The advantages of the system are the following: - It controls the mixing process in a continuous and automatically; - The speed of the augers is adjusted depending on the ingredients loaded; - It improves the homogeneity of the mix, without using expertise labor; - The bale retainers work automatically; - Fast and complete unloading, using the unloading mode; - The system adapts to the tractor’s horsepower; - The speed of the augers allows to cut the fiber rapidly; - Allows to work low volume loads; - It optimizes the time of use of the mixer; - It is posible to program any rotational speed of the augers, from 0 to 55 rpm: - It allows to start the tractor progressively, with the mixer is full loaded; - It is posible to program a máximum power, in order to use the mixer with any tractor.