The “Endeavor” tunnel boring machine (TBM) designed and produced by Northern Heavy Industries (NHI) successfully completed its tunneling mission just before National Day in 2024, setting a new world record for a single machine tunneling distance of 26.521 kilometers. Through collaboration with the Institute of Metal Research, Chinese Academy of Sciences, NHI has overcome over a dozen key core technical challenges, solidifying its leading position in the global shield machine market.