Flat positioner for the positioning of frames with length between 3000mm and 4500mm, maximum width 2200mm and maximum capacity of 500Kg. The unit is composed of two tilted tables and liftable by an electrical axis; one is fixed at the basement and the other moves along a longitudinal axis with a stroke of 1500mm. There are some laser scanners in order to make the access to the working area safe and easy.