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The hook group is a commonly used spreader in the current lifting industry. According to different uses, they can be divided into two types: closed hook groups and semi-closed hook groups. The following is an introduction to their application characteristics, so that everyone can apply them more quickly.

Under the same lifting capacity, the profile height of the closed hook group is smaller than that of the semi-closed hook group, thereby increasing the effective lifting height of the crane but its lateral size is larger.

Especially when the double pulley block magnification is an odd number and the balancing pulley must be installed on the hook hanger, the closed hook group cannot be used, so it is only suitable for cranes with small lifting capacity and even pulley block magnification.

The semi-closed hook set is different from the closed type. Since the hook beam and pulley shaft are arranged up and down, all pulleys are installed on the pulley shaft. Therefore, the pulley (or magnification) is not restricted by the odd or even number. It can be said that the semi-enclosed hook group overcomes the shortcomings of the former, so many cranes now use semi-enclosed hook groups.

The above two types of hooks are common types. There are many manufacturers of semi-closed hook sets. If you have any questions, please feel free to consult us.

The hook group is a commonly used spreader in the current lifting industry. According to different uses, they can be divided into two types: closed hook groups and semi-closed hook groups. The following is an introduction to their application characteristics, so that everyone can apply them more quickly.

Under the same lifting capacity, the profile height of the closed hook group is smaller than that of the semi-closed hook group, thereby increasing the effective lifting height of the crane but its lateral size is larger.

Especially when the double pulley block magnification is an odd number and the balancing pulley must be installed on the hook hanger, the closed hook group cannot be used, so it is only suitable for cranes with small lifting capacity and even pulley block magnification.

The semi-closed hook set is different from the closed type. Since the hook beam and pulley shaft are arranged up and down, all pulleys are installed on the pulley shaft. Therefore, the pulley (or magnification) is not restricted by the odd or even number. It can be said that the semi-enclosed hook group overcomes the shortcomings of the former, so many cranes now use semi-enclosed hook groups.

The above two types of hooks are common types. There are many manufacturers of semi-closed hook sets. If you have any questions, please feel free to consult us.