YFM telescopic knuckleboom crane features a combined telescopic and knuckle boom design.The crane's boom can extend and retract in a straight position. When not in use, the boom can be folded at the connection point with the crane's column to save space.
This design offers the following advantages: simpler structure, fewer failure points, easier daily maintenance, and lighter weight.
Structure
- Pedestal: The telescopic knuckleboom crane can be fixed on the deck, ship side, or platform, supporting 360° full slewing.
- Boom: Multi-section box structure, hydraulically telescopic like a telescope to adjust the working radius and height.
- Knuckle Joint: Articulated joint at the end of the crane's boom, similar to a finger joint, which can bend up and down.
- Power System: Our crane is equipped electrol-hydraulic drive, driving the crane to telescopic, folding, slewing, and hoisting.
Features
- Mostly used for small tonnage lifting operations within 5 tons
- Telescopic boom design enables long-distance operation
- Few hinge points, easy to inspect for wear
- Simple operation
- Hydraulic control system for more precise lifting
- Small deck space occupation
- Conventional lifting can be completed by a single operator
- Wireless remote control device available as an option
- Made of low-carbon steel, light weight
- All stainless steel hydraulic pipe fittings
- Hot-dip galvanized or high-solid epoxy coating
- Explosion-proof & salt-spray resistant electrical system
- Manual emergency release function
Technical Parameters
| SWL | See Loading Chart | ELEC.MOTOR | |
| MAX. Working Radius | 6m | Power | 4KW |
| MIN.Working Radius | 1.0m | Speed | 1470r/min |
| Hoisting Speed | 0～15m/min | Power | AC380V/50HZ |
| Hoisting Height | 30m | Protect Class | F |
| Slewing Speed | 0～0.8r/min | Working Type | S1 |
| Slewing Angle | 400° | Oil Flow | 30L/min |
| Luffing Time | 60s | Design Temperature. | -30°to 40° |
| Working Condition | Heel/Trim,≤5°/≤2° | Class | CCS |
Drawings
---for 0.35T/6m,0.99T/1-2.5m telescopic knuckleboom crane
Application
Although the boom cannot be fully folded, the telescopic knuckleboom crane is significantly shortened when retracted, making it ideal for vessels with limited deck space, such as:
- Tugboats
- Working vessels
- Engineering vessels
- Supply vessels
- Marine aquaculture vessels
Suitable for high-frequency, medium to light load operations:
- Lifting supplies and spare parts
- Launching and recovering small equipment
- Over-side transferring / Ship-to-ship transfer
- In-hall cargo handling (with telescopic boom access through hatches)
- Recovering fishing nets and similar equipment
Why choose Our telescopic knuckleboom crane?
Short lead time
- Simple design enables fast manufacturing, quick certification, and prompt delivery.
- Easy transportation allows fast on-board installation.
- Simply connect to the power supply and operate via the control lever for immediate use.
Suitable for various types of vessels.
- Compact size with small footprint, highly adaptable.
- We can provide certifications from major classification societies, facilitating vessel acceptance.
👍 www.yfm-crane.com
👍 +86 15818704927
👍 anne@yfm-crane.com/info@yfm-crane.com
👍 https://www.yfm-crane.com/contact-us
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