An induction billet heater is a specialized piece of equipment that uses induction heating to heat billets, which are small, cylindrical pieces of metal, to a specific temperature before they are extruded or otherwise formed into a desired shape. The process can be used to heat billets made of a wide variety of metals, including steel, aluminum, and copper.

The basic principle of induction billet heating is that an induction heating coil is used to heat the billet to a precise temperature before it is extruded or formed. The heating coil is placed around the billet, and high-frequency electrical current is passed through the coil, creating an electromagnetic field that heats the billet. The billet is then extruded or formed into the desired shape.