This 2022 Astec GT205MF is a used screener — also commonly referred to as a screening plant — designed to separate and classify crushed stone, aggregate, and other quarried materials by size. Astec is a well-established manufacturer of heavy equipment for the aggregate, mining, and road-building industries, producing a broad range of crushing, screening, and material-handling machinery.
The screening unit is built around a 2520 Multi Frequency incline screen fitted with a 5-foot by 20-foot top deck and a 5-foot by 18-foot bottom deck, delivering two-stage classification in a compact tracked configuration. Material is fed through a 15-foot hopper equipped with a heavy-duty grizzly featuring replaceable grouser bar cartridges, which protects the screen decks from oversized material. A hydraulic remote tipping grid further controls feed and allows the operator to clear blockages remotely. Feed rate is regulated by a nominal 48-inch by 13-foot variable-speed belt feeder.
Conveying capacity is handled by a full suite of onboard belts. A single 42-inch by 36-foot delivery conveyor handles primary product discharge, while two 30-inch by 28-foot side conveyors manage mid-fraction stockpiling. A dedicated 48-inch by 24-foot fines conveyor removes the finest fraction separately, keeping product streams clean and well-defined.
Power comes from a Caterpillar C4.4 Tier 4 Final diesel engine rated at 136 horsepower. The engine drives hydraulic pumps mounted directly to the block, which power all plant functions including tracks, conveyors, and the screen itself. The hydraulic system is supported by a 170-gallon reservoir with return filters and a dedicated oil cooler to maintain stable operating temperatures. A 100-gallon onboard fuel tank extends run time between fills, and an engine block heater is included for cold-weather starting.
Machine control is handled by a PLC system with a color display, giving the operator clear visibility of plant functions. An hour meter and emergency stops are fitted as standard safety provisions. A wireless track remote allows the operator to position the machine from a safe distance. The GT205MF is located in Arizona, USA, and is offered at $385,000.
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