August 22, 2008
Long popular in Europe, gantry cranes have become a widely accepted alternative to overhead bridge cranes. This type of crane is similar to the bridge crane except that it runs on a runway at the floor level. The bridge is supported by a pair of rigid steel legs which are carried by a pair of end trucks along the floor level runway.
NAI Specialized Gantry Cranes:
A combination of the bridge crane and gantry crane. One leg rides on the floor, while the other side™s end truck rides on a runway beam.
Unique Trackless Gantry
However, not all Gantry Cranes cost less than their bridge crane counterparts. A gantry crane is a more cost-effective alternative if:
Unlike most gantry cranes, which run on ASCE rails or an inverted angle iron, North American Industries offers gantry cranes that are specially designed to allow one leg to ride directly on a smooth concrete floor. Thus, the cost and travel barriers normally associated with gantry tracks are eliminated. For applications where a smooth, clean floor is not possible, or in high capacities, our gantry cranes can ride on a leveled, 1/2″ high steel plate. This floor-mounted plate provides an alternative to a 4″ high rail track and still permits unobstructed access to the cranes™ work area by forklifts, work carts and personnel.
A Gantry Crane May Save You Money
Because gantry cranes ride on the ground rather than on overhead runways, they don”t require a runway structure. Nor do they usually require concrete foundations. Their installation is fast and simple. Depending on the environment and application, gantry cranes can sometimes provide the same material handling capabilities as a comparable bridge crane system, but with a significant cost savings.
The following chart shows a typical example of the cost savings in purchasing a gantry crane instead of an overhead bridge crane. Please note that this price workup is only meant to be a demonstrative example of one instance where a gantry crane is advantageous for the customer. Contact our sales department for more information on whether a gantry crane is the best option for your specific needs.
For a 10 ton 60™ span Single Girder crane with a 200™ Runway 25 ™ high:
ASCE Rail: $2,900