Safety and Reliability – Overload Clutches for Entrance Control Systems

Turnstiles, barriers and access control systems are designed to attract as little attention as possible. They open when access is authorised, remain closed when it is not, and operate reliably whether employees are arriving at the start of the day, stadium gates are opening to thousands of visitors, or passengers are flowing through a busy transport hub.

Behind this apparent simplicity lies sophisticated drive technology. Every movement must be executed quickly, precisely and reliably.

Mechanical components require protection against blockages, misuse and unexpected loads. At the same time, these systems are expected to operate quietly, efficiently and with minimal maintenance, often across millions of operating cycles.

Couplings and brakes play a central role in achieving this. They control motion, secure positions, limit torque and help protect the mechanical system when someone walks into a barrier arm or a turnstile becomes obstructed.