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A dragline excavator is a heavy-duty excavator used in civil engineering and surface mining. It was invented in 1904, and presented an immediate challenge to the steam shovel and its diesel and electric powered descendant, the power shovel .
Great Bear) at Black Thunder Coal Mine, Wyoming, is the largest dragline excavator currently in use in North America and the third largest ever built. [1] [2] It is a Bucyrus-Erie 2570WS model and cost US$50 million. The Ursa Major was one of five large walking draglines operated at Black Thunder, with the next two largest in the dragline fleet ...
Oddball (dragline excavator) S. Sundew (dragline) U. Ursa Major (excavator) This page was last edited on 5 October 2021, at 00:41 (UTC). Text is available under the ...
At the time of its construction Sundew was the largest walking dragline in the world, weighing 1,675 long tons (1,702 t). With a reach of 86 metres (282 ft) and a bucket capacity of 27 long tons (27 t) the machine was able to move a substantial amount of material in a relatively short period.
The Big Muskie was a model 4250-W dragline and was the only one ever built by the Bucyrus-Erie company. [1] With a 220-cubic-yard (170 m 3) bucket, it was the largest single-bucket digging machine ever created and one of the world's largest mobile earth-moving machines alongside the Illinois-based Marion 6360 stripping shovel called The Captain and the German bucket wheel excavators of the ...
In April 1946, the company changed its name to the Marion Power Shovel Company to more closely reflect its products. [6]Marion built its first walking dragline in 1939 and became a key player in providing giant stripping shovels to the coal industry, being the first to put a long-boom revolving stripping shovel to work in North America in 1911.
Bucyrus-Erie 1150RB walking dragline preserved at St Aidan's opencast coal mine, Yorkshire, England A 200-B power shovel, and a Class 24 on display at the Reynolds-Alberta Museum. 4250-W walking dragline, also known as Big Muskie, was built in 1969, with a 220-cubic-yard (170 m 3) bucket and weighed 13,000 metric
The company holds many patents for cable-operated digging equipment, such as Dragline excavators and power shovels, such as the Insley model k12. Insley lost its independence in 1975 when purchased by United Dominion Industries ; the name is currently held by Badger Equipment Co. [ citation needed ]