Telescopic Boom Marine Crane

Category： Marine Crane
Telescopic Reach & Payload：25m Extended Reach | 1T-50T SWL | 360° Rotation
Dynamic Motion Compensation：±3m Heave Mitigation | 30m/s Wind Tolerance
Saltwater Armor：316L Stainless Hydraulics | 500μm Epoxy Coating (ISO 12944 C5-M)
Fail-Safe Hydraulic Control：Dual Brake Systems | Emergency Retract (≤5s) | Remote Diagnostics
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Telescopic Boom Marine Crane | DNV/ABS/CCS Certified
Engineered by Henan Hengkun for Offshore Precision Handling

Brand: Henan Hengkun Crane Co., Ltd.
Applications: Offshore supply vessels, wind farm installation ships, cargo carriers, and marine platforms requiring compact, high-reach lifting solutions for cargo handling, equipment deployment, and subsea operations in dynamic maritime environments.

Conquer Dynamic Seas with Intelligent Lifting

From vessel provisioning to subsea equipment deployment, Henan Hengkun’s Telescopic Boom Marine Crane delivers 360° continuous rotation and active heave compensation (AHC) for precise operations in Beaufort Scale 6 conditions. Certified for SWL up to 80 tonnes at 15m outreach, our cranes are sea-proven on supply vessels across Bohai Sea and Southeast Asia routes.

Core Marine Engineering

Challenge	Hengkun Solution	Class Compliance
Wave-Induced Motion	Active Heave Compensation (AHC): Electro-hydraulic system with ±1.5m wave compensation	DNV-ST-0378, ABS Chapter 4
Saltwater Corrosion	Triple Shield Protection: 1) Sandblasted SA2.5 + Zn-Al spray (250μm) 2) Epoxy sealant (ISO 12944 C5-M) 3) Anodic protection on critical joints	ISO 9227 Salt Spray 3000hrs
Deck Space Limits	Compact Slew Design: 6.5m turning radius for 50t SWL Foldable A-frame (15° stow position)	IMO MSC.158(78) stability req.
Dynamic Loads	Dual Safety System: - SWL auto-derating at high outreach - Dual torque limiters (mechanical + sensor)	GL Section 12 dynamic factor 1.5x

Technical Specifications

Model: HEK-MT Series

Parameter	HEK-MT 25t	HEK-MT 50t	HEK-MT 80t
Max. SWL	25 tonnes	50 tonnes	80 tonnes
Outreach	4-22 m	5-28 m	6-35 m
Boom Sections	4-stage	5-stage	5-stage
Compensation Accuracy	±50 mm	±75 mm	±100 mm
Slew Speed	0.8 rpm	0.7 rpm	0.6 rpm
Hydraulic Pressure	280 bar	320 bar	350 bar
Operating Temp.	-25°C ~ +55°C	-25°C ~ +55°C	-25°C ~ +55°C
Protection Class	IP66 (all components)

Critical Subsystems

1. Intelligent Control Cabin

Dynamic Positioning Sync: Integrated with vessel’s DP2 system
Dual Operation Modes:
- Joystick control with load moment indicator (LMI)
- Remote CCTV operation (explosion-proof cameras)
Black Box Recorder: Stores 500hr motion/load data (IMO compliant)

2. Marine-Grade Hydraulics

Biodegradable Oil: ISO 15380 HEES compliant for zero sea pollution risk
Redundant Pumps: Triple-circuit design with automatic switchover
Seawater Cooling: Plate heat exchanger for tropical operations

3. Safety Architecture

Anti-Two Block (ATB): Laser + mechanical dual-sensor
Emergency Recovery: Backup battery-powered boom retraction
Storm Lashings: ASTM F2218 certified deck fittings

Vessel-Specific Customization

Vessel Type	Hengkun Adaptation	Certification Package
Offshore Supply	High-speed deployment: 60s full extension cycle Container twistlocks	DNV-SE-007, ABS 4-3-4/7.3
Research Vessels	Silent operation: <55 dB(A) at 10m Anti-magnetic sensors	GL Noise VIB-45, IACS E10
Wind Farm SOVs	Gangway integration: Unified control interface Motion-compensated platform	IEC 61400-3, BV NI641
Harbor Tugs	Low-profile boom: Air draft <8m Remote bollard pull monitoring	Class NK Part GF, CCS Chapter 8

Why Global Fleets Trust Hengkun

1. Sea-Proven Reliability

300+ cranes operating in South China Sea corrosion zones
MTBF > 8,000 hours (verified by CCS 2023 audit)

2. Certification Mastery

One-stop certification: DNV/GL, ABS, CCS, IRS, RINA
Full documentation: FEM 1.001, ILO 152, SOLAS Ch.II-1

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Telescopic Boom Marine Crane