Our knuckle boom cranes lift heavy loads with extended jibs and offer great operational flexibility. Equipped with advanced control systems, they handle oscillatory movements from harsh weather/rough seas, ideal for high sea states. We also provide combined knuckle-jib telescopic cranes, plus tailored solutions (jib length, load capacity) backed by our marine lifting expertise—delivering reliable, customized support for your unique needs.
Features
- Multi-joint Knuckle Boom Design
Boom features a multi section folding structure, with folded length being only 30%-50% of its extended length , fitting narrow spaces on ship decks or offshore platforms;
Each joint rotates independently，enables “multi-angle precision lifting”
- Marine-Grade Corrosion Resistance & Durability
Electrical components (motors, sensors) have IP66/IP67 protection ratings, adapting to offshore heavy rain and spray environments to avoid short circuits.
- High Safety & Compliance Design
Standard multi-layer safety protection systems: overload protection, boom angle limiting, emergency stop buttons.
Optional ATEX/IECEX explosion-proof certification for hazardous areas to avoid spark-induced explosions
- Operational Flexibility & Customization
Optional telescopic + knuckle hybrid boom (some joints telescope) to further expand working radius
Power options: electric (for fixed platforms with shore power) or diesel. Supports remote control to reduce personnel exposure to offshore hazards.
Performance Specifications
| Parameter | Standard range | unit |
| Lifting capacity | 3-70 | Tons |
| Boom length | 3.5-21m | Meters |
| Min Lifting Speed | 0-3m/min | M/MIN |
| Max Lifting speed | 15-48m/min | M/MIN |
| Wind Resistance | 0-7 | Beaufort scale |
| Power Supply | Diesel/Electric |