The recent Danieli experience in the thin slab caster proved that it is possible to reach a production of 1.8 Mt/y with a single strand caster utilising a slab 80×1300 mm. With a more favourable range of thickness and width as per the majority of the operating plants a production of 2.5-3.5 Mt/y it is possible with a single strand. This will be a revolution in the thin slab caster plant layout eliminating definitively the need of installing a second strand.