A washing machine for washing objects for stalling laboratory animals, in particular, parts and/or accessories of stalling cages, comprising at least a washing device comprising: - at least one rod extending along a main axis and connectable to a source of pressurized washing fluid; - fluid conveying means connected to said source of pressurized washing fluid and associated with said rod, - a plurality of nozzles adapted to emit respective jets of said washing fluid, said plurality of nozzles being connected to said fluid conveying means and supported by said rod; - translation means of said at least one rod, which are configured to translate said at least one rod along a translation stroke (z) extending along a translation axis, which is transversal, preferably perpendicular, to the main axis, and - rotation means of said at least one rod, which are configured to alternately rotate said at least one rod about a rotation axis parallel to the main axis inside a rotation angle (γ); wherein said translation means and said rotation means are selectively operable according to a predetermined logic for moving said at least one rod inside an operating plane defined by said main axis and said translation axis, so that, during a use configuration of the washing device in which the jets of washing fluid are emitted from the nozzles and objects are operatively facing said operating plane with respective surfaces to be washed facing said at least one rod, the jets of washing fluid can be directly emitted against the surfaces to be washed for washing them thoroughly; said washing machine comprising also: - a sealed wash chamber having at least one access door and at least one washing wall onto which said at least one washing device is installed, and - at least one support device configured to receive and support a plurality of objects so as to arrange the respective surfaces to be washed of the objects, during the use configuration, facing the operating plane. - at least one rod extending along a main axis and connectable to a source of pressurized washing fluid; - fluid conveying means connected to said source of pressurized washing fluid and associated with said rod, - a plurality of nozzles adapted to emit respective jets of said washing fluid, said plurality of nozzles being connected to said fluid conveying means and supported by said rod; - translation means of said at least one rod, which are configured to translate said at least one rod along a translation stroke (z) extending along a translation axis, which is transversal, preferably perpendicular, to the main axis, and - rotation means of said at least one rod, which are configured to alternately rotate said at least one rod about a rotation axis parallel to the main axis inside a rotation angle (γ); wherein said translation means and said rotation means are selectively operable according to a predetermined logic for moving said at least one rod inside an operating plane defined by said main axis and said translation axis, so that, during a use configuration of the washing device in which the jets of washing fluid are emitted from the nozzles and objects are operatively facing said operating plane with respective surfaces to be washed facing said at least one rod, the jets of washing fluid can be directly emitted against the surfaces to be washed for washing them thoroughly; said washing machine comprising also: - a sealed wash chamber having at least one access door and at least one washing wall onto which said at least one washing device is installed, and - at least one support device configured to receive and support a plurality of objects so as to arrange the respective surfaces to be washed of the objects, during the use configuration, facing the operating plane. - a sealed wash chamber having at least one access door and at least one washing wall onto which said at least one washing device is installed, and - at least one support device configured to receive and support a plurality of objects so as to arrange the respective surfaces to be washed of the objects, during the use configuration, facing the operating plane.