PURPOSE: To enable workpiece to be continuously cut off for an extremely long time by transferring jigs mounting the workpiece on a transfer table and stopping serially the jigs in a plurality of units to cut off the workpiece put it as a piece of material to a predetermined dimension.

CONSTITUTION: After the completion of cutting off a workpiece, a body stock vice device is separated from the workpiece and a clamp device of a feed vice is removed from a leading jug 7 and moved back so as to be put the next jig into a workpiece cutting machine 5. Then, the next jig left stopped by a jig stopping device 43 is adapted to advance to extrude the leading jig onto a drive roller product carrier 14. When the leading jig 7 passes by second overflow sensors provided on both sides of the carrier 14, a second vertically movable table 19 is operated to send the n-th jig onto a material feed conveyer 13.