The hook group is the most common type of hoisting tool in lifting machinery.
The hook is often hung on the wire rope of the hoisting mechanism by means of the pulley block.
The hook is divided into single hook and double hook.
The manufacturing method is divided into forged hooks and stacked hooks.
Single hook manufacturing is simple and easy to use, but the force is not good, most of it is used in the working environment with a weight of 80 tons;
The weight of the weight is often used with a symmetrical double hook.
Fold type hook by several piece of cutting forming plates riveted together, individual **** of plate when the hook won't destroy, security is good, but the weight is bigger, mostly used in big lifting weight or lifting steel barrels of cranes.
The hook is often impacted during the operation, and it must be made of high quality carbon steel with good toughness. http://www.hbcranehook.com/lift...with-laminated-hook.html