According to different positions, the roller table device of continuous casting machine can be divided into pre-cutting roller table, post-cutting roller table, conveying roller table and billet discharging roller table. The main function of the roller table is to transport the billet.

The roller table before cutting refers to a section of roller table before the cutting machine after the tension leveler. During the casting process, the casting billet is pulled out from the pulling machine to the cutting machine, and is conveyed by the tension straightening machine. The roller table before cutting mainly serves to support the casting billet. At the end of pouring, the tailstock leaves the tension straightened and loses its ability to move. At this time, the roller table before cutting plays the role of transporting the tailstock.

After cutting, the roller table, conveying roller table and blank discharge roller table are mainly used for billet transportation.