Over the past decades, electroplating and water treatment technologies have seen major advancements, including the development of specialized anodes. One significant breakthrough is the MMO (Mixed Metal Oxide) anode – a mixed metal oxide anode that is gradually replacing traditional electrodes such as lead, graphite, or carbon anodes. In Vietnam, PMAC is the official distributor of high-quality MMO anodes, ensuring clear origin, precise technical specifications, and on-site technical support.
1. What is an MMO Coating Mesh?
MMO anodes are made by coating a substrate (typically titanium) with a layer of mixed metal oxides. This coating may include oxides such as ruthenium oxide, iridium oxide, tantalum oxide, platinum oxide, etc., depending on the specific electrochemical requirements of the application.
This oxide layer gives MMO anodes superior electrochemical properties, improving plating performance, extending electrolyte life, and reducing environmental impact.
With exceptional performance, long service life, and the ability to operate in harsh electrolytic environments, MMO anodes are widely trusted in industries such as manufacturing, jewelry, water treatment, and electroplating.
2. Outstanding Features of MMO Anodes
2.1. Shape Stability
Unlike traditional anodes that deteriorate over time, MMO anodes maintain their original shape, resist corrosion, and produce no sludge, ensuring stable electrolysis performance with minimal maintenance.
2.2. Reliable Performance in Harsh Environments
MMO anodes perform effectively in various electrolytic environments—from alkaline and mild acids to strong acids—making them suitable for numerous industrial applications.
2.3. Customizable Design
MMO mesh can be fabricated into various shapes such as plates, rods, mesh, tubes, or customized to specific system designs. This versatility makes it ideal for both industrial water treatment systems and complex electroplating tanks.
3. Superior Advantages of MMO Coating Mesh
3.1. Reduced Organic Additive Consumption
Thanks to its low oxygen evolution potential, MMO anodes minimize oxidation of organic additives in the plating solution, resulting in lower operating costs and extended electrolyte life.
3.2. Operates at High Current Densities
MMO anodes can withstand high current densities while maintaining stable electrochemical performance, making them ideal for high-demand, continuous plating operations.
3.3. Enhanced Efficiency and Durability
With excellent electrochemical durability and no material loss, MMO anodes lower replacement and maintenance costs, minimizing downtime. Lifespans can reach thousands of continuous operation hours.
3.4. Uniform Coating Distribution
The stable active surface ensures even metal deposition, reducing issues such as burning or uneven buildup—crucial for high-precision, high-aesthetic plating products.
3.5. No Anode Sludge Generation
Unlike lead or graphite anodes, MMO anodes produce no sludge, keeping the plating solution clean and reducing the need for frequent filtration or replacement.
4. Practical Applications of MMO Coating Mesh
4.1. In Industrial Electroplating
MMO anodes are especially effective for plating from sensitive solutions, such as:
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Gold plating
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Silver plating
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Rhodium plating
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Copper-tin (bronze) plating
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Nickel and nickel alloy plating
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Zinc and zinc alloy plating in alkaline environments
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Palladium and Pd/Ni alloy plating
Their compatibility with electrolytes containing halogens, cyanides, or ammonia makes MMO anodes an ideal choice for even the most demanding plating processes.
4.2. In Water Treatment
Beyond electroplating, MMO anodes are effectively used in drinking water and pool water treatment, offering excellent corrosion resistance, gas evolution, and no generation of harmful by-products.
5. MMO Anode Types by Application Code
| Application | Code |
|---|---|
| Ruthenium electrolysis, strong acid | 177 |
| Platinum electrolysis, strong acid | 177 |
| Rhodium electrolysis, strong acid | 177 |
| Gold electrolysis, strong acid | 177 |
| Gold electrolysis, mild acid | 147 |
| Gold electrolysis, alkaline | 147 |
| Bronze (Cu/Sn) electrolysis, cyanide-alkaline | 167 |
| Silver electrolysis, cyanide-alkaline | 167 |
| Copper electrolysis, acid | 187 SO, 177 |
| Halogen-containing electrolysis | 177 |
| Decorative Cr3+ electrolysis | 187 LOC |
| Zinc/Zinc alloy electrolysis, alkaline | 177, 187 LOC |
| Palladium and Pd/Ni alloy electrolysis, ammonia | 187 SO |
| Pd/Ni alloy electrolysis without ammonia/chloride | 187 SO |
| Nickel/Nickel alloy electrolysis | 177, 187 LOC |
| Drinking water treatment | 197 |
| Pool water treatment | 197 |
This classification helps users choose the right type of MMO anode according to the electrolyte and operational environment, ensuring optimal electrolysis performance.
6. Why You Should Invest in MMO Coating Mesh for Your System
6.1. Long-Term Cost Savings
While the initial investment may be higher than traditional anodes, MMO anodes deliver long-term returns thanks to their extended lifespan, energy efficiency, and low maintenance requirements.
6.2. Environmentally Compliant
MMO anodes do not generate hazardous waste, supporting compliance with strict environmental regulations in modern industries.
6.3. Optimized for Automation
With high stability, durability, and consistent performance, MMO anodes are perfect for automated electroplating systems and large-scale continuous production lines.
This article from PMAC introduces MMO coating mesh – a mixed metal oxide anode – not only as a highly effective technical solution but also as a sustainable, economical choice in electroplating and water treatment.
If you’re looking for a stable, efficient, and cost-effective anode solution, MMO mesh is the option you shouldn’t overlook.
As the official distributor of MMO anodes, PMAC is committed to providing the most effective electrode solutions, from products to technical services.
Whether you are a jewelry manufacturer, an electroplating company, or an industrial water treatment facility – we have the right electrode solution to meet your specific needs.