Marine Knuckle Boom Crane
OUCO marine knuckle boom cranes offer you the maneuverability that you are looking for. The crane’s boom articulates at the knuckle, which means that it can fold back like a finger. This innovative design allows you to save valuable space on deck.
However, the compact features of these cranes do not compromise their performance. Our hydraulic marine knuckle boom cranes have a lifting power ranging from 0.5t to 150t.
The combination of such power and flexibility makes fishing, construction, and transportation businesses worldwide choose our marine knuckle boom cranes.
Why OUCO Marine Knuckle Boom Crane?
As a leading manufacturer, OUCO delivers exceptional quality and value. We integrate premium components from world-class partners like ABB, Danfoss, and Parker with our patented designs and specialized steel. The result is a crane that is not only highly efficient but also fully compliant with all international safety standards.
Many clients select OUCO over established European brands for one simple reason: we offer identical quality at a significantly more competitive price. For a reliable, high-performance marine crane solution, OUCO is the perfect partner.
Custom Knuckle Boom Crane
In addition to the custom operator cab, you can also choose:
- External Hydraulic Power Packs
- Active Heave Compensation
- Ability of Personnel Lifting
- Withstand Higher Sea States
- Overload Protection, Safety Valve, Sound Alarm
- Anti-corrosion C5M / CX Paints & Coatings
- Constant Tensioning Winch System
- Cold Protection for Critical Areas
- Wireless Remote Control / Local Control Console
- Major Classification Societies Certification
Reliable Quality
At OUCO, we adhere to the highest standards in load testing. You can trust that our knuckle boom crane operates safely and efficiently, whether lifting loads submerged underwater or during ship-to-ship transfer operations.
Our cranes utilize advanced hydraulic technology designed specifically for offshore use. Equipped with heavy-duty cylinders and hydraulic safety valves for overpressure protection, both durable and reliable.
The crane’s user-friendly control panel features torque display, emergency stop button, stepless control, and a stable protection system, ensuring ease of use and enhanced safety.
Latest Finished Marine Knuckle Boom Crane
- SWL: 0.99 t @ 10 m
- Working Radius: 2.5 – 10 m
- Hoisting Speed: 0 – 15 m/min
- Hoisting Height: 25 m
- Slewing Speed: ~1.0 r/min
- Dead Weight: 6500 kg
- Mounted on a fishing boat
- SWL: 4 t @ 20 m
- Working Radius: 2.8 – 20 m
- Hoisting Speed: 15 m/min
- Hoisting Height: 30 m
- Slewing Speed: 0 – 0.5 r/min
- Featuring a cab and heating system, efficient live crab unloading into RSW (Refrigerated Seawater) tanks.
- SWL: 10 t @ 17 m
- Working Radius: 3 – 17 m
- Hoisting Speed: 0 – 12 m/min
- Hoisting Height: 40 m
- Slewing Speed: ~0.7 r/min
- Control System: Manual or wireless remote control.
- SWL: 2.85 t @ 14 m
- Working Radius: 2 – 10 m
- Hoisting Speed: ~20 m/min (cargo), ~60 mm/min (personnel)
- Hoisting Height: 40 m
- Slewing Speed: ~0.8 r/min
- Dead load 6200 kg, designed to be operated by both local and remote control
- SWL: 3.2 t @ 18.5 m / 5 t @ 13 m
- Working Radius: 3 – 18.5 m
- Hoisting Speed: 10 – 12 m/min
- Hoisting Height: 40 m
- Slewing Speed: ~0.6 r/min
- This Pedestal crane providing reliable support for multi-purpose cable laying and repair vessels, BV Certified, Sea state 3
- SWL: 1.6 t @ 27 m
- Working Radius: 3 – 27 m
- Hoisting Speed: ~10 m/min (cargo)
- Hoisting Height: 30 m
- Slewing Speed: ~0.6 r/min
- Additional Specifications: Low-temperature resistant design for scientific research operations in extremely cold regions.
- SWL: 5 t @ 15 m
- Working Radius: 2.6 – 15 m
- Hoisting Speed: 0 – 12 m/min
- Hoisting Height: 50 m
- Slewing Speed: ~0.5 r/min
- Design Temp: -10°C to 45°C, Sea state 2.
- SWL: 2.5 t @ 15 m / 1 t @ 30 m
- Working Radius: 4.2 – 30 m
- Hoisting Speed: 0 – 15 m/min
- Hoisting Height: 28.5 m
- Slewing Speed: ~0.6 r/min
- 1.5 times safety factor
- SWL: 8 t @ 16 m
- Working Radius: 2.6 – 16 m
- Hoisting Speed: ~23 m/min
- Hoisting Height: 30 m
- Slewing Speed: ~1.1 r/min
- Active Heave Compensation, Design Temp: -40°C to 35°C, RS Certified.
- Example Video
- CAD Drawing
- Certification
- Production Process
- Case
OUCO Delivers Four Knuckle Boom Cranes for Icelandic Crab Boats!
Two Customized Knuckle Cranes for Icebreaker Shipped to Russia!
OUCO-3T10M-KB Crane Successfully Installed on Offshore Supply Vessel!
Related Product
Knuckle boom cranes are like the Swiss army knives of cranes. Their secret lies in a multi-jointed arm that folds at a hinge, operating much like a human finger.
Structurally, the crane arm consists of two primary sections: a rear boom (main boom) and a front boom (outer boom), connected by an articulating hinge. This design relies on a precise hydraulic system to function:
- Rear Boom Movement: Powered by the extension and retraction of a luffing cylinder, the rear boom pivots up and down at the base. This movement effectively controls the overall working height of the crane.
- Front Boom Movement: A dedicated folding cylinder drives the front boom, allowing it to swing up and down entirely independently of the rear boom.
This articulated design allows the crane to bend, twist, and reach into tight spaces that would stump conventional stiff-boom cranes. Furthermore, they can extend far out for lifts and retract neatly into a stowed position to save valuable deck space on boats and offshore vessels.
Knuckle boom cranes are highly valued in the marine industry for their compact storage and unmatched flexibility. The independent movement of their joints provides exceptional precision and load control, making them perfect for a wide variety of demanding applications.
They excel in a wide range of offshore and maritime tasks, including:
- Shipboard Material Handling: Lifting and moving cargo or supplies around the deck.
- Personnel Transfer: Safely transferring crew members using offshore personnel baskets.
- Subsea Operations: Performing delicate underwater equipment handling and deployment.
- Scientific Research: Assisting in the deployment and recovery of oceanographic instruments.
- Offshore Support: Providing general maritime support on OSV (Offshore Support Vessels).
- Energy Sector Applications: Executing heavy-duty lifting on oil rigs and offshore wind farms.
Marine knuckle boom cranes excel in offshore environments thanks to their exceptional design.
- Superior Maneuverability: The knuckle boom’s unique articulation allows for precise lifting in tight spaces and a wide operating range, overcoming limitations of traditional cranes.
- 24/7 Reliability: Constructed from high-grade materials, these cranes are built to withstand harsh offshore conditions and can operate continuously.
- Compact Footprint: When not in use, the knuckle boom’s foldable design minimizes deck space requirements.
- Diverse Applications: Marine knuckle boom cranes offer exceptional payload capacities and multiple lifting points, making them suitable for various offshore and other business needs.
The testing process involves multiple stages, including no-load testing, lifting at 1x, 1.2x, and 1.5x the weight capacity, among others. These tests ensure the crane’s normal operation and detect any potential issues.
Our skilled engineers conduct rigorous checks. If a problem arises, immediate action is taken to identify and rectify the issue. This meticulous process guarantees that the machine is delivered to our customers without any concerns, upholding our commitment to quality assurance.
The marine knuckle boom crane must be operated by an individual with a valid operating certificate. Additionally, the operator should be thoroughly trained in all policies and principles related to the marine knuckle boom crane.
Operators must adhere to all safety protocols to ensure safe operations. It is essential that the operator is fully proficient in controlling the crane and understands its specific characteristics.
Lastly, always carefully read the crane operating manual provided by the manufacturer. Rest assured, OUCO provides all necessary documentation, including the user manual, maintenance manual, spare parts catalog, and FAT test program, in both paper and electronic versions.
To choose the perfect knuckle boom crane you must consider the following selection criteria:
- Structure and Performance: When choosing the right marine knuckle boom crane, you should consider its working condition, material structure, and boom length. You should also consider how much lifting or loading capacity the knuckle boom crane has. Make sure that it offers performance that suits your needs.
- Brand: When choosing brands for marine knuckle boom cranes, select the brand that is trusted for many years. Also, choose a brand that offers the highest quality marine knuckle boom crane at a competitive price with professional after-sales services.
- Materials: The marine knuckle boom crane should be constructed from high-quality, durable, and strong materials.
- Customization: Select the marine knuckle boom crane according to your design, features, and other specifications.
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