For many industrial applications, the first recommendation for an overhead crane system is a top running design. However, there are several reasons why underhung industrial overhead cranes may be equally effective or even a better option for a given application.
Carefully considering how the crane system will be used and how each of the industrial overhead cranes compares against in each other in the application is an important exercise. This is particularly true when the load capacity of the crane and the weight of the system will be a factor with the building.
The design of the underhung cranes allows them to be constructed without the need for support beams or columns. As they are lighter, they can be directly suspended from the beams of the roof.
With this difference in weight because of their design, it may be possible to have more than one system in a given bay or area of a facility without costly additional supports. Without these supports, the space required for each system is much lower and the systems can be mounted close to each other to save space. This is something that is not possible with the overhead top running systems that require the additional columns.
In specific applications, multiple overhead cranes can be designed to use the same runway. This provides the operator with the flexibility of choosing the appropriate system for each load to maximize efficiency. It also ensures there is always a crane available as a redundancy should there be a need for routine maintenance or repairs on the primary use crane system.
With underhung industrial overhead cranes, it is possible to connect similar crane systems through switches and load transfers. Loads can be moved from bay to bay or from crane to crane within the system. Additionally, it is possible to transfer the load using this type of crane from the crane system to a monorail.
The length of the runway for underhung ceiling mounted cranes can be unlimited. Without the need for supports, there is no issue with the weight of the system even on very long runs.
These underhung crane systems can use a hand-geared, manual push/pulls as well as a powered system. Power can be electric or pneumatic and all options are very practical, versatile, efficient and safe to operate. Choosing the right option is really a factor of the specific application, the weight of the load and what will be the most effective for the given industrial requirements.
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