Device for centrifugal spraying of a liquid product comprising: - a rotary electric motor movable in rotation about an axis of rotation (XX'), said rotary electric motor comprising a rear portion with a diameter D and an axis of symmetry (XX') and a front portion with a diameter d arranged in line with said rear portion and with the same axis of symmetry (XX'), with d being smaller than D, - a static chamber in the form of a sleeve arranged concentrically with said rotary electric motor with respect to said axis of rotation (XX') and partially surrounding the rear portion of said rotary electric motor, said static chamber having a rear face and a front face, said static chamber including a first means for routing the liquid to be sprayed formed longitudinally so as to enable said liquid to flow from the rear face of the static chamber as far as the front face of the static chamber, - a support designed so as to be mounted concentrically on the front portion of said electric motor and on which are fastened - an axisymmetric object such as a planar disc, able to be driven in rotation at high speed by said rotary electric motor, - a capsule nested concentrically on said front face of said static chamber, so that the upper face of said capsule is arranged just below said planar disc to avoid any contact with said planar disc, while being separated by a distance ε, said capsule having an internal lateral face surrounding said support, said capsule including a second means for routing the liquid to be sprayed formed longitudinally to enable said liquid to flow from said front face of the static chamber as far as the face of said planar disc located opposite the upper face of said capsule, said first and second routing means (7, 8), said capsule and said static chamber being arranged in said centrifugal spraying device so that said first and second routing means (7, 8) are in fluidic communication and forms a continuous network enabling routing of the liquid to be sprayed from the rear face of the static chamber as far as the face of said planar disc located opposite the upper face of said capsule, said spraying device being characterised in that it furthermore comprises blind orifices formed radially in said support and extending radially towards the axis (XX'), and in that said internal face of said capsule is in the form of a divergent nozzle the cross section of which perpendicularly to the axis (XX') has a diameter increasing as far as the upper face of the capsule. - a rotary electric motor movable in rotation about an axis of rotation (XX'), said rotary electric motor comprising a rear portion with a diameter D and an axis of symmetry (XX') and a front portion with a diameter d arranged in line with said rear portion and with the same axis of symmetry (XX'), with d being smaller than D, - a static chamber in the form of a sleeve arranged concentrically with said rotary electric motor with respect to said axis of rotation (XX') and partially surrounding the rear portion of said rotary electric motor, said static chamber having a rear face and a front face, said static chamber including a first means for routing the liquid to be sprayed formed longitudinally so as to enable said liquid to flow from the rear face of the static chamber as far as the front face of the static chamber, - a support designed so as to be mounted concentrically on the front portion of said electric motor and on which are fastened - an axisymmetric object such as a planar disc, able to be driven in rotation at high speed by said rotary electric motor, - a capsule nested concentrically on said front face of said static chamber, so that the upper face of said capsule is arranged just below said planar disc to avoid any contact with said planar disc, while being separated by a distance ε, said capsule having an internal lateral face surrounding said support, said capsule including a second means for routing the liquid to be sprayed formed longitudinally to enable said liquid to flow from said front face of the static chamber as far as the face of said planar disc located opposite the upper face of said capsule, said first and second routing means (7, 8), said capsule and said static chamber being arranged in said centrifugal spraying device so that said first and second routing means (7, 8) are in fluidic communication and forms a continuous network enabling routing of the liquid to be sprayed from the rear face of the static chamber as far as the face of said planar disc located opposite the upper face of said capsule, said spraying device being characterised in that it furthermore comprises blind orifices formed radially in said support and extending radially towards the axis (XX'), and in that said internal face of said capsule is in the form of a divergent nozzle the cross section of which perpendicularly to the axis (XX') has a diameter increasing as far as the upper face of the capsule.