Coal Age

NOV 2012

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minexpo highlights continued plete in the seamless integration of the shearer, armored face conveyor, and roof supports; and it's specifically designed to meet the challenges of a tough low-seam mining environment. SMARTZONE proximity detection zone configuration. an innovative P&H; drill operator cab and new training simulators. The company also recently announced a new strategic busi- ness alliance with ESCO to develop new lip systems for shovel dippers. JoyGlobal's new hybrid shovel, the P&H; 2650CX, is a diesel-electric rope shovel with an articulating hydraulic clamshell attachment designed to deliver a 65-ton payload. The machine will four- pass load 240-ton trucks and be capable of loading ultra-class 400 ton trucks. Engineered to blend the high produc- tivity of electric mining shovels with the mobility and flexibility of hydraulic exca- vators, the P&H; 2650CX is designed to deliver a 15% total cost of ownership reduction when compared to large hydraulic excavators through a combina- tion of reduced fuel consumption, improved availability and decreased maintenance and repair costs. "Fuel consumption will be reduced by as much as 25% through using proven power regeneration from our electric motor and drive systems technology from our P&H; Letourneau-Series Wheel Loaders," said John Koetz, vice president, product marketing and engineering, JoyGlobal Surface Mining. "The drive sys- tem used will be approximately 50% more efficient than comparable diesel hydraulic systems." In addition to reduced fuel consump- tion, the P&H; 2650CX will decrease the hydraulic routings, on-board fluid and pumps. This substantially improves sys- tem level reliability, efficiency and main- tainability—which can result in increased machine availability over traditional diesel-hydraulic excavators. The first machine is slated to be placed in mine in the fourth quarter of 2013. 34 www.coalage.com JoyGlobal also introduced the P&H; 4800XPC, the company's largest electric mining shovel, with a 135-ton payload designed to three pass load 400-ton ultra- class haul trucks. Built upon the proven per- formance of the P&H; 4100XPC AC, its design leverages new, patent pending Adaptive Controls technology with ultra- class machine structures to enable the larg- er payload and increase efficiencies. "Our new Adaptive Controls are a series of seven advanced control functions that optimize shovel power usage in different phases of the dig cycle," said Josh Wagner, director of product development. "The goal of this system is to enable the most efficient and productive dig cycle possible, regard- less of the severity of the application." In addition to the Adaptive Controls, the P&H; 4800XPC features robust machine structures and systems such as a wider boom and handle, a new dipper with a high- er weight to payload ratio and a patent pending modular counterweight system. The company estimates a production increase of as much as 20% over the P&H; 4100 XPC AC with the potential to move more than 9,000 tph in production. The first machine is slated to be placed in a mine in the fourth quarter of 2013. JoyGlobal Underground Mining exhibited its new low-seam longwall system, while offering attendees an opportunity to actual- ly operate this highly-integrated system within a specially-designed simulator. Offering significantly greater productivity, safety, and cost-efficiency in the extraction of thin seam coal, the JoyGlobal Low-Seam Longwall System delivers capacities exceed- ing 300,000 tons per month. With compo- nents newly-engineered to achieve higher production at lower cutting heights, the Joy Global Low-Seam Longwall System is com- "Our customers want an alternative to old- er, conventional methods, which remain costly and inefficient due particularly to the amount of rock and dirt being extracted with the coal," said Ed Niederriter, JoyGlobal product director for shearers and haulage products. "Consider that when compared to the typical use of medium-seam longwall equipment, operations using the JoyGlobal Low-Seam Longwall System can reduce waste by up to 40%, while achieving signifi- cant operational cost savings." JoyGlobal Low-Seam Longwall Systems deliver a number of benefits such as greater operator safety via a Remote Operator Control Center (R.O.C.), which allows push- button control in full automation mode or manual override, all from a safer and clean- er environment away from the face. The new Low-Seam Joy Shearer reduces the risk associated with mining face geology vari- ants, and the synchronization of gate-end cut turnarounds. It will cut and load a full web up to ten times the width of that achieved by a plow. Operators also have the advantage of more easily varying the min- ing height across the face, cutting through tough mid-face coal and other unexpected geological challenges. Also important to added safety and pro- ductivity, the shearer can cut through rock in the seam without requiring readjust- ments, or the need to stop for drilling and blasting. Additionally, operators can easily increase mining height for improved main- tenance access, as well as for more rapid equipment disassembly in the face recovery stage. Lastly, the system positions the tail- end of the face equipment within the con- fines of the coal, which directly increases production by eliminating the need to keep the tail-gate entry free of debris. JoyGlobal's latest innovations in Advanced Shearer Automation (ASA) result in the optimization of longwall pro- duction cycles and mining safety, as reported by Joy Global customers in the U.S., Australia, and China. These opera- tional gains, which also contribute to lower operating costs per ton, stem from new shearer steering technologies which allow the programming of fully-automat- ed cutting sequences, including gate-end turnarounds. End user benefits include controlling the shearing machine with a single operator, November 2012

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