Turnstiles are access control devices that separate people in access areas. With their help, simple access control, people counting and - in connection with reader systems - access control and the prevention of unauthorized access can be implemented. Depending on the area of application, there are turnstiles in a wide variety of designs. In normal operating conditions, an electric brake holds the turnstile in the locked position. When released by the reader system or an optional external manual control, the brake is released and passage in the respective direction is released.
The drive is triggered by light pressure and rotates the star by 120 ° or 240 °. Internal sensors prevent injuries from the rotating star hitting the person walking through. After passing through, the turnstile sends a signal to the reader. In order to avoid injuries in the event of panic, a slip clutch allows actuation from 40 kN in the locked state with the emission of an alarm signal.
In the de-energized state, the turntable can be turned manually with little force. For operation without control, for passage with bulky items of luggage or for quick evacuation of the site, the turnstile can be brought into a barrier-free, open position in which both bars remain outside the passage area.