The electrical rotary hook assembly is the important part of the crane, mainly used in conjunction with other lifting accessories, easy for supplying the power for the other lifting accessories, has the merit of flexible, reliable, anti-wear, safe, easy maintenance and so on. In our company, the motor, proximity switch, friction clutch, the bearing in the wheel and hook nuts are all chosen from the import or the national famous brands, even the wheels and the hooks are all chosen from the fixed providers for Baosteel group.