. The plant includes a PLC control system with pendant remote controls for the tracks.
Additional options for the GT2612V mobile plant include engine alternatives (Caterpillar Tier 3 and Stage V), a 15-foot (4.6 m) hopper/feeder in lieu of standard for additional capacity, a heavier-duty grizzly section with replaceable grouser bar cartridge, vibrating grid, bridge breaker, vinyl dust cover, standard steel screen cloth, engine enclosure filter kit, engine block heater, immersion heater, wireless track remote, telematics system, auto-grease system, and more.