For the recycling of copper scrap, SMS group has developed a new generation of fire refining furnaces, thus opening up the possibility of producing anode copper and FRHC copper from copper scrap. Depending on the desired product quality, different materials may be used, such as copper scrap of grades 1 to 3 (e.g. birch/cliff). The fire refining furnaces used for the anode production line are either tilting refining furnaces (TRF) or elliptic tilting  refining furnaces (ETRF), optionally expanded with a top blown rotary converter (TBRC).

Tilting refining furnaces are based on an improved scrap charging system and, optionally, semiautomatic skimming that keeps the operators at a safe distance from the molten metal. They are designed for the melting, refining, and casting of copper scrap in one flexible unit. The copper scrap is charged in the form of bales or loose scrap via the charging doors or injected as fines. Further, it is possible to charge liquid material via launders from the recycling of lower-grade material in a BlueSmelter or TBRC (top blown rotary converter). The units can also be offered “H₂-ready”, enabling CO₂-reduced copper production.

The tilting furnace is also used for FRHC (Fire-refined High-conductivity) copper production to partially replace cathodes via a fire-refined semi product. By combining the tilting refining furnace with a casting wheel, high-quality anodes are produced.