Abstract: The present disclosure is directed to an apparatus (100) for applying a graft material to a stent. (4) The apparatus may include a hollow mandrel (3) adapted to receive a stent. The mandrel (3) may include apertures adapted to allow a vacuum to be applied in order to temporarily affix the graft material sheath (20) to the stent. A forming roller (8) lying axially parallel to and in contact with the stent (4) may be included. Rotation of the forming roller may rotate the stent about its longitudinal axis. A second roller (9) for applying the sheath (20) of graft material to the stent as the stent (4) is rotated about its axis may be included. Further, the present disclosure is directed to a method of manufacturing stent grafts.