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The term “gantry crane” tends to get thrown around a lot in the material handling industry. We often find that when folks say gantry crane, they’re often referring to an overhead bridge crane system. A gantry crane and bridge crane are actually very different types of overhead cranes. A gantry crane is a type of overhead crane with a single or double girder configuration supported by freestanding legs that move on wheels or along a track or rail system. Gantry cranes are usually considered when there is a reason not to incorporate an overhead runway system.

These are typically used for an outdoor application or below an existing overhead bridge crane system. Unlike a bridge crane, a gantry crane does not need to be tied into a building’s support structure – eliminating the need for permanent runway beams and support columns. In some cases, this can result in a significant reduction in material costs and can be a more cost-effective solution compared to a similarly specified bridge crane.

Larger gantry systems may run on a rail or track embedded in the ground, typically in a straight line in a dedicated work area. Smaller portable gantry systems run on castors or wheels and can be moved about a facility for maintenance or light fabrication work. And there are different types of Gantry Crane Systems.

Full Gantry Crane Systems

Full gantry crane systems are the most popular configuration—consisting of two legs that ride on rail that is embedded flush with the top surface of the floor. They typically run in a straight line in a dedicated work area. This design allows motorized equipment like scissor lifts, fork lifts, carts, and trucks to roll over it and cross through underneath the crane.

http://www.mhicrane.com/rubber-tired-gantry-cranes/single-beam-rubber-tired-gantry-crane/