China has spent years perfecting machinery that not only symbolizes speed, but also industrial precision. Its latest exponent, the CR450, has shown the scope of that search: in its most recent tests, two trains reached a combined speed of 896 km/h at the intersectiona new record in the Chinese system. It is not an isolated gesture, but a step within the innovation program launched in 2021 to raise the bar for high speed with more reliability and performance.
The new registration was confirmed on October 21. During tests on the high-speed line connecting Shanghai, Chongqing and Chengdu, two CR450 trains crossed each other, reaching a relative speed of 896 km/h. In the same testing campaign, one of the prototypes once again reached 453 km/h per unit, equaling the record set in 2023. The tests, they explain, are part of the “evaluation operation” that is currently being carried out on the Wuhan–Yichang section, a prior step to a more demanding phase scheduled for 2026.
Speed is on the table, but the operation is not yet
At first glance, it might seem that two trains traveling at 453 km/h should add up to a crossing speed of 906 km/h. In practice, testing conditions prevent this. As China Railway Group explained, the exact moment when both units are on parallel tracks it only lasts a few secondsand getting them to maintain the same speed at that point is extremely complex. For safety reasons, technicians increase speed gradually, ensuring stability and synchronization before attempting new records.
The CR450 is not an isolated project, but one more piece of the railway plan that China launched in 2021 to raise commercial speed to 400 km/h. The challenge is not minor: maintaining that pace without increasing consumption or noise. Before entering service, the prototype must complete 600,000 kilometers of tests under real conditions, an essential requirement for its certification. This year, trials have extended from the Chongqing to Qianjiang sections to the Wuhan–Yichang line, where technical teams continue to fine-tune the train’s behavior in prolonged use scenarios.
As Sina points out, a good part of the CR450’s progress can be understood by looking inside its engineering. The train incorporates permanent magnet motors with a total power of 11,000 kW. The weight has also been reduced about 50 tons thanks to the use of carbon fiber and magnesium alloys, and the aerodynamic profile has been optimized with a longer nose, 15 meters. They claim that at 400 km/h, the noise level inside the car barely reaches 68 decibels.
Although the CR450 has already demonstrated its technical capabilities, its commercial deployment remains without a clear destination. Today there is no operational line in China prepared to travel at 400 km/h. The first that contemplates this possibility is the Chengdu–Chongqing Central Line, approved in 2021 with a base design of 350 km/h and adaptable sections for future tests at higher speeds. According to China Economic News, the plan is for the train to undergo a more demanding testing phase there next year, the closest so far to a real service scenario.
The development of the CR450 is divided between two of the main railway manufacturers in the country. The CR450AF version has been built by CRRC Qingdao Sifang, while the CR450BF is built by CRRC Changchun. Both They share an eight-car configuration —four engines and four trailers—. Official information indicates that they incorporate advanced communication and braking systems, as well as high stability bogies designed to maintain balance even in extreme speed tests.
The immediate future of the CR450 passes through the aforementioned line, where over the next year it will undergo tests closest to real operation. There is still no confirmed date for its entry into service, and those responsible for the project emphasize that the priority continues to be technical validation. For now, we have to wait to see if all the promises of the program materialize and if the new train manages to transfer its laboratory achievements to the operational field.
Images | China Railway Group
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