Ship Unloader is a kind of mechanical equipment specially used for unloading cargo of large ships. Its structure is similar to that of the tower crane, but the port ship unloader has a larger working range and lifting capacity, capable of unloading cargo of various shapes and weights, such as bulk cargo, liquid cargo, containers, etc.

Working principle of ship unloader in port wharf

The port terminal ship unloader lifts the cargo from the ship and transfers it to the delivery system on the dock by a large cantilever crane to complete the unloading of the cargo. Port ship unloader usually consists of the following parts:

Cantilever crane: Cantilever crane is the main part of the port unloader. It is capable of moving and carrying heavy loads over a large area and transferring goods to a delivery system.

Conveyor system: The conveyor system consists of conveyor belts, rails and other conveyor equipment capable of transferring cargo from the port unloader to the dock.

Driving and control system: The driving and control system includes motor, reducer, frequency converter, PLC controller, etc., which can ensure the safe and stable operation of the port unloader.

Application field of ship unloader in port wharf

Port ship unloader is usually used in large ports, docks, shipyards and other places, its unloading capacity is very large, can unload bulk cargo, liquid cargo and containers and other types of cargo. Port ship unloader plays an important role in port logistics system, which can improve the cargo throughput and efficiency of the port.

Classification of ship unloaders at port terminals

Dock unloaders can be divided into various types according to different classification standards. Here are some common categories:

Classification by unloading mode: fixed port ship unloader and mobile port ship unloader.

Classification by driving mode: electric port unloader and hydraulic port unloader.

Classification by unloading capacity: small port ship unloader, medium port ship unloader and large port ship unloader.




Advantages of ship unloader in port wharf

Port terminal unloader has efficient handling capacity, which can quickly unload cargo from the ship and transfer it to the terminal conveyor system.

The high degree of automation of ship unloader in port wharf reduces the error and risk of manual operation and improves the efficiency and safety of operation.

Port terminal ship unloader can adapt to various types of cargo, such as bulk cargo, container, liquid and so on, with high versatility and adaptability.

Wharf unloader can improve the efficiency of port logistics operation, shorten the turnaround time of cargo, and reduce the cost and labor risk of loading and unloading cargo.

Port terminal ship unloader can improve the competitiveness of the port, attract more cargo and ships into the port, and contribute to the development and prosperity of the port.

Maintenance and maintenance of ship unloader in port and wharf

Safety inspection should be carried out before use of ship unloader at port wharf to ensure that there are no faults and safety risks.

Port terminal ship unloader needs regular maintenance and maintenance, including cleaning, lubrication, fastening and other operations.

The drive and control system of port unloader should be inspected and maintained regularly to ensure the safe and stable operation of the equipment.

Port terminal ship unloader needs to undergo regular overhaul and maintenance, including the replacement of key components and overhaul of mechanical systems and other operations.


Wharf ship unloader is an indispensable equipment in the modern port logistics system, which can improve the cargo throughput and efficiency of the port, reduce the labor cost and work risk. Attention should be paid to safety and maintenance in the operation of ship unloader at port wharf. Only in this way can the stable and efficient operation of the equipment be guaranteed and better services for port logistics can be provided.