Pit & Quarry, July 2015

EQUIPMENT FOCUS SCREENING Vibrating screen minimizes structural vibration Haver Boeckers Tyler F class vibrating screen offers a solution for challenging screening applications that require minimal vibration transmission during operation This allows for multiple machine use within the same building or structure without the same reinforcing measures required to house traditional vibrating screens The F class also works in screening situations that require consistent load independent performance at constant g force in all operational modes Featuring reliable four bearing technology the vibrating screen minimizes structural vibration and delivers consistent stroke which two bearing screens cannot provide and with the right media choice it eliminates blinding and pegging The F class is designed to scalp and classify ores minerals stones sand and gravel The vibrating screen features an eccentric shaft design that is supported by four high performance double spherical roller bearings The double eccentric shaft creates a constant positive stroke that handles material volume spikes without losing momentum As the eccentric shaft turns the screen body follows the shaft movement Designed for high tonnage outputs the F class can process as much as 5000 tph while providing fast accurate sizing of any material ranging in cut sizes from 6 in to 20 mesh To provide maximum versatility the F class can operate with as many as three screen decks and it features inclines from 15 to 25 degrees www havercanada com Polydeck Screen Corp s Polydex modular polyurethane screen media can provide an effective solution for tough screening situations Polydeck employees help customers analyze their screening operations to select one of the companys more than 1000 screen media design options that fit their operation best Polydexs 1 ft x 1 ft screen panels coupled with its PipeTop II stringer system work best in wet applications The screen panels can extend Deister Machine Co s BFO 11224 EX2 mine duty screen features the EX series of geared exciters The BFO 11224 EX2 horizontal wear life increase open area and reduce maintenance costs Polydeck also offers Rubberdex modular rubber screen panels in 1 ft x 2 ft sizes for dry applications and Armadex bolt down rubber screen sections up to 48 in x 96 in for top deck scalping applications www polydeckscreen com Screen media comes in 1000 design options single deck screen measures 12 ft x 24 ft Deisters EX series exciters create the force output required to drive large screens The geared exciters feature all steel components coated bearing inner races to deter shaft wear and case hardened shafts Mechanisms are sealed to minimize oil contaminants and maximize bearing life The seals ride on replaceable ceramic coated spacers to increase seal life www deistermachine com Sandviks SK circular motion screens operate with heavy duty medium and fine screening applications SK circular motion inclined screens work best after primary and secondary crushing as a splitter screen to divide flows within a plant and for final screening The SK circular motion screens feature drive assembly and modular mechanism for quick servicing and maintenance They also come in a number of options and use long lasting components to decrease maintenance costs and downtime www sandvik com Mine duty screen includes geared exciters Circular motion screens for final screening operations www pitandquarry com July 2015 PIT QUARRY 23