Axial passaging in the air manifold is provided for connection at its inlet end to a source of pressurized air. The manifold shafts have outside diameters less than the diameter of the central bore in the die roll and less than the outside diameter of the cylindric body of the air manifold. A pair of shafts extend coaxially from opposite ends of the cylindric body beyond respective ends of the die roll for mounting of the air manifold and die roll on a press. The cylindric body of the air manifold has an outside diameter only slightly less than the diameter of the bore. The manifold shafts have outside diameters less than the diameter of the central bore in the die ro.Ī die roll and air manifold system comprising a rotary die roll rotatable in a press, and an air manifold having a cylindric body positioned in a central bore in the die roll. A die roll and air manifold system comprising a rotary die roll rotatable in a press, and an air manifold having a cylindric body positioned in a central bore in the die roll.
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