ATEC: the Kinetic Energy Transfer Shock absorber
AFARC: Regulation controlled Friction Shock absorber
All ATEC-AFARC allows for example the control of the dynamics of opening or closing movement of a door.
Externally the device has the same appearance as a hydraulic damper. However, it has a similar mechanical response proportional to the solicitation speed squared the proviso that it is totally inoperative below a limit of operation speed.
This feature allows you to limit use so device wear for operating phases where it is really useful.