Much like a crane, a Derrick Crane is used for moving materials vertically and horizontally in a stone quarry, consisting of a hoisting mechanism and pulleys or sheaves to create a mechanical advantage to lift large and heavy stone block loads. Unlike a usual crane, a Derrick Crane usually has a vertical stationary mast extending from a base and a moveable boom. At Stonemarket.online , you can find the most suitable cranes for the geological structure of your quarry, the type of material you will extract, and you can contact the manufacturers directly.