A double girder overhead crane is a type of overhead crane that uses two parallel U-shaped beams, one above the other. This design provides for the maximum load capacity by reducing the size and weight of the crane. They are commonly used in clean rooms where dust cannot be tolerated because there is limited space for mechanisms such as large lifting hooks and hoists.
A double girder overhead crane is very useful in a clean room, which requires good lighting. This overhead crane makes it easier to move heavy objects with ease while maintaining a sterile environment.