The entire weight of the gate rests on the rails where the wheels moves on, therefore no hanging track needed.

The active leaf is driven by the motor through the teeth racks.

The passive leaf is driven by a chain-and-sprocket telescopic gear. It will travel as double speed.

(1) motor; (2) rail; (3) travel limit; (4) top roller bracket; (5) safe strike; (6) teeth rack; (7) chain-and-sprocket drive.