The crane is mounted on the deck of the ship, the rail is laying on both sides of the ship deck for crane running & working on the entire deck of the ship. The crane designed for lifting the cover or hoisting other items. There are two sets of winch system installed at both ends of the main beam, which can operate four hooks up or down at the same time to lift or land hatch cover smoothly. There is an electric hoist installed below the main beam for lifting other items to meet different requirements.