Currently, more than 72% of Brazilian ore production is transported by rail. In 2018, more than 275 million RTK (Tons per Kilometer Useful) were transported through the 26 thousand kilometers of the national railway network. Production on this scale cannot give up speed and precision. Daily, the MASSA In Motion Rail Scale carry out over 48,000 weighings in motion for mining companies, controlling the loading and identifying overload, under-utilization and load distribution of the wagons.