A molding assembly for manufacturing a syringe barrel, each syringe barrel provided with a cannula and having a cylindrical portion and a hub portion to which the cannula is fastened. A mold unit is provided having a first mold portion, a second mold portion axially movable relative to the first mold portion between an open position and a closed position, and a core situated in the mold cavity； and a clip unit for the cannula movable between an open position in which a cannula can be loaded in a proximal axial end of the clip, and a closed position. The clip unit is axially movable so as to arrange a cannula in the mold cavity, the movement of the clip being independent of the axial movement of the first and second mold portions between the open and closed positions of the mold unit.
