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When it comes to crane lifting accessories, the most important thing is the hook.

Generally speaking, crane hooks can be divided into single hooks and double hooks according to their shapes. In terms of manufacturing methods, they can be divided into cast hooks and thin plate hooks. Single hooks are easy to manufacture and use and can be used to lift light objects, while double hooks are usually used to lift heavy objects. Generally speaking, cast single hooks are mainly used for lifting cranes below 30t, double hooks are used for lifting cranes 50t-100t; sheet single hooks are used for lifting cranes 75t-350t, and double hooks are used for lifting cranes above 100t.

Let’s take a look at the cross-sectional shape of the hook body. Generally there are circles, squares, trapezoids and "t" shapes. According to the stress analysis, the "T"-shaped cross-section planning is reasonable, but the casting process is also complicated; the trapezoidal cross-section is more reasonable and easy to cast, while the rectangular (square) cross-section is only used for plate hooks, the cross-sectional bearing capacity cannot be fully utilized, and the volume is large. Round cross-section is only used for small hooks. When casting a large hook tail, if a triangular thread is used, the stress concentration of this structure is serious and the cracks are prone to cracking, so the installation of the large hook tail is mostly trapezoidal or zigzag-shaped.

When it comes to crane lifting accessories, the most important thing is the hook.

Generally speaking, crane hooks can be divided into single hooks and double hooks according to their shapes. In terms of manufacturing methods, they can be divided into cast hooks and thin plate hooks. Single hooks are easy to manufacture and use and can be used to lift light objects, while double hooks are usually used to lift heavy objects. Generally speaking, cast single hooks are mainly used for lifting cranes below 30t, double hooks are used for lifting cranes 50t-100t; sheet single hooks are used for lifting cranes 75t-350t, and double hooks are used for lifting cranes above 100t.

Let’s take a look at the cross-sectional shape of the hook body. Generally there are circles, squares, trapezoids and "t" shapes. According to the stress analysis, the "T"-shaped cross-section planning is reasonable, but the casting process is also complicated; the trapezoidal cross-section is more reasonable and easy to cast, while the rectangular (square) cross-section is only used for plate hooks, the cross-sectional bearing capacity cannot be fully utilized, and the volume is large. Round cross-section is only used for small hooks. When casting a large hook tail, if a triangular thread is used, the stress concentration of this structure is serious and the cracks are prone to cracking, so the installation of the large hook tail is mostly trapezoidal or zigzag-shaped.