Rotary Lift added an air assist feature to the Productivity Jack, No. GUWSFF5, enabling technicians to use shop air to quickly raise the adapter to the desired height with the push of a button. Rotary redesigned the caster system, while lockable casters combine with a low center of gravity for more stability. The jack has a lifting capacity of 1,100 lbs. It offers a stroke of more than 43" and is 31.5" high. A variety of lifting tables are available for use with the jack.