This PU Wheel is customized for Shield Tunneling Machine by national railway construction group. Capacity of Shield Tunneling Machine is usually over several hundred tons. They originally import wheels from German which can last only 20 meters, and the install and uninstallation for big machine takes time and labor cost. Pepsen develop new polyurethane wheels and use special formulation and bonding process, wheels made by Pepsen can last 90 meters. Leader from national

company is very satisfied with Pepsen, and we are recommended as the exclusive urethane