During the year 1958, Doosan Infracore started to make diesel engines and has continued R&D to help stay ahead of the curve within Korea's heavy and material handling industry. Doosan started in 1975, producing diesel engines on a mass scale at its very first large scale facility. In 10 years the production technology of the company had advanced to the point that production of its very own diesel engine model was possible. Doosan's leadership position in the industry was secured. During the year 1995 Doosan made its very first low-emission diesel engine, followed by commercial vehicle CNG engines after three years. Ever since the year 2000, the company has developed technology for sophisticated common-rail engines, Tier 3-compliant engines and low-pressure natural gas engines. To be able comply with stringent Euro emission control standards, the company developed a heavy-duty, low emission diesel engine model during the year 2007.
Doosan Infracore has facilities worldwide to produce 60 different engine models, as well as parts and materials. Products include diesel engines and natural gas engines for forklifts, trucks, buses, construction equipment, generators, ships and more. Engines vary from 70 to 1,500 hp. Annual output is now 75,000 units.
The company is continually engaged in expanding R&D capabilities to expand to more markets and increase output. Demand for more stringent regulations governing engine emissions has led the company to build a compressed natural gas engine factory in the US during the year 2008, and a joint project factory in Xuzhou, China. The factory in China can produce 50,000 diesel engines on an annual basis, with production scheduled to begin in 2011.