such as various plastic materials, thermoplastics as well as duroplastics, flexible synthetic and natural rubbers, caoutchouc, waxes, stearates, soaps, sticky materials, agro products and those with a high fat content, materials with a softening or melting point just slightly above the ambient temperature, food products, such as extruded materials, cereals, starch- and protein-derivates, germs fibres, bran, defatted cacao beans, herbs, spices and others for the pharmaceutic and cosmetic industries.