Ursa Major (excavator) - Wikipedia
WEBThe Ursa Major (lit. 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.
Black Thunder to operate world's largest dragline bucket
WEBJan 28, 2001 · Ursa Major is one of four draglines used at Black Thunder that removes overburden, the dirt that covers the coal. The others are: Walking Stick, a 45-cubic-yard bucket; Thor, a 85-cubic-yard...
Black Thunder Coal Mine - Wikipedia
WEBBlack Thunder's dragline excavator Ursa Major is the biggest working dragline in North America and the third largest ever made. [3] [4] It produces enough coal to load up to 20-25 trains per day. [5] Draglines are not used to dig coal, but only strip overburden. Black Thunder operates six draglines.
Black Thunder Thermal Coal Mine, Wyoming - Mining …
WEBNov 27, 2020 · The dragline fleet includes Ursa Major, the largest of the three, a Bucyrus-Erie (B-E) 2570WS model weighing some 6,700t. The third-largest dragline ever built; it was assembled on-site over a three-year period at a cost of $50m. Its 110m-long boom carries a …
Ursa Major (excavator) - Wikiwand
WEBThe Ursa Major 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.
Bucyrus-Erie - Wikipedia
WEB2570-W or WS, one of B-E's most popular dragline models with bucket capacities between 120 and 160 cu yd (92 and 122 m 3). Ursa Major at Black Thunder Coal Mine was reported to be the third largest dragline ever built.
Ursa Major (excavator) - WikiMili, The Best Wikipedia Reader
WEBThe Ursa Major (lit. 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. It is a Bucyrus-Erie 2570WS model and cost US$50 million.
OSC funding $25M joint Navy, Ursa Major investment to mature …
WEB2 days ago · The Pentagon's Office of Strategic Capital will provide funding support to the Navy for a $25 million joint investment with Ursa Major to mature the company's Lynx manufacturing process to design, produce and test solid-rocket motor prototypes, the company announced today .
Ursa Major and U.S. Navy Make $25 Million Joint Investment in …
WEB2 days ago · The $12.5 million investment represents a partnership between OSC and the U.S. Navy to mature Ursa Major's Lynx solid rocket motor (SRM) manufacturing process under OSC's Transition Acceleration ...
Weir ESCO delivers 'largest operating' dragline bucket to North …
WEBJun 7, 2023 · Weir ESCO has completed another major milestone in its bucket-producing legacy, delivering a brand new, customised 164 yd (150 m) ESCO® ProFill® bucket to a customer in North America – a unit that, it claims, is now the largest dragline bucket currently operating anywhere in the world.
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