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Ursa Major (excavator)
The 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. The Ursa Major was one of five large walking draglines operated at Black Thunder, with the next two largest in the dragline fleet being Thor, a B-E 1570W - which has a boom and a bucket - and Walking Stick, a B-E 1300W with a boom and a bucket. Its bucket is , and it has a boom. It weighs .''Modern Marvels'': Earthmovers History Shortly before the scrapping of Big Muskie Big Muskie was a coal mining Bucyrus-Erie dragline excavator owned by the Central Ohio Coal Company (formerly a division of American Electric Power), weighing and standing nearly 22 stories tall. It operated in the U.S. state of Ohio from 1 ... in 1999, the largest dragline ever built, construction of another ultraheavy dragline excavator commenced. Although not as larg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Black Thunder Coal Mine
The Black Thunder Coal Mine is a surface coal mine in the U.S. state of Wyoming, located in the Powder River Basin which contains one of the largest deposits of coal in the world. Black Thunder is the second most productive mine in the United States, providing the US with 8% of its coal supply. In 2007, the mine produced 86,196,275 short tons (78.2 million metric tonnes) of coal, nearly 20% of Wyoming's total coal production, and higher than 23 other individual coal producing states. Black Thunder's dragline excavator Ursa Major (excavator), Ursa Major is the biggest working dragline in North America and the third largest ever made. It produces enough coal to load up to 20-25 trains per day. Draglines are not used to dig coal, but only strip overburden. Black Thunder operates six draglines. Coal is excavated by excavator, power shovels and loaded into haul trucks. In 1974, exploration geologist Lewis R. Ladwig drilled exploratory holes on the Jacob sheep ranch. He was work ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dragline Excavator
A dragline excavator is a piece of heavy equipment used in civil engineering and surface mining. Draglines fall into two broad categories: those that are based on standard, lifting cranes, and the heavy units which have to be built on-site. Most crawler cranes, with an added winch drum on the front, can act as a dragline. These units (like other cranes) are designed to be dismantled and transported over the road on flatbed trailers. Draglines used in civil engineering are almost always of this smaller, crane type. These are used for road construction, road, port construction, pond and canal dredging, and as Deep foundation, pile driving rigs. These types are built by crane manufacturers such as Link-Belt Construction Equipment, Link-Belt and Hyster Company, Hyster. The much larger type which is built on site is commonly used in Strip mining, strip-mining operations to remove overburden above coal and more recently for oil sands mining. The largest heavy draglines are among the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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. In 1927, Bucyrus merged with the Erie Steam Shovel Company to form Bucyrus-Erie. Renamed Bucyrus International, Inc., in 1997, it was purchased by Caterpillar in a US$7.6 billion ($8.6 billion including net debt) transaction that closed on July 8, 2011. At the time of its acquisition, the Bucyrus product line included a range of material removal and material handling products used in both surface and underground mining. History 1880-1927 Bucyrus was an early producer of steam shovels in its Bucyrus, Ohio headquarters and manufacturing facility. In 1893, Bucyrus moved its operations to South Milwaukee, Wisconsin. In 1904 Bucyrus supplied 77 of the 102 steam shovels used to dig the Panama Canal. These were 95 ton models with five-cubic-yard ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Modern Marvels
''Modern Marvels'' is an American worldwide television series that formerly aired on the History Channel and is currently shown on Story Television. The program focuses on how technologies affect and are used in modern society. It is History's first and longest-running program. It was first aired on A&E on December 10, 1992 under the banner "Time Machine." The series began airing on the History Channel in 1995 under its current title. Introduction Distinct from other History Channel series, the introduction of ''Modern Marvels'' features visuals and sounds of a bolt being turned by a ratchet wrench, followed by a partially computer-generated sequence involving construction workers building and hanging the title. Production Bruce Nash is credited with creating the series. Don Cambou acted as executive producer on more than 350 episodes for Actuality Productions, the production company behind the series. ''Modern Marvels'' has produced over 650 one-hour episodes topics that i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Big Muskie
Big Muskie was a coal mining Bucyrus-Erie dragline excavator owned by the Central Ohio Coal Company (formerly a division of American Electric Power), weighing and standing nearly 22 stories tall. It operated in the U.S. state of Ohio from 1969 to 1991. Design specifications and service The Big Muskie was a model 4250-W dragline and was the only one ever built by the Bucyrus-Erie. With a bucket, it was the largest single-bucket digging machine ever created and one of the world's largest mobile earth-moving machines alongside the Ohio-based Marion 6360 stripping shovel called The Captain and the German bucket wheel excavators of the Bagger 288 and Bagger 293 family.For details see the table on thGerman Wiki The bucket alone could hold two Greyhound buses side by side. It took over 200,000 man hours to construct over a period of about two years and cost $25 million in 1969, the equivalent of $ today adjusted for inflation. Big Muskie was powered by electricity supplie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Engineering Vehicles
Heavy equipment or heavy machinery refers to heavy-duty vehicles specially designed to execute construction tasks, most frequently involving earthwork operations or other large construction tasks. ''Heavy equipment'' usually comprises five equipment systems: the implement, traction, structure, power train, and control/information. Heavy equipment has been used since at least the 1st century BC when the ancient Roman engineer Vitruvius described a crane in '' De architectura'' when it was powered via human or animal labor. Heavy equipment functions through the mechanical advantage of a simple machine, the ratio between input force applied and force exerted is multiplied, making tasks which could take hundreds of people and weeks of labor without heavy equipment far less intensive in nature. Some equipment uses hydraulic drives as a primary source of motion. The term "plant" is used to refer to any mobile type of heavy machinery. History The use of heavy equipment ha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Excavators
Excavators are heavy construction equipment consisting of a boom, dipper (or stick), bucket and cab on a rotating platform known as the "house". The house sits atop an undercarriage with tracks or wheels. They are a natural progression from the steam shovels and often mistakenly called power shovels. All movement and functions of a hydraulic excavator are accomplished through the use of hydraulic fluid, with hydraulic cylinders and hydraulic motors. Due to the linear actuation of hydraulic cylinders, their mode of operation is fundamentally different from cable-operated excavators which use winches and steel ropes to accomplish the movements. Terminology Excavators are also called diggers, JCBs (a proprietary name, in an example of a generic trademark), mechanical shovels, or 360-degree excavators (sometimes abbreviated simply to "360"). Tracked excavators are sometimes called "trackhoes" by analogy to the backhoe. In the UK and Ireland, wheeled excavators are sometimes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Industrial Equipment
Industrial technology is the use of engineering and manufacturing technology to make production faster, simpler, and more efficient. The industrial technology field employs creative and technically proficient individuals who can help a company achieve efficient and profitable productivity. Industrial technology programs typically include instruction in optimization theory, human factors, organizational behavior, industrial processes, industrial planning procedures, computer applications, and report and presentation preparation. Planning and designing manufacturing processes and equipment is the main aspect of being an industrial technologist. An industrial technologist is often responsible for implementing certain designs and processes. Accreditation and certification The USA-based Association of Technology, Management, and Applied Engineering (ATMAE), accredits selected collegiate programs in Industrial Technology in the USA. An instructor or graduate of an Industrial Techn ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
