Medium Frequency Gold Melting Furnace

How it works

silver, platinum and other precious metals. It is widely used in jewelry processing factories, precious metal refineries, gold recycling plants, laboratory analysis and small-scale precious metal smelting industries. It is ideal for gold purification, gold bar casting, jewelry raw material melting and precious metal waste recycling and remelting.

An induction furnace melts by putting the metal inside the magnetic field of a coil. Alternating current in the coil induces currents in the charge itself, so the metal heats from the inside out and the melt is stirred electromagnetically as it forms. There is no flame and no combustion gas in contact with the metal, which is why losses and gas pickup are lower than in a fuel-fired furnace.

Frequency sets the character of the melt. Medium frequency couples efficiently into a charge of mixed piece size and gives the stirring that homogenises alloy, while higher frequency concentrates power into smaller volumes. Power supply, coil, capacitor bank and cooling are designed as one system — changing furnace size without changing the power pack is what produces disappointing melt rates.

Key features

• Fast Heating & High Melting Efficiency：
• Induction direct heating mode realizes rapid melting of gold materials in a short time, greatly shortening smelting cycle and improving daily production capacity
• High Purity Melting Effect：
• Closed melting environment with low oxidation loss, which effectively protects gold activity, avoids impurity mixing and ensures high purity of molten gold liquid
• Precise Temperature Control：
• Intelligent digital temperature adjustment system, accurate heating power and temperature control, stable melting state and consistent casting quality of finished gold products

How to choose induction melting

• Start from the pour weight and the melt time you need, then work back to installed power; furnace capacity alone tells you the crucible volume, not the melting rate.
• Check the transformer and the supply you have. A furnace that needs more kVA than the site can deliver is a site upgrade, not an equipment purchase.
• Decide on tilt arrangement (hydraulic or manual), because it determines the pouring layout and the ladle handling around the furnace.
• Plan cooling as part of the package. Closed-loop cooling is what allows the power supply to run continuously without depending on the local water quality.

Technical data

Specifications are indicative for the model family and are confirmed against your material in the quotation. Wear parts, power supply and control options are listed per project.

Frequently asked questions