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　　Semi-closedhook group must pay attention to the following points when rotating:

　　1. The larger the crane, the higher the lifting height, that is, the longer the wire rope between the top pulley group of the boom and the hook, the greater the possibility of the hook rotating;

　　2. The hook wire rope is wound into an odd match ratio and the even match ratio is likely to rotate the hook, and the hook with a smaller number of ropes matches is more likely to rotate;

　　3. The greater the weight a single wire rope bears, the greater the possibility of the hook rotating;

　　4. The shape and size of the hook assembly and the pulley size are smaller. The greater the possibility of the hook rotating;

　　5. The operating speed of the hook lifting and landing hook is unstable, especially when heavy objects are off the ground, the possibility of the hook rotating increases.

　　The above is about the reasons for the rotation of the semi-closed hook group, and I hope it can help you.

　　Semi-closedhook group must pay attention to the following points when rotating:

　　1. The larger the crane, the higher the lifting height, that is, the longer the wire rope between the top pulley group of the boom and the hook, the greater the possibility of the hook rotating;

　　2. The hook wire rope is wound into an odd match ratio and the even match ratio is likely to rotate the hook, and the hook with a smaller number of ropes matches is more likely to rotate;

　　3. The greater the weight a single wire rope bears, the greater the possibility of the hook rotating;

　　4. The shape and size of the hook assembly and the pulley size are smaller. The greater the possibility of the hook rotating;

　　5. The operating speed of the hook lifting and landing hook is unstable, especially when heavy objects are off the ground, the possibility of the hook rotating increases.

　　The above is about the reasons for the rotation of the semi-closed hook group, and I hope it can help you.