Port Crane

Four link gantry crane, also known as four-bar gantry crane, is a special type of gantry crane with multiple uses and significant features:

Purpose:

• Loading and unloading operations: mainly used in ports and open-air stockyards, using grab buckets or hooks to load goods.
• Shipbuilding operations: used for ship platforms, floating docks, and loading sites to carry out ship body splicing, equipment loading, and other lifting work, with hooks used as lifting devices.
• Construction and installation work: used for dam irrigation, equipment and prefabricated component lifting in hydropower stations, generally using hooks.

Features:

• Simple structure, safe and reliable: The four-bar linkage gantry crane has the advantages of simple structure, safe and reliable, low equipment investment cost, low energy consumption, and high work efficiency.
• The lifting node maintains a constant horizontal height: controlled by a four-bar linkage, the lifting node maintains a constant horizontal height when the boom moves forward and backward, ensuring smooth movement of the goods.
• Multiple classifications: According to different standards such as gantry structure, boom construction type, support device construction, and purpose, four-bar linkage gantry cranes have multiple classifications, such as full gantry cranes, half gantry cranes, four-bar combination boom gantry cranes, single arm beam gantry cranes, etc.

In summary, four link gantry cranes are widely used in ports, shipyards, and construction sites due to their versatility and reliability.

Four link gantry crane, also known as four-bar gantry crane or gantry crane, has the following advantages:

• Horizontal slewing system: The four-bar linkage crane adopts a horizontal slewing system, which ensures that the center of gravity of the heavy object and the boom system have almost no vertical displacement during the slewing process, improving the stability and safety of the operation.
• Balance weight design: By adding a movable balance weight to balance the rise and fall of the composite center of gravity of the boom system during pitch, this method is more convenient to arrange, reliable in operation, and widely used.
• Wide application areas: Four link cranes are widely used in ports, fixed cranes, floating cranes, tire cranes, gantry cranes, bridge cranes, gantry cranes, stacker reclaimers, ship loaders, unloaders, large steel structures and other fields.
• R&D and Manufacturing Strength: In the field of research and development and manufacturing of lifting and transportation machinery, it is necessary to have strong technological R&D and product manufacturing capabilities.

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