60t Double Beams Container Gantry Crane

Key Features:

Double-Girder Design

Provides greater strength and stability compared to single-beam cranes.

Allows for higher lifting capacities (typically 30–100+ tons).

Suitable for handling ISO containers (20ft, 40ft, 45ft, etc.).

High Lifting Height & Span

Can span multiple rail tracks or container rows.

Lifting height accommodates stacked containers (up to 5–6 high in some cases).

Trolley & Hoist System

The trolley moves along the girders, equipped with a spreader for secure container lifting.

Hoisting mechanism allows vertical movement (single or dual hoist options).

Mobility Options

Rail-Mounted: Runs on fixed tracks for precise container handling in terminals.

Rubber-Tired (RTG): Mobile version for flexible yard operations.

Automation & Control

Can be manually operated, semi-automated, or fully automated (AS/ARMG).

Remote control and computerized management systems improve efficiency.

 

Comparison with Single-Beam Gantry Cranes

Feature	Double-Beam	Single-Beam
Load Capacity	30–100+ tons	5–50 tons
Stability	Higher (dual support)	Lower (single girder)
Span Width	Wider (multi-lane)	Narrower (limited coverage)
Automation	Easier integration	Limited options
Cost	Higher initial cost	More affordable
Maintenance	More durable, less frequent repairs	More wear over time

 

Lifting Capacity 320 tons
Span (Width) 3 - 12 meters (adjustable)
Lifting Height 3 - 10 meters
Working Class A3-A5 (light to medium duty)
Hoisting Speed 0.5 - 8 m/min (variable)
Main Beam Type Single/double girder (box-type)
Power Supply 220V/380V 3-phase or manual
Control Mode Pendant control/wireless remote
Hoist Type Electric chain hoist/wire rope hoist
Travel Drive Manual push or motorized
Corrosion Protection Hot-dip galvanized or marine-grade paint
Wind Resistance Up to Beaufort scale 6 (for outdoor use)
Operating Temp -20°C to +50°C

 

A Double Beams Container Gantry Crane consists of several key structural, mechanical, and electrical components that work together to ensure efficient container handling. Below is a breakdown of the major components:

 

1. Structural Components

A. Main Girders (Double Beams)

Two parallel steel beams that form the primary load-bearing structure.

Designed to withstand bending and torsional forces.

Typically box-shaped for strength and rigidity.

 

B. Legs (End Carriages)

Vertical supports at each end of the girders.

Can be fixed or adjustable in height (depending on the crane type).

Equipped with wheels or rail clamps for movement.

 

C. Cross Beams & Bracing

Reinforce the structure to prevent swaying under load.

Provide lateral stability.

D. Runway Rails

Steel tracks on which the crane moves (for rail-mounted gantry cranes).

Rubber tires are used instead for Rubber-Tired Gantry Cranes (RTGs).

 

2. Mechanical & Lifting Components

A. Trolley System

Moves along the girders to position the spreader.

Includes drive motors, wheels, and braking systems.

B. Spreader

A specialized lifting device that locks onto containers (20ft, 40ft, 45ft, etc.).

Can be fixed, telescopic, or twist-lock for different container sizes.

C. Hoisting Mechanism

Comprises wire ropes, drums, sheaves, and a hoist motor.

Lifts and lowers containers with precision.

D. Gantry Drive System

Motors, gearboxes, and wheels that move the entire crane along the rails.

May include anti-collision sensors for safety.

E. Braking System

Disc or drum brakes to stop crane movement safely.

Emergency braking for power failure scenarios.

 

 

3. Electrical & Control Components

A. Power Supply System

Rail-Mounted: Collects power from conductor bars or cable reels.

RTG: Often uses diesel generators or electric hybrid systems.

B. Control Cabin (Operator's Cabin)

Located on the crane for manual control.

Equipped with joysticks, monitors, and safety alarms.

C. Remote Control & Automation Systems

Some cranes use remote-operated or fully automated systems (ARMG).

Includes PLCs, sensors, and anti-sway technology.

D. Safety Devices

Limit switches (to prevent over-travel).

Load moment indicators (LMI) for overload protection.

Anti-collision systems (laser or radar-based).

Wind sensors (for high-wind shutdown).

 

4. Auxiliary Components

Ladders & Maintenance Platforms – For inspection and servicing.

Lighting System – For night operations.

Lubrication System – For gears, wheels, and bearings.

Anemometer – Measures wind speed for safety.

SKETCH

 

Main technical

 

Double Beams Container Gantry Cranes are widely used in ports, rail yards, and logistics hubs due to their superior strength, stability, and efficiency. Here are their key advantages:

1. Higher Load Capacity

Can handle 30–100+ tons, making them ideal for heavy containers and stacked loads.

More robust than single-beam cranes, reducing deflection under heavy loads.

2. Greater Stability & Durability

The dual-girder design provides better resistance to twisting and bending.

Suitable for harsh environments (high winds, heavy-duty cycles).

3. Wider Span & Coverage

Can span multiple rail tracks or container rows, improving operational efficiency.

Ideal for stacking containers 5–6 high in terminals.

4. Enhanced Precision & Control

Smoother trolley movement along the girders for accurate container placement.

Advanced anti-sway technology minimizes load swinging.

5. Automation & Smart Features

Can be integrated with automated stacking systems (ARMG).

Remote control and AI-driven optimization reduce labor costs.

6. Lower Maintenance Costs

Sturdy construction reduces wear and tear.

Easier access for maintenance and inspections compared to single-beam designs.

7. Versatility in Applications

Works with different spreaders (fixed, telescopic, or rotating).

Adaptable to rail-mounted (RMG) or rubber-tired (RTG) configurations.

1. Port Container Terminals

Ship-to-shore (STS) transfer – Loading/unloading containers from vessels.

Yard stacking – Organizing containers in storage areas.

2. Intermodal Rail Yards

Transferring containers between trains and trucks.

Handling double-stack rail operations.

3. Logistics & Distribution Hubs

Moving containers between trucks, warehouses, and storage zones.

Used in freight stations and inland ports.

4. Industrial & Manufacturing Plants

Transporting heavy machinery, steel coils, or oversized cargo.

Used in power plants, shipyards, and construction material handling.

5. Automated Container Terminals

Fully automated rail-mounted gantry cranes (ARMGs) for unmanned operations.

Integrated with terminal operating systems (TOS) for smart logistics.

 

The production process of a 200-ton mobile boat/marine lift crane involves several stages, from design and engineering to fabrication, assembly, and testing. Below is a detailed breakdown of the typical production process:

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1. Design & Engineering

Conceptual Design: Engineers create initial sketches and 3D models based on load capacity (200 tons), reach, mobility, and environmental conditions (marine use).

Structural Analysis: Finite Element Analysis (FEA) ensures the crane can handle dynamic loads, wind, and wave forces.

Hydraulic & Electrical Systems: Design of hydraulic cylinders, winches, and control systems for smooth lifting operations.

Material Selection: High-strength steel (e.g., ASTM A514) for corrosion resistance in marine environments.

Regulatory Compliance: Meets standards like DNV-GL, ABS, or Lloyd's Register for marine cranes.

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2. Material Procurement

Steel Plates & Beams: Sourced for the boom, chassis, and structural framework.

Hydraulic Components: Pumps, cylinders, hoses, and valves from certified suppliers.

Electrical Systems: Motors, sensors, and control panels (often waterproof for marine use).

Wire Ropes & Sheaves: High-grade steel cables for lifting.

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3. Fabrication

A. Structural Fabrication

Cutting & Shaping: CNC plasma/laser cutting for precision parts.

Welding: Automated and manual welding (Submerged Arc Welding for thick sections).

Boom Construction: Lattice or telescopic design for strength and mobility.

Chassis & Outriggers: Reinforced for stability during lifts.

B. Hydraulic & Mechanical Assembly

Hydraulic System: Installation of pumps, cylinders, and hoses.

Winches & Drums: Mounted for lifting and lowering operations.

Slewing Mechanism: Allows 360° rotation (if applicable).

C. Electrical & Control Systems

Control Cabin: Waterproof operator station with joysticks/sensors.

Load Monitoring: Load cells and limit switches for safety.

Power Supply: Diesel engine or electric motor (marine-grade).

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4. Assembly & Integration

Boom Installation: Mounted onto the chassis with pivot points.

Counterweights: Added for balance (if required).

Final Wiring & Plumbing: Connecting hydraulic and electrical systems.

Painting & Coating: Anti-corrosion paint (epoxy or zinc coatings).

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5. Testing & Quality Control

Load Testing: Lifting 200 tons (+25% overload test, per standards).

Functional Tests: Checking hydraulic movements, rotation, and stability.

Environmental Tests: Salt spray tests for marine durability.

Safety Checks: Emergency stop systems, overload alarms.

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6. Delivery & Commissioning

Transport: Disassembled for shipping or delivered as a mobile unit.

On-Site Assembly: Reassembled at the dock or shipyard.

Operator Training: Handling and safety protocols.

Workshop view:

The company has installed an intelligent equipment management platform, and has installed 310 sets (sets) of handling and welding robots. After the completion of the plan, there will be more than 500 sets (sets), and the equipment networking rate will reach 95%. 32 welding lines have been put into use, 50 are planned to be installed, and the automation rate of the entire product line has reached 85%.