info@hengkuncranes.com
+8617260676687
DNV-GL/ABS Certified with Dynamic Load Control
Brand: Henan Hengkun Crane Co., Ltd.
Applications: Offshore supply vessels, cargo ships, workboats, and marine platforms requiring robust, simplified lifting solutions for cargo handling, equipment deployment, and logistics operations in confined or dynamic maritime environments.
Our Marine Single Knuckle Boom Crane is a
Henan Hengkun’s KB-Series Knuckle Boom Cranes deliver superior maneuverability in confined deck spaces through their articulated jib design. Engineered for vessel supply, port logistics, and offshore construction, these cranes achieve 270% greater lifting radius-to-stowed-length ratio compared to stiff boom alternatives, with capacities up to 150T.
Folding Boom:
Hydraulic knuckle joints for "over-obstacle" reach
Max working radius: 22m (stowed length: 7.3m)
Auto-Fold Sequencing: Single-lever stow/deploy in <90 seconds
Active Heave Compensation (AHC):
±2.5m wave compensation (ISO 18639)
95% load stability in Sea State 4
Corrosion Defense:
ISO 12944 C5-M coating system
Stainless steel hydraulic rods (AISI 630)
| Parameter | Specification |
|---|---|
| Lifting Capacity | 5–50 tonnes (SWL at specified radius) |
| Max. Working Radius | 8–20 meters (fixed single-knuckle design) |
| Boom Configuration | Single knuckle joint + fixed main boom |
| Slewing Range | 360° continuous rotation |
| Lifting Speed | 0–25 m/min (variable frequency control) |
| Hydraulic Pressure | 250–320 bar |
| Power Supply | 380–690V AC, 50/60Hz or diesel-hydraulic |
| Protection Grade | IP68 (critical components) |
| Wind Resistance | Beaufort Scale 12 (storm-proof design) |
| Ambient Temperature | -20°C to +40°C |
| Certifications | BV, DNV GL, ABS, Lloyds Register, ISO 4309 |
1. Precision Load Control
Proportional joystick control (CANbus J1939)
Automatic safe working load (SWL) calculation
Anti-two-block protection
2. Offshore Resilience
DNV-GL Storm Survival Rating (50m/s wind)
Saltwater-rated bearings (DIN 83305)
EMP-hardened electronics
3. Maintenance Engineering
Centralized greasing (42 lubrication points)
Modular valve blocks (field-replaceable)
OBD-III diagnostic interface
4. Safety Redundancy
Dual-circuit hydraulic braking
Emergency manual pump-down
Rope tension monitoring
| Application | Specialized Package |
|---|---|
| Platform Supply | 5T constant tension winch + AHC |
| Container Handling | Spread beam + twist lock adapter |
| Subsea Deployment | 3,000m wire rope + active heave |
| Arctic Service | -40°C hydraulic fluid + engine preheat |
| Capability | Knuckle Boom | Stiff Boom |
|---|---|---|
| Deck Footprint | 40% smaller stowed area | Requires swing clearance |
| Obstacle Clearance | Fly-over capability | Line-of-sight limitation |
| Cargo Access | Vertical penetration possible | Horizontal approach only |
| Set-Up Speed | <2 minutes | 5-8 minutes |
North Sea Wind Farm Case
*6×KB-50T units on SOV vessels:
35% faster turbine component transfers
Zero downtime during Beaufort 7 conditions*
Class Approvals: DNV-GL BIS, ABS LDFS, CCSA, BV
Safety Standards: EN 13852-1, ISO 4309
Dynamic Certification: ISO 19901-6 Motion Analysis
Lifting Gear: FEM 1.001 design category
Why Choose Us?
As a leading Chinese manufacturer, we specialize in cost-effective Marine Cranes that balance rugged simplicity with cutting-edge performance. Our single knuckle boom cranes are rigorously tested for reliability in extreme offshore conditions, offering unmatched durability for repetitive maritime lifting tasks.
Request a Quote – Simplify your shipboard operations with robust, no-nonsense lifting power!
Name: Henan Hengkun Crane Co.,Ltd
Mobile：+8617260676687
Tel：+8617260676687
Whatsapp：8617260676687
Email：info@hengkuncranes.com
Add：3K-008, Building B5, No. 299 Xindong Avenue (South), Hongqi District, Xinxiang city, Henan Province
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