Top Micro Arc Oxidation Machine Manufacturer in China

CHINA-MADE Micro Arc Oxidation Machines | Advanced Surface Treatment Solutions for Durable Coatings

The Micro Arc Oxidation (MAO) Machine is a cutting-edge piece of oxidation equipment designed for surface treatment of metals such as aluminum, magnesium, and titanium. Utilizing a high-voltage plasma-assisted process, it creates a durable, corrosion-resistant ceramic oxide layer on the material surface. This technology is widely applied in industries like aerospace, automotive, and biomedical engineering for enhancing wear resistance and extending component lifespan.

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What is Micro Arc Oxidation?

Micro Arc Oxidation (MAO), also known as plasma electrolytic oxidation, is an advanced surface treatment process used by a Micro Arc Oxidation Machine to enhance metal durability. It applies high-voltage electric fields in an electrolyte bath, creating micro-arc discharges that form a hard, ceramic-like oxide layer on metals like aluminum, titanium, or magnesium. This layer improves corrosion resistance, wear resistance, and thermal stability, making it ideal for aerospace, automotive, and biomedical applications.

Unparalleled Micro-arc Oxidation Machine Durability Program

Our Micro Arc Oxidation Machine delivers exceptional corrosion resistance for your metal components. We offer personalized coating solutions, ensuring your parts withstand harsh environments, with expert support every step of the way.

Micro Arc Oxidation Machine Specifications

The Micro Arc Oxidation Machine is a versatile surface treatment solution designed for metals like aluminum, magnesium, and titanium. It features a robust PLC-controlled system with customizable voltage and coating thickness, ensuring precision in creating durable, corrosion-resistant ceramic layers. With a high-hardness coating capability and efficient cooling systems, this machine delivers reliable performance for enhancing material longevity and thermal stability in demanding applications.

Parameter	Details
Product Name	Micro Arc Oxidation Machine
Voltage Range	200-800V
Current Density	1-10 A/dm²
Processing Time	10-60 minutes
Coating Thickness	Up to 200 μm
Tank Material	PP / SS316L
Weight (KG)	1000
Origin	Shandong, China
Brand Name	Wenbo

Attribute	Details
Applicable Industries	Aerospace, Automotive, Biomedical
Material Compatibility	Aluminum, Magnesium, Titanium
Coating Hardness	1000-2000 HV
Corrosion Resistance	Enhanced for harsh environments
Thermal Stability	Up to 1000°C
Application Type	Wear-resistant coatings, Insulation layers
Environmental Impact	Eco-friendly, low waste
Certification	ISO 9001

Feature	Details
Operation Mode	PLC, Automatic/Semi-automatic
Control System	Touchscreen interface
Cooling System	Rectifiers, Filter Tank Chiller
Heating Method	Electric
Safety Features	Overload protection, Emergency stop
Customization	Adjustable voltage, Coating thickness
Maintenance	Easy access for cleaning

Wenbo Micro Arc Oxidation Machine Service Solution

Wenbo’s Micro Arc Oxidation Machine offers superior surface treatment, creating coatings up to 200 μm thick with 1000-2000 HV hardness. Operating at 200-800V, it ensures corrosion resistance for aerospace and automotive parts. With PLC automation and eco-friendly processes, Wenbo delivers customized, durable solutions, enhancing material lifespan and thermal stability up to 1000°C, all backed by ISO 9001 certification.

Customizable Voltage

Adjustable 200-800V settings for tailored coating processes.

User-Friendly Operation

PLC and touchscreen interface for easy, automated control.

High Durability Coatings

Produces 1000-2000 HV hard, corrosion-resistant layers.

Multifunctional Applications

Supports aerospace, automotive, and biomedical surface treatments.

Eco-Friendly Design

Low-waste process with minimal environmental impact.

Flexible Processing Time

10-60 minutes for varying coating thickness needs.

Micro Arc Oxidation Machine Process: Electrolysis to Passivation - Wenbo

Material Selection

Purpose: Ensure compatibility with the MAO process for optimal coating results.
Method: Choose metals like aluminum, magnesium, or titanium, inspecting for surface defects or impurities.

Surface Cleaning

Purpose: Remove contaminants to enhance coating adhesion and quality.
Method: Use alkaline or acidic cleaning solutions, followed by rinsing with deionized water to eliminate grease and dirt.

Fixture Setup

Purpose: Secure the workpiece for uniform exposure during the process.
Method: Mount the metal piece on a conductive fixture, ensuring proper electrical contact and stability.

Electrolyte Preparation

Purpose: Create a suitable medium for micro-arc discharges to form the oxide layer.
Method: Mix an alkaline electrolyte solution (e.g., silicate-based) in the tank, maintaining pH and temperature as specified.

Tank Filling

Purpose: Provide a stable environment for the electrolysis process.
Method: Fill the PP/SS316L tank with the prepared electrolyte, ensuring the level covers the workpiece completely.

System Calibration

Purpose: Optimize machine settings for the specific material and desired coating.
Method: Adjust voltage (200-800V) and current density (1-10 A/dm²) via the PLC touchscreen interface.

Workpiece Immersion

Purpose: Position the metal for effective micro-arc oxidation.
Method: Submerge the workpiece in the electrolyte, ensuring no air bubbles are trapped on the surface.

Power Activation

Purpose: Initiate the electrolysis process to start oxide layer formation.
Method: Turn on the machine, applying a high-voltage current to create micro-arc discharges on the metal surface.

Micro-Arc Discharge

Purpose: Form a ceramic oxide layer through plasma-assisted reactions.
Method: Maintain discharges for 10-60 minutes, allowing micro-arcs to oxidize the surface into a hard coating.

Temperature Monitoring

Purpose: Prevent overheating to ensure coating uniformity and machine safety.
Method: Use the rectifier and filter tank chiller to keep the electrolyte temperature below 50°C during operation.

Coating Thickness Control

Purpose: Achieve the desired coating thickness for specific applications.
Method: Monitor the process duration and adjust settings to reach up to 200 μm, checking with a thickness gauge.

Process Completion

Purpose: Finalize the oxide layer formation and prepare for passivation.
Method: Gradually reduce voltage, stop the machine, and allow the workpiece to cool in the electrolyte for 5 minutes.

Passivation Treatment

Purpose: Enhance corrosion resistance and stabilize the oxide layer.
Method: Rinse the workpiece with deionized water, then apply a sealing agent to fill micro-pores in the coating.

Quality Inspection

Purpose: Verify the coating meets industry standards for durability and performance.
Method: Test for hardness (1000-2000 HV), adhesion, and corrosion resistance, ensuring compliance with ISO 9001 standards.

Details And Finished Products Of Micro Arc Oxidation Machine

Client Success Stories

A leading aerospace manufacturer used our Micro Arc Oxidation Machine to coat titanium parts, achieving a 200 μm thick, 1500 HV hard layer. This enhanced corrosion resistance, extending component lifespan by 30% in extreme conditions.

An automotive supplier applied our MAO technology on aluminum components, creating a 1000 HV coating. The process, completed in 20 minutes at 500V, improved wear resistance, reducing maintenance costs by 25% for their clients.

A biomedical device producer utilized our MAO machine for magnesium implants, forming a 50 μm biocompatible coating. With 800V settings, the coating ensured thermal stability up to 1000°C, improving implant durability by 40%.

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What is a Micro Arc Oxidation Machine?

A Micro Arc Oxidation (MAO) Machine is a surface treatment device that uses high-voltage plasma to create a ceramic oxide layer on metals like aluminum, magnesium, or titanium, enhancing durability and corrosion resistance.

What materials can be processed with an MAO Machine?

MAO Machines are compatible with lightweight metals such as aluminum, magnesium, and titanium, commonly used in aerospace, automotive, and biomedical industries for their excellent coating results.

How does the Micro Arc Oxidation process work?

The process involves immersing the metal in an electrolyte bath and applying high voltage (200-800V) to generate micro-arc discharges, forming a hard, protective oxide layer through plasma-assisted reactions.

What are the benefits of using an MAO Machine?

MAO Machines produce coatings with high hardness (1000-2000 HV), excellent corrosion and wear resistance, and thermal stability (up to 1000°C), while being eco-friendly with minimal waste production.

What industries benefit from Micro Arc Oxidation technology?

Industries like aerospace, automotive, biomedical, and electronics benefit from MAO technology, as it enhances component longevity, reduces maintenance, and provides biocompatible coatings for medical implants.

How long does the MAO process take?

The process typically takes 10-60 minutes, depending on the desired coating thickness (up to 200 μm) and the specific voltage and current settings used during operation.