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Contactless and homogeneous melting

Induction heating is gaining in importance in melting furnaces in foundries and in the glass industry. This is based on two factors: a growing demand for quality and requirements that call for melting equipment which is as environmentally friendly as possible. There are two different types of induction heating melting furnaces:

  • crucible induction furnace
  • channel induction furnace

TRUMPF Hüttinger generators are mainly used with systems that use crucible furnaces. Their principle will be explained detailed below.

Levitation melting

A coil envelops a fusion crucible made of a fireproof ceramic ramming mass. The material to be melted is put into the crucible and heated. Alternating current flowing through the coil, generates an electromagnetic field which transfers the electrical energy to the melting stock in a non-contact manner. The field is at its most dense inside the coil.

This procedure allows for homogenous melt and low melting losses due to localized overheating (less material used). Temperature and alloy compositions can be set very precisely.


HF-Generator zur Induktionserwärmung
TruHeat HF Series 1000 / 3000 / 5000

High power, compact format

Leistungsstarker Induktionsgenerator: TruHeat MF 5040
TruHeat MF Series 3000 / 5000 / 7000

Precise power for unbeatable heating efficiency

Mittelfrequenzgenerator der TruHeat MF Serie 7000 (G2) für induktive Erwärmung
TruHeat MF Series 7000 (G2)

The combination makes it unique


Nikolas Hunzinger
Induction Sales
Service & contact