This document discusses elero, a company that provides electric linear actuators and control systems for movable facade elements. It summarizes elero's 30 years of experience in developing actuator solutions tailored to customer requirements. It then profiles three of elero's actuator systems - Picolo and Econom actuators which are stainless steel and suitable for high-rise buildings, the Limaline system which allows various slat movements, and the Vitroline rack actuator system for large facade areas.