Key Features
– High-precision 100V output voltage and 300A output current, specifically engineered for plasma electrolytic oxidation (micro-arc oxidation) of aluminum, titanium, magnesium, and their alloys.
– Advanced IGBT/PWM inverter technology ensures stable arc ignition, uniform coating density, and minimal ripple for superior oxide-ceramic layer quality.
– CE certified and compliant with international safety standards, designed for 24/7 continuous industrial operation in aerospace, automotive, and surface engineering sectors.
– Integrated RS485 digital interface (Modbus RTU) for seamless PLC and SCADA integration, enabling real-time monitoring and data logging.
– Robust construction with forced air cooling, high-efficiency transformers, and durable aluminum enclosures for harsh workshop environments.
Technical Specifications
| Model | GH-PEO-100300 |
| Input Voltage | 3-Phase 380VAC ±10%, 50/60Hz |
| Output Voltage | 0-100V DC (continuously adjustable) |
| Output Current | 0-300A DC (continuously adjustable) |
| Output Ripple | Less than 5% at rated load |
| Efficiency | Greater than 90% at full load |
| Control Method | IGBT/PWM with closed-loop feedback |
| Communication Interface | RS485 Modbus RTU, Ethernet, 4-20mA analog |
| Pulse Function | 1-100% duty cycle, 1-3000Hz frequency adjustable |
| Cooling Method | Forced air cooling (internal fans) |
| Protection Class | IP20 (indoor use) |
| Dimensions (W x D x H) | 600mm x 500mm x 900mm |
| Weight | Approximately 85 kg |
Built-in Protection Systems
– Overvoltage protection (OVP) with automatic shutdown at 110% of rated output
– Overcurrent protection (OCP) with fast-acting circuit breaker
– Over-temperature protection (OTP) with thermal sensor and fan speed control
– Short circuit protection (SCP) with auto-recovery
– Phase loss and input under-voltage protection
– Soft-start ramp-up to prevent inrush current and electrode damage
Main Applications
– Plasma electrolytic oxidation (PEO) / micro-arc oxidation (MAO) of aluminum, titanium, magnesium, and their alloys for aerospace and automotive components
– Surface hardening and corrosion-resistant coating on medical implants, engine parts, and structural metals
– Anodizing and electrochemical treatment of light metals in industrial batch processes
– Research and development of advanced ceramic-oxide coatings for wear resistance and thermal barrier applications
Customization and Tailored Engineering Services
GAOHUI offers full custom engineering for AC-DC power supplies with voltage range from 1V to 1000V and current range from 1A to 100,000A. Our factory can integrate advanced functions including Digital Process Timer for precise cycle control, Multi-Stage Programmable Profile Control for multi-step voltage/current ramps, Ampere-Minute Integrator for charge-based process termination, Automatic Reverse Polarity for cleaning cycles, and Soft-Start Ramp-Up for gentle electrode activation. Local/Remote Control is available via Push-Button or HMI Touch Screen. Communication Interfaces include RS485 Modbus RTU, Ethernet, and 4-20mA analog. Pulse Functions support 1-100% duty cycle and 1-3000Hz frequency adjustable. All custom units undergo rigorous burn-in testing and come with full technical documentation and warranty.
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