GAOHHI Gold Plating Rectifier (12V 50A) with Pulse Function

Executive Summary
This 12V 50A plating rectifier from GAOHUI redefines precision for jewelry gold finishing and high-end electronic connector plating. Unlike standard low-ripple supplies, this unit leverages pulse current modulation between 1Hz and 3000Hz to break diffusion limits, producing mirror-bright deposits with zero porosity. It bridges the gap between basic bench units and expensive custom lines, delivering industrial-grade stability at a competitive heavy-duty DC power supply price.
Part 1 Key Features & Engineering Highlights
1. Dual-Mode Power Delivery: Switch between pure DC with ripple <1% and pulse plating mode up to 3000Hz. The low-voltage, high-current architecture (12V/50A) is purpose-built for gold bath efficiency.
2. Cast Aluminum Air-Cooled Rectifier: Heavy-duty finned chassis dissipates heat rapidly, enabling 24/7 production use without oil leaks or fan noise typical of liquid-cooled units.
3. Six-Phase SCR / IGBT Hybrid Topology: GAOHUI, as a leading IGBT rectifier manufacturer, merges thyristor reliability with high-frequency IGBT switching for tight voltage regulation (+/-0.5%).
4. Remote Digital Control: Front panel LCD shows real-time Ah, voltage, and current. Standard RS485 Modbus RTU and Ethernet interfaces allow external PLC supervision for automated rack lines.
Part 2 Technical Specifications Table

Part 3 Advanced Built-in Protection Systems
This unit integrates a dual-layer fault management circuit. Layer one monitors instantaneous overcurrent and overtemperature, shunting the IGBT array within 2 milliseconds to protect delicate gold bath chemistry. Layer two performs dry-run detection and phase-loss prevention, safeguarding the rectifier against unstable mains. Open-circuit and short-circuit safe operation is standard, eliminating the need for external fuses in most installations.
Part 4 Target Industrial Applications
1. Jewelry Gold Plating: The 12V supply provides deep penetration for rack and barrel gold baths. Pulse mode at 200-500Hz halves gold consumption for a given thickness versus DC.
2. Electronic Connector Finishing: Consistent 50A peak enables simultaneous plating of hundreds of contacts in a single rack cycle.
3. Small Batch Precious Metal Deposition: Use 4-20mA remote input to slave the rectifier to a robotic hoist system, ideal for silver and palladium black baths.
Part 5 Customization and Tailored Engineering Services
GAOHUI operates as a full-scale industrial high frequency rectifier factory capable of etching custom current voltage rectifier units from 1V-1000V, 1A-100,000A. This model supports optional plug-in modules: Process Timer with automatic shutdown on Ah-limit, six-stage profile control for gradient plating, and Ampere-Minute Integrator for exact deposit tracking. Automatic Reverse Polarity (ARP) is available for stripping passivation cycles. All units include soft-start ramp to prevent electrode shock. For automated lines, retrofit Pulse Functions (1-3000Hz) can be added post-sale. Contact the GAOHUI engineering team to request combined modules like RS485 + pulse + ARP in a single chassis.