Abstract: A stock-feeding apparatus is provided for conveying rod stock to a processing machine and includes a guide tube pivotally mounted on two spaced-apart supports, with the guide tube being movable between a loading position and a feeding position. Mounted within the guide tube is a fluid-activated first piston having a holder at one end for holding the end of the rod stock. Mounted within the first piston is a second piston which includes a piston rod for pushing the rod stock into the processing machine. In addition, a revolving guide element is mounted in the guide tube between the second piston and the processing machine to limit buckling of the rod stock to be processed.