A broken crane hook can directly cause a crane breakage accident, a typical type of crane load loss accident.
A breakage accident is the direct result of a broken crane hook hook causing a load to fall during a lifting operation. When this occurs, the crane hook loses its load-bearing capacity, causing the suspended load to fall instantly, potentially resulting in casualties, equipment damage, and damage to surrounding facilities.
Common Causes of
Crane Hook Breakage
Material Defects: Internal cracks or impurities in the hook's manufacturing material reduce its strength.
Long-term Wear: The cross-section of a crane hook becomes thinner due to long-term use. When wear exceeds 10% of its original size, it reaches scrap standard. Forced use can easily cause breakage.
Overloading: Frequently exceeding the rated load causes metal fatigue, ultimately leading to brittle fracture.
Maintenance Failure: Failure to regularly inspect crane hooks for potential hazards such as deformation and cracks, or to promptly replace hooks that reach scrap standard.
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