Overhead Bridge Cranes

There are 3 basic types of overhead bridge cranes:

Top Running Single Girder

A Top Running Single Girder (T.R.S.G.) overhead bridge crane is the most common type of overhead bridge crane. It may be mounted off building column haunches or a free-standing runway.
Top Running Double Girder

A Top Running Double Girder (T.R.D.G). overhead bridge crane allows the maximum possible capacity, span, and duty-cycle. Maintenance platforms may also be added to a TRDG crane to aid in crane and/or building service. TRDG cranes also have the advantage of offering the best hook height when compared with other overhead crane types.
Under Running Single Girder

An Under Running Single Girder (U.R.S.G.) overhead bridge Crane is mounted from the building ceiling eliminating the need for columns. This is advantageous for high traffic areas that need overhead material handling and also require a work are free of columns. Then compared with top running cranes, a URSG provides less hook height.

Please contact us for help in determining the best crane for your application.