High Frequency Induction Heater with 20-50kHz Fluctuating Frequency Easy to Operate and Fast Heating Speed

Induction heating is a process used to bond, harden, or soften metals and other conductive materials. For modern manufacturing, it offers an optimal combination of speed, consistency, control, and energy efficiency.

The basic principles of induction heating have been applied to manufacturing since the 1920s. During World War II, the technology advanced rapidly to meet urgent requirements for hardening metal engine parts. Today, with lean manufacturing techniques and improved quality control, induction technology has been rediscovered alongside the development of precisely controlled, solid-state induction power supplies.

When an alternating electrical current is applied to a transformer's primary coil, it creates an alternating magnetic field. According to Faraday's Law, if a secondary coil is placed within this field, an electric current is induced.

In induction heating, a power supply sends AC current through a copper coil (inductor), with the workpiece placed inside. The inductor acts as the primary transformer, while the workpiece becomes a short-circuit secondary. When metal enters this magnetic field, circulating eddy currents are induced within the part, generating heat.

• Water Cooling System: Completely water-cooled structure with lower loss and higher reliability
• Temperature Control: Closed-loop program achieves stable temperature control without overshoot, capable of heating workpieces from grams to hundreds of tons
• Heating Speed: Offers both rapid (second-level) and slow (days-long) temperature change rates (0.1°C/H-1600°C/S)
• Customizable Sensors: Temperature transmitter type and range can be customized; automatically selects highest temperature point for control
• Operating Modes: Four basic modes - Constant current, Constant power, Constant temperature (optional), Process program (optional)
• IGBT Drive Circuit: Fast circuit improves resonance waveform, reduces dead time and switching loss
• High Reliability: Each unit undergoes high-power operation testing and aging at factory
• Safety: Transformer-isolated output compliant with European and American standards
• Control Options: Fully automatic, manual, and foot switch operation modes
• Adjustable Output: Current (1%-100%) and power (0.2%-100%) with wide stable range
• Protection Systems: Comprehensive safeguards against over-current, short circuit, over-voltage, over-temperature, and more
• Timing Functions: Automatic countdown stop and timing capabilities
• Remote Control: Multiple I/O interfaces with handheld remote control box option