
CSR Ziyang Locomotive Co., Ltd. manufactures diesel and electric locomotives and provides locomotive maintenance, backed by strong machining and forging capabilities for railway and industrial applications.
CSR Ziyang Locomotive Co., Ltd., originally known as Ziyang Diesel Locomotive Works, is a Ziyang City, Sichuan-based manufacturer focused on railway traction equipment. Established in 1966 and put into production in 1973, the company has developed into a specialized producer of high-power main line diesel locomotives for passenger and freight transport, as well as shunting and electric locomotives.
The company’s core business spans locomotive manufacturing and maintenance services, along with an engine business covering locomotive, marine and gas engines, plus diesel and gas generator sets and power station EPC projects. It also supplies superior spare parts such as medium-speed engine all-fiber forged steel crankshafts and large forged castings.
With advanced machining equipment and capabilities ranging from heat treatment through cold treatment, the company supports locomotive and high-power diesel engine manufacturing and delivers high-quality, high-accuracy forging products for markets including automotive and shipbuilding. A dedicated after-sales service network has been established across multiple regions of China to provide timely, high-quality support.

Originally known as Ziyang Diesel Locomotive Works, the company was established in 1966 and began production in 1973. It has grown into a specialized manufacturer serving passenger and freight railway applications.
Established as Ziyang Diesel Locomotive Works.
Entered production and began manufacturing operations.
Completed large-scale technical reconstruction under the Railway Ministry.
Successive modernization and capability enhancement during the planning period.
The company operates advanced machining equipment and supports end-to-end processing from heat treatment through cold treatment. It also maintains whole-set equipment and technical capability for heavy forging, serving both railway traction manufacturing and precision forging needs.
The company manufactures high-power main line diesel locomotives for passenger and freight transport, along with shunting locomotives and electric locomotives to meet varied operational requirements.
A structured after-sales service system supports customers across multiple regions of China, including North China, Northeast China, Northwest China, East China and the Central Plains, delivering timely, high-quality service.
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