Thieman Tailgates markets a full line of hydraulic liftgates for light, medium and heavy duty trucks and trailers. From a 1000 lb. lifting capacity to a 6600 lb. lifting capacity, Thieman can provide a liftgate for every application. Stowaways, Railgates, Sideloaders, Toplifters, and Conventional models are all part of the Thieman line-up.