GAOHUI 24V 4000A Rare Earth Smelting Rectifier Industrial High Frequency Power Supply for Molten Salt Electrolysis DC Power Source

Crafted for the severe electrochemical demands of rare earth element extraction, the GAOHUI 24V 4000A rectifier provides unmatched current control precision and operational stability. This system replaces obsolete silicon-controlled (SCR) units with advanced IGBT inverter technology, ensuring consistent DC output for critical processes like neodymium, praseodymium, and dysprosium smelting. As a leading industrial high frequency rectifier factory, we guarantee a power supply that dramatically reduces harmonic pollution and delivers energy savings of up to 15% compared to traditional converters, safeguarding the purity of your final product.
PART 1 KEY FEATURES & ENGINEERING HIGHLIGHTS
ULTRA-STABLE CURRENT CONTROL
The rectifier utilizes closed-loop feedback to maintain a steady 4000A output, eliminating the current fluctuations that cause uneven electrolysis and crystal formation defects in rare earth metals. This precision directly translates to higher recovery rates and consistent product quality.
SUPERIOR ENERGY EFFICIENCY
By employing zero-voltage switching (ZVS) technology and IGBT modules, the unit achieves a peak conversion efficiency of 92%. This significantly lowers the heavy-duty DC power supply price per ton of metal produced, reducing your operational expenditure and heat dissipation requirements.
ADVANCED IGBT INVERTER MODULE
The core of this system features our proprietary IGBT power module, designed for high-frequency operation. This architecture provides a rapid response to load changes, a necessity for maintaining bath stability in rare earth molten salt electrolysis.
SMOOTH DC OUTPUT
The high-frequency switching design yields a ripple factor of less than 5%, protecting your bath chemistry and extending the service life of your electrodes and anodes.
PART 2 TECHNICAL SPECIFICATIONS TABLE

PART 3 ADVANCED BUILT-IN PROTECTION SYSTEMS
Our units are equipped with a comprehensive safety suite to prevent catastrophic failures in continuous smelting operations. The system monitors for over-voltage, over-current, short-circuit, and IGBT over-temperature conditions. A built-in phase loss detection circuit automatically locks the unit if input power is unstable. These protections allow you to operate near the thermal limits safely, maximizing productivity without risking equipment damage.
PART 4 TARGET INDUSTRIAL APPLICATIONS
This power source is specifically engineered for high-current, low-voltage electrolysis environments where precision and durability are non-negotiable.
RARE EARTH METAL SMELTING: Ideal for the electrolytic production of neodymium, praseodymium, and mischmetal from molten fluoride or chloride salts.
MOLTEN SALT ELECTROLYSIS: Suitable for the production of metals like magnesium, lithium, and aluminum from their respective chemical salts.
POWDER METALLURGY: Can be configured for specialized sintering and reduction processes requiring precise amperage control.
PART 5 CUSTOMIZATION AND TAILORED ENGINEERING SERVICES
GAOHUI offers full customization because no two smelting formulas are the same. You can configure this rectifier across our entire range: 1V-1000V and 1A-100,000A.
ADVANCED PROCESS MODULES:
Process Timer: Automate multiple steps for batch consistency.
Multi-Stage Profile Control: Pre-set complex current ramps and dwell times.
Ampere-Minute Integrator: Real-time accumulation of total charge (A-min) for precise metal deposition tracking.
Automatic Reverse Polarity: For optional periodic current reversal to break down crust formation in the cell.
Soft-Start Function: Eliminates current surges during startup, protecting cold electrodes.
INTERFACE & COMMUNICATION INTEGRATION:
Integrate this unit into your factory 4.0 system via RS485 Modbus RTU, Ethernet/IP, or analog 4-20mA signals.
ADVANCED PULSE FUNCTIONS:
Request an optional pulse module with adjustable frequency from 1 to 3000 Hz. This can improve crystal density in specialized rare earth applications.
As a dedicated IGBT rectifier manufacturer with ISO9001 certification, GAOHUI delivers a ready-to-ship solution that performs out of the box. For your next project, we provide direct engineering support to integrate a custom current voltage rectifier into your existing plant layout. Contact us for a quotation on your specific voltage and amperage requirements.