Introduction

The 10–20kg vacuum induction melting furnace is engineered for small-scale industrial production and high-precision research applications. It utilizes medium frequency induction heating in combination with a high-performance vacuum system, enabling metal melting under high vacuum conditions. Ideal for processing nickel-based alloys, special steels, magnetic materials, and high-temperature alloys, this furnace is also suitable for the vacuum precision casting of small metal parts.

Key Features

• Advanced Heating: Equipped with either IGBT or KGPS medium frequency power supply; maximum temperature reaches up to 2300℃.
• Efficient Vacuum System: Integrates mechanical pump + Roots pump + diffusion pump combination; ultimate vacuum level can reach 6 × 10⁻³ Pa.
• Alloy Feeder: Standard manual feeder allows step-by-step material addition using a hand wheel; optional secondary feeding system for continuous vacuum feeding.
• Smart Operation: User-friendly HMI with HD touch screen and built-in proprietary control software.
• Observation Window: High-clarity glass observation window (with vapor shield) for monitoring the melting process.
• Robust Induction Structure: Inductor made from rectangular copper tubing, fixed via double coupling heads for easy disassembly.
• Customizable Crucibles: Can be fitted with pre-sintered forming crucibles or pounded crucibles; refractory material chosen based on the type of metal being processed.

Furnace Structure and Components

• Induction Coil： Water-cooled copper coil powered by a medium-frequency power supply, generating a magnetic field to heat the metal through electromagnetic induction.
• Crucible： Located inside the coil, used to hold and melt metal. Common materials include magnesia, alumina, zirconia, and graphite for high-temperature resistance.
• Vacuum Chamber： Encloses the coil and crucible in a sealed environment to prevent oxidation and contamination during melting.
• Vacuum System： Consists of vacuum pumps, valves, and gauges to evacuate air and maintain a high vacuum level, typically up to 7×10⁻³ Pa.
• Furnace Body with Water Cooling： The furnace shell and lid are equipped with water-cooling jackets to control external surface temperature and ensure operational safety.
• Tilting Mechanism： Allows the furnace body to tilt for smooth and controlled pouring of molten metal into molds.
• Medium-Frequency Power Supply： IGBT or KGPS units providing 10–30 kHz medium-frequency current with high efficiency and power control.
• Electrical Control System： Controls key process parameters such as power, temperature, time, and vacuum level; supports automated or semi-automated operation.

Technical Parameters