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.
Faster production rates and significantly longer service life than traditional (dry) clutch brakes—often 5 to 10 times longer—yields increased uptime, productivity, and return on investment. Posidyne clutch/brakes are field-proven in diverse applications such as packaging lines, food and chemical processing facilities, lumber mills, shingle plants, fiberglass insulation production, metalworking, and many more.
Designed with low inertia cycling components makes the Posidyne clutch brake more efficient, requiring less motor horsepower to accelerate the load, and less torque to stop the load. Their totally enclosed design is impervious to dust, chips, chemicals, coolants, caustic wash down, weather, and more, making them ideal for hostile environments.
The brake can be actuated by air or hydraulic pressure for use in a plant or outside remote applications. The hydraulic actuation package includes a hydraulic pump, solenoid valve, regulators, and a filter. A heat exchanger can be added for additional cooling.
The Posidyne is inherently explosion-proof with the addition of an explosion-proof actuation valve, or locating the valve in an explosion-proof cabinet. Multiple sizes are available to suit particular applications from ½ to 350 HP with cooling options, control logic, and mounting arrangements to simplify and speed installation. These cooling options allow the same compact size Posidyne clutch brake to be used on high inertia loads, or in extremely high or low temperatures.
Force Control Industries | www.resolveoptics.com