Foldable knuckle cranes refer to hoisting machinery with a foldable, articulated boom structure and an integrated hydraulic power unit. These cranes feature high flexibility, high efficiency, and space-saving advantages, and are widely used in the aquaculture industry, offshore replenishment, or for the installation/maintenance of specific equipment.
YFM foldable knuckle cranes are multi-functional lifting equipment that combines a compact design, high lifting capacity, and excellent outreach capability. Optimized for weight, they can easily access high-altitude and long-distance operating areas. Their strong customizability allows them to meet a variety of operational needs, providing precise load capacity for cargo, equipment, and personnel.
Features
Load capacity ranges from several hundred kilograms to several tons.
Can be quickly folded and stowed to reduce wind resistance.
Reduces deck space occupation.
Multi-joint design enables it to "bypass" obstacles.
Manufactured with high-quality marine-grade steel.
Adopts heavy-duty anti-corrosion coating.
Steel structure optimized through finite element analysis.
Key structural components made of galvanized or stainless steel.
Core hydraulic and electrical systems feature excellent sealing performance.
High-performance hydraulic system maintains stable operation under hull sway of <5°/2°.
Switch between working and stowed states within minutes.
Safety devices including lifting height limiters, overload limiters, and emergency stop buttons
Redundant design.
Weight optimization.
Modular design.
Access passages for easy daily inspection and maintenance.
Compliant with maritime lifting equipment regulations.
Meets design and manufacturing standards of major classification societies.
Can be designed in accordance with API 2C specifications.
Factory Acceptance Test (FAT).
Optional
Wireless remote control equipment
Operator cab (Driver's cab)
Certifications and certificates such as CE, ABS, CCS, BV, RINA, DNV, RMRS, NK, and LR
ATEX Zone 1 and Zone 2 compliance
Heating kits / Anti-freeze kits
PLC control panel
Overload protection system(MOPS/AOPS)
AHC system (Active Heave Compensation system)
Personnel lifting and man-riding applications
Auxiliary lifting tools, such as grabs
Other customized functions
Application Scenarios
Thanks to its foldable design, the foldable knuckle cranes can be retracted into a relatively compact form when not in use, facilitating easy storage and transportation. This feature makes it particularly suitable for space-constrained scenarios-such as the decks of various types of ships (e.g., service ships, engineering ships, cruise ships)-where it is used for:
- Cargo loading and unloading
- Personnel transfer
- Net hauling for small fishing vessels
- Assisting in the deployment and recovery of scientific research equipment, etc.
By integrating compactness, high load capacity, a wide operating range, and strong environmental adaptability, foldable knuckle cranes have redefined material handling in the maritime and offshore industries. Capable of operating in environments with hull sway of <5°/2°, these cranes have become the preferred choice for efficiency, safety, and compliance across applications-from marine aquaculture to offshore platforms.
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