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Open Pit Mining Costs Per Ton

open pit mining allows the use of very large machines which have a lower cost per tonne of rock than small machines Capital expenditure may be lower than UG. Shaft sinking is extremely expensive. In addition, in open pits, contractors may be hired who provide their own machinery drills, trucks, shovels, loaders etc. which reduces the mining ...

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    For 1999 and beyond, mining cost per ton is expected to be in the range of 0.85 to 0.90. The depth of the pit and the height of the heap leach pad impact the truck-haul cycle time and unit cost, which is the most significant component of mining costs. Processing - Rates The crushingprocessing rate is 21,500 tpd. It is expected to rise to ...

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    As a rule of thumb, open pit mining can process ore for 10 per tonne and, where the ore grade is more than double that at 20 per tonne, results would be economic. Consider that 1 of a metric tonne is 22 pounds. Then, for a commodity worth about 1 per pound such as zinc, 1 zinc worth 22 per tonne becomes interesting.

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    Dec 23, 2020 In 2019, the national average sales price of bituminous, subbituminous, and lignite coal at coal mines was 30.93 per short ton, and the average delivered coal price to the electric power sector was 38.53 per short ton.

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    May 21, 2013 Open-pit mining removes valuable ore that is relatively near the surface of the Earths crust using power trucks and shovels to move large volumes of rock. Typically, it is a lower cost mining method, meaning lower grades of ore are economic to mine. Underground mining occurs when the ore body is too deep to mine profitably by open-pit. In ...

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