How Does The Crane Hook Bear the Force?

In addition to the weight of the item itself, the crane hook must bear the impact force generated during lifting and braking. The force situation of the crane hook is introduced below.

• a) Single hook, which is a commonly used hook. It has a simple structure and is more convenient to use, but the force-bearing surface is small, and the material is mostly forged with 20 steel. Generally, the maximum lifting capacity does not exceed 80 tons.
• b) Double hooks. When the lifting capacity is large, double hooks are often used for lifting. Its force is uniform and symmetrical.

Crane hooks that have been used for a long time will inevitably have cracks. Taking the single hook as an example, briefly explain its common hidden dangers that are prone to cracks:

As shown in the figure, there are 3 common hidden danger parts of the hook: A-A section, B-B section and C-C section. During daily use, these three parts are prone to cracks. It can cause sudden brittle breakage of the hook, causing major accidents of personal injury and equipment damage.

The technical performance of the crane hooks has been improved through the research and years of operation experience of Henan flag crane Co., ltd technicians. Flagcrane provides standard and non-standard cranes and spreaders that have passed third-party certification. Welcome to flagcrane's factory visit.