The FGM500B dual-powered rail milling train is a new-generation intelligent, clean, and efficient railmaintenance equipment jointly developed by TsingInst Railway and the National Engineering Laboratoryfor Urban Rail Transit System Safety and Operation & Maintenance. Based on the actual needs ofGuangzhou Metro and in line with domestic metro universal standards, the product integrates TsingInstRailway's core technologies and advanced engineering concepts, aiming to provide a comprehensivesolution for rail smoothness and profile management that is highly efficient, precise, and low-carbon.

Rail is a critical load-bearing component in the wheel-rail system, prone to defects such as wave wear, flanging, and fish-cale pattern, which jeopardize railway safety and comfortable operation. Rail defects cause abnormal train vibrations and noise, affecting passenger travel experiences and disrupting the daily lives of nearby residents, leading to frequent complaints. Untreated defects can cause rapid deterioration in rail condition, worsening the wheel-rail relationship and compromising train safety.

From September 18 to 20, at the 2025 China International Urban Rail Transit Exhibition and CAMET Forum held in Qingdao, TsingInst Railway (Luoyang) Rail Transit Technology Co., Ltd. (TRT) presented a remarkable lineup of cutting-edge technologies and innovative products, delivering an outstanding showcase that positioned the company as one of the industry’s “technology benchmarks.”