Views:47 Author:hengyuancrane Publish Time: 09-01-2020 Origin:Site
Gantry crane is a variant of bridge crane, also called gantry crane. It is mainly used for loading and unloading of outdoor cargo yard, storage yard cargo and bulk cargo. The gantry crane has the characteristics of high site utilization, large operating range, wide adaptability and strong versatility, and is widely used in port cargo yards.
Its metal structure resembles a door-shaped frame. Two feet are installed under the main beam, which can directly walk on the ground track. The main beam can have outriggers at both ends.
1.Main beam structure
Single girder gantry cranes and double girder gantry cranes are different; different main girder structures have different bearing capacities. If it is often lifted 5 tons, it is appropriate to buy a larger one to avoid a certain overload and unable to complete the operation, which is awkward. With good economic conditions and ample budget, it is wise to 2.choose a larger lifting weight
The problem of the span of the main beam
Depending on the site where the gantry crane is used, it is necessary to consider whether it is convenient to pass the vehicle below, to avoid occupying the place, causing other inconveniences, and also very headache. After installation, it cannot be changed.
3.Whether with a cab
Before installation, the number of driving needs to be considered. If it is used frequently, it is best to have a cab for safety. This way, personnel can stand in the cab to watch the work site below. The wide field of vision increases safety. Other people.
4.Do you need to install a frequency conversion structure?
Frequency conversion is more energy-saving, safer operation, and easier to drive, but the cost is higher. If small and medium-sized enterprises, you can ignore it, in order to save costs.
5.The lifting is mainly a trolley and an electric hoist
The lifting structure of each gantry crane is very important. If there is no good lifting or running, it will directly lead to slow operating speed and weak carrying capacity.
6.Consider work levels
For large-tonnage gantry cranes with trolley, try to choose a higher level, such as A6, small cranes, if the carrying capacity is low, try to choose A3 level.