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bucket-wheel excavator

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  • Bucket-wheel excavator — Bucket wheel excavators are heavy equipment used in surface mining and civil engineering. They are among the largest vehicles ever constructed, and the biggest bucket wheel excavator ever built, the MAN Takraf RB293, is the largest terrestrial… …   Wikipedia

  • Bucket (machine part) — For other uses, see Bucket (disambiguation) and Scoop. A bucket (also called a scoop to qualify shallower designs of tools) is a specialized container attached to a machine, as compared to a bucket adapted to the form of a human being. It is a… …   Wikipedia

  • Excavator — CAT 325C, fitted with quick coupler and tilting bucketAn excavator is an engineering vehicle consisting of an articulated arm (boom, stick), bucket and cab mounted on a pivot (a rotating platform, like a Lazy Susan) atop an undercarriage with… …   Wikipedia

  • Dragline excavator — Page 725 dragline at Turkish Coal Association Yenikoy Open Pit Coal Mine, Milas …   Wikipedia

  • coal mining — Coal was very important in the economic development of Britain. It was used as fuel in the factories built during the Industrial Revolution and continued to be important until the 1980s. The main coalfields are in north east England, the north… …   Universalium

  • Trencher (machine) — A wheel trencher in South Africa A trencher is a piece of construction equipment used to dig trenches, typically for laying pipes or cables, or for drainage. Trenchers may range in size from walk behind models, to attachments for a skid loader or …   Wikipedia

  • Surface mining equipment —   An Auger machine is a large, horizontal drill, generally 3 feet or more in diameter and up to about 100 feet long. It can remove coal at a rate of more than 25 tons per minute.   A bucket wheel excavator is a continuous digging machine equipped …   Energy terms

  • Steam shovel — A steam shovel is a large steam powered excavating machine designed for lifting and moving material such as rock and soil. It is the earliest type of power shovel.Origins and development The steam shovel was invented by William Otis, who received …   Wikipedia

  • Bagger 293 — in the Hambach brown coal mine, 2008 Bagger 293, previously known as the MAN TAKRAF RB293, is a giant bucket wheel excavator made by the German industrial company TAKRAF, formerly an East German Kombinat. It owns or shares some records for… …   Wikipedia

  • Excavatrice à godets — à Ferropolis, en Allemagne. Une excavatrice à godets (Bucket wheel excavators (BWEs) en anglais) est un engin de génie civil utilisé notamment dans l exploitation de gisements de surface. La fonction principale des BWEs est d agir comme une …   Wikipédia en Français

  • Surface mining — is a type of mining in which soil and rock overlying the mineral deposit are removed. It is the opposite of underground mining, in which the overlying rock is left in place, and the mineral removed through shafts or tunnels. Surface mining is… …   Wikipedia

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