Anti-crushing safety and mechanical force calibration on the FAAC 844 R 3PH are handled via an internal twin-disk clutch immersed in a continuous oil bath using dedicated FAAC HP OIL lubricant. This physical friction assembly permits precise adjustment of active thrust force to comply with impact threshold limits while preventing mechanical wear during high-cycle industrial automation.
The unit incorporates an irreversible, non-reversing worm gear and drive system with a 1:30 reduction ratio. When the electric motor stops, the mechanical gear train locks the gate leaf securely in position, preventing back-driving and eliminating the need for auxiliary electric locks or magnetic catches on standard sliding gate layouts. For planned maintenance or mains power failure, the operator is fitted with an integrated, key-protected manual release lever mechanism to disengage the drive gearing.
