GAOHUI 750V 200A Unipolar Pulse Rectifier for Plasma Electrolytic Oxidation and Micro-Arc Oxidation Surface Engineering

Key Features & Engineering Highlights
The GAOHUI 750V 200A rectifier is a heavy-duty DC power supply engineered for demanding plasma electrolytic oxidation processes. Its unipolar pulse topology delivers precise energy for advanced ceramic layer formation on lightweight alloys. This industrial high frequency rectifier factory solution ensures stable arc initiation and coating uniformity at a competitive heavy-duty DC power supply price. The IGBT rectifier manufacturer design incorporates forced air cooling and high-voltage isolation for continuous operation. Custom current voltage rectifier options allow seamless integration into existing production lines.

Technical Specifications Table

Advanced Built-in Protection Systems
The unit includes overvoltage, overcurrent, overtemperature, and short-circuit protection. A soft-start ramp-up function prevents electrode damage during initial plasma ignition. Real-time fault logging via the RS485 digital interface enables remote diagnostics for industrial high frequency rectifier factory maintenance teams.

Target Industrial Applications
This rectifier is ideal for hard anodizing of aluminum alloys, electrowinning of reactive metals, precious plating on titanium substrates, and micro-arc oxidation (MAO) for magnesium components. It excels in high voltage spark anodizing to create advanced ceramic layers for lightweight alloy passivation in aerospace and automotive sectors.

Customization and Tailored Engineering Services
GAOHUI offers full customization from 1V-1000V and 1A-100,000A with AC input and DC output only. Optional modules include a Digital Process Timer, Multi-Stage Programmable Profile Control, Ampere-Minute Integrator, Automatic Reverse Polarity, Soft-Start Ramp-Up, and Local/Remote Control via Push-Button or HMI Touch Screen. Interfaces support RS485 Modbus RTU, Ethernet, 4-20mA, and Pulse Functions with 1-100% duty cycle and 1-3000Hz frequency adjustable. All units are built to order at our industrial high frequency rectifier factory.