Gantry crane (single girder gantry crane and doubele girder gantry crane) operation is very simple, but sometimes in the gantry crane lifting process, will occur material flip, swing, etc., even the lifting material will fall down to harm the surrounding objects and personnel.
So how to avoid this dangerous accident? The emphasis is improving the stability of gantry crane lifting points.
Gantry crane lifting point must ensure that the object in the lifting process and place to maintain a stable without turning, swing or tilt, the lifting object must be the gravity balance, which is the common sense of lifting operations.
The center of standing object gravity is high, the support surface is small, stability is poor; and the flat object gravity center is low, the support surface is large, the stability is good. So during the lifting operation, should observe the shape and the gravity center position, raise the object place stability.
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