Gantry Crane Description – An Increasingly Popular Alternative to Overhead Bridge Cranes

aggmanstaff

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.



  • often costs less than a bridge crane
  • built to heavy duty Class D specifications, which meet the demands of high duty cycles and multiple shift operation, as well as providing decades of reliable service for all applications
  • available in spans to 150 feet and capacities to 150 tons
  • can be used either indoors or outside

NAI Specialized Gantry Cranes:


Single-Leg Gantry



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



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:






























Bridge Crane Gantry Crane
Crane $29,280 $40,240
Runway $29,108 N/A
Installation $22,915 $19,100
Crane Rail ASCE Rail: $2,900 Track: $6,880
TOTAL: $84,205 $66,220
Cost Difference:
$17,985

However, not all Gantry Cranes cost less than their bridge crane counterparts. A gantry crane is a more cost-effective alternative if:

  • You are currently in a leased facility and do not want to make a major investment in a bridge crane runway structure.
  • You may be planning to move the crane in the near future and want to take your entire investment with you.
  • You require a crane system that moves loads between the interior and exterior of your building.
  • You need long runway structures of over 150 feet where the runway steel and foundation costs are very high.

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