Double girder gantry Crane is widely used together with winch or trolley for lifting device. 

It is a medium and heavy size crane which travels in track.

Its proper lifting weight is 5 to 10 tons and proper span is 18 to 35 meters.

Its proper working temperature is -20--+40 centigrade and with three working class: A5, A6, A7.

Gantry crane is a bridge crane whose bridge is supported on the ground track by outriggers on both sides. It is structurally composed of a gantry, a trolley running mechanism, a lifting trolley and an electrical part. Some gantry cranes have outriggers only on one side, and the other side is supported on a factory building or a trestle for operation, which is called a semi-gantry crane. The gantry crane is composed of the upper bridge (including the main beam and end beam), outriggers, and lower crossbeams. In order to expand the operating range of the crane, the main beam can extend beyond the outriggers to one or both sides to form a cantilever. A lifting trolley with an arm can also be used to expand the operating range of the crane by pitching and rotating the arm.

Product Introduction: Double Girder Gantry Crane

The Double Girder Gantry Crane is an advanced lifting device that is widely utilized in various industrial and construction applications. Designed to operate in conjunction with a winch or 

specialized trolley systems, this type of crane excels at handling medium to heavy loads with ease and precision.

Key Specifications

Lifting Capacity: The Double Girder Gantry Crane is engineered to support lifting weights ranging from 5 to 10 tons, making it ideal for a variety of tasks that demand robust lifting solutions.

Span: This crane features a proper span of 18 to 35 meters, providing ample reach for lifting and moving materials across expansive work areas.

Working Temperature: It operates efficiently within a temperature range of -20 to +40 degrees Celsius, ensuring reliable performance in diverse environmental conditions.

Working Class: Catered to various operational demands, the crane is available in three working classes: A5, A6, and A7, which correspond to different duty cycles and usage intensity.

Structure and Design

The Double Girder Gantry Crane is characterized by its distinctive structure. It consists of:

Gantry Frame: This sturdy framework supports the entire lifting mechanism and is essential for ensuring stability during operations.

Trolley Running Mechanism: This mechanism facilitates the movement of the lifting trolley along the bridge, contributing to the crane's flexibility and efficiency.

Lifting Trolley: Equipped with advanced lifting capabilities, the trolley is responsible for raising and lowering loads while maintaining balance and control.

Electrical Components: The crane is fitted with a sophisticated electrical system that enhances its operational efficiency and safety, including controls for both the trolley movement and 

the lifting mechanism.

Some variations of the gantry crane may feature outriggers on only one side, with the opposite side supported by factory buildings or trestles. These are referred to as semi-gantry cranes, 

which offer an innovative solution for spaces where full support from outriggers may not be feasible.

Versatility

To enhance the operational range of the Double Girder Gantry Crane, its design includes optional cantilever extensions on the main beam. This allows the crane to reach beyond the 

standard support points, making it exceptionally versatile for a wide array of lifting tasks. Additionally, the incorporation of a lifting trolley with an articulated arm enables further 

extension in terms of pitching and rotating capabilities, thereby significantly expanding the crane's operational scope.

In conclusion, the Double Girder Gantry Crane is a powerful and adaptable lifting solution that meets the needs of various industrial applications. Its robust design, impressive specifications, 

and versatile functionality make it an essential tool for improving productivity and efficiency in any workspace.

Electric double girder rail travelling gantry crane with bucket is usually used in open-air warehouses or along railways.  His grab is usually used to grab materials such as coal blocks and sand. Electric double girder rail travelling gantry crane with bucket is usually used in open-air warehouses or along railways.

Application Scenarios for Double Girder Grab Gantry Crane

The Double Girder Grab Gantry Crane is an essential piece of equipment in various industrial settings, particularly where heavy lifting and material handling are required. This type of crane 

features an electric double girder design and is characterized by its ability to travel on rails, making it well-suited for outdoor applications. Below are key application scenarios where this 

versatile crane proves to be invaluable:

1. Open-Air Warehouses

In open-air warehouses, the electric double girder rail travelling gantry crane is widely used for efficient loading and unloading of bulk materials. Its robust structure allows it to operate in 

various weather conditions while offering high lift capacities. The crane can easily maneuver in vast areas, making it ideal for handling large quantities of materials like coal blocks, sand, 

gravel, and other aggregates. 

2. Railway Operations

Along railway lines, the gantry crane plays a vital role in maintaining essential infrastructure. It is employed to load and unload cargo from trains, ensuring smooth logistics and transportation. 

The crane's ability to grab heavy materials quickly and efficiently enhances operational productivity, allowing for timely arrivals and departures of freight trains. 

3. Construction Sites

The versatility of the double girder grab gantry crane is also seen on construction sites, where it facilitates the handling of heavy materials such as concrete blocks and steel girders. Its 

rail-mounted operation allows for precise positioning and movement within confined spaces, making it an essential tool for contractors aiming to streamline their operations and improve 

workflow efficiency.

4. Mining Operations

In mining environments, where extraction and transportation of heavy materials are routine, this crane plays a crucial role. Its grab system enables it to effectively transport mined materials 

like coal, ore, and other minerals to processing areas or loading docks. The reliability and strength of the crane enhance the safety and efficiency of mining operations.

5. Port and Dock Facilities

At ports and docks, the double girder grab gantry crane is utilized for the quick and effective handling of bulk cargo, such as sand, coal, and agricultural products. Its design allows for large 

compensation capacities, which is essential in fast-paced port environments where swift loading and unloading are critical to maintaining schedules and satisfying client demands.

Conclusion

The electric double girder rail travelling gantry crane with a bucket is indispensable across various industrial landscapes. Its capability to handle heavy materials in open-air environments, 

paired with its efficient design, makes it an ideal choice for warehousing, railway operations, construction, mining, and port facilities. This crane not only enhances productivity but also 

contributes to safer material handling, thus playing a fundamental role in the efficiency of industrial operations.