Ningbo Sedson Vibration Reduction System Co., Ltd. was established in 1998, with a building area of 48000 square meters and more than 300 employees. We are a high-tech enterprise with large research capabilities and production scale in China, specializing in the design, research and development, and manufacturing of crankshaft shock absorbers. We focus on the research, development, and manufacturing of rubber shock absorbers, silicone oil shock absorbers, leaf spring/coil spring shock absorbers, and spring shock absorbers to reduce torsional vibration on engine crankshafts and camshaft transmission shafts. We also specialize in the research, development, and manufacturing of hydraulic shock absorbers (limited torsion shock absorbers), diaphragm couplings, leaf spring couplings, and carbon fiber couplings at the rear end of engines, as well as rubber isolation pads and high elasticity couplings.

The company's advantage lies in having a complete technical research and development team, sophisticated testing equipment, and a complete vertical production supply chain.

The R&D team is led by senior professors in the field of engine vibration and noise in China, supplemented by various testing equipment such as rubber shock absorbers, silicone oil shock absorbers, leaf spring/coil spring shock absorbers, hydraulic shock absorbers, and coupling series to analyze, calculate, and verify product performance.

The company has the ability to produce 1 million rubber shock absorbers, 800000 silicone oil shock absorbers, 50000 hydraulic shock absorbers, 10000 leaf spring/coil spring shock absorbers, and 10000 coupling series annually. The independently developed shock absorbers and couplings are widely used in diesel and natural gas engines for light, medium, and heavy commercial vehicles, gasoline and diesel engines for passenger cars, marine engines, marine/land generator sets, engineering machinery, agricultural engines, and unmanned aerial vehicles. The company obtained ISO9001:2000 quality system certification in 2001, TS/16949:2002 quality system certification in 2005, and then IATF16949:2016 and ISO14001:2004 certification in 2015. The company has obtained joint certification from relevant government departments as a "high-tech enterprise" and a "famous trademark in Zhejiang Province".

At present, the company has won honors such as Ningbo Enterprise Engineering Technology Center, Ningbo Specialized and Innovative Small and Medium sized Enterprises, Zhejiang High tech Enterprise Research and Development Center, Zhejiang Postdoctoral Workstation, and National High tech Enterprise, striving to become an excellent supplier of advanced engine vibration reduction and noise reduction solutions in China.