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What is a Rubber Tyred Gantry Crane (RTG Crane)?

Rubber Tyred Gantry Crane Description

RTG Crane

A rubber tyred gantry crane (RTG) is a versatile mobile lifting machine designed for a wide range of industrial and logistics operations. Traditionally used for container stacking and transfer at ports and terminals, RTG cranes have evolved to handle heavy materials, machinery, yachts, and cross-plant transportation in environments where traditional bridge or gantry cranes cannot be installed.

They are powered by diesel, hybrid, or fully electric systems and equipped with telescopic spreaders, advanced control systems, and rubber tires that allow flexible movement across large yards or factories.

Main Components:

  • Steel gantry frame
  • Rubber tires
  • Hoisting system with telescopic spreader
  • Trolley and gantry travel mechanism
  • Power system (diesel, hybrid, or electric)
  • PLC control system and monitoring devices

RTG cranes are suitable for operations requiring high mobility, heavy lifting, and flexible layout adaptation.


Functions of Rubber Tyred Gantry Crane

Modern RTG cranes are no longer limited to standard container operations. With high mobility, strong lifting capacity, and adaptable configurations, they now serve in multiple industrial and logistics environments.

1. Container Stacking and Yard Handling

RTG cranes remain essential for stacking and organizing ISO containers up to 5–8 tiers high in ports, dry ports, and logistics yards.

2. Intermodal and Cross-Yard Transfer

They transfer containers and heavy loads between trucks, rail wagons, storage areas, and different operational zones, supporting multimodal logistics and block yard systems.

3. Yacht and Boat Handling

With customized spreaders or lifting beams, RTGs can lift, transport, and position yachts or large boats in marinas, shipyards, and coastal facilities.

4. Cross-Plant Material Transportation

RTG cranes are increasingly used in factories and industrial parks to move large components, steel structures, machinery, or prefabricated modules across production areas or between separate plant zones.

5. Replacement for Bridge/Gantry Cranes in Restricted Sites

In locations where overhead bridge cranes or rail-mounted gantry cranes cannot be installed due to space, foundation, or structural limitations, RTGs offer a mobile and efficient lifting alternative.

6. Temporary or Flexible Field Operations

RTGs can be deployed rapidly in outdoor or temporary working environments without fixed rails, making them ideal for expanding yards, modular production layouts, or hybrid storage zones.

To better illustrate customized industrial applications, here is a video of an RTG crane we designed specifically for a steel plant to handle steel coils. This tailored rubber tyred gantry crane demonstrates how RTG technology can be adapted beyond container yards to meet heavy-duty material handling requirements in manufacturing environments.


How Does a Rubber Tyred Gantry Crane Work?

1. Positioning

The operator drives or remotely controls the crane to the designated location.

2. Trolley Movement

The trolley moves horizontally along the main beam.

3. Container Lifting

The spreader is lowered, locks onto the container, and lifts it using hoisting ropes.

4. Traveling on Tires

The crane moves on rubber tyres to stack or transfer containers.

5. Precision Control

Equipped with PLC systems, GPS, and monitoring devices for safety and accuracy.


Advanced Power System & Mobility Features

Power Options

Modern RTG cranes are available with:

  • Diesel-hybrid system
  • Fully electric drive solutions

Variable frequency drive (VFD) technology ensures smooth speed control and improved energy efficiency.

Telescopic Spreader Compatibility

Compatible with 20ft, 40ft, and 45ft containers for versatile handling.

Steering and Travel Modes

The rubber tyre support structure allows:

  • 90° steering
  • Diagonal (crab) travel mode
  • Flexible turning in narrow yards

To better understand its movement and working modes, please view the video demonstration.

Wheel Configuration & Anti-Collision System

RTG cranes are supported by 4-wheel, 8-wheel, or 16-wheel large tubeless tires, depending on ground load requirements.

Travel systems may use two-wheel drive or four-wheel drive configurations.

To prevent collisions:

  • Manual deviation correction (anti-sway) system
  • Anti-collision devices at the four corners of the gantry

These systems ensure safe and stable operation in busy yards or industrial sites.


Advantages of Rubber Tyred Gantry Cranes

  • No rail foundation required
  • High mobility and flexibility
  • Suitable for narrow or changing layouts
  • High stacking density
  • Lower investment cost than RMG cranes
  • Diesel, hybrid, and electric options available
  • Easy operation and maintenance

Applications of RTG Cranes

Rubber Tyred Gantry (RTG) cranes are used in a variety of industrial and logistics operations, including:

  • Port container terminals: Efficient stacking, loading, and unloading of ISO containers.
  • Inland dry ports and rail freight yards: Flexible container transfer between trucks, rail wagons, and storage areas.
  • Industrial storage yards and logistics parks: Handling bulk materials or heavy equipment within confined spaces.
  • Yacht handling and marine operations: Lifting, transporting, and stacking yachts in marina or boatyard facilities.
  • Cross-plant material transport: Moving heavy materials or machinery between different factory or warehouse locations.
  • Sites unsuitable for bridge or gantry cranes: RTG cranes can operate in areas where fixed overhead cranes cannot be installed, providing a flexible alternative for lifting and material handling.

These expanded capabilities make RTG cranes ideal for operations requiring high mobility, heavy lifting, and flexible layout adaptation.


Alternative Option: Straddle Carrier for Small and Medium Yards

Straddle carriers provide an alternative solution for small and medium-sized container yards, combining lifting, stacking, and transport in one machine. They are ideal for limited space or medium throughput operations.


FAQ About RTG Cranes

What is a rubber tyred gantry crane used for?

Mainly for lifting, stacking, and transporting containers, heavy machinery, yachts, and materials in industrial and logistics sites.

How does an RTG crane move?

It runs on large rubber tyres with multi-wheel steering for 90° or diagonal movement.

What power source does RTG use?

Options include diesel, hybrid, or fully electric systems.

What is the lifting capacity of RTG cranes?

Typically 35–50 tons, depending on the model.


Conclusion

A rubber tyred gantry crane is a versatile solution for container stacking, material handling, and transport in modern logistics yards, industrial sites, and marine operations. With diesel-hybrid or electric power, VFD control, 90° steering, anti-collision systems, and telescopic spreaders, RTG cranes provide flexible, safe, and efficient lifting solutions.

For smaller yards or specialized sites, a straddle carrier offers a complementary, cost-effective option.

Contact us for RTG crane specifications, pricing, or customization options.

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