Duff-Norton Screw Jacks
Contact SPS for More Information Duff-Norton Screw Jacks Machine Screw Actuators – 1/4 ton to 350 ton (Left) Machine screw actuators offer positive mechanical action, precise positioning, and uniform lifting speeds. Standard configurations include upright or inverted units with translating or rotating lifting screws, and top plate, threaded, or clevis ends. Duff-Norton offers a complete…