GAOHUI Hard Chrome Plating Supply (12V 1500A) Heavy Duty Rectifier

High grit surface finishing demands a power source that doesn’t choke on dense current loads. This GAOHUI 12V 1500A unit is built specifically for tough hard chromium baths where voltage stability and ripple-free waveform determine deposit hardness and crack density. Unlike generic SCR units that degrade with heat, this IGBT-based system delivers an unwavering DC output, cutting energy waste by up to 40% against conventional silicon-controlled rectifiers. For plating shops operating on thin margins, this translates directly to lower operational drag on each production run.
Part 1 Key Features and Engineering Highlights
The core of this unit is a high-speed IGBT switching module, allowing for sub-millisecond response to load changes. This is critical during the initial high-current strike phase of hard chrome plating where voltage sag can ruin adhesion. The unit features a true three-phase AC input (380V±20%, 50Hz) processed through a heavy-duty DC filter that eliminates voltage spikes—a primary cause of nodular deposits and burned edges on parts. The proprietary zero-crossing switching logic ensures soft-start activation, protecting both the rectifier and the workpieces from inrush damage. Thermal management uses a forced-air cooling system with redundant fans and an oversized heatsink, rated for continuous 24/7 operation at full rated load.
Part 2 Technical Specifications Table
| Parameter | Value | Unit / Condition |
| :— | :— | :— |
| Input Voltage | AC 380 | VAC, Three Phase ±20% |
| Input Frequency | 50 / 60 | Hz |
| Output Voltage (Rated) | 12 | VDC, Continuously Adjustable |
| Output Current (Rated) | 1500 | ADC, Continuously Adjustable |
| Output Type | DC | Isolated, Low Ripple ( < 3% rms ) |
| Main Topology | IGBT | Half-Bridge / Full-Bridge H4 |
| Operating Mode | Constant Current / Constant Voltage | Auto Cross-Over with LED Indication |
| Control Interface | 4-20mA Analog, RS485 Modbus RTU, Ethernet | Remote PLC Compatible |
| Cooling Method | Forced Air | Dual Redundant Fans, Temp-Controlled |
| Ingress Protection | IP22 | Ventilated Enclosure for Plating Environment |
| Pulse Function | 1 – 3000 Hz | Duty Cycle 0-100% Adjustable |
Part 3 Advanced Built-in Protection Systems
Standard safety circuits on this model include over-voltage clamp (crowbar), over-current with instantaneous trip, and an overtemperature shutdown with auto-recovery upon cool-down. A dedicated phase-loss detection circuit warns of incoming supply imbalance. For precision hard chrome work where bath chemistry is sensitive, the unit includes an ampere-minute integrator for automatic shutoff at a preset charge. The multi-stage profile control allows programming ramps, hold times, and current steps. An automatic reverse polarity function is available for periodic reverse (PR) cycles to improve deposit distribution on complex geometries.
Part 4 Target Industrial Applications
Specifically engineered for industrial hard chromium electroplating of hydraulic rods, mold tooling, and engine components. The stable low-voltage, high-current DC output is also ideal for copper plating thick deposits on electronics, decorative nickel-chrome finishing, and anodizing aluminum surfaces requiring close tolerance. For zinc or silver plating operations, the built-in pulse functions dramatically improve crystal structure for finer grain deposition.
Part 5 Customization and Tailored Engineering Services
Ordering direct from our industrial high frequency rectifier factory means you avoid the middleman markup. We configure each unit to your exact bus voltage. Standard options include 0-12V DC, 0-15V DC, 0-18V DC, or custom tapped outputs.
FACTORY CUSTOMIZATION RANGE: 1V to 1000V DC, 1A to 100,000A DC. Input remains fixed AC. Output is pure DC.
Modular add-ons include:
– Process Timer (0-9999 minutes with alarm
– Multi-Stage Profile Control (up to 99 steps)
– Ampere-Minute Integrator with batch totalizer
– Automatic Reverse Polarity (cycle time adjustable)
– Soft-Start (programmable ramp from 0 to setpoint in seconds)
– Communication interfaces: RS485 Modbus RTU, Ethernet TCP/IP, 4-20mA analog remote
– Pulse Functions: Forward pulse, Reverse pulse, Unipolar / Bipolar at 1-3000 Hz
To get a firm heavy-duty DC power supply price specific to your tank voltage and surface area, request a quote directly. We are a leading IGBT rectifier manufacturer known for building reliable units that outlast competitive two-stage SCR models. Our engineering team can provide a custom current voltage rectifier to match your existing buswork or automation system. All units carry a full two-year warranty on parts and labor.