I Steel Overhead Crane

I Steel Overhead Crane: The girder is the main bearing member in crane metal structure, the quality of the maintenance work is directly related to the safety and performance of the Overhead Crane. Therefore, need pay attention to:

1.    To avoid a sharp start, brake and a crane collide, because of the rapid action, will make the bridge produce additional dynamic load greatly.

2.    Periodically measuring deflection of main girder, the I Steel Overhead Crane, to verify that the girder is beyond the prescribed deformation.

3.    Check the main girder, hanging trolley weld, these are the main weld, When welding crack is found, should immediately stop using, then there will be cracks weld root out, use high quality electrode (E4303) welding. Heavy welding should pay attention to the process, to ensure the welding quality and prevent the welding deformation, Check the main girder and the connecting bolts of hanging car whether there is loose phenomenon.

When found residual deformation of main girder (or web instability), should immediately stop using it. After study, I-beam girder crane parameters, making repair methods.

Main girder after repair or reinforcement, i-steel single-girder crane, the supplier shall be for a trial run test method as above mentioned, qualified rear can use.