A mill for plants comprising an arrangement of rollers, with a central bearing having a series of teeth and roller arrows, also a support structure for the arrangement of rollers, bearing blocks that hold the roller's arrow, said mill characterized in that: the rollers have a pattern of transversal cuts distanced between each other and over the series of teeth that extends in a tilted manner from each border of the central bearing and converges at the center of the rollers in the shape of an angled line making a wall with an acute angle at the superior border of the teeth which creates a tip and in the teeth's crests there is a coarse finish known as knurling; the support structure is made up of a pair of rollers' bases, an inferior frame and superior beams, wherein each of the rollers' bases has an arrangement of sliders where the bearing blocks are housed, wherein at each end of the rollers are said roller's bases located in a parallel manner and symmetric, wherein said sliders align in a coaxial manner and said roller's bases are bound in the inferior border with said inferior frame and in the superior border by said superior beams in a suitable manner to provide the support and rigidity necessary to the support structure and of suitable features to absorb the efforts to which the mill is subjected, and wherein said rollers' bases allow the placing of a pair of bottom rollers in a first inferior plane and in between these inferior rollers there is a third top roller in a superior plane, resulting in a triangular arrangement of the rollers so that there is an interference of dimensions between the perimeters of the teeth of the bottom rollers housed in the reductions of the top roller; the bearing blocks consist of a bearing block carcass of suitable dimension and material with a reduction of bearing block that works as guide to slide at the borders of the sliders of the rollers' bases, a dust cover in each end of the bearing box and an auto-aligning bearing; also a first tensioning arm in the bearing block's carcass and a second tensioning arm in the gear motor's carcass to anchor the gear motor in the support structure, where each tensioning arm (36, 46) has a flange in one of its ends to bind respectively to the bearing block's carcass and to the gear motor's carcass, also ball and socked joints (37, 47) in the opposite ends, where a first ball and socket joint allows an alternative movement and a second ball and socket joint allows a spherical movement; an oscillating pin that extends between said ball and socket joints (37, 47) with suitable elements to allow a movement of one degree of spherical freedom at the second ball and socket joint and at its opposite end, elements which allow a movement of one degree of alternative lineal freedom over its longitudinal axis; a gear motor that is coupled to each roller and is anchored at the support structure. the rollers have a pattern of transversal cuts distanced between each other and over the series of teeth that extends in a tilted manner from each border of the central bearing and converges at the center of the rollers in the shape of an angled line making a wall with an acute angle at the superior border of the teeth which creates a tip and in the teeth's crests there is a coarse finish known as knurling; the support structure is made up of a pair of rollers' bases, an inferior frame and superior beams, wherein each of the rollers' bases has an arrangement of sliders where the bearing blocks are housed, wherein at each end of the rollers are said roller's bases located in a parallel manner and symmetric, wherein said sliders align in a coaxial manner and said roller's bases are bound in the inferior border with said inferior frame and in the superior border by said superior beams in a suitable manner to provide the support and rigidity necessary to the support structure and of suitable features to absorb the efforts to which the mill is subjected, and wherein said rollers' bases allow the placing of a pair of bottom rollers in a first inferior plane and in between these inferior rollers there is a third top roller in a superior plane, resulting in a triangular arrangement of the rollers so that there is an interference of dimensions between the perimeters of the teeth of the bottom rollers housed in the reductions of the top roller; the bearing blocks consist of a bearing block carcass of suitable dimension and material with a reduction of bearing block that works as guide to slide at the borders of the sliders of the rollers' bases, a dust cover in each end of the bearing box and an auto-aligning bearing; also a first tensioning arm in the bearing block's carcass and a second tensioning arm in the gear motor's carcass to anchor the gear motor in the support structure, where each tensioning arm (36, 46) has a flange in one of its ends to bind respectively to the bearing block's carcass and to the gear motor's carcass, also ball and socked joints (37, 47) in the opposite ends, where a first ball and socket joint allows an alternative movement and a second ball and socket joint allows a spherical movement; an oscillating pin that extends between said ball and socket joints (37, 47) with suitable elements to allow a movement of one degree of spherical freedom at the second ball and socket joint and at its opposite end, elements which allow a movement of one degree of alternative lineal freedom over its longitudinal axis; a gear motor that is coupled to each roller and is anchored at the support structure.