The rigid KBK double-girder crane is customized, and the combined self-supporting crane system adopts a C-shaped track. The track adopts a closed track design with high strength and light weight, which effectively reduces the wear of the track trolley and hoist wheels. In the case of insufficient lifting points, truss-type steel rails can be used to strengthen the load-bearing of the rails, thereby achieving a larger span and reducing the number of hangers. The steel truss design allows the lifting span to reach 9m, reducing the possibility of the support column obstructing the work site, so that the self-erecting crane is widely used in various industries.
