Roll-on/roll-off Vessel Hydraulic Cylinder
Summary: We could provide you:
- Main operating cylinder / Folding cylinder / Pinning cylinder / Thrust cylinder
- Controls the raising and lowering (luffing motion) of the vehicle ramp on roll-on/roll-off (Ro/Ro) ships, enabling smooth horizontal loading and unloading of vehicles and heavy equipment.
Ensures precise angle adjustment and stable load support during ramp deployment, even under dynamic marine conditions - Can be customized according to customer requirements.
Function: Ramp extension and retraction – Enables smooth deployment and stowage of boarding or loading ramps
Specifications:
- Bore diameter: 50 mm to 125 mm
- Rod diameter: 25 mm to 75 mm
- Stroke length: up to 1,000 mm
- Maximum thrust: 361 kN (achieved at 125 mm bore diameter under 29.4 MPa system pressure)
Function: After the ramp or gangway is fully retracted, the pin locks into place. (Hydraulic self-locking)
Specifications:
- Model sizes: 80/50*S, 63/40*S, 40/28*S, with front and rear locking configurations available.
- Certification: Complies with DNV-GL type approval standards.
- Standardized sizing: Part of a standardized series for easy selection and interchangeability.
- Operating pressure: Up to 25 MPa.
- Piston rod material: Stainless steel for enhanced corrosion resistance and durability.
Function: After the ramp or gangway is fully retracted, the pin locks into place. (Mechanical self-locking)
Specifications:
- Model sizes: 80/45*S, 60/32*S, with front and rear locking configurations available.
- Certification: Complies with DNV-GL type approval standards.
- Standardized sizing: Part of a standardized series for easy selection and interchangeability.
- Operating pressure: Up to 25 MPa.
- Piston rod material: Stainless steel for enhanced corrosion resistance and durability.
Function: Extend and retract ramp or gangway.
Specifications:
- Cylinder bore: 100 mm – 400 mm
- Piston rod diameter: 50 mm – 180 mm
- Stroke length: ≤ 7300 mm
- Thrust: Up to 3500 kN (at cylinder bore 125 mm / pressure 28 MPa)
Series Advantage:
- Compact design with materials meeting requirements of relevant third-party certification bodies, including low-temperature application options.
- Offers various surface anti-corrosion solutions: Ni/Cr plating, ceramic spraying, laser cladding, and surface hardening.
- Customizable integration of counterbalance valves and hydraulic line connections upon request.
- Optional displacement monitoring devices such as position sensors and proximity switches.
- Tailored end-of-stroke cushioning design for enhanced cylinder protection.
- Wide standard temperature range (-20℃ to +80℃), with customization available for higher or lower operating temperatures.
- Full support for third-party inspection and certification services (CCS, ABS, etc).
If you have any inquiry, please feel free to contact us and we are committed to provide best quotation and design for your kind perusal.