The Shipbuilding Gantry Crane is a specialized, heavy-duty lifting solution manufactured by Henan Mine, engineered for large-scale ship construction and repair operations in docks, slipways, and shipyards . This crane features a massive double-girner or truss-type main beam structure with rigid and flexible legs (typically A-type) designed with a fixed rigid leg on one side and a flexible leg connected via hinges on the other to accommodate thermal expansion and structural movement .

The crane is equipped with advanced dual-trolley configuration including an upper trolley mounted outside the main girder with double hooks and a lower trolley positioned at the center between the two girders, allowing both trolleys to cross each other for combined or independent operation . Typical specifications include lifting capacity from 100 to 2,500 tons (standard per GB/T 27997-2011, with special designs up to 2,000 tons) , spans from 40 to 180 meters , lifting heights from 25 to 80 meters , working duty class A3 to A5, and ambient temperature range from -20°C to +40°C . The crane features all motion variable frequency drive (VVFD) for smooth operation, anti-sway systems, and comprehensive safety devices including rail clamps, ground anchors for storm prevention, overload protection, wireless infra-detector for anti-collision, and flashing light warning indicators .

The Shipbuilding Gantry Crane is specifically designed for heavy-duty lifting in shipyards and dry docks. It is widely used for lifting ship hull sections, engines, propellers, rudders, steel plates, and other large ship components during the vessel construction, assembly, and repair process. With high lifting capacity, wide span, and precise positioning control, this crane enables efficient and safe handling of massive and complex loads. Its rugged gantry structure and advanced electric drive system ensure stable operation in harsh marine environments, significantly improving shipbuilding productivity and reducing assembly time.

Core Applications – Shipbuilding Gantry Crane
1.Hull Section Transport & Assembly – Transports large prefabricated hull blocks, bow and stern sections, and midship segments from fabrication workshops to the dry dock, with the double-trolley design allowing two trolleys to work together for balanced lifting .
2.Hull Overturning & Air Rotation – Performs in-air overturning of large hull sections (weighing up to 2,000 tons) during construction, with specialized upper and lower trolleys providing horizontal micro-rotation capability and coordinated flipping operations .
3.Ship Block Butt Jointing – Positions and aligns large hull blocks with millimeter precision during final assembly in the dry dock or slipway, using dual-trolley synchronized operation and variable frequency drive for precise placement .
4.Heavy Component Installation – Installs heavy equipment such as engines, propeller shafts, rudders, boilers, and deck machinery into the hull structure, utilizing the crane's massive lifting capacity (up to 2,500 tons) and precise control systems .
5.Ship Repair & Maintenance – Lifts and removes damaged hull sections, propellers, rudders, and other heavy components from vessels in repair docks at ship repair bases and dry dock facilities, with optional single and double hook lifting configurations for versatile operation .
6.Outfitting & Module Installation – Handles large pre-outfitted modules such as accommodation blocks, bridge sections, and engine room units during final assembly, supported by the crane's extremely long spans (up to 180m) and ability to cover entire construction area without repositioning .