Abstract: A tube feeder has a longitudinal support equipped with two rows of wheels which support various diameter tubes and a loader for delivering tubes one at a time to the wheels. The loader comprises transverse tracks mounted on the longitudinal support and cooperating lifter blades associated with an inclined storage rack. The height of the longitudinal support is adjustable to locate the centerlines of various diameter tubes on the same fixed centerline. As the height of the longitudinal support is adjusted for a particular diameter tube, the loader is automatically adjusted to handle tubes of the same diameter.