A meat processing unit for the production of an extruded meat product lacking a wrapping film and a gelled coating, which comprises: • an extruder apparatus for a minced meat product including a distribution chamber provided with an inlet opening, connected to a impeller pump for the minced meat product, and multiple outlet openings of identical section, each one in communication with an extruder head of an assembly of extruder heads through a distribution duct for the extrusion of the minced meat product in the shape of elongated strings of extruded meat product; • a conveyor surface facing said extruder heads to receive the extruded meat product; wherein • the outlet openings are arranged equidistant to the inlet opening and in radial symmetry around a geometric axis defined by the geometric centre of the inlet opening, in an annular arrangement; • the distribution chamber also includes at least one first bottom wall opposite said inlet opening centred relative to the geometric axis and a perimeter wall surrounding said inlet opening and said bottom wall and having radial symmetry around the geometric axis in correspondence with the radial symmetry of the outlet openings, all outlet openings being equidistant to the first perimeter wall; • all of said distribution ducts have the same length between each outlet opening and its corresponding extruder head, and each extruder head includes a cutting device; characterized in that • the conveyor surface goes through an air treatment unit configured to apply an air current with controlled temperature, humidity and speed against the raw extruded product for obtaining a hardened dehydrated outer crust that provides cohesion and allows for the handling of the extruded meat product; each extruder head consists of a cylindrical duct with a side opening, connected to one of the distribution ducts, with an extruding opening facing the conveyor surface for the ejection of the extruded meat product, wherein the cutting device includes a plunger movable within the cylindrical duct from an extruding position, in which the plunger does not interfere with the side opening, to a cutting position, in which the plunger completely blocks the side opening and in which the plunger reaches or goes beyond the extruding opening of the cylindrical duct to eject all of the meat content from the interior of the cylindrical duct. • an extruder apparatus for a minced meat product including a distribution chamber provided with an inlet opening, connected to a impeller pump for the minced meat product, and multiple outlet openings of identical section, each one in communication with an extruder head of an assembly of extruder heads through a distribution duct for the extrusion of the minced meat product in the shape of elongated strings of extruded meat product; • a conveyor surface facing said extruder heads to receive the extruded meat product; wherein • the outlet openings are arranged equidistant to the inlet opening and in radial symmetry around a geometric axis defined by the geometric centre of the inlet opening, in an annular arrangement; • the distribution chamber also includes at least one first bottom wall opposite said inlet opening centred relative to the geometric axis and a perimeter wall surrounding said inlet opening and said bottom wall and having radial symmetry around the geometric axis in correspondence with the radial symmetry of the outlet openings, all outlet openings being equidistant to the first perimeter wall; • all of said distribution ducts have the same length between each outlet opening and its corresponding extruder head, and each extruder head includes a cutting device; characterized in that • the conveyor surface goes through an air treatment unit configured to apply an air current with controlled temperature, humidity and speed against the raw extruded product for obtaining a hardened dehydrated outer crust that provides cohesion and allows for the handling of the extruded meat product;