Rail brake damper comprising • a cylinder-piston arrangement having • a cylinder, • a piston that is guided in the cylinder in an axially movable manner and divides the inner chamber of the cylinder into two working chambers (144, 146), • a piston rod connected to the piston and guided out of the cylinder at one end thereof in a sealed manner, • an ejector arrangement (118/120), which acts on the piston in such a manner as to slide the piston rod out of the cylinder, and • a damping device (126/136) associated with the piston, wherein the damping device (126/136) comprises at least one damping valve having at least one piston channel which passes through the piston, thereby connecting the two working chambers (144, 146), and at least one closure element associated with the piston channel, the at least one closure element being spring-biased in such a manner as to close the at least one piston channel, and the hydraulic pressure active in the working chamber remote from the piston rod acting on said element in such a manner as to open the damping valve, the at least one closure element preferably being made of metal, for example steel or copper, or of plastics material, for example polytetrafluoroethylene, characterised in that the at least one closure element is formed as a ball, that a plurality of piston channels connecting the working chambers (144, 146) pass through the piston and each is associated with a separate closure element, wherein the ball-like closure elements being associated with a common support plate above the piston, which is spring-biased against the ball-like closure elements by means of at least one valve-biasing spring formed separate as a spring assembly in such a manner as to close the piston channel, and that by the closure elements there is always a predetermined minimum distance between the piston and the support plate. • a cylinder-piston arrangement having • a cylinder, • a piston that is guided in the cylinder in an axially movable manner and divides the inner chamber of the cylinder into two working chambers (144, 146), • a piston rod connected to the piston and guided out of the cylinder at one end thereof in a sealed manner, • an ejector arrangement (118/120), which acts on the piston in such a manner as to slide the piston rod out of the cylinder, and • a damping device (126/136) associated with the piston, • a cylinder, • a piston that is guided in the cylinder in an axially movable manner and divides the inner chamber of the cylinder into two working chambers (144, 146), • a piston rod connected to the piston and guided out of the cylinder at one end thereof in a sealed manner, • an ejector arrangement (118/120), which acts on the piston in such a manner as to slide the piston rod out of the cylinder, and • a damping device (126/136) associated with the piston, wherein the damping device (126/136) comprises at least one damping valve having at least one piston channel which passes through the piston, thereby connecting the two working chambers (144, 146), and at least one closure element associated with the piston channel, the at least one closure element being spring-biased in such a manner as to close the at least one piston channel, and the hydraulic pressure active in the working chamber remote from the piston rod acting on said element in such a manner as to open the damping valve, the at least one closure element preferably being made of metal, for example steel or copper, or of plastics material, for example polytetrafluoroethylene, the at least one closure element being spring-biased in such a manner as to close the at least one piston channel, and the hydraulic pressure active in the working chamber remote from the piston rod acting on said element in such a manner as to open the damping valve, the at least one closure element preferably being made of metal, for example steel or copper, or of plastics material, for example polytetrafluoroethylene, characterised in that the at least one closure element is formed as a ball, that a plurality of piston channels connecting the working chambers (144, 146) pass through the piston and each is associated with a separate closure element, wherein the ball-like closure elements being associated with a common support plate above the piston, which is spring-biased against the ball-like closure elements by means of at least one valve-biasing spring formed separate as a spring assembly in such a manner as to close the piston channel, and that by the closure elements there is always a predetermined minimum distance between the piston and the support plate.