The invention relates to a device (10) for electrochemically removing a surface of a component (2), in particular a blade of an integrally bladed rotor, comprising at least one electrode (12), which has an outer contour that corresponds to a surface of the component to be produced, and a hydraulic pressure device (14), which has a pressure piston (16) coupled to the electrode (12) and a hydraulic chamber (18) in operative connection with the pressure piston (16) for receiving the hydraulic medium, wherein the pressure piston can be loaded with an actuating force and moved relative to the hydraulic pressure device (14) by means of the hydraulic medium, wherein the hydraulic chamber (18) is fluidically encapsulated relative to the pressure piston (16). The invention further relates to a method for electrochemically removing a surface of a component (2).