1-2kg Mini Gold Melting Furnace

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CDOCAST Compact Induction Melting Equipment

Desktop Mini Gold Melting Furnace for 1kg and 2kg Batches

CDOCAST CDO-GMF1 and CDO-GMF2 mini gold melting furnaces are compact single-phase induction machines for small-batch precious metal melting. The 1kg and 2kg models operate on 220V power, reach up to 1250°C and typically melt a gold or silver charge in approximately 3 minutes.

The desktop gold melting furnace is suitable for jewelry workshops, precious metal recycling, sampling, laboratory alloy preparation and other controlled small-volume applications.

1kg gold melting furnace 2kg gold melting furnace 220V single-phase induction CDO-GMF1 / CDO-GMF2
1kg / 2kgGold or silver capacity
1250°CMaximum temperature
Approx. 3 minTypical melting time
5kW / 6kWInduction power
21kgCompact machine weight

Mini Gold Melting Furnace Features

Compact induction heating, temperature monitoring and water cooling for controlled small-batch precious metal melting.

Approximately 3-Minute Melting

The 5kW CDO-GMF1 and 6kW CDO-GMF2 typically melt a small gold or silver charge in approximately 3 minutes under suitable operating conditions.

Electromagnetic Stirring

The induction field creates natural electromagnetic stirring in the molten metal, helping distribute heat and alloying elements more evenly.

Compact Desktop Design

The 300 × 300 × 400 mm machine body occupies little workshop space and weighs approximately 21 kg.

1250°C Maximum Temperature

The mini induction furnace is suitable for gold, silver, copper, aluminum and compatible non-ferrous metals within the verified temperature range.

Temperature Monitoring

The control panel provides power adjustment and thermocouple monitoring so operators can observe and control the heating process.

Cooling-Water Protection

A continuous cooling-water circuit protects the induction coil and power system during operation.

CDO-GMF1 and CDO-GMF2 Technical Specifications

Compare the 1kg and 2kg mini gold melting furnace models.

ParameterCDO-GMF1CDO-GMF2
VoltageSingle phase, 220V ±10%Single phase, 220V ±10%
Power5 kW6 kW
Capacity1 kg gold or silver2 kg gold or silver
Maximum temperature1250°C1250°C
Typical melting timeApproximately 3 minutesApproximately 3 minutes
Machine weight21 kg21 kg
Packed weightApproximately 45 kgApproximately 45 kg
Machine dimensions300 × 300 × 400 mm300 × 300 × 400 mm
Crucible dimensionsGraphite crucible Ø34 × 89 mm
Quartz sleeve Ø50 × 86 mm
Graphite crucible Ø44 × 110 mm
Quartz sleeve Ø60 × 106 mm
Capacity note: Melting time varies with the metal, charge condition, starting temperature, crucible, power supply and operating parameters. Approximately 3 minutes is the typical reference cycle under suitable operating conditions.

Machine Details

Control, dimensions and cooling connections for desktop installation.

portable 1kg gold melting furnace size for jewelry workshop installation

Cooling and Installation Requirements

The small induction furnace requires more than a suitable power outlet. Confirm the cooling circuit, ventilation and safe working space before installation.

  • Power: single-phase 220V supply sized for the selected 5kW or 6kW model.
  • Cooling: a water pump and tank can support standard use; a matching water chiller is recommended for longer production cycles and more stable cooling.
  • Work area: provide a stable bench, ventilation and clearance for hot crucible handling.
  • Operation: use trained personnel, suitable protective equipment and the supplied operating instructions.

Applications for Small-Batch Precious Metal Melting

Choose the model according to metal, batch weight, production frequency and workshop utilities.

Jewelry Workshops

Melt small gold or silver batches for alloy preparation, jewelry production, repair and remelting.

Precious Metal Recycling

Prepare controlled small batches of recycled gold and silver before casting or further processing.

Sampling and Laboratories

Use the compact furnace for compatible non-ferrous alloy samples and controlled small-volume material tests.

Related Equipment and Selection Guides

Useful internal resources for larger batches, consumables and downstream casting.

Mini Gold Melting Furnace FAQ

Direct answers about capacity, temperature, cooling and operation.

How long does the 1kg or 2kg mini gold melting furnace take to melt a batch?

The CDO-GMF1 and CDO-GMF2 typically melt a gold or silver charge in approximately 3 minutes. Actual melting time depends on the metal, batch weight, charge condition, starting temperature, power supply and operating parameters.

What is the maximum temperature of the mini gold melting furnace?

The maximum operating temperature of the CDO-GMF1 and CDO-GMF2 is 1250°C. The furnaces are suitable for compatible non-ferrous metals whose melting requirements remain within the machine specification.

Should I choose the CDO-GMF1 or CDO-GMF2?

Choose CDO-GMF1 for gold or silver batches up to 1 kg and CDO-GMF2 for batches up to 2 kg. Also compare available electrical power, crucible size and required production frequency.

Does the furnace require a water chiller?

The furnace requires a continuous cooling-water circuit. A suitable water pump and tank can support standard operation; a matching water chiller is recommended for longer duty cycles and more stable cooling.

Can the furnace melt metals other than gold?

Yes. Within the 1250°C operating limit, the mini induction furnace can process silver, copper, aluminum and other compatible non-ferrous metals. Confirm the metal and required batch weight before use.

Will induction melting change the purity of the metal?

Induction melting does not refine the metal or guarantee unchanged purity. Final composition depends on the charge material, crucible condition, oxidation, flux use, handling and operating control.

Is this a home-use gold melting furnace?

This is compact industrial melting equipment, not a household appliance. It should be installed and operated by trained personnel with suitable power, cooling, ventilation and protective equipment.

How should the graphite crucible be maintained?

Keep the crucible dry, avoid thermal and mechanical shock, use compatible tools and replace it when cracks, oxidation or excessive wall wear are visible. Crucible life varies with metal, temperature and operating practice.

Confirm the Right 1kg or 2kg Furnace

Send CDOCAST the metal, maximum batch weight, voltage standard and expected daily production frequency for CDO-GMF1 or CDO-GMF2 configuration confirmation.

Contact CDOCAST

Machine Pictures

1kg 2kg Mini Gold Melting Furnace 

mini gold melting furnacemini gold melting furnace1KG  2KG Mini Gold Melting Furnace Details:

2kg gold melting furnace detail

small-gold-melting-machine