China has introduced a new high-speed train, the CR450, developed by CRRC Qingdao Sifang alongside the China Academy of Railway Sciences and China State Railway Group. The train is the next model in the high-speed network and has undergone extensive testing ahead of wider rollout.
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CR450 brings quicker long-distance travel
The CR450 is intended to shorten journey times on mainline routes while providing comfortable travel conditions. The use of aluminium and carbon fibre makes the new CR450 highly energy efficient and almost 10 per cent lighter than the previous models, while improving its acceleration. Noise and cabin vibration are optimised, and interior spacing was adjusted according to the passengers’ requirements. The improvements are aimed at making long-distance rail a stronger travel option compared with flying, particularly for city-to-city trips within a few hundred kilometres.
Performance during testing
During recent trials, the CR450 recorded speeds above 450 km/h, though it is expected to enter service at around 400 km/h. The train accelerates from standstill to 350 km/h in about 4 minutes and 40 seconds, showing strong traction and drive control.
Further engineering adjustments in the new train
The train’s body has been significantly lightened compared with existing CR400 models, thanks to the use of advanced materials. Leveraging permanent-magnet traction motors, CR450 is highly energy efficient and places less strain on the mechanical system. It delivers the highest level of operating speed without consuming much electricity.
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Safety and braking distance
Despite the increased speed, braking performance has been kept consistent. Tests indicate that braking distance at 400 km/h remains within a similar range to current 350 km/h trains, maintaining established safety parameters. It guarantees that the speed profile of the trains gets upgraded without hurting the existing safety standards.
As per the plans, the new CR450 will soon be introduced in the national high-speed network. However, the commercial operations will use speeds below the maximum achieved in testing. Further adjustments will be planned again based on route conditions and infrastructure assessments.
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