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  2. Rocker Shovel Loader - Wikipedia

    en.wikipedia.org/wiki/Rocker_Shovel_Loader

    An engraved copper plaque next to the Rocker Shovel at Bingham Canyon Mine. EIMCO 12B in the passing loop at Lea Bailey Light Railway.. A Rocker Shovel Loader, sometimes simply referred to as a Rocker Shovel or Mucker is a type of mechanical loader used in underground mining.

  3. Bucyrus-Erie - Wikipedia

    en.wikipedia.org/wiki/Bucyrus-Erie

    Bucyrus-Erie was an American surface and underground mining equipment company. It was founded as Bucyrus Foundry and Manufacturing Company in Bucyrus, Ohio, in 1880.Bucyrus moved its headquarters to South Milwaukee, Wisconsin, in 1893.

  4. Kennecott Utah Copper - Wikipedia

    en.wikipedia.org/wiki/Kennecott_Utah_Copper

    The company was first formed in 1898 as the Boston Consolidated Mining Company. The current corporation was formed in 1989. The current corporation was formed in 1989. The mine and associated smelter produce 1% of the world's copper.

  5. Joy Global - Wikipedia

    en.wikipedia.org/wiki/Joy_Global

    Joy Global's underground business received 90% of its revenue from coal projects, [2] and from the manufacture of underground mining equipment. [ 26 ] In 2011 underground mining machinery accounted for 60.5% of Joy Global's revenue (excluding LeTourneau) up from 60.3% in 2010.

  6. Underground hard-rock mining - Wikipedia

    en.wikipedia.org/wiki/Underground_hard-rock_mining

    There are two principal phases of underground mining: development mining and production mining. Development mining is composed of excavation almost entirely in (non-valuable) waste rock in order to gain access to the orebody. There are six steps in development mining: remove previously blasted material (muck out round), scaling (removing any unstable slabs of rock hanging from the roof and ...

  7. Category:Underground mines in the United States - Wikipedia

    en.wikipedia.org/wiki/Category:Underground_mines...

    This page was last edited on 31 January 2019, at 11:03 (UTC).; Text is available under the Creative Commons Attribution-ShareAlike 4.0 License; additional terms may apply.