With a wealthy crane industry experience, Weihua designed and manufactured NW open winch for heavy duty operations and large tonnage crane systems in according to ISO, GB, FEM, DIN standards and modular design concepts. The open winch has compact structure, easy operation, precise positioning, safe and efficient operation. Many new technologies such as variable frequency control, braking energy feedback and safety monitoring system are applied. NW open winch adopts maintenance-free design, less easy damaged parts and convenient maintenance. It provides the user with the best logistics solution to ensure the reliability and safety of equipment operation.