Monoblock Stoppers are critical flow-control components used in continuous casting tundishes to regulate and control the flow of molten steel from the tundish to the mould. Manufactured as a single-piece refractory unit, these stoppers are designed to provide precise flow regulation while maintaining structural integrity under demanding steelmaking conditions.
Operating in direct contact with molten steel, Monoblock Stoppers are exposed to severe thermal, chemical, and mechanical stresses throughout the casting process. To ensure reliable performance, they are manufactured using high-quality refractory materials such as alumina-carbon, zirconia-enhanced alumina, and other specialized compositions that offer excellent resistance to erosion, thermal shock, and clogging. Their robust construction helps maintain consistent steel flow, improve casting stability, and support high-quality steel production.