Dragline excavators, known simply as draglines, are large excavating machines used for surface mining and terrain development. Draglines operate by lowering a bucket onto the terrain from a boom and ...

In the United States, coal mines must be roof-bolted. Dragline excavators are mining machines that consist of a large bucket suspended from a boom with wire ropes. They are used mainly in open pit ...

Hanson reinforced the culvert sections to support a 1,470-ton dragline excavator. Concrete with compressive strengths up to 6,750 psi was used, reducing the amount of concrete used on the project ...

FILE - A phosphate mining dragline excavator in Florida’s central region, operated by The Mosaic Company. ( Photographer: Jim Stem/Bloomberg via Getty Images) Florida and North Carolina are ...

The W1400 & 1800 coding denotes the rough weight of each dragline i.e. W1400 = 1,400 tons, W1800 = 1,800 tons. One Drag Line excavator named Sundew is very much part of local folklore having made ...