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　　Hook group is a pickup device. The pickup device is a very important handling measure for cranes. It can safely and assist cranes in operation, and has the characteristics of saving time, reducing costs, simple structure, and lightweight quality. According to the shape of the items being transported, the picking device can be divided into two categories: general and special. Common picking devices include hooks and rings.

　　The hook group is a combination of hooks and moving pulleys. It is a very flexible and simple picking device for rotation. There are two types of hook groups: long hook group and short hook group. The long hook group uses short hooks, with its pulley shaft on the top and the hook beam on the bottom and installed parallel to the pull-up plate. The number of moving pulleys is both odd and even, the hook beam is shorter and the force is better. The volume used is shorter in length. The pulley shaft of the short hook group is also a hook beam, which eliminates the pulley number, but the number of pulleys must be symmetrical on both sides, so the pulley shaft is longer, the stress is not good, and the shaft is thicker. In order to prevent the hook from touching the pulley when it rotates, a long hook is used. But the overall height of the hook group is smaller. Therefore, the short hook group is suitable for cranes with smaller lifting weight.

　　Hook group is a pickup device. The pickup device is a very important handling measure for cranes. It can safely and assist cranes in operation, and has the characteristics of saving time, reducing costs, simple structure, and lightweight quality. According to the shape of the items being transported, the picking device can be divided into two categories: general and special. Common picking devices include hooks and rings.

　　The hook group is a combination of hooks and moving pulleys. It is a very flexible and simple picking device for rotation. There are two types of hook groups: long hook group and short hook group. The long hook group uses short hooks, with its pulley shaft on the top and the hook beam on the bottom and installed parallel to the pull-up plate. The number of moving pulleys is both odd and even, the hook beam is shorter and the force is better. The volume used is shorter in length. The pulley shaft of the short hook group is also a hook beam, which eliminates the pulley number, but the number of pulleys must be symmetrical on both sides, so the pulley shaft is longer, the stress is not good, and the shaft is thicker. In order to prevent the hook from touching the pulley when it rotates, a long hook is used. But the overall height of the hook group is smaller. Therefore, the short hook group is suitable for cranes with smaller lifting weight.