FIELD: metallurgy, particularly, continuous casting of molten metal. SUBSTANCE: lengthened backing-up rolls 8 have magnetized ribs 26 coming in contact of rolling with back surface 34 of rotating flexible then, calibrated, heat-conducting, magnetically soft ferromagnetic belt 40 of casting conveyer. Magnetized ribs guide and stabilize the belt with resistance to heat deformation when it moves along hollow C of mold being heated with its front surfaces by molten metal and simultaneously cooled on its back surface by flowing cooling substance. Each roll includes nonmagnetic shaft 10 rotating round its axis 22. Magnetically ferromagnetic circular ribs are spaced along shaft. Sleeve-shaped embracing permanent magnets 30 magnetized parallel to axis 22 are installed on shaft between successive ribs. Ribs and sleeve-shaped magnets are alternating along shaft. EFFECT: improved quality of produced strip due to reduction of its deformation. 20 cl, 5 dwg, 2 tbl
