Copper Electrolysis DC Rectifier 12V 5000A GAOHUI IGBT Power Supply for EW

Executive Summary
Engineered specifically for the demanding cathode quality and current density requirements of copper electrowinning (SX-EW) and electrorefining processes, this GAOHUI 12V 5000A DC rectifier represents the pinnacle of high-efficiency, heavy-duty power conversion. Moving beyond traditional thyristor or SCR technologies, this solid-state unit utilizes advanced IGBT switching at high frequencies to deliver ripple-free DC with exceptional stability. As a reliable IGBT rectifier manufacturer, we provide a solution that significantly reduces energy loss per ton of copper produced while offering a robust, low-maintenance footprint. If evaluating a heavy-duty DC power supply price, this model offers the lowest total cost of ownership through superior power factor correction and reduced cooling overhead.
Part 1 Key Features & Engineering Highlights
This unit is built for the harsh realities of a tank house environment. The core of the system is engineered with the latest generation IGBT modules, enabling switching frequencies that produce a DC output with ripple content below 1% (rated condition). This level of purity directly enhances cathode deposit morphology, reducing nodulation and short circuits. The industrial high frequency rectifier factory design incorporates full digital control via a 7-inch HMI, allowing operators to precisely set and monitor voltage, current, and cumulative ampere-hours. A unique multi-stage digital PID loop ensures that the 12V output maintains absolute regulation even when load resistance fluctuates due to electrolyte temperature changes or bus bar connection resistance.
Key benefits include a compact cabinet design that saves valuable floor space compared to traditional units, a high efficiency rating of >90% across the entire load range, and a built-in soft-start function that eliminates stress on upstream transformers and switchgear. The unit is fully sealed against corrosive copper sulfate mist, with all electronics housed in a forced-air, positive-pressure cabinet.
Part 2 Technical Specifications Table
| Parameter | Specification |
| — | — |
| Input Voltage | 3-Phase, 380V / 480V AC (Optional: 660V / 690V) |
| Output Voltage | 0 – 12V DC (Continuously Adjustable) |
| Output Current | 0 – 5000A DC (Continuously Adjustable) |
| Rated Power | 60 kW |
| Regulation Mode | Constant Current (CC) / Constant Voltage (CV) |
| Cooling Method | Forced Air Cooling (High Dust Filter) |
| Efficiency | ≥ 90% at Full Load |
| Ripple Factor | ≤ 1% (RMS) |
| Control Interface | RS485 Modbus RTU / Ethernet / 4-20mA |
| Protection Class | IP54 (Control Cabinet) |
| Operational Duty | Continuous 24/7 |
Part 3 Advanced Built-in Protection Systems
To safeguard your electrolytic cells and capital equipment, the system features a multi-layered protection architecture. The heavy-duty DC power supply price premium includes active IGBT junction temperature monitoring, instantaneous overcurrent trip with less than 1 microsecond response time, and a digital phase-loss detection circuit. An advanced dry-run detection algorithm prevents the rectifier from operating with empty cells or broken electrolyte feed lines. The cabinet is equipped with a high-temperature alarm that initiates a controlled shutdown profile, preventing thermal runaway without causing an immediate power loss that could damage the cathode quality. These protections are all configurable via the touchscreen interface.
Part 4 Target Industrial Applications
This model is specifically configured for the heavy metallurgical sector. Its primary application is as a high-efficiency power source for copper electrowinning (EW) where it provides the precisely regulated DC necessary for superior cathode quality. It is equally effective in copper electrorefining operations, providing the low-voltage, high-current power required to transfer pure copper from anodes to stainless steel blanks. The unit also excels in copper scrap recycling operations, providing the flexible current control needed to handle varying scrap densities and impurity levels in the electrolyte. The robust design makes it suitable for solvent extraction / electrowinning (SX-EW) plants operating in remote locations with limited technical support.
Part 5 Customization and Tailored Engineering Services
As a leading IGBT rectifier manufacturer, GAOHUI understands that no two tank houses are identical. We provide extensive customization beyond standard parameters. We can deliver a custom current voltage rectifier with output ranges spanning 1V to 1000V and 1A to 100,000A DC for electrolysis. Beyond the basic power module, we engineer full process control systems including:
Process Modules: Integrated Ampere-Minute Integrator for accurate plating thickness, Process Timer for timed constant current steps, Multi-Stage Profile Control for ramping current to suit different plating phases (strike, bulk, finish), and Automatic Reverse Polarity for periodic current reversal to improve cathode quality.
Control Interfaces: Full support for remote operations via RS485 Modbus RTU, standard Ethernet/IP for SCADA integration, and analog 4-20mA interface for existing PLC control systems. We also offer a Pulse Function module with adjustable frequency from 1 to 3000 Hz and adjustable duty cycle for advanced electrowinning processes. A separate Soft-Start module can be provided to limit inrush current to less than 120% of nominal, protecting upstream assets. All custom modules are pre-wired, pre-tested, and configured to your specific process recipe before shipment.