Gantry crane usually runs on the ground track and is mainly used in open storage yards, docks, power stations, ports and railway cargo stations for handling and installation operations. To select the right gantry crane for your application, you should first learn about the gantry crane models and types that we supply. Here are several main models of gantry cranes for your reference:
AQ-MH single girder gantry crane
- 3~20t capacity
- 8~35m span length
- Work duty: A3, A4
- Working environment temperature -20℃ – +40℃.
- Used with CD1, MD1model electric hoist
- A small and medium-sized crane designed for general lifting purpose.
- Mostly used for loading and unloading or grabbing materials in open material yardsand warehouses.
AQ-BMH single girder semi gantry crane
- 3~20t capacity
- Span 8~30m
- Work duty: A3, A4
- The crane runs on the elevated rail system on one side and has support legs on the other side.
- Mainly used for the loading and unloadingoperations of cargo yards, stock yards and bulk cargo yards.
AQ-MG double girder gantry crane
- 5~500t capacity
- Span 18~35m
- Work duty: A3-A7
- A-frame structure
- Suitable for general loading and unloading, lifting and handling work in open yards and railways.
AQ-BMG double girder semi gantry crane
- 5~32t capacity
- Span 12~30m
- Work duty: A3-A6
- The legs have height differences, which can be determined according to the engineering requirements of the facility.
AQ-MDU double girder gantry crane
- 10~50t capacity
- Span 18~35m
- Work duty: A5, A6
- U-shaped structure, ideal for the handling of large items, such as containers.
- Commonly found in open yards, railways, ports, etc.
Classifications of Gantry Cranes
There are many ways to classify the gantry crane:
According to the girder construction: single girder gantry crane, double girder gantry crane.
According to the cantilever: single cantilever gantry crane, double cantilever, gantry crane without cantilever.
According to the way it travels: rail mounted gantry crane, rubber tyred gantry crane.
According to the lifting device: hook gantry crane, grab gantry crane, electromagnetic gantry crane, etc.
According to the occasion of use: general gantry crane, shipbuilding gantry crane, hydropower station gantry crane, etc.
The structure of the gantry crane can be A frame, U-shaped, L-shaped, semi-gantry, truss gantry system.
How to Choose The Right Gantry Crane
The gantry crane has different choices according to the working environment, working frequency, the type and weight of the material being lifted. When choosing a gantry crane, you need to consider the following points:
1. Single girder or double girder?
In general, when the lifting weight is below 50t, the span is within 35m, and there is no special use requirement, a single girder gantry crane should be selected. If the width of the gantry legs is required to be large, the working speed is high, or heavy and long items are often lifted, then the double girder gantry crane is a greater choice.
2. Determine the span and cantilever length
Span is an important factor that affects the quality of the crane itself. Under the premise of satisfying the conditions of using the equipment and meeting the standards of the span, the span should be minimized.
3. Determine the distance between cranes
There should be a certain space between the external dimensions of the gantry crane, the cargo, and the transportation vehicle passages in the storage yard to facilitate loading and unloading operations.
4. Principles for determining wheel track
- It can meet the stability requirements of the gantry along the track direction.
- The external dimensions of the goods should be able to pass through the outrigger plane steel frame smoothly.
- Make the wheelbase B proportional to the span S. Generally take the wheelbase B = (1/4-1/6) S.
5. Determine the lifting device
The most commonly used lifting device is hook. Others include grab bucket, electromagnetic chuck, carrier-beam, etc. The selection of the lifting device is determined by the type of load or material to be lifted.
To learn more about Aicrane gantry cranes, feel free to contact us.
