Shipbuilding gantry crane, which is essential for shipbuilding operations in shipyard production sites (dock, berth), and has single, double or three hanging points, the device has a plurality of functions, such as air turning pieces positions, quick elevating at light load conditions(less than or equal to 50% full load), fast running at low wind speed (less than or equal to 8m /s).

The structure of ship building gantry crane has single girder type and double girder type. Ship building gantry crane steel structure is composed of gantry frame, up trolley, lower trolley, gantry travel mechanism, maintenance crane, elevator and electrical devices. Accessory safety related devices such as rail clamp, anchor, wind proof and lighting proof are provided, And traveling deviation correcting system is provided for longer span crane.