Plasma Electropolishing Power Source 500V 50A GAOHUI IGBT Rectifier Manufacturer

Executive Summary
This is not a conventional rectifier. Our Plasma Electropolishing Power Source represents a leap in electrolytic surface treatment technology, engineered by GAOHUI, a leading industrial high frequency rectifier factory. Designed specifically for high-precision anodic dissolution, this unit delivers 500V at 50A with a ripple-free, pulse-stable DC output that plasma and electrolytic polishing processes demand. It replaces outdated, inefficient transformer-based systems with a digitally controlled, high-frequency IGBT topology that eliminates surface burning while delivering a mirror-like finish on stainless steel, titanium, titanium alloys, and cobalt-chrome components. You are looking at a heavy-duty DC power supply price that reflects unmatched reliability and process repeatability.
Part 1 Key Features and Engineering Highlights
Our engineering team, recognized as a premier IGBT rectifier manufacturer, has fused advanced high-frequency switching with a proprietary energy recovery bypass to achieve clean, ultra-low ripple DC (< 1% RMS). The unit operates in both Constant Voltage (CV) and Constant Current (CC) regulation modes with automated cross-over for optimal plasma electro-polishing arc management. It delivers a stable waveform up to 3000Hz pulse frequency, critical for preventing hydrogen embrittlement and improving micro-roughness values. The air-cooled architecture eliminates coolant leak risks and reduces maintenance overhead in harsh plating environments. GAOHUI designs guarantee a 15-year fan life and 92% peak efficiency.
Part 2 Technical Specifications Table
| Parameter | Specification |
| :— | :— |
| Model | GH-PEP-50050 |
| Input Voltage (AC) | 380V ± 10% / 415V / 480V 3-Phase |
| Output Voltage | 0 to 500V DC (Continuously Adjustable) |
| Output Current | 0 to 50A DC (Continuously Adjustable) |
| Rated Power | 25kW |
| Output Type | Single Pole Positive Polarity (for Anodic Dissolution) |
| Regulation Mode | CV / CC with Automatic Cross-over |
| Ripple Noise | < 1% RMS full load |
| Pulse Frequency Range | 1Hz – 3000Hz Adjustable |
| Pulse Duty Cycle | 1% – 99% Adjustable |
| Cooling Method | Forced Air |
| Operating Frequency | 16kHz – 20kHz (Resonant Converter) |
| Protection Class | IP31 (Indoor Use) |
| Dimensions (W x D x H) | 550mm x 650mm x 900mm |
| Net Weight | 85 kg |
Part 3 Advanced Built-in Protection Systems
This unit incorporates a multi-stage safety architecture designed for unmanned operation. The protection suite includes Input Over / Under Voltage Lockout, Output Short Circuit, Overload (Constant Current Limiting), Over Temperature +85°C (Derating & Thermal Shutdown), Reverse Polarity Prevention, and Arc Detection with Instantaneous Current Foldback. A fast-blow semiconductor fuse isolates internal IGBT modules during catastrophic fault events. The front panel features a dedicated emergency stop with mechanical latch for OSHA compliance.
Part 4 Target Industrial Applications
This power source is purpose-built for the plasma eco-polishing electrolytic surface treatment process. Primary applications include batch polishing of medical implants (knee, hip, and spinal implants), aerospace fuel nozzles and compressor blades, surgical instruments, 3D printed titanium parts requiring deburring and surface smoothing, and micro-finishing of dental prostheses. The adjustable pulse profile allows simultaneous deburring and polishing with a single bath, reducing cycle time by up to 40% compared to DC-only systems.
Part 5 Customization and Tailored Engineering Services
GAOHUI recognizes one size does not fit all. As a factory, we offer full bespoke engineering across a voltage range of 1V-1000V and a current range of 1A-100,000A. Input can be single or three-phase AC, 50/60Hz. Output is strictly DC. We integrate modular process control options including a Process Timer (0-9999 seconds), a Multi-Stage Profile Controller (up to 8 voltage/current ramps), a Digital Ampere-Minute Integrator for precise charge dosing, and Automatic Reverse Polarity for periodic surface activation. Standard communication interfaces include RS485 Modbus RTU, Ethernet TCP/IP, and isolated 4-20mA or 0-10V analog ports. Our engineers can outfit your unit with a Pulse Generator running 1-3000Hz with adjustable duty cycle for advanced micro-arc smoothing. Tell us your electrolyte chemistry and surface geometry; we will deliver a custom current voltage rectifier that meets your exact cycle spec. Lead time for custom builds averages 45-60 days with full CE and TUV compliance certification.