American standard shackle execution standard (How American standard shackles differ from domestically produced ones)

The main difference between American standard shackles and domestically produced shackles is that American standard shackles are manufactured according to American standards, while domestically produced shackles are manufactured according to Chinese standards.

The execution standard of American standard shackles is mainly based on the standard of American Crosby shackles. Most of the American standard shackles produced and sold domestically are manufactured according to this standard. Compared to our national standard shackles and Japanese shackles, American standard shackles are smaller in size, lighter in weight, and have a higher safety factor.

Specifically, the body and pin of the American Crosby shackle are made of 40Cr material. However, in China, most of the bodies of American standard shackles are forged from No. 45 steel, while the pin is made of 40Cr. The surface treatment of American standard shackles is usually galvanized or painted.

According to statistics, there are as many as 21 specifications for American standard shackles, including 0.5T, 1T, 1.5T, 2T, 3.25T, 4.75T, 6.5T, 8.5T, 9.5T, 12T, 13.5T, 17T, 25T, 35T, 55T, 85T, 120T, 150T, 200T, and 300T.

The choice between American standard shackles and domestically produced shackles depends on specific usage requirements and work environments. When using American standard shackles, it is important to not only select the appropriate specifications but also to check the connection direction of the pin to prevent bolt rotation and loosening. American standard shackles have certain advantages in terms of size, weight, and safety, and are widely used in many lifting scenarios.