hello we have rotary column lifts we have 4 of them. somedays we have trucks going up and down like yoyo's they are a game changer for sure. If I can upload a picture I will. they are good for 18,000 lbs each. They are hydraulic and wireless. I would go wireless we run 2 on a pickup and 2 on another pickup. It gets pricy at first but if you don't go for the good options at the beginning you will regret it. Ours didn't come with the pressure gauges on them which comes with a chart so you can scale the truck, we were going to add later and it never happened yet after 3 years. we haven't maxed them out yet but we have 2 tandem trucks that they go up just a wee bit slower then the other trucks. we lift our forklifts as well.