Cable Driven Tunnel Doors System

The system is driven by pulley and steel wire, motor gearbox. Detailed configuration depends on actual application size. Components include motor gearbox with winding drum, pulley and steel wire. 1 Motor grearbox A. Strong self-braking capability,manual releas edesign for power failure emergency B. build-in limit switch securing accurate of the ventilation C. the built-in potentiometer ensures precise positioning feedback D. thermal protection of moto rprevent smotor work overloading F. Slow rotation speed motor ensure accurate air flow in 2 Winding drum 3 Pulley Different diameter and color of pulley are available. 4 Steel wire Material: 62A、72A、82B. Length: customized

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