Metal Flow Heater

The extension of the power grid, electric vehicles and the packaging industry have an increasing demand of aluminium. That makes an environmentally friendly recycling process of end-of-life scrap even more important than it already is. 

The melting process is almost exclusively done in fossil fueled single- or double chambered melting furnaces. A switch to more environmentally friendlier technologies has to this day not been an option because of either quality disadvantages or the loss of the continuous process in addition to higher energy costs.

In cooperation with the aluminium manufacturer Speira GmbH, we developed an inductively heated plant that converts existing melting furnaces that were heated with natural gas to electrically heated furnaces. This method also allows a use of both gas and electricity.

Our plant consists of a electromagnetic pump which conveys the molten aluminum from the chamber into the inductor and back to the chamber. The material is heated by passing through the induction furnace. In the pilot plant we managed to melt 300 kg/h of Aluminium at Speira's technical facilities with electricity.

The use of the inductive heating allows a reduction in CO2 emissions to the point of a climate neutral production and additional keeping all properties of the material and the process. Our solution also enables you to increase the throughput of your furnace and creates flexibility regarding energy prices and availability thanks to the possibility of hybrid heating.

Another advantage of a conversion is a shorter downtime and therefore less loss of production than a new furnace would cause.