Rail Mounted Gantry Crane

Rail mounted container gantry crane (also called RMG crane) is a type of large dockside gantry crane found at container terminals for loading and unloading intermodal containers from container ships. It is manufactured to individual customer needs in a variety of different stacking heights and spans.

Advantages of rail mounted gantry crane

• Exceptional anti-sway performance

• Increased productivity compared with alternative designs

• Low maintenance and spare part costs

• Smooth gantry operation

• Improved performance where high in-service winds prevail

• Optimum design for automation

• In-house expertise and excellent after-sales service

• Lower energy costs

Zhonggong rail mounted gantry crane specifications

Zhonggong rail mounted gantry crane features

1. Zhonggong Rail Mounted Gantry Crane is widely used together with a winch or trolley for lifting devices. It is a medium and heavy-size crane which travels on track.

2. Zhonggong Rail Mounted Gantry Crane is constituted by main beam, support legs, crane traveling organ, trolley travel mechanism, electric equipment and operation cab.

3. Zhonggong Rail Mounted Gantry Crane is a regular crane widely used in workshops, storage, port and hydroelectric power station and some other outdoor place, where it has a high frequency or more lifting times.

4. The proper lifting weight of our rail mounted gantry crane is 5 to 160 tons, and the proper span is 18 to 35 meters.

5. Power is supplied by cable or slide wire.

6. Its proper working temperature is -20--+40 centigrade. It is prohibited for lifting melt metal, flammable, explosive, corrosion, overloading, dust and other dangerous operations.

7.Customized design based on your specific applications is available. Grab bucket, container spreader, and other special lifting devices can be equipped to do special material handling work.  

8. High efficient, with the work class high up to A5( Medium) and A6( Heavy).  

9. Zhonggong Rail Mounted Gantry Crane provides three control modes for your selection: cab control, remote control, floor control.  

Applications Of Rail Mounted Gantry Crane

Used for loading and unloading of various container terminals, such as railway container stations, port container terminals

Rail mounted gantry crane design

Zhonggong provides professional rail mounted gantry crane for sale, our rmg cranes brings together decades of experience in crane design to achieve high performance, high reliability and operational accuracy, while significantly reducing operating costs and energy consumption. 

We can tailor rmgc cranes to your specific operational needs.

(1) Main beam structure

The main girder structure is composed of two box end girders and the frame girder is supported on the rigid and flexible legs. At present, the partial rail box beam is often used, the high strength bolt or welding method is used to connect the main beam and the rigid leg, and the twisted connection mode is used to connect the flexible leg. For the convenience of installation of rmgc cranes, the connection between the main beam and the end beam is generally connected by high strength bolts. 

(2) Door leg structure

For small and medium span rail container gantry crane, both rigid and flexible door legs adopt box structure. For the long-span crane, the three-degree-of-freedom dumpling connection is adopted for the connection between the flexible leg and the main beam, and a synchronous detection device is set up. 

(3) Trolley structure

The structure of the running trolley is different according to whether the hoisting mechanism is of wire rope drum type or telescopic rigid frame type, and the combined structure of box girder and grid is generally adopted. The structure of the running trolley takes into account the arrangement of the hoisting mechanism and the running mechanism of the trolley, and has a certain stiffness.