FAAC The automated system consists of a white aluminium beam with reflectors, optional signalling lights, a covering compartment and steel upright profile. Inside the compartment there is an operator consisting of the upright profile with a hydraulic unit and two plunging pistons fixed to it, which, by means of a rocker arm, rotate the beam. The latter remains balanced thanks to a balance spring fitted on one of the two plunging pistons. The electronic control equipment is also housed on the upright, inside a compartment, and the whole is protected by the external covering compartment. The system features an adjustable electronic anti-crushing safety, a device that guarantees stopping and locking of the beam in any position, and a convenient manual release for use in case of black-out or inefficiency.