Special materials and tooling for induction heating
We select and use only high-performance technical materials to increase the efficiency, durability and stability of our induction heating systems.
Power, efficiency and versatility for every industrial system
The quality of an induction heating system depends on the materials used.
That is why Aselt supplies and uses special components carefully selected to ensure maximum magnetic, thermal and electrical performance.
From Fluxtrol® magnetic flux concentrators to Cu+Ag 0.1% copper and silicon nitride (Si₃N₄) insulators, every material helps improve the efficiency and precision of industrial heat treatments.
Fluxtrol®
Fluxtrol® is a low-loss soft magnetic material used by Aselt as a flux concentrator inside induction coils.
Its role is to direct the magnetic field only where it is needed, improving efficiency and reducing energy consumption. Aselt is also a Fluxtrol® supplier for the whole of Italy.
Key benefits:
- Higher magnetic field density.
- More uniform heating.
- Reduced lateral losses.
- Energy savings of up to 20%.
Typical applications:
- Localised hardening of shafts, gears and pinions.
- High-frequency brazing.
- Precision controlled heating.
Silicon nitride (Si₃N₄)
Silicon nitride (Si₃N₄) is an advanced ceramic material used for insulating tooling and supports in induction heating processes.
It offers outstanding mechanical and thermal properties:
- Complete electrical insulation.
- Heat resistance up to 1000 °C.
- Low thermal expansion.
- Excellent resistance to thermal and mechanical shock.
Main uses:
- Pins and supports for workpiece positioning.
- Fixtures for induction heat treatments.
- Spacers and insulating inserts for coils.
Custom tooling and fixtures
In addition to the main materials, Aselt manufactures special tooling and support fixtures designed to measure to keep the workpiece correctly positioned during processing.
Every fixture is built to withstand:
- High temperatures.
- Repeated mechanical stress.
- Intense magnetic flux.
Available fixture types:
- Drilled copper bars for cooling.
- Insulating clamps.
- Ceramic or composite elements.
This tooling helps improve process accuracy and reduce deformation and waste.
Industrial applications
Aselt materials and tooling are used in every sector that demands reliability and precision in induction heating processes:
- Automotive – Heat treatment of shafts, gears and joints.
- Tooling – Localised heating and precision brazing.
- Energy – Metal components and industrial fittings.
- General engineering – Localised treatments on steels and special alloys.