Rock wool is obtained by melting and transforming basalt rock. A complete rock wool system consists in a machine assembly, which carries out the transformation process. The first stage of the process consists in the storage and melting of the rock to be transformed into wool. The machines that make up this part of the line generally include: raw material storage, mixing and feeding system; a melting system and fibre forming. The latter transforms the melted material into fibre thanks to a centrifuge.