Horizontal pusher type furnaces are generally used for preheating, in which steel billets cut on the cold side (ambient temperature) are fed to the coil section using a hydraulic pusher and are removed on the hot side using tongs.
The billets are heated to approx. 1000 °C depending on the speed at which they are pushed through and the power of the induction coils.
The induction furnaces are followed directly by a resistance-heated holding furnace, which ensures that the heat is evenly distributed throughout the billet.
At the end of the horizontal heating, the individual billets are removed from the holding furnace using extraction tongs and fed to a roller conveyor system, which takes them to the next process step.