Additive manufacturing equipment for being able to produce sintered parts, said manufacturing equipment comprising: - a stratification device for superimposing a plurality of layers of particles of a powdery material; - a printing device for printing a binder on each of the layers of particles of said powdery material so as to bind together particles intended to form said sintered parts, while the non-bound particles accumulate around the bound particles while forming a single stratified block; and - a device for extracting said non-bound particles of said single stratified block to leave clear said parts of bound particles; characterised in that said extraction device comprises a bell having a plurality of orifices (34, 36, 38, 40), said bell being adapted for sealingly fitting on top of said single stratified block to be able to inject a gas through some of the orifices (34, 36) of said plurality of orifices so as to detach said non-bound particles from said single stratified block, while said gas entrains the detached particles through the rest of said orifices (38, 40), and in that the orifices (34, 36) of said some of the orifices are uniformly distributed in said bell, while the orifices (38, 40) of said rest of said orifices are uniformly distributed between the orifices (34, 36) of said some of the orifices. - a stratification device for superimposing a plurality of layers of particles of a powdery material; - a printing device for printing a binder on each of the layers of particles of said powdery material so as to bind together particles intended to form said sintered parts, while the non-bound particles accumulate around the bound particles while forming a single stratified block; and - a device for extracting said non-bound particles of said single stratified block to leave clear said parts of bound particles; characterised in that said extraction device comprises a bell having a plurality of orifices (34, 36, 38, 40), said bell being adapted for sealingly fitting on top of said single stratified block to be able to inject a gas through some of the orifices (34, 36) of said plurality of orifices so as to detach said non-bound particles from said single stratified block, while said gas entrains the detached particles through the rest of said orifices (38, 40), and in that the orifices (34, 36) of said some of the orifices are uniformly distributed in said bell, while the orifices (38, 40) of said rest of said orifices are uniformly distributed between the orifices (34, 36) of said some of the orifices. characterised in that said extraction device comprises a bell having a plurality of orifices (34, 36, 38, 40), said bell being adapted for sealingly fitting on top of said single stratified block to be able to inject a gas through some of the orifices (34, 36) of said plurality of orifices so as to detach said non-bound particles from said single stratified block, while said gas entrains the detached particles through the rest of said orifices (38, 40), and in that the orifices (34, 36) of said some of the orifices are uniformly distributed in said bell, while the orifices (38, 40) of said rest of said orifices are uniformly distributed between the orifices (34, 36) of said some of the orifices.