Posidyne Clutch/Brakes Allow Precise Positioning
April 10, 2018—
Posidyne clutch brakes allow precise positioning with virtually no maintenance or adjustment, making them ideal for a wide range of positioning applications in many industries.
Posidyne clutch brakes feature oil shear technology for rapid and precise stopping, starting, speed change and positioning, all without adjustment or maintenance. Ideal for applications with frequent start/stop cycles, such as indexing conveyors, rotary tables, batch feeders, rotary coal samplers, cutoff machines, and more, these unique motion control devices allow higher cycle rates (up to 300 cycles per minute), to increase production rates with lower downtime. Faster production rates and significantly longer service life than traditional (dry) clutch/brakes (often 5 to 10 times longer) yields increased uptime, productivity and ROI. Posidyne clutch/brakes are field proven in diverse applications such as lumber mills, shingle plants, fiberglass insulation production, food processing, packaging, 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.
Posidyne clutch/brakes feature a multiple disc design that produces high torque from a small package. Re-circulating the fluid dissipates the heat of engagement, which is a common cause of downtime with other clutch/brake assemblies.
A simple actuation system allows torque in the clutch and brake to be precisely controlled. Adjustment for rapid or soft starts and stops is easily accomplished. Manifold mounted control valves reduce response times by eliminating hoses and fittings, and are recommended for high cycle applications. By reducing the high starting inrush currents and the associated power factor imbalance in the motor these unique clutch/brakes can also reduce energy costs.
The Posidyne clutch 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 (99 lb./in. to 79,000 lb./in.) with cooling options, control logic and mounting arrangements to simplify and speed installation.