Duff Norton is the original manufacturer of the anode jack, used in the first aluminum-making plant in the U.S. and now used throughout the world.  A heavy duty version of Duff Norton’s standard actuator, the anode jack is 40% larger and has worm gears made of wear resistant bronze.  Since alumina dust is very abrasive, anode jacks have larger seals and use only heat treated alloy steel worms.  Many different options are available for unique applications.  Request A Quote!