The paper presents a study carried out on a production/ machining line for Hub parts: a mechanical component where "propellers" or "blades" are connected to wind turbine or aero generator equipment that uses energy from the kinetic energy of the wind, as well as the productivity level of these parts. The study was carried out in a machining company, i.e. in the field, in the form of a case study where, by making a simple management decision, it was...