Engineering and Mining Journal - Whether the market is copper, gold, nickel, iron ore, lead/zinc, PGM, diamonds or other commodities, E&MJ takes the lead in projecting trends, following development and reporting on the most efficient operating pr
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60 E&MJ; • DECEMBER 2015 www.e-mj.com C R A N E S & R I G G I N G Meanwhile, the company reported that its distributor in Chile, Pesco, has designed a series of modifications for its National Crane boom trucks to ensure they meet the strict safety regulations for all vehicles working in the country's mines. The updates include applying high-visibility yellow paint to the truck's exterior, building a reinforced flatbed with side gates and a tailgate, and adding clear markings of the crane's load capacities throughout the unit. Pesco also installs access handrails, additional lighting, safety signs and decals around the truck's body, Manitowoc said. Maximum capacities are clearly displayed, along with safety color markings that cover the hook block and the boom truck's outrigger jacks. Advantages of using boom trucks include their quick setup and teardown times, which allows workers to move quickly from site to site, while additional permitting is not usually required for highway travel, saving time and money, the company added. IMT's Truck-mounted Cranes According to the product manager of material handling at Iowa Mold Tooling Co. (IMT), John Field, the company has developed all of its truck-mounted cranes, which include tel- escopic and articulating models, for use in rugged terrain. "We've recently seen significant growth in articulating crane sales in the mining market," he told E&MJ; . "A few years ago, we saw more telescopic cranes in the mines, but now articu- lating cranes are better meeting the lifting needs of these customers, and are therefore becoming more common. "Mining equipment is so large that customers are finding they need articulating cranes to better handle the weight of these components without overhead obstructions, as is the case with typical center-mount telescopic cranes," Field added. "IMT has a wide variety of articulating material- handling cranes that have farther reach and greater lifting capacities required to handle large components. We have about 30 crane models with maximum horizontal reaches of up to 33.6 m and crane ratings of up to 72-ton-m. As far as industry applications go, Field noted that IMT has sold several cranes to the Escondida mine in Chile, COMPANY PROFILE-PAID ADVERTISEMENT Since 1978, Polydeck has been the leading provider of modular polyurethane, rubber, and specialty screening solutions for the aggre- gate, coal, and mining industries. Their extensive selection of screen panels, frame systems, and accessories has helped companies save time, increase production output, extend screen service life, and improve worker safety. Their screen media product lines include: Polydex ® – Modular polyurethane screen media in 1' x 1' and 1' x 2' sizes that feature the most extensive range of opening sizes, shapes and configurations available today. Since all polyurethane screen panels are made with a high quality injection molding process, surface features like dams and restricted flow bars are an integral part of the panel, not a glued or bolted on option. Rubberdex ® – Modular rubber screen media in 1' x 2' sizes that are available in several material compounds for flexibility or stiffness or microbial resistance or high temperature applications. Rubberdex ® panels are also injection molded under extreme high pressure to ensure homogeneous construction for optimum performance. Armadex™ – Bolt-down rubber screen sections for the most abra sive, abusive scalping applications. These heavy-duty panels are made with a proprietary molding method that places premium gum rubber under extreme pressure in a staged sequence to produce rubber media of unprecedented strength, structural uniformity, and wear life. Available in screen section sizes up to 48" x 96" and 52" x 60" and up to 4" thick. And all Polydeck screening solutions are backed by the most compre- hensive Performance Guarantee in the industry. Polydeck Screen Corporation Terex claims that its AT-15 pick-and-carry crane offers a new level of versatility.