Electric spring-return actuators from Schiebel Actuators are electric actuators with a purely mechanical safety function. The working principle is based on a non-self-locking actuator with a pretensioned disc-spring package connected without couplings. In the event of a power outage or triggering of the safety function, the actuator moves into a preset position so that no hazards are posed to humans or the environment. They come with integrated controls with a Bluetooth interface and an app with which remote control of actuators is possible. Operation and configuration data can be sent for online diagnosis, making preventive maintenance as well as swift remedying of malfunctions possible. 770/349-6308; www.schiebel-actuators.com.