Sedsun Vibration Damper Co., Ltd is the leading torsional vibration damper company specialized in R&D development, testing & measurement, manufacturing of Torsional Vibration Damper in China, it has the most diversified customer base, and having the latest advanced production technologies as well as complete range of testing & verification facilities — — Two plants in China, one is in Ningbo (Zhejiang) which is our headquarter, another is in Nanjing (Jiangsu).

Sedsun has full independent R&D capacity, R&D team is headed by senior professionals specialized in research of engine vibration and noise control for dozens of years. Taking simulation method of numerical calculation, R&D team has full sets of testing facilities for torsional analysis, measurement and damper verification, meanwhile having close cooperation with raputable University & leading Research Institute of Internal-Combustion Engine of Shanghai.