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Adding to its extensive line of expanding shafts and chucks, Convertech, Inc. (Wharton, N.J.) recently introduced a lightweight, cost-effective, large diameter through shaft, as well as a small diameter shaft designed for smaller presses and slitters. Available in steel, aluminum, or carbon fiber, the through shaft incorporates advanced technologies that make the equipment lighter than conventional shafts, and includes coiled hoses and fittings for single-point inflation. The small diameter shaft runs in diameters from 7/16 to 2˝, and can accommodate virtually any size web.