The 5kW CDO-GMF1 and 6kW CDO-GMF2 typically melt a small gold or silver charge in approximately 3 minutes under suitable operating conditions.
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CDOCAST Compact Induction Melting Equipment
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.
Compact induction heating, temperature monitoring and water cooling for controlled small-batch precious metal 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.
The induction field creates natural electromagnetic stirring in the molten metal, helping distribute heat and alloying elements more evenly.
The 300 × 300 × 400 mm machine body occupies little workshop space and weighs approximately 21 kg.
The mini induction furnace is suitable for gold, silver, copper, aluminum and compatible non-ferrous metals within the verified temperature range.
The control panel provides power adjustment and thermocouple monitoring so operators can observe and control the heating process.
A continuous cooling-water circuit protects the induction coil and power system during operation.
Compare the 1kg and 2kg mini gold melting furnace models.
| Parameter | CDO-GMF1 | CDO-GMF2 |
|---|---|---|
| Voltage | Single phase, 220V ±10% | Single phase, 220V ±10% |
| Power | 5 kW | 6 kW |
| Capacity | 1 kg gold or silver | 2 kg gold or silver |
| Maximum temperature | 1250°C | 1250°C |
| Typical melting time | Approximately 3 minutes | Approximately 3 minutes |
| Machine weight | 21 kg | 21 kg |
| Packed weight | Approximately 45 kg | Approximately 45 kg |
| Machine dimensions | 300 × 300 × 400 mm | 300 × 300 × 400 mm |
| Crucible dimensions | Graphite crucible Ø34 × 89 mm Quartz sleeve Ø50 × 86 mm | Graphite crucible Ø44 × 110 mm Quartz sleeve Ø60 × 106 mm |
Control, dimensions and cooling connections for desktop installation.

The English operating panel provides power adjustment and temperature monitoring for controlled melting.

The 300 × 300 × 400 mm footprint fits suitable jewelry workshop benches and precious metal laboratory work areas.

The inlet and outlet connect the furnace to a stable circulating-water system for coil and power-system cooling.

The small induction furnace requires more than a suitable power outlet. Confirm the cooling circuit, ventilation and safe working space before installation.
Choose the model according to metal, batch weight, production frequency and workshop utilities.
Melt small gold or silver batches for alloy preparation, jewelry production, repair and remelting.
Prepare controlled small batches of recycled gold and silver before casting or further processing.
Use the compact furnace for compatible non-ferrous alloy samples and controlled small-volume material tests.
Useful internal resources for larger batches, consumables and downstream casting.
Direct answers about capacity, temperature, cooling and operation.
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.
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.
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.
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.
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.
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.
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.
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.
Send CDOCAST the metal, maximum batch weight, voltage standard and expected daily production frequency for CDO-GMF1 or CDO-GMF2 configuration confirmation.