China finalizes the CR450, its fastest train, after record-breaking tests.

Last update: 23/10/2025

  • The CR450 reaches 453 km/h in testing and aims for 400 km/h in service.
  • Validation of 600.000 km before transporting passengers.
  • Aerodynamic improvements: longer nose, 20 cm lower roof and 50 t less.
  • Tests on the Shanghai–Chongqing–Chengdu corridor, with future comprehensive Chengdu–Chongqing tests.
CR450

In China, the entry into service of the CR450, high-speed train which has achieved outstanding figures during its validation phase and which aims to become the fastest commercial rail service on the planetIn its past test sessions, the prototype has recorded peaks of up to 453 km / h on the high-speed network.

According to information published by Science and Technology Daily and official channels of the country, the project is in the final stretch of testing in the axis Shanghai–Chongqing–Chengdu, with an operational objective of 400 km/h that exceeds the current global standard of 350 km/h.

Testing and performance

China's fastest train

The tests have shown an unusual acceleration on the railway: the CR450 goes from 0 to 350 km/h in 4 minutes and 40 seconds, a record that improves on its predecessor and confirms the leap in power and energy management. In controlled scenarios, two units even crossed paths with a combined speed of 896 km/h, without incident.

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Before transporting passengers, the manufacturer and operators consider a validation campaign. 600.000 kilometers, which includes tests on braking, stability, tunnel performance, continuous operation, and various climatic and loading conditions.

Design and technical improvements

train CR450

Compared to the previous series CR400 Fuxing, the new train It incorporates a revised aerodynamic and structural package that reduces drag and fuel consumption.. With a lighter train and a sharper profile, calculations and measurements place the drag reduction by 22%Which makes it easier to maintain high cruises with lower energy expenditure.

  • La nose lengthens from 12,5 to 15 meters to smooth the airflow.
  • The roof is 20 centimeters shorter, optimizing passage through tunnels and crossing with other trains.
  • The set reduces its mass by 50 tonnes , lightening the axle load and improving efficiency.
  • added lower fairings, carbon composite materials and magnesium alloys to improve the envelope.
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In traction, the CR450 mounts permanent magnet motors with an installed capacity of approximately 11.000 kW, and the interior introduces acoustic comfort measures that, according to tests, limit noise to 68 dB at 400 km/h.

Security and validation schedule

Chinese train record speed

Authorities and media such as CCTV + (collected by TV BRICS) they emphasize that there will be no entry into service until the planned testing phase is completed, with verification of components, Continuous operation at high speed and emergency protocols. This is a common procedure for high-speed equipment that guarantees reliability and security in operation.

High-speed network and future routes

In addition to the tests in the corridor Shanghai–Chongqing–Chengdu, a comprehensive validation section is planned on the line Chengdu–ChongqingIf the program is completed successfully, the CR450 could become the fastest commercial train available on a regular basis, with a service speed set at 400 km/h.

Impact and implications

The launch of this train It will reduce travel times between large urban centers and strengthen national connectivity., consolidating the China's leadership in high-speed technology compared to proposals from Japan, France or Germany. The CR450's performance leap also sets a new bar for the railway industry.

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With the records of 453 km/h already on the table, the aerodynamic improvements and the extensive test plan, the CR450 is emerging as the next great reference for high speed: more efficient, quieter and with 400 km/h as expected operating speed in regular service.