Outer aluminum tube is corrosion-resistant and protects translating tube, lifting screw and nut
Wiper-scraper seal in end of outer tube keeps dirt out and lubricants in
Bronze guide bushing inside of outer tube reduces lateral movement of translating screw
Translating tube zinc coated for weather-resistance
Single or quadruple lead ball-bearing type lifting screw and nut for higher efficiency and long life
Vent in outer tube prevents pressure build-up in the actuator
Furnished with standard clevis end on translating tube. Threaded end is available; and on special order, depending on application, any type of threaded connection may be substituted.
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Since 1883, Duff-Norton has earned a reputation for reliable, high quality products that meet the industrial lifting, positioning and transfer needs of our worldwide customers. Both our standard and custom designed products are subjected to the same rigorous testing throughout the design process to assure maximum performance and quality. We have been ISO 9001 registered since 1994, and practice and conduct lean initiatives regularly.