The induction oven

Induction furnaces are widely used not only in the metal producing and metal processing industry, but also in special applications (high-purity or high-temperature alloys under vacuum) or on a small scale, e.g. in jewelry production.
In the field of melting, induction furnaces are essentially divided into crucible induction furnaces and channel-type induction furnaces. While the induction furnace is used in particular as a melting furnace in the MF range, the channel-type induction furnace is usually used for holding and melting non-ferrous metals in the LF range.

The induction crucible oven

The metal to be melted is melted in a crucible (usually made of refractory ceramic ramming mass), which is positioned inside the energizing induction coil, and superheated to the casting temperature. Characteristic features of the coreless induction furnace are

  • a homogeneous melt due to constant bath movement
  • Low burn-off due to reduced overheating
  • High throughput
  • Very precise adjustment of the alloy composition
  • Precise temperature setting
  • High quality

The induction channel furnace

The induction channel furnace got its name from its design, in which the energy required for melting is introduced within the so-called melting channel. The principle of operation of the induction channel furnace corresponds physically to a transformer in which the primary coil is fed by a mains frequency generator and the field generated by it is conducted via a sheet metal core to the short-circuited secondary coil (the channel). The superheated melt in the channel is transported into the furnace vessel by convection and thermal buoyancy. Features of the induction channel furnace are:

  • Outstanding electrical efficiency
  • High power factor
  • High suitability as a heat retention unit

Advantages of induction melting

In addition to high energy efficiency and excellent automation and process control, induction melting offers further physical advantages. The highly turbulent bath movement driven by the electromagnetic fields not only leads to constant mixing but also to a more homogeneous temperature distribution within the melt. Melting in an induction furnace is therefore not only more economical, but also offers decisive advantages in terms of product quality.
We sell a comprehensive range of products for induction melting systems and holding furnaces. Thanks to their high quality and outstanding engineering, the systems we sell have proven themselves in many years of industrial use at international companies.

Induction melting systems and holding furnaces

Induction furnace

Leistung: < 1,2 MW
Frequenzbereich: < 3 kHz
Schmelzvolumen: bis 2 t

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