The world’s first carbon fiber metro train, dubbed the “CETROVO 1.0 Carbon Star Express,” has officially begun passenger operations on Qingdao’s Metro Line 1, East China’s Shandong Province, as announced by China Central Television (CCTV) on Friday.
Developed by CRRC Qingdao Sifang Co, the revolutionary metro train represents a breakthrough in lightweight rail technology. Its key structural components, including the car body and bogie frame, are crafted from advanced carbon fiber composite materials instead of traditional steel and aluminum alloys. This innovation reduces the train’s weight by approximately 11 percent, lowers energy consumption by 7 percent, and cuts annual carbon dioxide emissions by 130 tons per train, according to CRRC Qingdao Sifang.
The carbon fiber material provides multiple advantages, including higher strength, better environmental adaptability, and lower operating and maintenance costs. Stronger than steel yet weighing less than a quarter of it, carbon fiber enhances impact resistance, extends structural lifespan, and improves vibration reduction and isolation, delivering a smoother, quieter, and more comfortable ride for passengers.
The development is also a significant step in supporting China’s “dual carbon” goals, as the adoption of carbon fiber technology advances the green and low-carbon transformation of urban rail transit.
Qingdao’s Metro Line 1, spanning 60 kilometers with 41 stations, serves as a critical north-south transport route in the city. The CETROVO 1.0 Carbon Star Express is expected to enhance operational efficiency while setting a benchmark for sustainable urban rail systems worldwide.
