The YFM 5-ton 20-meter telescopic knuckle boom crane (model: YFMKC-5T20M) was delivered to a Singapore-based offshore supply vessel operator in early 2020. The client needed to replace the old straight-arm cranes on three 45-meter operation vessels. The main requirements were to save deck space, increase the operation radius, and enhance lifting efficiency.
Project Challenges
1. Limited deck space: The aft deck of the operation vessel has a limited area, and the traditional straight arm crane occupies a large space, which hinders the stacking of goods and the passage of crew members.
2. Insufficient operation radius: The maximum operation radius of the original crane is only 12 meters, which cannot cover the deep part of the cargo hold and the edge of the offshore platform and shore. The vessel needs to frequently move to perform operations.
3. Harsh marine conditions: The equipment operates in a tropical saltwater environment for a long time, requiring resistance to seawater corrosion, wind resistance, and the ability to operate stably even when the ship tilts 5° sideways and 2° longitudinally.
4. Low operation efficiency and high operating costs: Frequent vessel movements result in an increase of more than 2 hours in the time for single cargo transfer, and the fuel and terminal costs remain high.
Solution: 5t 20m telescopic knuckle boom crane(model: YFMKC-5T20M)
We customize a telescopic and folding integrated marine crane for our customers, combining the folding boom with multi-section telescopic arms.
The key parameters are as follows:
• Rated load (SWL): 5 tons
• Working radius: 3 meters to 20 meters
• Type: Electro-hydraulic type
• Structural features: Joint folding boom + multi-section telescopic boom
• Floor space occupation: When retracted, it only occupies the deck space of 4055mm x 3232mm x 4452mm
• Self-weight: 18,500 kg
• Operating mode: Driver's cabin
• Rotation performance: 360° continuous rotation, rotation speed 0.8 revolutions per minute
• Hydraulic system: Yaskawa, Parker
• Motor: ABB, with a protection level of IP56 for the housing, IP44 for internal protection, and insulation class F for the motor
• Certifications: CCS, QC
• Coating: Using an epoxy coating that complies with ISO 12944 C5-M standard (dry film thickness ≥ 280 microns), providing strong resistance to seawater corrosion
Customer Review
"This 5-ton 20-meter telescopic knuckle boom crane exceeded our expectations. It has been in use for 12 months without any safety incidents. The compact folding design solves the problem of insufficient deck space. The 20-meter working radius covers the entire deck, making it easy to handle deck operations as well as operations between the deck and the shore. The equipment operates stably and reliably in tropical waters, effectively helping us reduce various operational costs. For ships with limited deck space and requiring a large working radius, this product is highly recommended!"
-- Singapore offshore supply vessel operator, Operations Director
YFM Telescopic Knuckle Boom Crane Core Advantages
1. Compact size, foldable for storage: Saves two-thirds of deck space, suitable for various types of work vessels, supply ships, and offshore platforms.
2. Large working radius, precise lifting: Electric-hydraulic drive, 5-ton safe load capacity, combined with a 20-meter working radius, easily handles small and medium-sized deck operations, 360° full-circle rotation, no blind spots during operation.
3. Ship-grade quality, durable: Professionally designed to resist seawater corrosion, can pass multiple classification society certifications, suitable for harsh marine conditions.
4. Efficient operation, cost reduction, and efficiency improvement: Significantly improves cargo handling speed, effectively reduces fuel and maintenance expenses.
5. Customized service support: Can be customized for arm length, load capacity, and control system according to the vessel's conditions.
Get immediate consultation and obtain the exclusive lifting solution
This telescopic knuckle boom crane is the ideal choice for vessels with limited space that are seeking a large working radius and high-efficiency lifting.
✅ Contact us immediately to obtain a customized quote and complete technical parameters!
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