Industrial Induction Melting Furnace for Metals and Alloys

Ⅰ. See an Actual Induction Melting System

The following videos show an actual zinc melting project. Zinc is one application of the induction melting systems supplied by Kechuang; furnace size, power, frequency and internal structure can be changed for other metals and production requirements.

Ⅱ. Metals and Melting Applications

Induction melting equipment can be configured for:

Typical processes include metal melting, alloy melting, remelting, casting material preparation, and melting with subsequent holding.

Different metals should not simply use the same furnace configuration. Melting temperature, batch weight, required melting time, production capacity and operating mode all influence the final equipment selection.

Ⅲ. Why Use Induction for Metal Melting?

An induction power supply and coil generate an alternating electromagnetic field to provide the heat required for melting.

For industrial production, the value of induction heating is not only the heating itself. Power input can be adjusted during operation, temperature can be monitored, and the heating process can be coordinated with repeated or continuous production.

Depending on the configuration, the system can provide:

Actual melting performance still depends on the complete furnace design. A higher power rating alone does not necessarily mean a higher practical melting capacity.

Ⅳ. Melting Furnace System Configuration

A complete induction melting system may include:

Furnace structure can vary considerably according to the application.

Smaller systems may use a crucible-type design. For suitable non-ferrous melting applications, SiC crucibles can be used with metals such as zinc, aluminum and copper.

Larger industrial systems may instead use a refractory-lined molten-metal bath.

The zinc furnace shown on this page is an example of a larger furnace structure and should not be treated as the same type of equipment as a compact crucible furnace.

Ⅴ. Actual Zinc Melting Case

Ⅵ. Power and Temperature Control

Different melting requirements can be matched with different induction power configurations.

These are induction power configurations rather than fixed furnace-capacity grades.

The required power needs to be evaluated together with:

Metal + Batch Weight + Target Temperature + Required Melting Time + Furnace Structure + Operating Mode

The control system can monitor electrical parameters such as voltage, current, output power, operating frequency and heating time.

Temperature monitoring can also be integrated according to the furnace and production process.

Where additional production records are required, the monitoring system can be configured for process curves, parameter limits, alarm records and historical operating data.

Ⅶ. Melting, Holding and Production Operation

In industrial production, the furnace may need to do more than melt one batch of metal.

A typical process may include:

Charging → Melting → Temperature Control → Stirring / Melt Handling → Holding → Transfer or Casting

The exact sequence depends on the metal and downstream process.

Where molten metal needs to remain available for the next production step, the system can be configured for both melting and holding.

Batch melting, repeated production and longer holding periods may require different furnace structures even when the same metal is processed.

Ⅷ. How to Select the Right Induction Melting Furnace

Equipment selection should begin with the actual melting requirement rather than the power rating alone.

Information	What We Need to Know
Metal	Zinc, aluminum, copper, gold, alloy, etc.
Alloy Grade	If applicable
Batch Weight	kg per batch
Production Capacity	kg/hour or batches/day
Starting Material	Ingot, block, return material, etc.
Target Temperature	Required melt temperature
Melting Time	Required time per batch
Operating Mode	Batch, repeated or continuous
Holding Requirement	Whether molten metal must be held
Factory Power Supply	Available electrical conditions
Automation Requirement	Manual or integrated operation

These factors are considered together when selecting:

Power + Frequency + Furnace Structure + Coil + Crucible / Lining + Temperature Control + Cooling

If an existing furnace is being replaced, its current melting capacity, melting time and operating method are also useful references.

Ⅸ. Frequently Asked Questions

Click a question to expand the answer.

What metals can the induction melting furnace process?

The system can be configured for zinc, aluminum, copper, gold and other suitable metals and alloys. The appropriate furnace and electrical configuration depend on the material and production requirement.

How do I choose the required induction power?

Power cannot be selected from batch weight alone. Metal type, target temperature, required melting time, furnace structure and operating mode also need to be considered.

Can one furnace melt different metals?

Possibly, but this should not be assumed automatically. Crucible or lining compatibility, operating temperature and contamination requirements need to be checked first.

Can the furnace hold molten metal after melting?

Yes. Where the production process requires it, a melting and holding configuration can be developed.

Can melting temperature be monitored?

Yes. Temperature monitoring and control can be configured according to the furnace structure and process.

Can process data be recorded?

With the corresponding monitoring configuration, electrical parameters, alarms, process curves and historical operating data can be stored for later review.

Ⅹ. Send Us Your Melting Requirement

For an initial equipment evaluation, provide: Metal + Batch Weight + Required Melting Time

For a more detailed proposal, you can also provide the alloy grade, target temperature, production capacity, holding requirement, available power supply and automation requirement.

Based on these details, Kechuang can evaluate the appropriate induction power, frequency, furnace structure, coil, crucible or lining, temperature-control method and cooling configuration.