Convection billet heater for the heating of cast strands or billets before extruding
The modern heater, notably where particularly close temperature tolerances or extremely low energy costs must be achieved. Gentle heating of billets is performed exclusively by means of a high-velocity fluid flow directed onto the metal from special nozzle systems ("jet heating"). Unlike a classic gas fired heater where the flame temperature will always far exceed the temperature of the billet, a convection heater requires only small temperature differences. It can thus attain particularly close temperature tolerances reproducibly to meet special application requirements. The use of highly efficient recuperative burners ensures an efficiency that is second to none. Different conveyor systems are available to match various production requirements in the most cost-efficient manner.