For the front idler which needs to have high durability, Sung Dong Industrial is equipped with the best technology and quality in all the processes of materials, processing, heat treatment, assembly, and production, not only with the competitiveness in after sales services. Especially, by improving the molding process, Sung Dong Industrial reduces resonance noise caused by the friction with the track and by making the section of the side flange curved, it prevents soil or dust from sticking to it.    
 Sung Dong Industrial is equipped with a high-tech production system that can produce and supply any model of idler, and through the OEM supply to local major and foreign excellent heavy-duty equipment manufacturers, its excellence is recognized