Rock Products

NOV 2012

Rock Products is the aggregates industry's leading source for market analysis and technology solutions, delivering critical content focusing on aggregates-processing equipment; operational efficiencies; management best practices; comprehensive market

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n Comprehensive health and safety program based on best practices gathered from our service opera‐ tions around the globe. n Trained and supervised workforce. n Complete on‐site tire management and maintenance. n Specialty service vehicles and equipment. n Proprietary systems and custom tool design. n Corrective tire repair, retreading, rotation. n Systems adapted to local cultural and business needs. Kal Tire's safe work practices and core safe work procedures have set the standards for tire service in the mining industry globally, for others to follow. Kal Tire, Liebherr The Liebherr L 586 wheel loader on display at MINExpo features 335 hp (250 kW), an operating weight of 70,000 lb. (31,750 kg) and a tipping load of 43,607 lb. (19,780 kg). KPI-JCI The new KPI‐JCI FT300DF track‐ mounted crushing plant features the quarry‐proven Kodiak Plus K300+ cone crusher, offering both maximum crushing performance and exceptional portability. Capable of producing up to 460 tph, the FT300DF also features a compact de‐ sign, making the machines easy to transport. The FT300DF's self‐con‐ tained track drive allows it to be simply driven off the transport trailer and begin crushing immediately, allowing operators to spend time in production instead of site preparation. "The FT300DF is perfect for customers looking for an extremely heavy‐duty, durable machine," said Jeff Lininger, product manager for Johnson Crushers International, Inc. (KPI‐JCI). "At the same time, it's incredibly portable, making it easy for producers to quickly relocate as needed." The FT300DF can be equipped with an The loader is equipped with a 7.9 cu. yd. (6 cu. m) rehandling bucket. Suitable for quarry, load and carry as well as general re‐handling and truck loading, the L 586 offers unmatched performance and effi‐ ciency. Multiple bucket and machine configuration options are available to suit any application. Like all Liebherr wheel loaders, the L 586 is exceptionally fuel‐efficient. Up to 25 percent less fuel consumption com‐ pared to similar equipped competitive machines reduces the customer's over‐ all operating cost and the equipment's environmental impact. The drive technology is a further opti‐ mization of the hydrostatic travel drive. The drive technology is based on one gear with two different sized hydraulic motors, as demand requires, at least one of the hydraulic motors is engaged when accelerating or decelerating; the wheel loader smoothly adapts itself to the required travel speed and drawbar pull automatically – without shifting gears. The result is smooth and produc‐ tive operation. Liebherr, optional recirculating conveyor that al‐ lows the plant to be paired with a screening plant, such as the FT6230CC, GT205S or FT3620, making it a versa‐ tile open or closed‐circuit crushing sys‐ tem. The plant can also be equipped with an optional bogie system which allows the FT300DF to be hauled be‐ hind a tractor without requiring a transport trailer. KPI-JCI, Metso Metso's latest development in materi‐ als‐reduction equipment, the HRC, is a major step in the profitable application of high pressure grinding roll (HPGR) technology. Metso has made several key innovations in order to increase throughput and decrease total cost of operation. Metso's patented Arch‐frame creates an even gap setting across the width of the tires, limiting skewing that can re‐ sult in downtime for mining opera‐ tions. This anti‐skewing Arch‐frame also prevents damage to the roller bearings (caused by misalignment) that can occur with the traditional HPGR design. Used in place of spring‐loaded cheek plates, the flanges keep the bed of ma‐ terial within the crushing zone and prevent material from bypassing the tires. This enables greater circuit ca‐ pacity and increases the overall crush‐ ing efficiency. In addition, by preventing material from bypassing the tires, even pressure across the width of the tire is better maintained. By distributing the pres‐ sure more evenly, the tire life is maxi‐ mized by preventing a "bath tub effect," in which the center of the tire wears faster than the edges. Victoria Herman, Metso's product man‐ ager for the HRC, notes that this break‐ through design is a response to the growing needs in the mining industry. "Energy efficiency has been attracting our customers to HPGR technology for years," she says. "But (our design con‐ cept) increases capacity and crushing efficiency – and that's something min‐ ing companies are always looking to improve on." Other notable benefits of the HRC: ROCKproducts • NOVEMBER 2012 21

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