System tailored to the customer’s requests. This plant packs heavy piles, which are weighed before being bagged. With the 2-channel scale, each finished bag has a weight preset by the operator. The two channels of the scale are of different sizes: the larger channel is set up for roughing and the smaller one for finishing (here the pieces are dropped into the bag one by one when the weight is very close to the preset range). in such a way as to respect the desired envelope weight as much as possible.