ASD linear actuators have been developed as actuators that create a pushing or pulling force against a reference point. The principle of the actuator is based on the conversion of rotary motion to linear. Depending on the choice of drive and actuator body, the required axial force (static and dynamic) and the required speed can be achieved. Other useful functions and features can be obtained, such as variable speed and force, force detection, force limitation, positionability, high accuracy, easy installation and maintenance, low maintenance costs and long life, etc.