Two-speed drive

  • 13-Dec-2010 02:58 EST


Force Control Industries' two-speed drive package can be added to the back of a standard motor brake to provide inching speeds of 5:1 to 60:1 at full torque, preventing torque loss and heat problems. Features include a brake motor with built-in drive to provide low-speed control with continuous high-torque and high-speed capability as well as a simple mechanical drive not affected by electrical issues. Available as explosion proof and marine duty, the enclosed units are suitable for dusty, dirty, or wet environments on transfer or lift systems, rotary components, cranes, and winches. The Posidyne two-speed drive is air- or hydraulically actuated and consists of a high-speed motor connected through a spring-set friction stack operating as a clutch and a brake, while the MagnaShear features brakes actuated by an electrical coil instead of an air piston.

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