A dragline usually refers to a large bucket excavator that is controlled by a system of pulleys, chains, and ropes that hoist the bucket. ... The drag cable then draws the bucket system horizontally. Using these two main cables, operators can control the bucket and move it around.

What is the purpose of dragline excavator?

A dragline excavator is a piece of heavy equipment used in civil engineering, surface mining and excavating. A large excavator uses a dragline to pull a bucket by a wire cable. The operator lowers the bucket down to material that is supposed to be excavated.

How much does a dragline excavator cost?

A large dragline system used in the open pit mining industry costs approximately US$50–100 million.