Magnetic particle clutch, also known as electromagnetic powder clutch, magnetic powder clutch (model: TJ-POC, TJ-POC-A, TJ-POC-B, TJ-POC-C), is based on the electromagnetic principle and the use of magnetic powder to transfer the torque, with the excitation current and the transfer of torque basically linear relationship, in the same with the slip has nothing to do with the case of the transfer of a certain amount of torque, has a fast response speed, simple structure, No pollution, no noise, no shock vibration energy saving advantages, is a multi-purpose, superior performance of the automatic control components. According to the classification of shaft type, there are: double shaft magnetic particle clutch, hollow shaft magnetic particle clutch, hollow shaft magnetic particle clutch, according to the classification of cooling method, there are: self-cooled, air-cooled and water-cooled and so on.