Engineering & Mining Journal

AUG 2017

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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AUGUST 2017 • E&MJ 91 EQUIPMENT GALLERY Sandvik unveiled the TH551i and TH6631i autonomous hauling trucks. When paired with the company's Auto- Mine Trucking software package, the trucks can increase haulage production at a mine by as much as 30%, the com- pany reported. Multi-machine control and improved operating discipline can reduce operating costs by as much as 50%. The new trucks have built-in data col- lection capabilities, ensuring all informa- tion can be visualized at any time. Every load is analyzed and high-speed contin- uous production in autonomous mode enables higher utilization and extended equipment lifetime, Sandvik reported. The new evolution in AutoMine Trucking is decline haulage, which enables high-lev- el utilization and improved productivity in declines for underground hard rock miners who use ramp haulage. This helps enable several additional daily hours of haulage. Programs Digest Drillhole Data Hexagon Mining unveiled Sigma, a com- prehensive package of statistical and geostatistical programs to analyze and evaluate drillhole, blasthole, and model data. The package is fully integrated with MineSight Torque and MineSight 3D to produce sophisticated and customizable reports, charts and graphs. Features include a statistical applica- tion for univariate, bivariate and spatial analysis of geological data; a modern and intuitive user interface for batch creation, viewing and editing of graphs; and global refresh options for quick updates. Geosta- tistical graphs feature advanced data anal- ysis algorithms for streamlined variograph- ical analysis. Intelligent defaults-based analysis of the input data speeds initial graph creation, the company reported. Cone Crushers Get Adjustable Stroke All thyssenkrupp Kubria cone crushers now come standard with an adjustable stroke. Previously, the adjustable stroke feature was offered on only the Kubria 150 and 210 models. This will allow op- erators to change the stroke of the crush- er shaft without needing to replace parts of the eccentric drive unit. An adjustment can be executed concurrently while re- placing the crushing tools. The stroke can be adjusted to change the throughput rate and product quality, and in response to the hardness of feed material or power consumption require- ments. The correct stroke setting ensures Kubria cone crushers fi t perfectly into the overall system, allowing for uniform mate- rial fl ow while maintaining high through- put and excellent product quality, the company reported. Hydraulic Rippers are Low Maintenance Xcentric Ripper International (XRI) of- fers XR82, XR52 and XR42 hydraulic rippers. These models are part of the company's mining series, featuring a pat- ented system that increases production by 80% over the competition, the com- pany reported. Machines in the series are claimed to be virtually maintenance free, water resistant and less noisy than other digging tools. Although the mining series uses the same basic technology as the standard series, the mining models have been designed to provide greater impact force at lower frequency. The XR42 fea- tures a hydraulic working pressure of 24 megapascals (MPa); the XR52 is rated at 28 MPa; the XR82 is rated at 30 MPa. Autonomous Trucks Up Production 30%

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