Cantilever Systems do not require a ground track that may be advantageous where the driveway entrance slopes or requires minimal disturbance.

The main design difference is that the cantilever system has a special section bottom rail in which incorporates two sets of enclosed roller wheels set apart at a pre-determined dimension on a large foundation base.

The cantilever gate is approx 1/3 longer than a tracked slider, the extra length acts as a counterbalance so that the gate is free to slide back and forth, supported throughout the entire opening/closing width by the roller wheels within the bottom rail.

There is a slam post assembly at one end and stops at the other end, often the lower leading egde has a wheel which engages into a guide/shoe to ensure correct engagement upon closing.

The gate is held up-right by a guide rail and 2 no. Guides positioned at the mid or top rail height.

In the manual mode the gate is very easy to slide open and closed as the roller wheels incorpoate precision bearings.

The method of automating is based on a rack and pinion basis, the motor unit has a drive gear which engages into a linear rack positioned on the lower rear face of the gate, the gear wheel simply drives the gate open and closed.

The motor incorporates and control card which can be set up to the correct closing force and open/close limits.

Sliding Gate Systems will need to include appropriate safety devices to ensure complete safety.

Safety requirements will be identified during a site survey/risk assessment and may include the following:-

• Leading Edge Safety Strips
• Photocells/Safety Beams
• Induction Ground Loop Detectors
• Force Limitation - Motors