Duff-Norton manufactures Mechanical Actuators (Screwjacks), TracMaster™ Electromechanical Linear Actuators, SuperCylinder™ Electric Cylinders, Spiracon® Rollerscrews, PowerMaster Motor and Synchro Cylinders, Rotary Union® Rotating Joints, and Mechanical and Air Jacks. Since our beginning in 1883, D
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