The SDiD3500 is a robust one-piece running track that has been specially developed for use in combination with an industrial drive and is suitable for sectional doors up to a maximum height of 3.5 meters. The SDiD3500 is also very suitable for use with a sliding door with a maximum length of up to 3.9 meters. This running rail is constructed from a heavy aluminum profile with a locked chain, bearing-mounted return wheels and an emergency release and is supplied with mounting material, stub axle, carrier and console for mounting on the top panel of the door.