GAOHUI’s Custom MAO Power Supply is a high-performance specialized power source for forming ceramic coatings on aluminum, magnesium, titanium and their alloys. In particular, it adopts advanced high-frequency pulsed electric field technology to produce dense, high-hardness coatings with great corrosion resistance and insulation.
Furthermore, the power supply supports full customization, with adjustable 0–1000A current, 0–750V voltage and intelligent digital control. Thanks to this flexibility, it can easily match various process requirements for different applications.
Meanwhile, it ensures excellent treatment efficiency while saving energy. As a result, it has become the top choice for industrial production and laboratory R&D in aerospace, medical, and deep-sea technology fields.
| Single Pulse | ||||||
| No. | Model | Forward Current (A) | Forward Voltage (V) | Input Voltage (V) | Cooling Method | W×L×H (mm) |
| 1 | 5A750V | 5 | 750 | 220 | Air-cooled | 290×520×190 |
| 2 | 10A750V | 10 | 750 | 380 | Air-cooled | 510×560×230 |
| 3 | 20A750V | 20 | 750 | 380 | Air-cooled | 560×760×320 |
| 4 | 30A750V | 30 | 750 | 380 | Air-cooled | 560×760×320 |
| 5 | 50A750V | 50 | 750 | 380 | Air-cooled | 520×580×930 |
| 6 | 100A750V | 100 | 750 | 380 | Air-cooled | 580×650×1650 |
| 7 | 200A750V | 200 | 750 | 380 | Water-cooled | 850×1130×1630 |
| 8 | 300A750V | 300 | 750 | 380 | Water-cooled | 800×1270×1700 |
| 9 | 500A750V | 500 | 750 | 380 | Water-cooled | 800×1270×1900 |
| Dual Pulse | ||||||||
| No. | Model | Forward Current (A) | Forward Voltage (V) | Reverse Current (A) | Reverse Voltage (V) | Input Voltage (V) | Cooling Method | Dimensions (mm) |
| 1 | 10A750V | 10 | 750 | 3 | 300 | 380 | Air-cooled | 510×560×230 |
| 2 | 30A750V | 30 | 750 | 10 | 300 | 380 | Air-cooled | 560×760×320 |
| 3 | 50A750V | 50 | 750 | 15 | 300 | 380 | Air-cooled | 520×580×930 |
| 4 | 100A750V | 100 | 750 | 30 | 300 | 380 | Air-cooled | 580×650×1650 |
| 5 | 200A750V | 200 | 750 | 50 | 300 | 380 | Water-cooled | 850×1130×1630 |
| 6 | 300A750V | 300 | 750 | 100 | 300 | 380 | Water-cooled | 800×1270×1700 |
| 7 | 500A750V | 500 | 750 | 150 | 300 | 380 | Water-cooled | 800×1270×1900 |
Power（KW） = Output Voltage（V） × Output Current（A）
The product comes with a one-year warranty and boasts a service life of over 10 years. It supports both Constant Current and Constant Voltage modes, and it also includes a programmable ramp-up function for current or voltage settings. For time-sensitive applications, you can use the timed operation mode. Moreover, the multi-segment function allows you to vary constant current or voltage levels over time. The device further offers an RS485 communication interface, automatic polarity reversal, and a minute-level timing function. If you need customization, please contact us for further details.
Over all, GAOHUI provides complete single-pulse and dual-pulse models with air-cooled and water-cooled options. Accordingly, these units fit different production scales and process requirements.
Shows the peak voltage of the current pulse, a key parameter affecting coating strength.
Displays the average current over the working cycle to monitor reaction stability.
Set total time: Total process duration.
Total running time: Elapsed working time.
Cumulative ampere-minutes: Total current-time value for coating thickness control.
Multi-station ID for managing different workpiece processes.
Indicates disconnection from remote/host system, local control mode.
Constant current mode, the most common for micro-arc oxidation.
Press to immediately terminate the oxidation process.
Process stage: Current running step in multi-step program.
Ramp-up time: Time for voltage/current to rise to set value, avoiding impact.
Peak voltage limit: Maximum pulse voltage to prevent breakdown.
Frequency (Hz): Pulse working frequency, affects coating density.
Current stage: Current process segment number.
Hold time: Duration of current segment.
Average current setting: Target average current value.
Pulse "on" time percentage in one cycle, affects heat input and coating structure.
Button to start or stop the process.
Toggle between CV and CC control modes.
Pause or resume the ongoing process.
Access multi-step program editor for complex recipes.
Choose between single segment or multi-segment process.
Shows currently loaded/running process recipe.
Opens system configuration menu.
Manufacturer/support contact information.
View historical voltage/current trend graphs.
Visualizes real-time/historical voltage/current curve.
Displays the peak current value of the pulse.
Displays the average voltage over the working cycle.
Shows system date and time.
Shows the peak value of the positive pulse voltage.
Displays the average current of the positive pulse over the working cycle.
Shows the average voltage of the positive pulse over the working cycle.
Displays the peak value of the positive pulse current.
Shows the current running process number.
Sets the time for voltage/current to rise slowly from zero to the set value.
Shows the current running segment number in multi-stage processes.
Sets the duration for the current process segment.
Manufacturer/support contact information.
Shows the average voltage of the negative pulse over the working cycle.
Displays the peak value of the negative pulse current.
Shows the peak value of the negative pulse voltage.
Displays the average current of the negative pulse over the working cycle.
Sets the maximum allowed positive pulse voltage to prevent workpiece breakdown.
Sets the target average current value for the positive pulse.
Set total time: Total process duration.
Total running time: Elapsed working time.
Cumulative ampere-minutes: Total current-time value for coating thickness control.
Opens the system configuration menu.
Accesses the multi-step program editor to create complex recipes.
Selects between running a single segment or a multi-segment process.
Displays the currently loaded or running process recipe.
Temporarily pauses or resumes the ongoing process.
Toggles between constant voltage and constant current control modes.
Multi-station ID for managing different workpiece processes.
Indicates disconnection from the remote/host system, local control mode.
Current operating mode: constant current control.
Press to immediately terminate the oxidation process.
Positive: Pulse frequency, duty cycle, number of pulses.
Negative: Pulse frequency, duty cycle, number of pulses.
Main button to start or stop the entire process.
By adjusting parameters, you can achieve diverse ceramic coating colors. Our power supply supports multiple color finishes for different alloys to meet both aesthetic and functional needs. For instance, common colors include black, white, blue, yellow, green, purple, champagne and bronze.
| Color | Aluminum Alloy | Magnesium Alloy | Titanium Alloy |
| Black | ✔ | ✔ | ✔ |
| White | ✔ | ✔ | ✔ |
| Blue | ✔ | - | ✔ |
| Obsidian Blue | - | - | ✔ |
| Clear Blue | - | - | ✔ |
| Yellow | ✔ | ✔ | ✔ |
| Champagne | - | ✔ | - |
| Bronze | - | ✔ | ✔ |
| Green | - | - | ✔ |
| Purple | ✔ | - | - |
To begin with, our custom MAO power supply stands out with industry-leading features that meet strict modern production demands. In addition, each function is designed to improve stability, efficiency, and ease of use.
We offer unipolar pulse, bipolar pulse, and adjustable pulse modes. As a result, this flexibility makes the power supply suitable for micro-arc oxidation of different alloys and specialized surface treatment processes.
We use a robust industrial structure (dustproof, waterproof, anti-corrosion optional). Consequently, the power supply works stably even in harsh industrial environments and reduces maintenance costs.
It includes overcurrent, overvoltage, overheat, and phase loss protection. In this way, the system effectively prevents equipment damage and ensures safe continuous operation.
It supports standard RS485 communication and remote monitoring. Therefore, users can easily control and monitor the power supply remotely, greatly improving production efficiency.
We use industrial-grade components and a stable structure. For this reason, the power supply achieves a long service life and lowers long-term replacement costs.
Compared with other MAO power supplies on the market, our custom MAO power supply provides clear advantages that help reduce costs and improve productivity.
It ensures uniform ceramic film and consistent product quality. In turn, stable output avoids defects caused by power fluctuations and reduces material waste.
It uses a high-efficiency circuit design to lower operating costs. Over time, this energy-saving structure saves considerable electricity expenses during long-term production.
It comes with a user-friendly PLC touch screen interface and automatic control functions. Even new operators can master the system quickly, which reduces training time and costs.
We provide tailored solutions for different MAO processes. In other words, we can adjust current, voltage, and functions to fully match your production needs.
We offer 24/7 technical support and after-sales service. Whenever problems occur, our professional team responds promptly to ensure uninterrupted production.
Across multiple industries, our power supply delivers high-performance surface treatment. Specifically, it is widely used in alloy ceramic coating, functional anodic oxide film, chemical conversion film treatment, and military special plating. Therefore, it provides stable power support for automotive, aerospace, medical, marine and electronic fields.
We are a professional manufacturer with 25+ years of experience in surface treatment power supply solutions. We have rich experience in researching, developing, and producing custom MAO power supplies, and we have won the trust of customers around the world. Our factory is equipped with advanced production equipment and testing instruments, which ensures the quality of each custom MAO power supply.
We provide a complete product range from 30A to 1000A, covering various models of custom MAO power supplies. Additionally, our team can provide custom design according to your specific process requirements, ensuring the product perfectly matches your production line. In addition to fast delivery and global shipping services, our CE, ISO, and other international certifications ensure our products meet international standards.
Our professional technical team and after-sales service provide 24/7 support and solve your problems in use in a timely manner. Therefore, choosing our custom MAO power supply means choosing a reliable partner for your surface treatment production line.
If you need a custom MAO power supply with specific current, voltage, or function, please send us your detailed requirements.
Learn more about related products:Hard Anodizing Rectifier
A: Products with the same nominal specifications often serve different industries, and they may carry different detailed parameter requirements. These differences directly affect production costs and technical solutions, so final prices will vary accordingly. For this reason, we recommend you contact us directly to receive a precise and tailored quotation.
A: We assign specialized consultants to support each industry sector. If you need further information, simply reach out to us. After we confirm your request, we will immediately send you the full technical datasheets and product images you need.
A: We focus on custom non-standard industrial power supplies, so we can fully adjust output current and voltage to match your exact needs. The products shown on our website only represent part of our actual range, as we do not list every model online. If you cannot find your desired specifications, please contact us directly. We will work with you to confirm your exact requirements, or we can guide you to select the most suitable parameters based on your industry standards. We will provide complete technical specifications and dimension drawings so you can fully understand the product.
