The invention relates to a device (1) for decelerating a moving mass. Said device comprises a movably guided coupling member (13) for pressing a brake lining (14) against a braking surface (15) and a brake actuator (8), filled with hydraulic liquid and connected to the coupling member (13), for generating a pressure force that can be passed into the brake lining (14) via the coupling member (13). The brake lining (14) is connected to a pressure transducer (18) that can be fastened on a frame of the mass to be decelerated via connecting means (16). The pressure transducer has a hydraulic liquid-filled supporting cylinder (19) and a supporting piston (17) interacting therewith, said supporting cylinder (19) communicating with the brake cylinder (9) via hydraulic lines. The aim of the invention is to allow an improved adjustment of the deceleration. For this purpose, control means (42) adjust the brake force depending on a predetermined theoretical value.