roller mill HE series. horizontal for biomass grain. roller mill. HE series. Output: 0 t/h 60 t/h. Machine length: 1,446, 2,136, 2,676 mm. Machine width: 1,366 mm. The new Roller mills series HE are developed to crush or grind various materials, such as grain, oilseeds, biomass and others with an optimum result and low energy requirements.