Guangzhou, China – Guangzhou Gaohui Power Technology Co., Ltd. offers a high-performance micro-arc oxidation power supply (Micro-arc Oxidation Rectifier), a specialized power source designed for forming ceramic coatings on aluminum, magnesium, titanium and their alloys. Adopting advanced high-frequency pulsed electric field technology, this unit generates dense, high-hardness (1000–3000 HV) ceramic coatings with excellent corrosion resistance and insulation, balancing superior surface treatment performance with energy efficiency. It is the ideal choice for industrial batch production and laboratory R&D in aerospace, medical equipment, deep-sea technology and other high-end fields, helping manufacturers reduce costs while improving product quality.
Why Choose This Micro-arc Oxidation Rectifier
Many industries rely on high-performance light metal components, and aluminum, magnesium, titanium alloys are widely used but require surface strengthening to resist wear and corrosion. Traditional surface treatment methods often result in uneven coatings, high energy consumption and environmental pollution. However, Gaohui’s micro-arc oxidation rectifier adopts a professional design, using stable high-frequency pulsed power to trigger micro-arc discharge, forming a dense ceramic layer that bonds tightly with the metal substrate—no peeling or cracking even in harsh environments. What’s more, the process is environmentally friendly, free of harmful chemicals, and more efficient than traditional electroplating, making it a green and cost-effective solution for modern manufacturers.
“The micro-arc oxidation rectifier is the core of the surface treatment process,” said a company leader. “It delivers precise and stable pulsed power to the workpiece, ensuring the ceramic oxide layer grows uniformly and densely. For this reason, our customers get more durable components with lower production costs, which helps them gain an advantage in the competitive market.”
How This Micro-arc Oxidation Rectifier Works
The process is professional yet straightforward. The micro-arc oxidation rectifier delivers high-frequency pulsed power to the workpiece and electrolyte system, triggering micro-arc discharge between the workpiece (anode) and the counter electrode (cathode). This discharge promotes electrochemical reactions, forming a dense, hard ceramic oxide layer on the metal surface—different from ordinary power supplies, Gaohui’s micro-arc oxidation rectifier provides stable pulsed power, ensuring consistent coating quality and long-term reliable operation with low maintenance. Even in continuous production, it maintains stable performance, avoiding the trouble of frequent adjustments and downtime.
Main Features of This Micro-arc Oxidation Rectifier
Gaohui builds a full range of surface treatment power supplies, suitable for manufacturers of all sizes and serving aerospace, medical, 3C electronics and other industries. The micro-arc oxidation rectifier offers these core benefits:
High Efficiency & Energy Saving
Adopting advanced circuit design and intelligent IGBT components, the rectifier achieves over 90% efficiency, reducing power waste significantly. This energy-saving performance helps users lower monthly electricity costs, and the unit pays for itself over time—especially for large-scale production, the energy-saving effect is more obvious, bringing considerable economic benefits to enterprises.
Precise Parameter Control
It supports switchable constant current/constant voltage modes, with stepless adjustable voltage, current and pulse parameters (frequency 100–3000Hz, duty cycle 5–100%). It fits different workpiece sizes and material types, easily handling both low-voltage and high-voltage pulse requirements, ensuring the ceramic coating meets the technical standards of different industries.
Durable & Stable
Equipped with professional “Three-Proofing” treatment (moisture-proof, mold-proof, salt-spray proof), the unit can operate stably in harsh industrial environments. It has built-in overcurrent, overheating, overvoltage and phase loss protection, ensuring long-term trouble-free operation with a low failure rate, reducing maintenance costs for enterprises.
Full Model Coverage
Available in single-pulse and dual-pulse models, with air-cooled and water-cooled options. Current ranges from 5A to 1000A, voltage up to 750V, matching different production scales—from small laboratories to large industrial production lines, meeting the diverse needs of different customers.
Intelligent Operation
Supports single-segment/multi-segment operation, with 50 process recipes storage and one-click recall. It is equipped with an RS485 communication interface for remote control, real-time operation status indicators and an emergency stop button for safe and convenient operation, reducing the labor intensity of operators.
Customizable Options
A professional technical team provides personalized customization according to customers’ actual processes, production scales and on-site requirements, fully meeting diverse application needs—whether it’s a special process or a specific production scale, Gaohui can provide tailored solutions.
Where to Use This Micro-arc Oxidation Rectifier
This advanced technology serves a wide range of high-end applications, covering multiple industries and scenarios, bringing reliable surface treatment solutions to enterprises:
- Aerospace components: Magnesium alloy corrosion protection and surface strengthening, ensuring components can withstand harsh aerospace environments
- Medical equipment: Titanium alloy surface treatment for biocompatibility, meeting the strict standards of the medical industry for material safety
- Deep-sea technology: Metal component corrosion resistance enhancement, adapting to the high-pressure, high-humidity deep-sea environment
- 3C electronics: Aluminum alloy shell surface hardening, improving the wear resistance and service life of electronic products
- Industrial production: Aluminum profile oxidation coloring and surface strengthening, enhancing the appearance and durability of industrial products
- Laboratory R&D: Ceramic coating preparation and material performance testing, providing reliable support for scientific research experiments
Technical Specifications
Gaohui’s industrial-grade micro-arc oxidation rectifier has flexible optional specifications, with modular and intelligent design, fully meeting the precision requirements of different application scenarios. Detailed technical parameters are as follows:
- Input Voltage: AC 380V ±10%, 50Hz (industrial standard input, strong anti-interference, adapting to unstable power supply environments)
- Operating Mode: Switchable Constant Current/Constant Voltage mode, free adjustment according to process needs, improving the adaptability of the equipment
- Output Waveform: Standard single-pulse waveform; customizable dual-pulse waveform (positive/negative voltage/current independent adjustable), meeting different process requirements
- Output Frequency: 100–3000Hz (customizable, matching different metal oxidation processes, ensuring coating quality)
- Duty Cycle: 5–100% stepless adjustable, precise control of discharge time, optimizing the ceramic layer formation process
- Control Accuracy: Within 1 percent, ensuring stable and consistent coating quality
- Cooling Options: Air-cooled or water-cooled, air-cooled for small and medium models, water-cooled for large models with high power
- Remote Control: RS485 communication interface for easy setup and operation, supporting remote monitoring and control
- Ripple Factor: Less than 3 percent, ensuring stable power output and uniform coating
- Environmental Adaptability: “Three-Proofing” treatment, suitable for high-humidity, corrosive industrial environments
- Protection Functions: Built-in overcurrent, overheating, overvoltage, phase loss protection (not for short-circuit operation), ensuring equipment and operator safety
Green Technology Focus
Gaohui started in 2018, and the team has 27 years of professional experience in power supply R&D and production. The company has always focused on green and efficient surface treatment power supplies, and the micro-arc oxidation rectifier is a key product reflecting this concept. For one thing, it helps the earth by cutting energy use, reducing carbon emissions and complying with global environmental protection trends. For another, it produces ceramic coatings without adding harmful chemicals, meeting strict environmental protection standards of various countries, which is in line with the green development needs of modern industries.
Gaohui sells to more countries than ever, and its product line grows fast each year. Because of this, more manufacturers can enhance light metal components in a green, efficient and cost-effective way, promoting the high-quality development of the surface treatment industry.
About Guangzhou Gaohui Power Technology Co., Ltd.
Gaohui builds power supplies for surface treatment, with uses including micro-arc oxidation, anodizing, and electroplating. The firm holds ISO9001:2015 certificates and meets strict CE safety standards. Over 10,000 firms trust Gaohui goods today, and the company keeps growing each year, committed to providing high-quality, energy-saving and intelligent power supply solutions for global customers.