Beading machines are used for binding straight bulges on straight sheets or on tubes made of sheet metal (beading). This machine has 2 rollers, one of which has the positive shape and the other the negative shape of the bulge. Between these rollers the sheet metal is placed, which is then pulled through by motor drive or manually. While the sheet is being pulled through the rollers, the upper roller gradually closes, which causes the forming (beading depth) to become stronger and stronger.