Types of electric window openers.
Basically there are three types of electric window openers which are used commonly. They are single chain opener, twin chain opener and linear actuator. Please find their details as below.
Single Chain Window Openers are suitable for operating most high level windows and vents. They are ideal for top hung, bottom hung and standard casement windows. The stroke can be customized from 100mm to 800mm. Extrusion available in different sizes to match window frame.
Twin Chain Window Openers are suitable for smoke control and large heavy windows requiring a large opening. They are especially particular for wide windows and roof vents that the width is more than 1,500mm.
Linear Actuators are for use on most roof vents, skylights and dome windows. With 300mm opening stroke as standard, available opening sizes of 50~1,000mm.