Power-and-free (P&F) conveyors consist of a continuously-moving powered chain that, when engaged, moves a free (non-powered) load-carrying trolley through the material handling system. Overhead ...

It’s a great jack with a quick lift that gets the saddle to most cars in one pump. It had a great range, too, thanks to the threaded saddle, which can reach 550mm. But its appeal is limited as ...