The system consists of an aluminum frame
composed of aluminum perimeter tubes of 60×40 mm section and lifting aluminum crosspieces, 4 per wing. Central two side hinges facilitate the lifting of the doors.
The 230V motor with mechanical limit switch is inserted in the lower part of the crosspiece and the dead-end push-button is essential. The power supply runs along the side of the doors, inside a protective sheath and exits in the upper part near the support bracket. Sideways the profiles are closed by aluminum moldings fixed inside the profile.

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