What is a Dragline Used For in Mining?
A dragline excavator is a piece of unusually large, heavy equipment used for surface mining and excavating. Draglines sit atop large roller ring structures that allow the top part of the excavator to turn. As you can imagine, such heavy machines place a great deal of weight and pressure on the roller ring. Over time and with use, the weight, vibration and motion of the excavator causes cracking and chipping along the rail's surface.
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