... high precision performance. 2. Simple installation. 3. Durable. magnetic particle brakePB0.3, 0.6, 1.2, 2.5, 5, ... series of PB brakes is structures which inbreathe the compressed air to interspaced, and release the heat to exterior. ... For sake of enhance the cooling effect can set up air blower in the side of drive, therefore it is ... PB1.2 / PB2.5 / PB5 / PB10 / PB20 / PB40. magnetic particle brake