Gear rack is typically mounted to the bottom rail of the gate. The drive cog of the motor acts on the rack to move the gate. Nylon rack is quieter but not as strong as steel rack. 

1m long with 6 fixing points

Up facing attachment for Cantilever Applications

Quiet Operation

Material Nylon with Steel Core
Load Rating  (kg)  700
Adjustability  (mm)  10

AR-6FPNRUP

Gear Rack,  <700kg. 1m, 6 Up-facing fix points, Nylon with Steel core