Absolutely necessary in the process of pre-selection, it allows a delicate and optimum bins filling. It is governed by a microprocessor controlling all operation automatically. The strap belt conveys the products delicately, and the particular rotating disk distributes them uniformly without damaging them. The alternate operation of the head allows a single operator to take care of several bins simultaneously. The fillers are ideal to be combined with the other machines of the pre-selection line, such as sizing machines, sorting benches, etc.