Sliding Gate Systems are the most secure automatic gate systems around, as due to their operation and positioning, when closed they are almost impossible to open.

Cantilever System

An alternative method to sliding gates is the Cantilever System. Here there is no sunken steel beam the full length of the gate plus itself again. Instead the entire gate is suspended on a relatively short cantilever system involving wheels set in a channel (rather like the wheels of a train carriage). The "overhang" of the gate is usually around 1/3 of the nominal gate width and the entire gate pivots on the cantilever wheels. It then operates by running back and forth on these cantilever wheels. The gate motor principle is the same (i.e. toothed rack and pinion), with the motor being located in roughly the same position as with a standard sliding gate system.