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The superstructure of a bucket chain excavator is similar to that of a bucket wheel excavator. The primary component of bucket chain excavators is the bucket ladder and the bucket-chain. Unlike the buckets on a BWE, the buckets on the chain face downwards, allowing the machine to remove overburden or materials significantly below the bench or ...
The Type SRs 8000 or less commonly known as the SRs 8000-class, [6] is a family of bucket-wheel excavators known for being one of the largest terrestrial vehicles ever made by man, with Bagger 293 its - "lead vessel" - being the largest ground vehicle in history. [7]
Bucket-wheel excavators have been used in mining for the past century, with some of the first being manufactured in the 1920s. [1] They are used in conjunction with many other pieces of mining machinery ( conveyor belts , spreaders , crushing stations , heap-leach systems , etc.) to move and mine massive amounts of overburden (waste).
Excavators are heavy construction equipment primarily consisting of a boom, dipper (or stick), bucket, and cab on a rotating platform known as the "house". [ 1 ] The modern excavator's house sits atop an undercarriage with tracks or wheels , being an evolution of the steam shovel (which itself evolved into the power shovel when steam was ...
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.
Built by Bucyrus-Erie in 1969, it was 487 ft (148 m) in length, weighed some 13,500 short tons (12,247 t), and hoisted a 220 cu yd (168.2 m 3) bucket that could move 325 short tons (295 t) of material at a pass. A dragline excavator is a heavy-duty excavator used in civil engineering and surface mining.
The workgroup of a compact hydraulic excavator consists of the boom, dipper or arm, and attachment (e.g. auger, bucket or breaker). It is connected to the front of the excavator's house structure via a swing frame that allows the workgroup to be hydraulically pivoted left or right to achieve offset digging for trenching parallel with the tracks.
Some key size and configuration options for crawler excavators include: [9] Operating Weight: Ranging from approximately 1 to 800 tons; Engine Power: From less than 20 hp up to 4,500 hp for the largest models; Bucket Capacity: From less than 1 cubic yard to over 52 cubic yards; Boom Length: Typically 20 to 425 feet, depending on the excavator size
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