When a vehicle chassis is transferred from the stamping press to the welding station, the transport belt must stay flat and correctly tensioned despite sudden speed changes. The GÜDEL cone roller is mounted on the drive side of the belt system to act as a self‑adjusting guide, automatically compensating for belt stretch and thermal expansion while keeping the belt centred on its path. By smoothing the belt’s travel, it eliminates edge wear, reduces the risk of mis‑tracking, and allows the line to run at higher throughput without interruptions. The same principle is applied in paint‑shop conveyors, where precise belt alignment is essential to maintain an even coating on body panels. In plant‑engineering projects for the automotive industry, the cone roller is also used on test‑bench conveyors that move engine blocks between inspection stations, providing reliable guidance where space constraints demand compact, low‑profile components. Its ability to adapt to varying belt lengths makes it a key element in keeping vehicle‑assembly lines running smoothly.