China National Heavy Duty Truck Group Hangzhou Engine Co., Ltd., Steyr CNHTC, a well-known diesel engine brand, began in 1958, a high-tech enterprise, famous for the 6120 high-speed vehicle diesel engine, and a large-scale backbone enterprise specializing in the production of heavy-duty high-speed diesel engines

China National Heavy Duty Truck Group Hangzhou Engine Co., Ltd. is a wholly-owned subsidiary of China National Heavy Duty Truck Group, founded in 1958, is the earliest large-scale backbone enterprise specializing in the production of heavy-duty high-speed diesel engines and a national high-tech enterprise in China. In May 2008, the company completed the relocation from Hangzhou city to Hangzhou Xiaoshan National Economic and Technological Development Zone, with a total investment of 2 billion yuan, covering an area of 700 acres of new factory area formed an annual production capacity of more than 120,000 diesel engines.

Under the strong leadership of SINOTRUK, relying on the large development platform of the group company, through enterprise relocation and process reengineering, the company has achieved a new round of development in terms of capacity expansion, product upgrading, technological innovation and equipment improvement.

The company's leading products are more than 400 varieties of diesel engines in two series of Steyr WD615 and WD415 that meet the requirements of China III, and the products are widely equipped in heavy trucks, large buses, construction machinery, truck cranes and generator sets, ship engines, etc., with a power range of 160~420 horsepower. All production lines are made of domestic first-class equipment, and the key equipment of the machining production line is imported from Germany; The general assembly line adopts bus control technology from assembly to testing to achieve efficient automation and intelligence; The key equipment of the casting production line is imported from abroad, and the production process fully implements the design concept of low pollution and low energy consumption, and the manufacturing capacity and technical level of castings have been in the leading position in China.

The company adheres to the quality policy of "science and technology as the guide, quality as the center, prevention as the center, continuous improvement, and providing users with satisfactory products and services", and motivates employees to continuously improve product quality and work quality. The company passed the ISO9001 quality system certification and registration in November 1997; In 2002, it passed the ISO9001:2000 quality management system certification; In 2004, it passed the third-party certification audit of the GJB9001A:2001 standard; In June 2005, it passed the third-party certification audit of ISO/TS16949:2002 standard.

After more than 50 years of development and accumulation, the company is standing at a new historical starting point, focusing on continuous innovation and improvement, and moving towards the goal of building a first-class engine manufacturing base in China.