The steel market occupies more than 10% of all railway movements in Brazil with the transport of inputs and products. The railway is one of the links of integrated logistics (plus highway and port) necessary for this important sector of the Brazilian economy. In addition to the economic advantages of the railway modal, the steel industry uses the safety and stability of the tracks for the production and transportation of Torpedo Cars. The MASSA In Motion Rail Scale are instrumented tracks that perform the control of the weighing by axles of the wagon, and therefore weigh any type of wagon, regardless of its size.