Double bridge overhead crane: This type of crane can be used in the indoor environments of sheds, silos and halls and has the ability to transfer loads in high capacities. Using this type of cranes is the best way to transfer material in halls with high height and width of more than 40 meters. To move loads that have a large length and width and transmit a lot of forces during movement, using a double-bridge overhead crane is the best choice. For transporting objects with a large capacity and width, the best option is a double-bridge overhead crane. This type of overhead crane is more useful than the single bridge overhead crane. This type of overhead crane is used to move heavy objects in a large width. The structure of the double-bridge overhead crane is such that the two bridges made of steel sheets are moved longitudinally by the two legs (guides) connected to it. The hoist (winch) moves with the help of guides and carriages on the width of the two crane bridges. It is possible to use two or more hoists on the two-bridge overhead crane in order to lift long loads. From the two-bridge overhead crane in activities such as; Steel industries, industries with heavy structures, factories with a permanent production line, foundries and all activities that need to transport heavy objects with high capacity.