QINGDAO -- China's new high-speed train model CR450 is currently undergoing extensive tests and evaluations on its prototypes, paving the way for the commercial operation of this new bullet train.

Made in Qingdao, Known as the world's fastest high-speed train, the CR450 is capable of running at 450 kilometers per hour in tests and 400 kilometers per hour in operation, according to China State Railway Group Co., Ltd (China Railway).

Prototypes of the latest model in the Fuxing bullet train series were unveiled in Beijing on Dec 29, 2024.

Engineers at the test center have been carefully overseeing the "weight control" of the CR450 prototypes. To achieve this, they have installed sensors on the tracks, which transmit real-time weight data for each of the eight wheels on both sides of every carriage to a computer system. This allows for precise monitoring and adjustments to ensure optimal performance.

The train body adopts new materials such as carbon fiber composites and magnesium alloys, alongside topology optimization technology. The fully covered structural design, for the first time, completely encloses the entire bogie area, which ensures the smoothness of the entire vehicle and minimizes the drag.

The CR450 also features the permanent magnet motor, replacing the asynchronous traction motor. To address extreme conditions, the development team designed over 40 scenarios and conducted hundreds of simulation tests around just one motor.

"As our Fuxing model progresses, so do our competitors. We have been catching up and are fully aware of the difficulties involved. To maintain our lead, we must continuously explore and update technologies, and drive industry development through innovation," said Nie Ying, a senior designer at CRRC Qingdao Sifang Co., Ltd.

The tests also include extensive ground testings.

Although spreed increase and lightweight design posed significant challenges to noise control, the team has successfully reduced noise.
After seven years of technical breakthroughs and independent innovation, the CR450 high-speed train is expected to undergo full vehicle testing and trial evaluations in 2025.