Ningbo 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.

The company has been acting as the leading designer & supplier of torsinal vibration damper both in damper development & mass supply, it is supplying to Deutz Dalian Engine Co., CNHTC (China National Heavy-Duty Truck), Weichai Power, Yulin Diesel Engine, Dongfeng Chaoyang Diesel, FAW Wuxi Diesel, BYD, Chery, Great Wall, Perkins Tianjin with its own design, taking one third (1/3) of domestic torsional vibration damper market share, having yearly production capacity of 500,000pcs for visco damper and 1,200,000pcs for rubber damper. The dampers are used on passenger car, light duty, medium duty & heavy duty commercial vehicles, marine M/E & genset, construction equipment & stationary enegine apllications.

The company has full independent R&D capacity, R&D team is headed by senior professionals specialized in research of engine vibration and noise 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.

ISO9001:2000 was certificated in 2001 & ISO/TS16949:2002 was certificated in 2005.