Abstract: An apparatus is disclosed which guides material in strip form horizontally between vertically-disposed electrodes in an electrolytic coating, pickling or degreasing process. The electrodes are attached to two vertically-disposed insulated frames positioned on either side of the strip. At both ends of the frames, relative to the direction of movement, are pairs of rollers through which the strip passes before and after treatment. The frames are pressed together by means of two pairs of scissor arms which are secured to the frame at one end and at the other end are compressed by tensioning means. The apparatus is suspended by support arms, the bottom ends of which are pivotally connected to the pivot pins of the scissor arms with the top ends movably secured to the tank.