A large hook set is a common lifting device in lifting machinery.Hooks are often suspended from the wire rope of the hoisting mechanism with the help of pulleys and other components.
　　Large hooks are divided into single and double hooks according to the shape; according to the manufacturing method is divided into forged hooks and laminated hooks.Single hook manufacturing is simple, easy to use, but the force situation is not good, mostly used in the lifting capacity of 80 tonnes below the workplace; lifting capacity is often used when the symmetrical force of the double hook.Stacked hook by several pieces of cut and shaped steel riveted together, individual plate cracks will not destroy the entire hook, security is better, but the self-weight is larger, mostly used in large lifting capacity or lifting steel bucket crane.Hook in the process of operation is often impacted, must use good toughness of high-quality carbon steel manufacturing.
　　Large hook group classification is wide, generally include: unloading buckle, ring, round ring, pear-shaped ring, long ring, combined ring, S hook, nose hook, American hook rams' crook hook, eye-shaped sliding hook, with insurance card ring screw, chain unloading buckles, with a unique, novel, high-quality, safe, suitable for factories, mines, petroleum, chemical industry, and ship terminals, and so on.Lifting capacity from 5 tonnes to 150 tonnes.