The Asia Miner

OCT-DEC 2016

The ASIA Miner - Reporting Important Issues to Mining Companies in the Asia Pacific Region

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REGULATIONS are having a significant impact on mining industry pro- ductivity at a time when it's already running on thin margins . There are options that can help a mine increase production while adhering to drill and blast regulations, addressing sound and vibration abatement, and reducing dust to minimise the effect on air quality . One solution is the Vermeer T1255III Terrain Leveler® surface exca- vation machine (SEM) . The Terrain Leveler SEM features an optional dust suppression system, GPS steering and grade control, as well as a cutting head attachment that can create an 80-degree high wall . This technology is ideal for use in surface mine applications - espe- cially those facing drill and blast restrictions or urban encroachment . The advantages of Vermeer technology are numerous: • Access areas of surface mines where drilling and blasting cannot be done because of physical or permit limitations . • See a reduction in noise, dust and vibration compared to drill and blast . • Produce a smaller, more consistent particle size, helping to elimi- nate the primary crusher step . • Use the Terrain Leveler SEM for haul road construction and main- tenance . "The surface excavation machine allows mines to excavate reserves they couldn't otherwise get to due to drill and blast restrictions or air quality regulations," says Vermeer's senior commercialisation manager for mining Patrick Robinson . "Mines have already spent considerable time and money on permitting . By integrating our surface excavation technology with their drill and blast program the mines have the ability to extract those reserves that otherwise may be left behind . " The Terrain Leveler SEM features a patented tilt-head milling at- tachment with top-down cutting action that can dig up to 21 inches (53 . 3cm) deep and 144 inches (365 . 8cm) wide in a single pass . As the unit travels forward and the drum rotates, the teeth on top of the drum advance over the top of the mineral surface . Operators can also control material sizing by increasing or decreasing the tooth penetration to produce an 8-inch (20 . 3cm) minus product . Uniform product size also allows more efficient settings on secondary and tertiary crushing systems . Enhanced efficiency & dust suppression The Vermeer T1255III direct drive Terrain Leveler SEM features a fully hydrostatic motor mounted to the side of the cutting head, providing direct drive power to the cutting drum . The direct drive drum design delivers more horsepower to the cutting drum, resulting in enhanced efficiency in hard rock conditions. In addition, the direct drive drum allows the quarry operator to cut an 80-degree high wall, providing slope stability that is desired in high- wall mining applications . Vermeer also offers a chain drive drum which allows the quarry operator to cut a 90-degree high wall, and is also designed to work in hard rock conditions . On many mine sites, dust is a challenge . An optional dust suppres- sion system on the Vermeer Terrain Leveler SEM features an enclosed cutting head with two large vacuums pulling dust from the enclosed cutting head into baghouses . The collected dust is dropped beneath the machine, helping to reduce the amount of dust entering the air . This also diminishes the need to source water to control dust during the mining process . GPS technology & autonomous control The T1255III Terrain Leveler SEM also features optional GPS technol- ogy that can also be used to create a mine-by-line plan . A mine plan can be uploaded to the GPS system and the machine will automatically cut to the plan . "Machine steering is controlled by the GPS technology, helping re- move human error for cutting head overlap and maximising efficiency of the machine," says Patrick Robinson . "The GPS system provides an overlap cutting of only 6 inches (15 . 2cm) . A patented tilt cutting head tied to GPS technology allows the opera- tor to control the cutting head depth and pitch . This feature allows the operator to cut to the mine plan - producing a flat, almost road-smooth surface; a grade for drainage; or a sloped haul road . The technology also eliminates rapid changes in cutting depth, which can impact pro- ductivity, and can provide more precision cutting than an operator-con- trolled system . The T1255III is equipped with Vermeer SmartTEC control software that assists operators with adjustments to machine operation to help maximise machine performance . "Our SmartTEC system displays the status of the many critical ele- ments of machine performance, with prompts providing visual cues to the operator for recommended control adjustment," says Patrick Robinson. "The s oftware also monitors and records various machine operation attri- butes for future analysis by the machine owner or fleet manager." Operator safety The cab features an operator presence system that disengages the ground drive and cutting attachment if the operator leaves the seat . The machines are available with a rollover protective module (ROPM) and a falling object protective structure (FOPS) for working near a high pit wall. The machine's low centre of gravity helps maintain machine stability . In addition, the Terrain Leveler SEM has a pressurised cab with filtered air system to provide increased operator comfort . The SEM can also be equipped with an optional full-function wireless remote, which al- lows the operator to run the machine from a safe distance if the project requires the machine to cut against a high wall . The Vermeer T1255III Terrain Leveler can help increase production while ad- hering to drill and blast regulations, addressing sound and vibration abate- ment, and reducing dust . Boost output while adhering to regulations COMPANY PROFILE - Vermeer

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