Astec Industries’ Materials Solutions Group has designed and launched its new portable high-frequency screen plant, the PTSC2818VM. The company said the plant’s innovative design and size is the first of its kind for the industry, featuring an 8-ft-wide high-frequency screen.
The new PTSC plant is equipped with a 2.4 x 5.5 m top deck and a 2.4 x 3.7 m bottom deck. The screen design has externally-mounted vibrators at the ends of the tappets for a more aggressive screening action. This innovative design creates a higher G-force and reduces heat load from material to motors as compared to single, centre-mounted vibrators. It also allows for easier maintenance and adjustments.
The screen is equipped with hydraulic operating angle adjustment, a fines collection hopper, top- and bottom-deck discharge chutes and an aggregate spreader.
Similar to other PTSC plants, the 2818VM features a nominal 137.16 x 1,158.2 cm delivery conveyor with hydraulic drive and full-length skirtboards. The chassis is fitted with manually-operating support legs, outriggers for additional support and folding walkways along the screen.
The new portable plant is available with a variety of options, including steel screen cloth, vinyl dust cover, hydraulic levelling jacks, immersion heaters for hydraulic reservoirs, starters for three off-plant conveyors and more.