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The chassis of the main section is 46 m (151 ft) wide and sits on three rows of four caterpillar track assemblies, each 3.8 m (12 ft) wide. The large surface area of the tracks means the ground pressure of the Bagger 288 is very small (1.71 bar or 24.8 psi); this allows the excavator to travel over gravel, earth and even grass without leaving a ...
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.
When the bucket is full, the shovel is rotated to load a railway car or motor truck. The locking pin on the bucket flap is released and the load drops away. The operator lowers the dipper stick, the bucket mouth self-closes, the pin relocks automatically and the process repeats.
Backhoe Loader Cat 420E A JCB 3CX backhoe loader A JCB backhoe loader performing work in India. A backhoe loader, also called a loader backhoe, loader excavator, tractor excavator, [1] digger or colloquially shortened to backhoe within the industry, is a heavy equipment vehicle that consists of a tractor-like unit fitted with a loader-style shovel/bucket on the front and a backhoe on the back.
Buckets have numerous shapes and sizes for various applications. There are also many other attachments that are available to be attached to the excavator for boring, ripping, crushing, cutting, lifting, etc. Attachments can be attached with pins similar to other parts of the arm or with some variety of quick coupler .
3850-B power shovels for stripping, one built each in 1962 and 1964, with bucket capacities of 115 and 145 cu yd (88 and 111 m 3). 2570-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.
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