Nantong Hongda Mechanical and Electrical Manufacturing Co., Ltd. Is professional manufactures of magnetic particle brakes, magnetic clutch, constant tension control system, photoelectric rectification system, and other products, and professional Sijo-foreign joint venture production backbone enterprise in the industry.

The company integrates the development, research, manufacture and service of magnetic powder brakes, controller of magnetic powder clutch and other products, and maintains long-term technical cooperation relationship with Southeast University, Jilin University, Aviation Flight College of China, Wuhan University of Industry and Technology and other many universities.

The company absorbs the advanced technology for the similar products of Japan's Mistsubishi and Kobelco Company, carries out industrial innovation on the basis of Mistsubishi magnetic particle machine, so that the product has better interchangeability, more stable performance and long service life and that some products can directly exported.