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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 ...
From 1985 onwards, all new machines carried the 'RB' name instead of 'Ruston-Bucyrus', and in 1987, a new mechanical/hydraulic powered 51–60 model developed from the 38-RB was offered for use as a crane or dragline excavator [1] In 1990, RB bought from its rival Priestman, the design and manufacturing rights to Priestman's Variable ...
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 .
The car is powered by two modified JCB 444 diesel power plants using a two-stage turbocharger to generate 750 bhp (560 kW), one engine driving the front wheels and the other the rear wheels. On 22 August 2006 the Dieselmax, driven by Andy Green , broke the diesel engine land speed record, attaining a speed of 328.767 mph (529.099 km/h).
The suction excavator uses suction fans for the airflow to suck up the material that is then transported into the holding tank. Hydro excavation , a type of suction excavator using high-pressure water jets , is sometimes referred to as daylighting , as the underground utilities are exposed to daylight during the process. [ 2 ]
Power shovels normally consist of a revolving deck with a power plant, drive and control mechanisms, usually a counterweight, and a front attachment, such as a crane ("boom") which supports a handle ("dipper" or "dipper stick") with a digger ("bucket") at the end. The term "dipper" is also sometimes used to refer to the handle and digger combined.
Bagger 288 (Excavator 288), previously known as the MAN TAKRAF RB288 [2] built by the German company Krupp for the energy and mining firm Rheinbraun, is a bucket-wheel excavator or mobile strip mining machine. When its construction was completed in 1978, Bagger 288 superseded Big Muskie as the heaviest land vehicle in the world, at 13,500 tons. [3]
Although not as large as the Big Muskie, the Ursa Major was still a large and substantial excavator. It first began operation around early 2001, the 160-cubic-yard (120 m 3) bucket which was newly cast at the time, was delivered at Black Thunder Mine. Operation to deliver the 165,000 pound bucket (82.5 tons) Bucyrus had to obtain special ...