Robotic slagging refers to the use of automated robotic systems to remove slag from molten metal in furnaces, typically in foundries and metal processing plants. Slagging is the process of removing the byproduct (slag) that forms on top of molten metal during melting operations. Slag consists of impurities, oxides, and other unwanted materials, which need to be separated to ensure the purity of the metal being cast.

A cupola furnace is a type of melting furnace used primarily in foundries for melting cast iron and other metals. It is a vertical cylindrical structure that operates using layers of metal, coke (as fuel), and limestone (as a flux) to produce molten metal for casting.