They represent products that find their purpose both in industry and more and more in residential buildings. They are characterized by a small maneuvering space in the service of opening and closing different dimensions of the opening, while not creating large energy losses.
They are most widely used in industry. Their advantage is the engine drive that is used for frequent openings. They meet the technical characteristics of small, medium, and large openings. They can be opened manually, with a chain, or with an electric motor.
Most common in small and medium-sized openings. They are characterized exclusively by manual opening, so they are used for rooms that are opened occasionally.
They are characterized by a small working space as well as the possibility of electrical control. They are most often used for the needs of medium openings with the occasional opening.