With a non-synchronized 3-elements slider, with its outer beam fixed, the opening is done first by the inner beam. Once opened, the intermediate beam is stressed by a torque due to the deported load. This travel under stress increases the force required to complete the stroke.
The magnetic synchronization device coordinates the opening of the elements, the intermediate beam being moved first, then the inner beam starting to move. The opening force is minimal throughout the extension of the slide and is thus eased.
A synchronized slide has a direction of assembly to be effective: The outer beam is fixed and the inner beam is mounted on the moving device. A synchronized slide, mounted upside down, will work as a normal slide.
This feature is provided by a magnet (on RA5R and RA5F). One should check that this is not incompatible with the application conditions.
For applications above 175°F (80°C), a magnet can no longer be used; A mechanical device has then to be optioned in to synchronize the slide.