The skid conveyor system is a complex combined conveyor system made up of a variety of standard unit modules, and the skid conveying objects relies on the friction of the rollers or chains to realize the functions of forward, backward, panning, lifting, accumulating and rotating. Skid conveyor system has the characteristics of flexible maneuvering, smooth running, compact arrangement, good accessibility, etc. It is widely used in automobile vehicle and parts welding, painting and other production processes.