Engineering & Mining Journal

APR 2013

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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Paus has recently undertaken a complete redesign of its MinCa personnel carrier. company also reports that Latin America is now one of its strongest markets, along with Russia, and that it has established a sales and service subsidiary in Chile and an office in Moscow. According to Paus, it now offers a virtually unrivalled range of service and production vehicles for underground mining: utility vehicles, LHDs, dump trucks, scalers and the company's well-known MinCa, used mainly for personnel transport. For special applications, it has developed a rail-based ditch cleaner to help increase productivity and safety during the maintenance of drainage ditches alongside underground track systems. And its 853 S8 scaler is—unlike most of the other scalers on the market—a small, versatile machine that can be used for very sensitive checking of haulage roofs before scaling, replacing manual scaling. In production now for more than 20 years, Paus' MinCa is a frontsteered, all-wheel-drive transport vehicle that can handle payloads of up to 4 mt. It has a number of add-on cassettes, such as passenger cabs for up to 18 people, crane platforms and tank and service units, to meet specific customer requirements. Despite this capability, the MinCa is compact and can turn a 90° bend in a tunnel only 4.3 m wide—or narrower if equipped with four-wheel steering, Paus says. Powered by 90 kW Deutz emission-controlled engine with a hydrostatic drive system, the MinCa has a top speed of 33 km/h (20 mph) and can climb inclines of up to 60%. Paus has recently introduced a new chassis design for the vehicle, featuring a suspension system that ensures that all four wheels remain in contact with the ground as well as improving the ride quality for the operator and passengers. A hinged cab that gives improved maintenance access is also part of the new design. Shotcrete Spraying in Southern Spain Founded in 1958, Putzmeister produces a wide range of high-pressure concrete pumps, concrete-placing booms and solids pumps, as well as concrete spraying equipment for mines and tunnels. Putzmeister's underground division has been designing and building concrete-spraying equipment for more than 30 years, with its systems being used in mining and tunnelling projects all over the world. Its spraying systems apply shotcrete at output rates of up to 30 m3/h and spraying reaches of up to 17 m, the company says. To complement and improve the concrete-spraying process in mining, Putzmeister has designed a low-profile concrete mixer, the Mixkret 4. With a concrete capacity of 4 m3 and a tank for transporting and transferring liquid additives, it saves costs each time concrete is transported, the company claims. The machine is equipped with a 130 kW (174 hp) engine that provides it with good climbing and moving power, as well as the possibility of working at high altitudes, while the compact design gives a high level of mobility and 2013 • VDMA MINING SUPPLEMENT VDMA 11

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