A Frame Gantry's (also known as mobile gantry's) have a horizontal beam and end supports or legs.
A gantry crane is a type of overhead crane. With a gantry crane, the supports holding the crane up are fixed in location. They cannot move, and therefore the crane cannot move. For this reason, everything that the crane is going to lift must be brought to the crane. The supports form a large rectangular frame upon which the crane can move forward and back, and left and right. Anything that can be reached by the gantry crane is referred to as being in its operating area.
