In this article, we will introduce RMG cranes in detail, invoving the definition, structure and parts, components function, features, application, specs, price etc. This article will help to know more comprehensively about RMG cranes for your handling needs.

What Is RMG Crane?

The rail-mounted gantry (RMG) crane is a heavy-duty lifting device for container and heavy cargo handling. Unlike rubber-tired RTGs, they operate along fixed rails to ensure high positioning accuracy and stable movement. Their core structure includes a rigid gantry frame, a hoisting mechanism (for lifting/lowering cargo), a trolley (for horizontal adjustment), and a container spreader (to grip containers). Most RMG cranes use electric power, making them eco-friendly with low noise and emissions.

Key advantages are high stacking efficiency (handles multi-tier containers) and suitability for dense storage areas. They are widely used in ports, railway container yards, inland transfer stations, and industrial yards—ideal for scenarios needing consistent, heavy-load operations. Safety features like anti-sway systems and overload alarms further ensure reliable work.

Compared to the rubber tyre gantry (RTG) Crane, RMG cranes run on fixed rails to boast higher positioning accuracy and heavier load capacity for dense storage. They have limited mobility but excel in stable long-term fixed-site work, unlike RTGs’ flexible yard movement.

RMG Crane Structure And Parts

The RMG gantry crane is a highly efficient container handling equipment widely used in ports and storage yards. Its main structure includes a main girder, outriggers, a tire-operated system, and a lifting trolley.

RMG-container-gantry-structure-drawings

RMG Crane Structural Drawings

  • Main Girder: With strong box type and standard camber, reinforcement plate inside the main beam. Adopts Q235/Q345 carbon strucural steel.
  • Traveling Machine: Adopts ZG340-640 cast steel or ZG-50 SiMn low alloy steel.
  • Crane Trolley: Flexible Job Scope, Efficient Electrical Drive Control System
  • Container Spreader: Convenient Operation, High Efficiency
  • Drivers' Room: The high-strength frame is welded by high-quality profile.

RMG Crane Components Function

  • Rail System: Supports machine's weight, guides linear movement, and ensures precise positioning.
  • Gantry Structure: Bears the hoisting load, maintains overall stability, and offers strong wind resistance.
  • Mécanisme de levage: Drives vertical movement, controls speed and container lifting and lowering.
  • Trolley Device: Moves transversely along main beam, adjusts spreader's horizontal position, and aligns with containers/vehicles.
  • Anti-Sway System: Suppresses spreader sway, prevents collisions, and enhances precision.
  • Safety Monitoring: Incorporates load sensors and limit switches with overload alarms and fault prevention.
RMG-container-gantry-crane-structure-and-parts

RMG Crane 3D Structure and Parts

What Is RMG Crane Used For?

RMG crane is mainly used to remove, load or unload containers, heavy equipment assembly, industrial raw materials and refrigerated containers. Widely used in container terminals, transfer stations, logistics zones, assembly workshops, spacialized yards etc.

1. Port Container Terminals (for storing and transferring containers)

2. Railway Container Yards (for transferring containers to/from railway freight cars)

3. Inland Container Transfer Stations (for regional container transfer)

4. Specialized Container Yards (for centralized container storage)

5. Heavy Industrial Raw Material Yards (for hoisting steel, ore, etc.)

6. Port Bonded Logistics Zones (for container handling under supervision)

7. Heavy Equipment Assembly Workshops (for hoisting large industrial components)

8. Specialized Yards for Refrigerated Containers (for orderly storage of refrigerated containers)

RMG Crane Features

1. Efficient Operation: The dual-sling design significantly improves loading and unloading efficiency, enabling rapid positioning and continuous operation, making it particularly suitable for high-throughput container yards.

2. Stable Operation and Energy-Saving: The flat, fixed track ensures smooth movement, minimizing vibration and impact. This effectively reduces energy consumption and meets environmental protection requirements.

3. Highly Automated and Intelligent: Applying laser scanning, GPS positioning and sensor technology, it identifies container locations, plans routes, and completes loading and unloading tasks. It reduces manual intervention and improves operational accuracy and safety.

Container Gantry Crane Types For Sale

Dafang Crane, as a TOP10 container crane manufacturer and supplier in China, offers various container gantry cranes, such as RMG container gantry crane, RTG container gantry crane, STS quayside crane and other port cranes.

If you want to choose the most suitable types of container gantry cranes to enhance efficiency and productivity. The following will make you gain a deeper understanding of RMG and RTG container cranes.

RMG Container Gantry Crane For Sale

RMG cranes are rail mounted cranes to unload, stack and load 20ft, 40ft, 45ft lSO standard containers.

They run on fixed rails, for container handling. With high load capacity and stable operation, they excel in dense stacking at ports or large container yards, boosting storage efficiency.

RTG Container Gantry Crane For Sale

RTG Cranes are tyre-mounted gantry cranes, for flexible movement in yards and terminals.

They are special equipment to remove, load and unload international standard containers. Widely used in container yards, they handle medium loads for efficient stacking, reducing infrastructure costs.

Container Gantry Crane Specification

ModePortique à conteneurs RMG
Deadweight10000 KG
Capacité de levage10-100 ton
La portée30/35/40 m
Hauteur de levage12.5/15.3/18.3 m
Cargo loading and unloading20ft 40ft container
Max Wheel Load250/280/300 KN
Alimentation électrique3 Phase AC 380V 50HZ
Control modeGround Control + Cabin Control (customized)
Obligation de travailA4-A7
ModeRTG Container Gantry Crane
Deadweight7592 KG
Capacité de levage35-70 ton
La portée23.47/26 m
Hauteur de levage15.5/18.5 m
Traveling Speed0-20 m/min
Maximum wheel load300 KN
Alimentation électrique3 Phase AC 380V 50HZ
Control modeGround Control + Cabin Control (customized)
Obligation de travailA4-A7

Notice: The items listed only for reference. Customizable solutions are available.

RMG & RTG Crane Price​

TypesCapacité de levageLa portéeHauteur de levageSpecificationsPrice(USD)
Portique à conteneurs RMG10-100 ton30/35/40 m12.5/15.3/18.3 m20', 40', 45'; 双20 ', 20', 40 ', 45'$150000 ~ $500000, depending on specifications
RTG Container Gantry Crane35-70 ton23.47/26 m15.5/18.5 m20', 40', 45'$230000 ~ $350000, depending on specifications

Conclusion

Now, you must have a deeper understanding of RMG container gantry cranes. And you must know how to choose right container gantry cranes to improve the work efficiency.

If you want to know more about gantry cranes, port cranes, overhead cranes, jib cranes, or crane parts, please contact our technicians and business managers. We will offer you the most professional guidance and support the most professional guidance and support.