Small induction furnace applies the induction heating principle, mainly applied for melting, smelting and refining of precious metals, such as platinum, palladium, rhodium, gold, gold powder, gold sand, silver, copper, zinc, etc.
Hitfar's 1–5 kg gold and silver induction melting furnace is designed for small-batch precious metal melting, remelting and casting preparation. The series includes 5 kW, 8 kW, 10 kW, 12 kW and 15 kW models, with 220 V single-phase and 380 V three-phase configurations available.
Portable, cabinet and step-type layouts are available. Tell us your metal or alloy, maximum batch weight, required melting cycle, local voltage and daily operating schedule, and our engineers will recommend a suitable model.
1, Testing and researching in the university's labs.
2, Dental & medical equipment will need it for heating and melting.
3, Jewelry processing need induction furnace for melting and then make the shapes by molds and other processing.
4, Refining & purifying gold or silver sands or ores in mining industry.
5, Jewelry shops and banks need gold melting machine to make gold bars.
| Specification | Available Range |
|---|
| Primary applications | Gold and silver melting and remelting |
| Compatible materials | Gold, silver, copper and compatible precious-metal alloys |
| Rated power | 5–15 kW |
| Listed batch range | 0.1–5 kg; confirm capacity by metal |
| Input voltage | 220 V single phase or 380 V three phase |
| Input frequency | 50/60 Hz |
| Output frequency | 1–30 kHz |
| Machine layouts | Portable, cabinet and step type |
| Cooling | External circulating water required |
| Protection | Overload, overvoltage, water shortage, short circuit and overheating |
MAIN FEATURES
1, Heating speed very quick, and adjustable induction gold melting furnace.
2, With induction stirring function itself, heating very evenly which profit for materials pure degree.
3, Output frequency from 1-30 KHz designed for free choice of melting capacities.
4, High efficiency and very little noise pollution.
5, No environmental pollution and energy-saving: 95% heat energy exchange rate, perfectly defeat melting machine driven by KGPS, electric resistance wire, gas, hard core, etc.
6, Maximum temperature can reach 2500 centigrade degrees
7, With automatically protection functions: the induction melting furnace will stop to work when meeting situations like overload, over voltage, water shortage, short circuit, overheat etc. Easy to operate.
8, Installation and operation very easy. Only need to connect to cooling water and electricity.
TECHNICAL PARAMETER
A, ZG-MP Moveable & Portable Type Small Induction Melting Furnace
| Model No. | ZG-MP Simple portable type gold/silver/copper melting machine |
| ZG-MP05 | ZG-MP08 | ZG-MP10 | ZG-MP12 | ZG-MP15 |
| Input Voltage | 220V/1P | 220V/1P | 380V/ 3P | 380V/ 3P | 380V/ 3P |
| Input current Hz | 50Hz/60Hz | 50Hz/60Hz | 50Hz/60Hz | 50Hz/60Hz | 50Hz/60Hz |
| Power | 5KW | 8KW | 10KW | 12KW | 15KW |
| Melting Volume | 100G~1KG | 1-2KG | 1-3KG | 1-4KG | 1-5KG |
| Melting Time | 1-2min | 3-5min | 5min | 5min | 5min |
| Dimension（cm） | 53*4.5*50 | 53*24.5*50 | 53*24.5*50 | 53*24.5*50 | 53*29*51 |
| Heating Station |
|
| 31.5*22.5*30 | 31.5*22.5*30 | 31.5*22.5*30 |
| N.W（KG） | 21KG | 22KG | 40KG | 45KG | 55KG |
B, ZG-MCT Cabinet Type Small Induction Melting Furnace
| Model No. | ZG-MCT cabinet type gold/silver/copper melting machine |
| ZG-MCT05 | ZG-MCT08 | ZG-MCT10 | ZG-MCT12 | ZG-MCT15 |
| Input Voltage | 220V/1P | 220V/1P | 380V/ 3P | 380V/ 3P | 380V/ 3P |
| Input current Hz | 50Hz/60Hz | 50Hz/60Hz | 50Hz/60Hz | 50Hz/60Hz | 50Hz/60Hz |
| Power | 5KW | 8KW | 10KW | 12KW | 15KW |
| Melting Volume | 100G~1KG | 1-2KG | 1-3KG | 1-4KG | 1-5KG |
| Melting Time | 1-2min | 3-5min | 5min | 5min | 5min |
| Dimension（cm） | 45*40*55 | 45*40*55 | 45*40*85 | 45*40*85 | 45*40*85 |
| N.W（KG） | 51 | 55 | 68 | 70 | 78 |
C, ZG-MFT Step Type Small Induction Melting Furnace
| Model No. | ZG-MFT Step type gold/silver/copper melting machine |
| ZG-MFT05 | ZG-MFT08 | ZG-MFT10 | ZG-MFT12 | ZG-MFT15 |
| Input Voltage | 220V/1P | 220V/1P | 380V/ 3P | 380V/ 3P | 380V/ 3P |
| Input current Hz | 50Hz/60Hz | 50Hz/60Hz | 50Hz/60Hz | 50Hz/60Hz | 50Hz/60Hz |
| Power | 5KW | 8KW | 10KW | 12KW | 15KW |
| Melting Volume | 100G~1KG | 1-2KG | 1-3KG | 1-4KG | 1-5KG |
| Melting Time | 1-2min | 3-5min | 5min | 5min | 5min |
| Dimension（cm） | 35*75*65 | 35*75*65 | 35*75*65 | 35*75*65 | 35*75*65 |
| N.W（KG） | 51 | 55 | 68 | 70 | 78 |
Gold and Silver Induction Melting Applications
This induction furnace is intended for controlled small-batch melting rather than general-purpose large foundry production. Typical applications include remelting jewelry scrap, preparing gold or silver for ingot casting, producing small alloy batches, laboratory material testing and processing prepared precious-metal feedstock.
For gold melting, the adjustable power range helps operators match the heating cycle to the batch size and crucible. Electromagnetic heating also supports more uniform heat distribution during the melting process.
For silver melting, model selection should consider not only batch weight but also the crucible size, charge shape, alloy composition and required production frequency. Customers planning repeated silver melts should also confirm cooling-water capacity and spare crucible requirements.
How Induction Heating Works for Silver and Gold
An alternating current passes through the induction coil and creates a rapidly changing magnetic field. This field generates heat in the conductive charge or compatible graphite crucible, raising the temperature until the gold or silver becomes molten.
Because the heat is produced without an open gas flame, induction melting provides a cleaner and more controllable working process. However, ventilation may still be required when melting contaminated scrap, coated materials or charges containing flux.
How to Select the Right Model
| Model | Power | Existing Listed Capacity | Power Supply |
|---|
| ZG-MP/MCT/MFT05 | 5 kW | 0.1–1 kg | 220 V, single phase |
| ZG-MP/MCT/MFT08 | 8 kW | 1–2 kg | 220 V, single phase |
| ZG-MP/MCT/MFT10 | 10 kW | 1–3 kg | 380 V, three phase |
| ZG-MP/MCT/MFT12 | 12 kW | 1–4 kg | 380 V, three phase |
| ZG-MP/MCT/MFT15 | 15 kW | 1–5 kg | 380 V, three phase |
As an experienced small induction furnace supplier, Hitfar offers a range of services to support our customers, including design and engineering assistance, training, and technical support. If you are looking for high quality induction melting furnace for sale, welcome to contact us for detailed information!
FAQ:
Can this induction furnace melt both gold and silver?
Yes. The series is designed for small-batch gold and silver melting. The appropriate model and crucible should be selected according to the metal, alloy composition and maximum batch weight.
Which induction furnace should I choose for 1 kg of gold?
The existing specifications list the 5 kW model for batches from 0.1 to 1 kg. Final selection should also consider the required melting time, operating frequency and available power supply.
Can the same crucible be used for gold and silver?
A compatible graphite crucible may be used, but dedicated crucibles are recommended when contamination or alloy consistency is important. Confirm crucible material and dimensions before ordering.
How long does it take to melt gold or silver?
The existing model table lists reference melting times of approximately 1–5 minutes. Actual cycle time depends on the metal, batch weight, charge shape, crucible, starting temperature and electrical conditions.
Does the induction furnace require water cooling?
Yes. The induction power supply and coil require a suitable circulating-water system. For frequent or continuous operation, a matched industrial water chiller is recommended.
Is this gold and silver induction smelting equipment suitable for processing ore?
The standard furnace is primarily intended for melting or remelting prepared metallic charge. Processing ore or concentrate may require pretreatment, flux control, gas extraction and additional refining equipment. Send the raw-material details for technical evaluation.
Can the furnace melt copper as well?
Compatible copper and copper-based materials can be processed when the selected power, crucible and operating conditions meet the application requirements.
What information is needed for a quotation?
Provide the metal, batch weight, voltage, required melting time, daily production schedule and preferred machine layout. This allows the supplier to recommend the furnace, crucible and cooling configuration together.
