mrmustang says these lifts are ROTARY LIFTs :
i have two lifts in my garage, one a ROTARY LIFT 2 post assymetrical. a GREAT lift for those considering these listed here for sale. Check out the new prices and you will see these used are at a considerable savings. I have had NO problems with mine. see :
http://rotary-lift.com/
When I bought my Rotary lift they were also the SAME lifts that were sold to Ford dealers by ROTUNDA< except they painted the Rotunda lifts red instead of stock Rotary lift blue and put a Rotunda label on them . Not sure if they are still the Rotunda source or not. They also used to be the supplier for the K-Mart car service center lifts, again, not sure about now.
like other lifts, Rotary is a good brand. FYI> bill