Reliable Induction Melting Solutions

Our induction melting furnaces offer high efficiency, low energy use, and excellent alloy mixing. They are ideal for metal scraps and raw materials. As a leading Chinese manufacturer, we provide custom solutions for diverse industrial needs.

KEXIN Induction Melting Furnace

KEXIN offers advanced induction melting furnaces focused on efficiency, durability, and precision. Our furnaces use thick-walled conductive copper tubes and support various crucible options, including graphite, clay graphite, and silicon carbide. Third-generation inverter technology and IGBT heating elements ensure stable and high-quality melting results.

We provide solutions for both small and large-scale melting needs. Capacities range from less than 1 kilogram to 100 tons, suitable for melting iron, steel, copper, aluminum, and precious metals. Applications include high-purity metal refining, smelting, and vacuum or controlled atmosphere melting.

Our furnaces are fully customizable to meet specific requirements. Optional automation features are available to enhance efficiency and consistency.

25KW Gold Melting Induction Furnace

18KW High Frequency Induction Heating Machine

70KW Medium Frequency Induction Melting Equipment

1-5KG Gold Melting Induction Furnace

15KW Medium Frequency Induction Melting Furnace

160KW Medium Frequency Induction Metal Melting Equipment

What is Induction Melting?

An induction furnace is an electrical furnace that uses induction heating to melt metals. It is suitable for melting iron, steel, copper, aluminum, and precious metals. Capacities range from less than 1 kg to 100 tons.

The induction furnace offers a clean and energy-efficient melting process. It provides better control compared to other metal melting methods. This makes it ideal for modern foundries and industrial applications.

Many foundries use induction furnaces to replace cupola furnaces. This reduces dust and pollutants during the melting process. Unlike arc or blast furnaces, induction furnaces do not rely on arcs or combustion. This prevents unnecessary overheating and loss of alloying elements.

The Basics of Induction Melting

Induction melting is a process that uses electromagnetic induction to heat and melt metals or other conductive materials. It is a clean, efficient, and precise method widely used in various industries, including metalworking, foundries, and manufacturing.

How Induction Melting Works

Induction melting uses a magnetic field to heat and melt metals efficiently. A high-voltage power supply drives the primary coil. This generates low-voltage, high-current energy that flows into the metal or secondary coil. Eddy currents form inside the metal through electromagnetic induction, causing rapid heating.

As the eddy currents circulate, heat distributes evenly within the metal. This ensures efficient and uniform heating. The magnetic field allows the use of refractory materials or non-conductive media to isolate the metal from the induction coil. It enhances safety during the process.

When the metal starts to melt, the magnetic field and coil current interaction increases the heat. The temperature rises until it reaches the desired level. Infrared sensors or thermocouples control the melting temperature precisely.

Induction Melting Compared to Other Melting Methods

Compared to traditional melting methods, induction melting offers distinct advantages. Traditional techniques like gas furnaces, electric furnaces, and salt baths rely on convection and radiation to transfer heat from sources such as burners, heating elements, or molten salt to the material’s surface. The heat then penetrates the material through thermal conduction, which can result in slower and less uniform heating.

Induction melting operates differently. It directly heats the material by generating currents within it, bypassing the need for convection or radiation. This method ensures efficient energy transfer and allows for deeper heat penetration governed.

The Benefits Of Induction Melting

Improve Efficiency

Induction melting uses high-voltage primary coils to generate frequencies from 50 Hz to 10,000 Hz. This enables rapid heating and high thermal efficiency. The process shortens metal melting times, boosts steel production, and minimizes combustion losses.

Reduce Operating Costs

Modern induction furnaces lower energy consumption and production costs. Automation reduces waste, including metal residue losses common in traditional electric furnaces.

Reduce Oxidation Losses

Core-type induction furnaces operate at low frequencies. This can reduce oxidation and burning losses. These furnaces minimize the combustion rate of metallic elements and limit molten steel oxidation. The process avoids electrodes, reducing slag production.

Clean Operations

Induction melting produces fewer emissions than traditional methods. It reduces gases, smoke, and dust to make operations environmentally friendly. Foundries benefit from cleaner processes and better emission control.

Induction Melting For Diverse Applications

Induction Melting to Make Bars

Induction Melting for Metal Powders

Large Scale Capacity Induction Melting Furnace

100KG Induction Melting Furnace

Induction Melting for Glasses

Induction Melting for Previous Metals

Industries Of Induction Melting

Induction melting is a process that uses electromagnetic induction to heat and melt metals and alloys. It is widely used in various industries, where precise control of melting temperature, efficient energy utilization and the quality of the melted material are crucial. It is widely used in various industries:

Metalworking and Machinery

Metalworking industries utilize induction melting for producing raw materials, semi-finished products, and components used in machinery and equipment manufacturing. Induction melting facilitates the production of metal ingots, billets, bars, and other forms required for forging, rolling, extrusion, and machining processes in various industries.

Energy and Power Generation

Induction melting plays a vital role in the energy and power generation sector for producing components used in turbines, generators, boilers, and power transmission systems. Materials such as stainless steel, nickel alloys, and superalloys melted via induction are essential for withstanding high temperatures, pressures, and corrosive environments in power plants and energy infrastructure.

Metallurgical Industry

Induction melting furnaces are highly efficient and controllable because they generate heat directly within the body of the metal charge kept inside the crucible. Therefore, in metallurgical industries, induction melting furnaces are widely used for melting of various metals like steel, copper, iron, aluminum, etc.

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FAQS

01.What is an induction melting furnace?

An induction furnace is an electrical furnace in which the heat is applied by induction heating of metal. Induction furnace capacities range from less than one kilogram to one hundred tons, and are used to melt iron and steel, copper, aluminum, and precious metals.

02.Why should I buy an induction melting furnace?

Induction furnaces do not require an arc, as in an electric arc furnace, or combustion, as in a blast furnace. As a result, the temperature of the charge (the material entered into the furnace for heating, not to be confused with electric charge) is no higher than required to melt it; this can prevent the loss of valuable alloying elements.

03.What are the advantages of induction melting furnace?

Melting metals with induction heating provides reliable, repeatable, non-contact, safe and energy-efficient heat, eliminating heat losses and workplace dangers experienced with flame. Since induction heats only the charge materials, the process is precise and efficient: it does not waste energy heating a chamber, nor does it pose the safety risk of open flame.

04.How to choose the frequency of induction melting furnace?

For different workpiece materials, sizes and shapes, the frequency will be different accordingly.

Please send inquiry to us, we will recommend the optimal induction heating machine on your request.

05.What cooling systems are used with induction melting furnaces?

Most furnaces use water-cooled systems to prevent overheating and ensure continuous operation.

06.How to choose the cooling system for induction melting furnace?

We will recommend the most suitable cooling system based on different melting requirements.

07.Do I need to buy a cooling system separately for KEXIN induction melting furnace？

Yes, you can prepare a water tank and a water pump to work as cooling system; Or you can directly prepare a cooling chiller.

08.What is the lifespan of an induction melting furnace?

With proper maintenance, these furnaces can last for many years, making them a cost-effective solution for industrial use.

09.What maintenance is required for induction melting furnaces?

Regular inspections of the cooling system, power supply, and crucible integrity are crucial for optimal performance.

10. Can induction furnaces operate continuously?

Yes, some models are designed for continuous operation, making them ideal for industrial production lines.

11. What power options are available for induction melting furnaces?

These furnaces come in high, medium, and ultra-high frequency models, offering power options suitable for small to large-scale operations.

12. Why are induction furnaces preferred for melting precious metals?

Induction furnaces provide precise temperature control, reduce material loss, and ensure the purity of precious metals like gold and silver.

13. Can induction furnaces be used for alloy production?

Yes, they are highly effective for creating custom alloys due to precise temperature control and uniform heating.

14. What are the common applications of induction melting furnaces?

They are used for melting, alloying, and casting high-quality steels, non-ferrous alloys, and precious metals.

15. What is the difference between high-frequency and medium-frequency induction furnaces?

High-frequency furnaces are ideal for small-scale, precise melting tasks, while medium-frequency furnaces are suited for larger-scale melting of bulk materials.

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