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The highly-regarded MAN9L21/31 diesel engine was successfully developed at Shaanxi Diesel Engine Heavy Industry Co., Ltd. The first four generator sets using this type of diesel engine were successfully loaded and sent to Dalian Shipbuilding Heavy Industry Group Co., Ltd. At this point, the export 4250TEU container ship will use domestic generator sets.
In recent years, while accelerating the development of the main shipbuilding industry, China Shipbuilding Industry Corporation has taken various measures to increase the level of manufacturing of ship's ancillary products. In order to further increase the localized loading rate of ship's ancillary equipment, in early 2004, CSSC Heavy Industry signed a production license agreement with German MANB&W Company and decided to introduce four types of marine auxiliary engines, such as L21/31, as a key project of the group company. Chai Heavy Industry Co., Ltd. has designated production. L21/31 series diesel engine is the main product of medium-speed diesel generator set of German MANB&W Company. It has the advantages of advanced technology, compact structure and high reliability. It is an advanced model in the modern ship auxiliary engine market and is widely used in land and marine applications. The field of power generation has a broad market prospect.
After the signing of the production license agreement, the localization of the 9L21/31 diesel engine developed by Shanchai Heavy Industry was completed at the end of April 2006. After completing the assembly and commissioning of the first unit, it successfully passed the British Lowe's on June 11. Classification Society (LR) and user approval.
While speeding up the development of localization of L21/31 diesel engines, Shaanxi Chaijian Heavy Industries Co., Ltd. took the initiative to continuously tap market potential and bring marine auxiliary machinery products to the market as soon as possible. With the strong support of CSSC, in early 2005, Shachai Heavy Industry and Dalian Shipbuilding signed a contract for supplying 40 sets of 9L21/31 diesel engines for Dalian Shipbuilding's 10 4250TEU export container ships. At present, Shachai Heavy Industries has more than 100 orders for hand-held marine auxiliary engines, including 72 L21/31 diesel engines, and marine auxiliary equipment has become a new economic growth point for Shachai Heavy Industries.
The successful development of the 9L21/31 diesel engine shows that in speeding up the adjustment of product structure and business strategy, Shanchai Heavy Industry has achieved a transformation from a single mainframe production to a main auxiliary engine concurrently operating strategy. At the same time, it also marked a new progress made by CSSC Heavy Industries through the combination of self-developed and introduced technology, and in terms of improving the localized loading rate of ship's ancillary equipment.
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