A Knuckle telescopic boom crane is a marine lifting machine that combines the features of articulated and telescopic booms. Its boom consists of multiple foldable and telescopic sections, usually including a main boom, a jib, and folding joints. A hydraulic system controls the boom, which can flexibly fold, extend, luff, and slew, achieving an extensive working range even in confined spaces.
Features
Lifting capacity up to 5+ tons
Working radius up to 25+ meters
Lifting height up to 30+ meters
Equipped with a precise hydraulic control system
Ergonomic control design
Cab with a wide field of vision
Compound movement capability (knuckle folding + boom telescoping)
Easy obstacle avoidance
Heavy anti-corrosion coating system applied to crane structural components
Key components (e.g., hydraulic cylinder piston rods) made of stainless steel or treated with chrome/zinc plating
Electrical components with high-level waterproof and moisture-proof performance
Reinforced design and high-quality welding process used for key connection parts
Daily maintenance points are within easy reach
Reasonable layout of filters, oil nozzles, etc.
Modular hydraulic and electrical systems
Strict compliance with relevant marine equipment standards
Available with classification society certifications, including CCS, BV, ABS, RMRS, LR, RINA, and DNV
Highly customized solutions (e.g., working radius, lifting capacity, overall dimensions)
Optional
Lifting capacity
Working range
Base dimension
Slewing angle
Luffing angle
Personnel carrying capability
AHC system (Active Heave Compensation system)
PLC control panel
Hoisting/telescoping limiters
Overload protection: MOPS (Main Overload Protection System), AOPS (Auxiliary Overload Protection System)
Wireless control device
Attachments such as hanging baskets and grabs
Explosion-proof rating
Heater/cooler
Working Principle
The electric motor or diesel engine drives the hydraulic pump → which delivers hydraulic oil to various hydraulic cylinders and hydraulic motors → enabling the crane boom to telescope and fold and the hook to lift, lower, and rotate.
The operator precisely controls the oil circuit and pressure of the hydraulic system through control levers or remote controls, thereby realizing various crane movements.
Application Fields
Ship Loading and Unloading: The knuckle telescopic boom cranes can be installed on the ship's deck to load and unload cargo, such as bulk cargo and containers, and can also be used for offshore replenishment operations.
Seafood Aquaculture Industry
Port Operations: In ports, it is used for loading and unloading ships. Its flexible boom can adapt to the loading and unloading needs of different types of ships and cargo.
Offshore Engineering: The knuckle telescopic boom cranes can be used for offshore wind power installation, material supply for submarine pipeline laying, and component hoisting.
YFM crane-We are focused on marine equipment solutions.
At sea, exaggerated promotions are meaningless; only reliable performance can withstand the test of wind and waves. Our Knuckle Telescopic Boom Cranes embody a profound understanding of the offshore operating environment and are dedicated to being a quiet yet reliable member of your fleet.It is not the most dazzling, but it is definitely the one that understands the sea best.
(You are Welcome to contact us for detailed technical solutions and quotations tailored to your ship type.)
👉 +86 15818704927
👉anne@yfm-crane.com/info@yfm-crane.com
👉https://www.yfm-crane.com/contact-us
Our services
01
Pre-sales
Collect information → Provide preliminary plan → Confirm the plan, provide quotation/revision suggestions, formulate revised plan and provide quotation → Confirm details and finalize the order.
Information collection includes the following:
- Type and quantity of cranes
- Maximum working radius and lifting capacity
- Minimum working radius and lifting capacity
- Lifting height
- Type of materials to be lifted
- Crane operation location and working environment temperature
- Requirements for classification society certificates or other certificates
- Other supplementary information
02
In-sales
Sign the contract and pay the advance payment → Refine and review the drawings → Purchase high-quality steel and outsourced parts → Cut and weld the steel structure → Assemble and conduct factory tests/classification society inspection → After passing the test, pay the balance and prepare for shipment → Transportation → Arrive at the destination → Installation, commissioning, and operator training → Successful delivery
03
After-sales
- Full-cycle technical support
- Maintenance services are available
- Spare parts supply.
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