China ManufacturerTelescopic Long Stroke Piston Offshore and Marine Deck/Boat Crane Hydraulic Cylinder

Product introduction:

Basic Construction

The hydraulic cylinder of a marine crane primarily comprises components such as the cylinder barrel, piston, piston rod, seals, and cylinder head. Among these, the cylinder barrel, cylinder head, and piston collectively form a sealed chamber that facilitates the movement of the piston. The piston rod, attached to the piston, converts the piston's motion into mechanical energy output. The seals ensure tightness between the cylinder barrel and piston rod, preventing hydraulic oil leakage.

Operating Principle

The operating principle of the crane's hydraulic cylinder hinges on the transmission and amplification of liquid pressure. When the pump forces hydraulic oil into the cylinder, pressure builds up inside the cylinder barrel, propelling the piston. The direction of the piston's movement is controlled by the control valve, enabling it to advance, retract, or stop. This piston movement further transfers hydraulic pressure to connecting rods and other components, thereby executing various crane movements.

 Performance Characteristics:

• Strong Carrying Capacity: The crane's hydraulic cylinder can endure substantial pressure and tension, catering to the heavy-duty demands of crane operations.

• Smooth Motion: By transmitting and amplifying hydraulic pressure, the cylinder achieves mechanical motion with a smooth, impact-free characteristic.

• Rapid Response: The cylinder's swift responsiveness meets the rapid motion requirements of crane operations.

• High Reliability: With a straightforward design and reliable operation, the cylinder is resistant to malfunctions, reducing crane maintenance costs.

Application Fields

Hydraulic cylinders for cranes are extensively utilized in various crane and lifting equipment, including tower cranes, mobile cranes, crawler cranes, etc. They control the movements of components like crane jibs and hooks, enabling operations such as lifting, transporting, and unloading cargo.

 Maintenance and Servicing

To ensure the proper functioning of the crane's hydraulic cylinder, regular maintenance and servicing are necessary. This primarily includes the following aspects:

• Inspecting Hydraulic Oil: Regularly check the quality and quantity of hydraulic oil, ensuring it is clean and free of impurities, and replenish it promptly.

• Cleaning the Cylinder: Routinely clean both the interior and exterior of the cylinder to remove contaminants like oil and dust.

• Replacing Seals: Promptly replace damaged or aged seals to maintain the cylinder's tightness.

• Inspecting the Piston Rod: Regularly inspect the piston rod's straightness and roundness, ensuring they meet specifications to prevent excessive friction and wear during motion.

Product parameters

Our Services:
Act as a good adviser and assistant of client, we can help them to get rich and generous returns on their investment.
1. Pre-sale services:  
      a: Design customised project for clients.
      b: Design and manufcture products according to clients special requirement.
      c: Train technical personnel for clients.

2. Services during the sale:
      a: Help clients to find reasonable freight forwarders ahead of delivery.
      b: Help clients to draw solving plans.

3. After-sale services:
       a: Assist clients to prepare for the construction scheme.
       b: Install and debug equipment.
       c: Train the first-lin operators.
       d: Examine equipment.
       e: Take initiative to eliminate the troubles immediately.

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