Abstract: The invention relates to a device for screening off lines of electric flux in an installation for electrolytic processing of substantially plate-shaped material in the form of one or more workpieces which is held underneath a goods carrier and immersed in a bath when the goods carrier is lowered. A screen is provided which is adjustable in the vertical direction by a hold-down mechanism which is coupled with the movement of the goods carrier. The hold-down mechanism includes rods which project downward from the goods carrier to bear on two end regions of the screen. The lower ends of the rods and the end regions of the screen are constructed in such a way that the screen cannot be displaced relative to the rods at least in its longitudinal direction. The distance between the rods is greater than the width of the material to be processed which is located between the rods during processing.