GAOHUI Heavy Duty Plating Power Supply (12V 300A) for Precious Metal Plating

Executive Summary
Designed for the most demanding surface finishing operations, the GAOHUI 12V 300A rectifier is a precision-engineered DC power source specifically for precious metal plating, including gold, silver, and rhodium. This unit combines lab-grade current stability with the rugged reliability of an industrial high frequency rectifier factory, ensuring flawless deposition and zero rejects. If you are comparing a heavy-duty DC power supply price, understand that this model delivers the low-ripple output and tight regulation typically reserved for laboratory precision rectifier applications, but at a commercial scale. It is the definitive choice for maintaining a pristine tank environment and superior adhesion cycles.
Part 1 Key Features & Engineering Highlights
Advanced IGBT Technology: As a premier IGBT rectifier manufacturer, GAOHUI utilizes high-speed switching transistors to achieve over 92% conversion efficiency, reducing energy waste and heat generation in the shop.
High-Precision Regulation: True Constant Current (CC) and Constant Voltage (CV) modes with automatic crossover. Ripple is maintained below 1% RMS (0.3% optional) to prevent burning and ensure even layer distribution in your rhodium plating tank.
Ultra-Compact Form Factor: Compared to old-school SCR units, this 300A rectifier occupies 70% less floor space. It includes a built-in current sharing bus for parallel operation when expanding capacity.
Custom current voltage rectifier capabilities are built into the firmware; voltage and current are digitally programmed via encoder knob or remote signal, not crude potentiometers.
Part 2 Technical Specifications
| Parameter | Specification | Notes |
| — | — | — |
| Output Voltage | 0-12V DC | Fully adjustable continuous |
| Output Current | 0-300A DC | Fully adjustable continuous |
| Input Supply | 220V AC ±15% (Single Phase) | 1-PE+N |
| AC Current Max | 20A | Peak at full load |
| Output Ripple | ≤ 1% (rms) | < 0.3% optional |
| Regulation Load | ≤ 0.5% | CC/CV modes |
| Cooling Method | Forced Air (Intelligent Fan) | Duty cycle: 100% |
| Display | 3-Digit Digital Meter (V/A) | High-brightness LED |
| Control Interface | RS485 Modbus RTU (Default) | Ethernet / 4-20mA optional |
| Environmental | 0-40°C, 90% RH non-condensing | IP21 rated |
Part 3 Advanced Built-in Protection Systems
Operational security is non-negotiable. This unit features a multi-layer safeguard architecture that prevents equipment failure and process damage:
Short Circuit Protection: Instant shutdown with auto-recovery logic.
Over Temperature Protection: Triac-controlled fan with thermal derating.
Missing Phase Detection: Prevents dry-run damage on three-phase inputs.
Soft-Start Function: Limits inrush current to less than 100% of nominal, preventing breaker trips.
Part 4 Target Industrial Applications
The GAOHUI 12V 300A rectifier is the optimal solution for the following specific high-precision bath chemistries:
Precious Metal Electroplating: Gold plating, silver plating, rhodium plating tank applications requiring dense, non-porous deposits.
Industrial Chrome & Nickel: Bright and hard chrome plating for hydraulic rods and decorative surfaces.
Platinum Plating: For electrode manufacturing and medical device coating, where absolute purity is required.
Laboratory Precision Rectifier: Utilized in R&D facilities for process qualification of new bath formulations before scale-up.
Part 5 Customization and Tailored Engineering Services
GAOHUI treats every unit as a semi-custom platform. We can engineer any parameter between 1V-1000V DC and 1A-100,000A DC, operating on standard AC input to produce regulated DC output only.
We offer a range of modular enhancements to automate your tank line:
Process Timer: Cycle control for consistent dwell times.
Multi-Stage Profile Control: Ramp up, hold, and ramp down for complex parts.
Ampere-Minute Integrator: Track precise material deposit (gold, silver) for compliance.
Automatic Reverse Polarity (ARP): Reduces burning and improves hole throwing power for PCB plating.
Pulse Functions: Frequency adjustable from 1Hz to 3000Hz for pulse and pulse-reverse plating, improving grain structure.
Remote Interfaces: RS485 Modbus RTU, Ethernet IP, and 4-20mA analog control for full PLC integration.
Contact our engineering team today to configure your process-specific power supply.