A hydraulic marine crane refers to a hoisting device installed on carriers such as ships and offshore platforms, which takes a hydraulic system as its power source to drive executive components and complete lifting, luffing, slewing, and other operations for the hoisting and transfer of goods.
Exclusively designed for offshore operating scenarios with high salinity and high humidity, it serves as a core loading, unloading, and hoisting equipment for maritime installations, including ships and offshore platforms.
Composition
A hydraulic marine crane mainly consists of a base, a slewing mechanism, 
a jib system, a hydraulic system, a control system and safety devices.
Base: Fixed on the deck to bear the overall load.
Slewing mechanism: Driven by a hydraulic motor to achieve 360° full slewing.
Jib system: Telescoping and luffing controlled by telescopic hydraulic cylinders.
Hydraulic system: Comprising hydraulic pumps, various control valves, hydraulic cylinders/motors, hydraulic pipelines, and an oil tank.
Control system: Precision regulation achieved by electro-hydraulic proportional valves.
Safety devices: Equipped with core components such as a load moment limiter, overload protection device, and emergency manual operation device.
Design
Data
| Working Load | 5T@10m,3.2T@15m | Motor with heater | Power | 33kW |
| Working Radius | 2.5-15m | Power Source | AC380V/50Hz | |
| Hoisting Height | 20m | Protection type | IP56 | |
| Hoisting Speed | 10m/min | Insulation type | F | |
| Slewing Speed | 0.6r/min | Dsign Condtion | Heel/Trim | <5°/<2° |
| Slewing Angle | 360°(No limit) | Operating Temperature | ~35℃~+40℃ | |
| Luffing Time | 110s | Load on deck | Overturn moment | 1350kNm |
| Weight | 8.3t | Torque | 160kNm | |
| Class | RMRS | Overtical force | 125kNm |
Working Principle
The hydraulic pump converts mechanical energy into hydraulic energy. Flow rate, pressure, and direction of the hydraulic fluid are regulated by control valves to drive executive components such as hydraulic motors and hydraulic cylinders, which perform the core operations of the crane, including hoisting, luffing, and slewing.
Features and Advantages
The YFM hydraulic marine crane ensures stable operation even when the ship rolls ±5°. The precision control valve group guarantees the accuracy of inching operation, meeting the requirements of delicate operations such as maritime supply and equipment hoisting.
- Adopting marine-grade steel
- Multi-layer anti-corrosion coating system
- Hydraulic system with high output torque and strong load-bearing capacity
- Electro-hydraulic coordinated control enabling inching operation
- Hydraulic pipelines and electrical interfaces with protection class IP56 or above
- Integrated hydraulic power unit
- Accessible maintenance points
- Configurable with multiple safety devices, such as wind speed monitoring and automatic locking
- Capable of being equipped with a condition monitoring system
- Modular layout for core components
- Standard models covering a hoisting range of 1 to over 50 tons
- User-friendly and intuitive control system
Application
Hydraulic marine crane is widely applied to：
- container and bulk cargo loading and unloading operations on cargo vessels;
- platform material supply and underwater equipment deployment in the offshore engineering sector;
- underway replenishment and boat hoisting/lowering on naval ships and vessels;
- as well as salvage operations and scientific equipment deployment in maritime search and rescue and oceanographic research.
Why choose us?
- The YFM Hydraulic Marine Crane boasts a service life of over 15 years. Its hydraulic system features high precision and low maintenance requirements, enabling higher hoisting efficiency.
- With an intuitive operation interface, stable working performance, and comprehensive safety protection systems, it reduces operational fatigue and boosts work efficiency significantly.
- Our complete certification system (including approvals from major classification societies such as ABS, DNV, and CCS), global service network, and flexible configuration options ensure a smooth procurement process and reliable after-sales support.
- We provide full-process support covering selection consultation, installation guidance, and operation training.
- Leveraging our extensive service experience in global marine equipment, our engineering team can offer customized recommendations tailored to your specific operational needs.
👍 www.yfm-crane.com
👍 +86 15818704927
👍 anne@yfm-crane.com/info@yfm-crane.com
👍 https://www.yfm-crane.com/contact-us
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