A machine for processing a meat mass that includes a rotary drum (10) for containing a meat mass with an open front end (14) with a lid (40) for loading and unloading, a closed rear end (13), inner blades for driving and turning over the meat mass during rotation, a support chassis (20) supporting the rotary drum such that it can rotate about a rotational shaft, a support base (30) to which the support chassis is articulated by a shaft perpendicular to the rotational shaft and close to the front end (14) of the rotary drum, adjustable inclination mechanism for moving the rear end of the support chassis height-wise in order to change the inclination of the rotary drum, and a vibration damper associated with a rear part of the support chassis adjacent to the rear end (13) of the rotary drum.