Telescopic Knuckle Boom Crane for marine deck/offshore plateform
Efficient · Flexible · Reliable -- Redefining Lightweight Material Handling Solutions
YFM telescopic knuckle boom crane is a fully foldable crane that combines the flexibility of an articulating boom with the extendability of a telescopic boom, enabling safe and reliable storage in limited spaces. The flexible articulated boom allows for precise, safe, and efficient material handling. The telescopic boom can achieve longer bow-free extension distances even under heavy loads.
YFM telescopic knuckle boom crane is specially designed for complex working conditions and complies with internationally recognized technical standards (CE, ISO 4301/4306 international standards).

Design Drawing



Technical specification
| 30KN×17m Telescopic Knuckle Boom Crane | |||
| SWL | 30kN | Environmental temperature | -35℃-40℃ |
| lifting height | 20m | Motor specification | Y160L-4-H |
| lifting speed | 10M/min | With heater | M3BP160MLB4 4P V6 |
| Rotation speed | 0..6r/min | Motor power source | 380V /5HZ/3P |
| Rotation angle | 359°(Incomplete rotation) | Protection class | IP56 |
| Wooking radius | 2.5~17m | Insulation class | F |
| Luffing time | 110s | Motor power | 20KW |
| Allowable tilt angle | ≤5° | Motor duty system | S6-40% |
| ≤2° | Load on deck | ||
| Protection level of electric control box | IP56 | Tippingmoment | 1350kNm |
| Electic control box controls voltage | 220V/50HZ/1P | Slewingmoment | 160kNm |
| Totalweight | 8.3t | Verticalforce | 125kN |



List of 30KN×17m Telescopic Knuckle Boom Crane Components and Assemblies
| Cable Pull Box | 1 | Slewing Bearing | 1 |
| Hook Limit Switch(with weight hammer and steel wire rope) | 1 | Luffing Cylinder | 1 |
| Lifting Winch | 1 | Seat Assembly Drawing (Left Line) | 1 |
| Marine Hook (3t) | 1 | Jib Assembly | 1 |
| Anti-rotation Steel Wire Rope | 50m | Rope Guide Bracket | 7 |
| Explosion-proof Pushbutton Box( IP56) | 1 | Extension Ladder | 1 |
| Cable Gland | 1 | Angle Indicator | 1 |
| High-strength Bolt M24×140 | 40 | Jib Head Sheave Assembly | 1 |
| High-strength Bolt M24×200 | 40 | Weight Hammer | 1 |
| High-strength Nut 24 | 120 | Slewing Limit Device | 2 |
| Thin Nut M24 (Grade 8) | 40 | Middle Column Assembly | 1 |
| Base Assembly | 1 |
Core Advantages
• Dual-structure design of articulation + telescoping: 180° foldable articulating boom combined with multi-stage hydraulic telescoping arm, easily coping with high-altitude and narrow spaces
• 360° full slewing: Equipped with precision slewing bearings, dead-angle-free operation range improves work efficiency by 30%
• Dynamic load calculation system for real-time monitoring of center-of-gravity changes
• Wireless remote control + cab dual-control mode
• Triple safety protection system: Overload automatic cut-off, hydraulic locking device, emergency mechanical braking
• Compliant with EN 13000/ISO 10535 standards, IP67 protection rating adapts to extreme working environments
• Supports multi-platform installation on ships/fixed bases, with 2-hour rapid assembly
• Optional with over 20 attachments such as grab buckets, baskets, electromagnetic chucks, etc., meeting diversified needs with one machine
• Highly customizable
• Compliant with international classification society standards (CCS/BV/RS/ABS/LR/DNV/RINA)



Application
The YFM telescopic knuckle boom cranes cover a variety of applications, suitable for luxury yachts, marine exploration, workboats, oil fields, aquaculture, coast guard or military industries. These cranes can also be further customized to adapt to more complex and harsh working environments.
• Service cranes
• Provision cranes
• cargo handling cranes
• Fishing cranes
• Fish farming cranes
• Access basket cranes
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