20 to 100 Ton Air Motor Jacks
Duff-Norton Air Motor Jacks are offered in seven models from 20 ton to 100 ton. These precision built, sturdy, dependable machines employee the time-tested basic screw principle with fool-proof, built-in rotary air motor. These Jacks can be synchronized for simultaneous operation through use of a “Y” connection. Used for raising and lowering freight cars, diesel locomotives and truck trailers.