Guillotine automatic glass curtain system is one of the most innovative automatic windows systems. The system is powered by an electric motor. It is made of 10 mm or 19 mm tempered glass. The tempered glass moves up and down in triangular side channels. The pulley and motor provide up and down movement. Glass achieves proportional mobility through this improved movement system. In fact, the most important key component in this system is the permanent glass. Which is at the bottom of the window two other layers move above this permanent glass. Therefore, when the system is in the open position, the parts of the glass become like a railing.