Engineering & Mining Journal

MAR 2019

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 • MARCH 2019 EQUIPMENT GALLERY Sandvik introduced the LH621i, its sec- ond i-series loader. The high-capacity loader is the optimal unit for rapid mine development and large-scale underground production, the company reported. Considering the loader's payload ca- pacity, it is ideally paired with the TH663i truck. The LH621i was built on proven technology inherited from its market-lead- ing predecessor, the LH621, and now it enters the market equipped with further improved features, Sandvik reported. Built with the hydraulic power needed for fast bucket fi lling, and the drivetrain power for high ramp speeds, the LH621i is designed to quickly clear tunnel headings for rapid advance rates. Engineered with personnel safety in mind, the loader offers long component lifetimes and low costs per metric ton (mt), the company reported. For product health monitoring and troubleshooting, the Sandvik LH621i features the latest Sandvik Intelligent Control System and My Sandvik Digital Services Knowledge Box onboard hard- ware as standard. The unit was designed automation ready, enabling Sandvik's Au- toMine installation, offered as a retrofi t. To improve comfort and productivi- ty in manual operation, signifi cant im- provements were made to the operator's compartment, the company reported. The loader features a new, more spacious and ergonomic cabin, with increased visibility and a 7-in. touch-screen color display. In the engine compartment, a fuel-effi - cient 352-kW, Stage II, Tier 2 engine deliv- ers the needed thrust for fast bucket fi lling and high-speed tramming for high produc- tivity, Sandvik reported. A new, more pow- erful, 375-kW, Tier 4f, Stage IV low-emis- sion engine option is available. The diesel engine brake in the Stage IV, Tier 4f engine provides better control of vehicle speed downhill, minimizing brake and transmis- sion overheating and brake wear, the com- pany reported. SHARK Ground Engaging Tools are available on a wide range of buck- et sizes, optimized for loader productivity and extended bucket service life. Sandvik's i series loader and truck family now spans two loaders and three trucks: Sandvik LH517i, Sand- vik LH621i, Sandvik TH545i, Sandvik TH551i and Sandvik TH663i. Separately, Sandvik Mining and Rock Technology introduced an operator train- ing simulator to provide a compact and fl exible solution to safely train operators and maintenance teams on the DD422i, DD422iE and DT922i drill rigs. It pro- vides a low-weight, safe training tool that is highly portable, enabling it to be used wherever it is most needed on-site, the company reported. The Operator Training Simulator weighs less than 50 kg. It delivers re- al-life training in a simulated working environment, with drill rig operators and maintenance teams learning about rig ca- pabilities before progressing to the actual equipment, Sandvik reported. The simulator acts like a real rig, operated with authentic controls and combined with the same control system software as that installed on the drills themselves. It comes with purpose-de- veloped software that includes a range of specifi c exercises for recording and measuring operator behavior. The train- er can initiate machine faults, incidents or hazards to train and assess operators, thereby ensuring they are able to respond correctly to any scenario with maximum effi ciency, the company reported. High-power Density Couplings Voith expanded its TurboBelt TPXL port- folio of fi ll-controlled couplings to include 500-kW, 800-kW and 1,250-kW versions, which combine hydrodynamics with intelli- gent control technology to optimize perfor- mance. The integrated controller matches the output torque exactly to the startup pa- rameters of the belt conveyor system, thus reducing wear and increasing service life. Due to its high-power density, the Tur- boBelt TPXL range requires only half the volume of conventional couplings and therefore can be easily integrated into drive trains, the company reported. The 800 and 1250 TPXL offers up to 1,600 and 7,960 newton meters of torque, re- spectively. The coupling concept consists of an integrated controller, an integrated oil pump and an oil supply unit. This lays the groundwork for accurate predictive maintenance to effectively keep the total cost of ownership low, the company re- ported. The line's hydrodynamic operating principle enables wear-free power trans- mission without the need for a mechanical Intelligent Loader for Large-scale Underground Production

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