Deister Machine Co., Inc., plans to launch its new BFO-11224-EX2 mine-duty screen at ConExpo-Con/Agg 2014. The 12- x 24-ft (3.7- x 7.3-m) horizontal, single-deck unit delivers reliability and high-volume capacities in a variety of hard rock mining and mineral processing applications, the company claims. The BFO-11224 features the new Deister EX Series of geared exciters that are designed to create the force output required to drive large screens. Geared exciters feature all-steel components; specially coated bearing inner races to deter wear on shafts; and shafts that are case-hardened and ground for minimal wear. Mechanisms are sealed to minimize oil contaminants and maximize bearing life. Seals ride on replaceable ceramic-coated spacers that minimize heat and increase seal life up to 10 times that of conventional steel spacers and seals.