The crushers for frutal and meadow of mobile hammers of the series Pasture Mowers Medium (PMM) are machines particularly robust. Apt for the trituración of grass, bushes and escamondadura, if they employ for the trituración of grass, can join up a rotor of hammers in ‘And' in place of the standard hammers and besides fix the height of cut wished by means of the regulation of the solid roller of support autolimpiable.