stripping shovel การใช้

• In 1912 Bucyrus helped pioneer the use of electricity as a power source for large stripping shovels and draglines used in mining.
• Marion built its first walking dragline in 1939 and became a key player in providing giant stripping shovels to the coal industry, being the first to put a long-boom revolving stripping shovel to work in North America in 1911.
• Marion built its first walking dragline in 1939 and became a key player in providing giant stripping shovels to the coal industry, being the first to put a long-boom revolving stripping shovel to work in North America in 1911.
• In the 1950s and 1960s Marion Shovel built massive stripping shovels for coal operations in the Eastern US . Shovels of note were the Marion 360, the Marion 5900, and the largest shovel ever built, Marion 6360 " The Captain " & ndash; with a bucket & ndash; while Bucyrus constructed one of the most famous monsters : the Big Brutus, the largest still in existence.