<p>A continuous casting machine includes a plurality of mould blocks (1) associated with respective side dam blocks (13) and connected together to form two endless tracks. The two tracks have respective runs which cooperate to define a mould cavity (3) bounded by the casting surface of the mould blocks (1) in the two said runs and the inner side surface of the side dam blocks (13) associated with the mould blocks (1) in the two said runs. Each side dam block (13) is movable with respect to the associated mould block (1) and is urged into contact with the casting surface of a mould block in the other track by springs (17).</p>
