Ship loaders and ship unloaders
Combined ship loaders and unloader is commonly used in port or jetties to facilitate the import and export activities by loading bulk materials into or from the ships. It mainly consist of an extendable boom, a belt conveyor, a tripper to elevate and transfer product from a source conveyor or feeder, and a mobile structure to support the boom. It is usually mounted on rails and sometimes on tires and movable to reach the whole length of the ship. The boom also can move front and back, up and down by separate drives so that it can fill the whole breadth of the hold and adapt to the ships increasing draught while it is loaded. At the discharge, a special telescoping chute, with rotating, pivoting spoon, facilitates even and complete filling of the holds.