Strip-casting machine for producing a metal strip

A strip-casting machine for producing a metal strip comprising two casting rolls mounted next to one another to form a casting gap, and lateral sealing elements, wherein each lateral sealing element comprises a sealing plate configured to be pressed against end surfaces of the casting rolls, wherein each sealing plate is mounted in a floating manner with freedom of movement in three dimensions, further comprising a carrier element for each lateral sealing element, the carrier element being comprised of the sealing plate, a support frame holding the sealing plate, a pressing means acting on the support frame, and a floating support of the pressing means on the carrier element, wherein the pressing means comprises at least one independently controlled cylinder, wherein a piston of the at least one cylinder is configured to exert a controllable pressure on the sealing plate, wherein the support frame is supported by articulated connections on a butt plate, the butt plate being held in a floating manner by a ball joint on the carrier element, further comprising an elastic connection between the support frame and the butt plate for permanently pressing the support frame against the piston.