Fan-cooled Posidyne® clutch brakes allow rapid and precise stopping, starting, speed change, and positioning even in harsh environments such as high heat, high cycle rates, and high inertia loads. Oil shear technology transmits torque through lubricated surfaces so there is no wear, and no heat build-up, so the clutch brakes require no maintenance or adjustment. By adding fan cooling, the housing is continuously cooled, providing as much as 4.5 times the cooling capacity of non-fan models. The addition of a fan is recommended for applications where the input shaft rotates at high speed (1,800 or 1,200 rpm). Elevated ambient temperatures will adversely impact the radiation cooling effect.
If additional cooling is required, options available include liquid cooling, external cooling packages, and forced lube cooling. These clutch brakes allow cycle rates of up to 300 cycles per minute, increasing production rates with less downtime. They are ideal for applications with frequent start/stop cycles, such as indexing conveyors that feed palletizers, rotary tables, batch feeders, rotary coal samplers, cutoff machines, and more.