Convertech designs and manufactures air shafts and chucks. It provides air roll lock differential, continuous lug, lateral motion, lug and button, small diameter, leaf and through style, and trapper leaf air shafts, as well as concentrically expanding air or mechanical shafts, and mechanical core shafts; and pneumatic/air expanding, pneumatic-mechanical high-torque, mechanical expanding, and mechanical high-torque core chucks, as well as cheap chucks. The company also offers shaft accessories, such as garter spring adapters, differential core spacers, rotary seals, rotary unions, and button valves. Its products are used in building materials, business forms, corrugated, converting, film, graphic arts, metals, metalizing, nonwoven, packaging, paper manufacturing, printing, sailmaking, slitting/rewinding, tag and label, textiles, traverse winding, wire, and woodworking industries.