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
Issue link: https://emj.epubxp.com/i/131325
E Q U I P M E N T G A L L E RY preprogrammed in Cat excavator tool control systems for easy set up. Oil flow and pressure are fully adjustable in the tool control program, and actual hammer working hours can be recorded for routine maintenance purposes. www.cat.com Deep-mining Dredges Offer Performance Options DSC Dredge's Marlin class dredges are designed for deep-deposit mining, made possible by the use of an underwater pump system with a high-torque cutter drive assembly. Digging depths range from 35 ft (10 m) to more than 200 ft (61 m). Discharge sizes range from 8 in. (203 mm) to more than 24 in. (610 mm). Marlin Class dredges are available in either a diesel- or electric-powered model to meet the customer's specific needs. Drive systems include a Cat ACERT diesel engine with inline direct marine-style transmission for dredge pump reduction; or TEFC electric motor, variable-frequency AC dredge pump motor drive and double helical gear reducer for dredge pump reduction. All models feature a PLC operating system, magnetic flow meter, electro-proportional hydraulic circuits, high-capacity service water system, maximizer suction dilution valves and a three-wire mooring system. These performance features offer deep water dredging capabilities combined with a wide array of suction and discharge sizes to maximize operating efficiencies for any application. www.dscdredge.com Rugged Routers for Industrial Installations B&B; Electronics' new SPECTRE RT 300 series industrial wired Ethernet routers are designed to securely connect Ethernet and serial equipment in tough environments where office-grade routers can't handle the job; unlike those routers, the compact (1.7 x 3.1 x 4.5 in.) SPECTRE RT is designed for environments such as cramped cabinet spaces or exposed locations and features a wide (-40 to 75°C) operating temperature, a compact DIN-rail mount, a rugged metal case and the ability to use 10 to 30VDC www.e-mj.com APRIL 2013 • E&MJ; 153