Duff-Norton Company

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Duff-Norton is ISO 9001 certified by the International Organization for Standardization. The company is an international manufacturing and marketing firm that produces industrial lifting, positioning and transfer products for worldwide distribution. Duff-Norton s products include machine screw, stainless steel, ball screw, micro-miniature and high-duty cycle actuators; electromechanical actuators, with capacities that range from 100 pounds to 100 tons; the SuperCylinder linear actuator; Rotary Union brand joints; a variety of ratchet, cable and hydraulic jacks; Rolaram brand actuators; and Spiracon brand roller screws. Duff-Norton is division of the Columbus McKinnon Corporation of Amherst, New York. Columbus McKinnon is a broad-line designer, manufacturer and supplier of material handling products and integrated material handling systems.