The water cooling magnetic particle brake magnetic particle clutch is often used in papermaking machinery, printing machinery, plastic machinery, rubber machinery, textile machinery, printing and dyeing machinery, wire and cable machinery, metallurgical machinery and other related to the winding and winding tension control in the industry. Magnetic particle brake magnetic particle clutch is often used for the power measurement loading and braking of the transmission device. The main torques of ATO magnetic particle clutch are 6Nm, 15Nm, 25Nm, 50Nm, 50Nm, 100Nm, 200Nm, 400Nm.