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Marine Cargo Deck Crane

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Marine Cargo Deck Crane
Marine Cargo Deck Crane
Marine Cargo Deck Crane
Durable Marine Cargo Handling Crane for commercial vessels
Marine Hydraulic Crane with high lifting capacity for port operations
Ship-mounted Cargo Crane designed for stability in rough seas
Marine Cargo Deck Crane
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Marine Cargo Deck Crane
Marine Cargo Deck Crane
Marine Cargo Deck Crane
Durable Marine Cargo Handling Crane for commercial vessels
Marine Hydraulic Crane with high lifting capacity for port operations
Ship-mounted Cargo Crane designed for stability in rough seas
Marine Cargo Deck Crane
Authentication mark:
CCC CE ABS BV CCS
Capacity:20t~50t (customizable)
Lifting Height:(customizable)
Voltage/Hertz:(customizable)
Brand Name: YUNTIAN
Place of Origin: Henan, China
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Introduction

Technical Data (General Version)

Application

Features

PRODUCT INTRODUCTION

The Marine Cargo Deck Crane is a heavy-duty slewing lifting solution directly mounted on vessel decks, primarily used for cargo handling, equipment transfer, and offshore supply operations in port, coastal, and open-sea environments. Featuring a high-strength steel structure and compact pedestal design, the crane integrates core components—including the electric motor, hydraulic pump, valve block, oil tank, and drum—within a cylindrical slewing column, significantly maximizing available deck space. Fully electro-hydraulic driven, the crane supports 360° continuous slewing and luffing operations, with hoisting, slewing, and luffing mechanisms working in coordination for easy handling and high loading unloading efficiency.

TECHNICAL DATA

Parameter Specification
Lifting Capacity 20t ~ 50t(customizable)
Safe Working Load (SWL) 2 – 60 t (customizable)
Max. Working Radius 6 – 40 m (customizable)
Lifting Height 15 – 50 m (customizable)
Hoisting Speed 0 – 24 m/min
Slewing Angle 360° (Continuous)
Slewing Speed 0.5 – 1.0 r/min
Control Mode Cabin / Wireless Remote / Pendant
Safety Devices Overload Limiter, Emergency Stop, Load-Holding Valves, Fail-Safe Brakes
Working Temperature -10℃ – +45℃

APPLICATION

application
Bulk Carriers
application
Container Ships
application
Platform Supply Vessels (PSV) / Offshore Supply Vessels
application
Offshore Engineering Vessels
application
Ports & Terminals
application
Multi-Purpose Vessels

FEATURES

1
360° Continuous Slewing: Highly flexible and efficient, enabling blind-spot-free rapid cargo handling.
2
Marine-Grade Durability: Built with high-strength steel and anti-corrosion coating, specifically engineered for harsh, high-salinity marine environments.
3
High Safety Standards: Equipped with overload protection, emergency stop buttons, and fail-safe braking systems as standard.
4
Compact Design: Minimal deck footprint, maximizing the available cargo storage space on the vessel.

FAQ

What are the primary differences and operational benefits of choosing a Twin Deck Crane over two Single Deck Cranes?

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Twin Deck Cranes mount two independent crane jibs on a single rotating turntable platform, offering exceptional versatility for multi-purpose vessels:Independent Dual Operation: In single mode, each crane operates independently to handle separate cargo holds (e.g., two $30\text{t}$ cranes working in adjacent hatches).Tandem Heavy Lifting: In combined tandem mode, both jibs sync through a master-slave PLC control system to double the lifting capacity (e.g., combining into a single $60\text{t}$ lift) for heavy project cargo, machinery, or long steel pipes.Maximized Deck Space: Consolidates footings, reducing the number of deck pedestals and freeing up valuable hatch cover storage area.

Which drive system is better for cargo handling: Electro-Hydraulic or All-Electric VFD?

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Drive selection depends on energy efficiency goals, maintenance preferences, and operating climates: Electro-Hydraulic Deck Crane: The traditional workhorse. Features high power-to-weight density, smooth low-speed acceleration, and proven reliability in harsh, freezing marine conditions. All-Electric VFD Deck Crane: The modern green standard. Eliminates hydraulic oil leakage risks over cargo holds, cuts energy consumption by up to 30% to 40% through regenerative braking, reduces noise, and requires lower routine maintenance.

How do I correctly interpret the Load Capacity Rating between Hook Duty and Grab Duty operations?

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Handling bulk cargo with wireless or motor hydraulic grabs imposes continuous heavy dynamic fatigue on crane mechanisms:Grab Duty De-Rating: When switching from standard hook lifting to grab operations, the Safe Working Load (SWL) is typically de-rated (e.g., a $30\text{t}$ hook crane is rated for a $24\text{t}$ grab + material payload).Thermal & Structural Reinforcement: Grab-rated cranes feature upgraded motor cooling insulation, heavy-duty slewing bearings, and strengthened wire rope sheaves to withstand rapid continuous cycling without overheating.

What marine safety systems ensure safe crane operation when the vessel experiences list and trim alongside berth?

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Vessels experience significant heel and trim during rapid loading/unloading sequences:Inclinometer & Limit Interlocks: Integrated dual-axis inclinometers continuously monitor ship motion. If list/trim exceeds certified limits (e.g., Heel $\mathbf{>5^\circ}$, Trim $\mathbf{>2^\circ}$), the system automatically limits slewing speeds or triggers warning alarms.Fail-Safe Hydraulic / Electromagnetic Brakes: All hoisting, luffing, and slewing drives feature spring-applied, pressure-released fail-safe brakes to prevent accidental load drop during sudden power failures.Class Compliance: Built and certified strictly in accordance with major IACS class rules (DNV, ABS, BV, ClassNK, CCS) including overload testing at 125% SWL.

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Our products are mainly exported to South America, Southeast Asia,Africa, Russia, Turkey, Middle East countries and so on.
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Customize lifting products to global standards

PROFESSIONAL CRANE MANUFACTURER

We are a physical factory that has been engaged in lifting manufacturing for nearly 20 years. Committed to providing all customers with high-quality services and building a long-term future A long-term business cooperation relationship.
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CONTRACT EXECUTION
Arrange product production in strict accordance with the contract, update the latest news after delivery and prepare for customs clearance.
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PRE-SALE SERVICE
24 hours online to ensure quick response to customer inquiries or online messages; provide detailed specifications and competitive prices.
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