Hydraulic cylinders are widely used in the shipbuilding industry and are one of the indispensable core components in the construction, repair and operation of ships. Hydraulic cylinders can convert hydraulic energy into mechanical energy and drive various types of ship equipment and process flows through hydraulic systems. The main functions of hydraulic cylinders in shipbuilding include controlling heavy lifting equipment, driving various moving parts of ships, and providing power support during ship commissioning and maintenance.

1. Ship lifting equipment
During the shipbuilding process, the movement and installation of the hull and other heavy equipment require large cranes and lifting equipment. Hydraulic cylinders are often used in the lifting system of cranes, and the lifting, retraction and rotation of the crane arm are controlled by the hydraulic drive system. These operations require tremendous power and control, and hydraulic cylinders are ideal for driving lifting equipment due to their high power density and stability.

2. Ship steering gear and propulsion system
The steering gear and propulsion system of ships require power transmission and control. The application of hydraulic cylinders in these systems can realize the rotation of rudder blades, the lifting and lowering of thrusters, and other functions, ensuring that the ship can adjust its course smoothly. The hydraulically driven steering system can operate smoothly under high load conditions and is an indispensable power source for large ships, especially large ships such as cargo ships and tankers.

3. Ship hull assembly and commissioning
During the assembly and commissioning stage of the ship, hydraulic cylinders are used to adjust the relative position and angle of various hull components. The hydraulic system can adjust the lifting and lowering of the hull structure, assist in the docking and welding of hull components, and ensure the manufacture and assembly of the hull. In addition, hydraulic cylinders can also be used to adjust the position and angle of internal facilities of the ship, such as deck lifting equipment, cargo doors, fire-fighting facilities, etc., to enhance the flexibility of ship functions.

4. Ship maintenance and hatch operation
During the maintenance of the ship, hydraulic cylinders are widely used for the lifting and operation of ship hatches. The hydraulically driven hatch system can be opened or closed quickly when needed, effectively ensuring the safety of crew and cargo. Other moving parts of the ship, such as ship cranes, hydraulic jacks, etc., also require hydraulic cylinders to complete stable operations, especially during ship maintenance and equipment replacement.

5. Ship deck and accessories adjustment
Many facilities on the ship deck, such as elevators, cargo loading and unloading platforms, lifeboat systems, etc., rely on hydraulic cylinders for lifting and adjustment. The high-intensity driving force provided by the hydraulic system can easily cope with the large-scale lifting and lowering operations of these facilities, ensuring that the ship can flexibly cope with various tasks in different situations.