Stone Peak Cranes

 

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Video Demo of
Self-Erecting Tower Crane!


For a demonstration of the mobility, erection, and safety features of the RDLift
Self-Erecting Tower Crane, click on the photo above.

 
 
 

 

Crane Site Requirements


the following requirements need to be met in preparation for using a crane:

 

Site Size:

14' x 14' to 16' x 16' pad is required, depending on the crane

 

Site Stability:

The crane pad must be structurally able to support the crane. Cranes may not be erected on fill unless it is compacted structural fill. Undisturbed native soil must be able to support the loads imposed by the crane when in use. Call for specific requirements.

 

Site Grade:

The crane pad must be as close to level as possible. There can be no more than 12 inches of variance from one side of the pad to the other, in width or length. 

If crane pad is adjacent to, and above a cut bank or a retaining wall, a minimum of 1:1 slope/distance from the crane pad to cut or wall must be maintained. An Engineer’s certification of a retaining wall design and load capacity may allow an exception in the case of a retaining wall.

 

Electrical Requirements:

There should be a 220V 50 amp electrical source within 100 feet of the crane. Generators may be used, but if not provided by Stone Peak Cranes LLC, the generator must provide a minimum of 15 KW.

 

Site Obstacles (Trees):

Since the crane must "weather vane" (turn freely) when not in use, there should not be any obstructions to the crane's movement. Trees lower than the jib height must not come in contact with the jib, trolley or cables.

 

 

 

 

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Last modified: 09/04/09