The invention relates to a safety device (45), in particular a beam-emitting and beam-receiving device, for a manufacturing machine (1), e.g. an edging press, with at least one retaining mechanism (51) for the safety device (45) designed as an adjusting mechanism (52) on a press beam (15,16) fitted with bending tools (36, 37) in a tool mounting device (35). By means of the retaining mechanism (51) designed as an adjusting mechanism (52) the beam emitter (47) and/or beam receiver (48) can be adjusted in a direction perpendicular to the standing surface (9) between at least one working position (55) and a park position (54), whereby in the park position (54) automatic locking takes place.