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Anode Jacks (Specifications)

   

Anode Jacks
Duff-Norton was the originator of the Anode Jack, which was developed in partnership with the Aluminum Industry. Our jacks were used in the first commercial aluminum-making plant in the United States and continue to be used in aluminum plants throughout the world.

The alumina smelting process involves high temperatures and loads. The Duff-Norton anode jack is a heavy-duty version of our standard actuator, and has been modified for each smelting facility¿s specific application.

The Anode Jack's worm gears are made of wear resistant bronze and are up to 40% larger
than our standard versions. Along with the larger worm gears are larger bearings and heavyduty seals. Sealing is very important because the alumina dust is very abrasive. Anode jacks use only heat-treated alloy steel worms. Additionally, high temperature grease is used. These jacks have a large overload capacity to handle the side loading stresses caused by the thermal expansions and contractions of the frames. They are also built to take the compressive overloads caused by occasional highjacking of the frames and frozen pots.



 
Duff-Norton manufactures Mechanical Actuators (Screw Jacks), Electromechanical Linear Actuators, Electric Cylinders and  Rotating Joints. Since 1883, Duff-Norton has earned a reputation for reliable, high quality products meeting the industrial lifting, positioning, and transfer needs of our worldwide customers and has been ISO 9001 registered since 1994. HyperLink
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