Electromagnetic controlled silicon oil fan clutch assembly, the ERC130 clutch and in 11 leaf 680mm diameter with a guide leaf model fan product specifications (number): 1308ZD2A-001 models (engine): Dongfeng Tianlong / Hercules (Reynolds) engine fan input speed: 2700rpm meshing response time: less than 10s separation response time: less than 40s maintenance free, do not need to is filled with silicon oil failure automatic meshing (fan maximum speed)