China's first domestically developed 300 km/h "Harmony" EMU (Electric Multiple Unit) was officially completed on the morning of December 22, 2007, at CSR Sifang Locomotive Co., Ltd. This milestone marks a significant leap in China’s railway technology, showcasing that the country has now reached the forefront of global high-speed rail development. With this achievement, China became the fourth nation—following Japan, France, and Germany—to independently design and manufacture a high-speed train capable of operating at 300 km/h.
Wang Yongping, a spokesperson for the Ministry of Railways, highlighted that the 300 km/h "Harmony" EMU is based on the technological platform of earlier 200 km/h trains, but with advanced improvements. He noted that one of the units achieved a localization rate of over 70%, demonstrating China's growing capability in indigenous innovation.
Compared to its 200 km/h predecessor, the 300 km/h EMU features increased power and more stringent requirements for aerodynamics, stability, and noise reduction. The technical complexity is significantly higher, reflecting the challenges involved in achieving such high speeds safely and efficiently.
Zhang Shuguang, deputy chief engineer at the Ministry of Railways, emphasized that CSR Sifang has not only mastered key technologies such as train assembly, car body construction, and bogie systems, but also built a world-class 300 km/h EMU platform. This accomplishment positions China as a major player in the global high-speed rail industry.
Zhao Xiaogang, General Manager of China South Locomotive Group Corporation, pointed out that within just four years, China had gone from 160 km/h to 300 km/h, establishing itself among the top global manufacturers in high-speed train design and production.
The new 300 km/h EMU features a streamlined, aerodynamic design that resembles the earlier 200 km/h model. It consists of eight carriages, all of which are seated, with the seventh carriage designated as a first-class compartment. Notably, the dining car in the fifth carriage includes two additional small bars, while the first-class cabin features dual-sided LCD screens for enhanced passenger comfort.
Ma Yunshuang, deputy director of the Technical Center at CSR Sifang, explained that the train uses a large-section hollow aluminum alloy body, with some parts as thin as 1.5 mm. Each car weighs approximately 7 tons, making it the lightest EMU of its kind globally, offering improved energy efficiency and environmental performance.
Additionally, the new EMU is equipped with a "shop shock absorber" system between cars to minimize longitudinal shocks and improve ride stability. It also includes a semi-active suspension system and an emergency ventilation system, further enhancing comfort and safety at high speeds.
According to reports, after the successful completion of the first 300 km/h "Harmony" EMU, CSR Sifang will begin mass production. The first batch of 10 units is expected to be delivered by March 2008. Wang Yongping confirmed that following extensive testing, the EMUs will officially start operating on the Beijing-Tianjin intercity railway on August 1, 2008, marking a new era for high-speed rail in China.
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