MMO-Coated Titanium Anodes for Cathodic Protection: Simple, Reliable, and Durable

Industries such as marine engineering, pipelines, storage tanks, and underground structures operate in harsh environments. MMO-coated titanium anodes for cathodic protection offer a solution to this challenge.

MMO stands for Mixed Metal Oxide. These anodes are made of titanium metal and coated with a special metal oxide, such as ruthenium, iridium, or tantalum.

Titanium = Robust Substrate

MMO Coating = Active Working Layer

The combination of these two forms an anode with the following properties:

High Electrical Conductivity

Corrosion Resistance

Long Service Life

In cathodic protection systems, MMO-coated titanium anodes prevent corrosion by controlling the current flowing through the metal structure.

The anode can withstand the "load" and protect the structure, preventing corrosion of pipelines, storage tanks, or ships.

Why Choose MMO-Coated Titanium Anodes for Cathodic Protection?

1. Long Service Life

Compared to traditional materials such as graphite or high-silicon iron:

MMO-coated titanium anodes have a service life of 15-25 years or even longer.

A stable coating means a low loss rate.

Lower long-term replacement costs.

Ideal choice for long-term cathodic protection systems.

2. Strong Corrosion Resistance

Titanium itself is corrosion-resistant. Adding an MMO coating provides:

Excellent seawater performance

Stable operation in soil and underground environments

Resistance to acid and alkali corrosion

3. High Current Efficiency

These anodes operate efficiently even at low voltages:

Lower energy consumption

Stable current output

Greater protection range

This translates to lower system operating costs.

4. Flexible Design and Customization

MMO-coated titanium anodes are available in various forms:

Rod anode

Tube anode

Mesh anode

Strip anode

Wire anode

You can customize:

Length and diameter

Coating type

Current density

Installation method

Perfect for complex engineering projects

Materials and Manufacturing Process

Substrate: Grade 1 titanium

High-purity titanium

Excellent mechanical strength

Lightweight and high-strength

MMO Coating Process

Coating is performed using advanced thermal decomposition technology:

Surface cleaning and pretreatment

Coating solution

High-temperature sintering

Multiple coating cycles to ensure durability

This process ensures:

Strong adhesion

Uniform coating thickness

Long service life

Applications of MMO-coated titanium anodes in cathodic protection:

1. Marine and offshore structures

Applications:

Ships and hulls

Offshore platforms

Seawater pipelines

Port facilities

Advantages:

Capable of withstanding high-salt environments

Provides long-term, stable protection

2. Oil and gas pipelines

Underground and subsea pipelines require continuous protection.

MMO-coated titanium anodes:

Prevent external corrosion

Extend pipeline life

Reduce maintenance costs

3. Storage tanks

Applications:

Fuel tanks

Water tanks

Chemical storage systems

Advantages:

Internal and external corrosion protection

Excellent performance in immersion environments

4. Reinforced concrete structures

Application areas:

Bridges

Parking lots

Coastal buildings

MMO anodes help to:

Protect reinforcing steel

Prevent corrosion-induced cracking

5. Water treatment systems

Ideal applications:

Seawater desalination plants

Wastewater treatment

Coating water systems

Advantages:

Resistant to chemical corrosion

Reliable current distribution

Product Specifications Overview

Typical specifications include:

Current density: 10–100 A/m²

Coating type: Ru-Ir, Ir-Ta, Pt-based (optional)

Shape options: Rod, mesh, strip, tubular

Designed service life: 10-30 years

All specifications can be customized to your project.

Quality and Safety Advantages

Strict Quality Control

Raw Material Inspection

Coating Thickness Testing

Adhesion Testing

Electrochemical Performance Testing

Each MMO-coated titanium anode is tested before delivery.

Stable Performance

Uniform Current Distribution

No Sudden Failures

Predictable Service Life

Environmentally Friendly

No Heavy Metal Pollution

Low Energy Consumption

Safe for Long-Term Use

Manufacturing Strength and Company Advantages

Advanced Production Equipment

Our factory is equipped with:

Automated Coating Production Line

High-Temperature Sintering Furnace

Precision Machining Equipment

Ensuring Consistent Product Quality.

Strong Technical Team

Experienced Electrochemical Engineers

Professional R&D Department

Continuous Product Innovation

Certification and Management System

We adhere to stringent standards:

ISO Quality Management System

Full Production Traceability

Standardized Testing Processes

Customized Engineering Support

We not only sell products, but also provide solutions:

Cathodic Protection System Design

Anode Layout Calculation

Installation Guidance

After-Sales Technical Support

Why MMO-Coated Titanium Anodes are a Wise Investment

Factor	Traditional Anodes	MMO Titanium Anodes
Lifespan	Short	Very long
Maintenance	Frequent	Minimal
Efficiency	Lower	High
Cost over time	High	Lower

Traditional Anodes vs. MMO Titanium Anodes

Lifespan: Short vs. Long

Maintenance: Frequent vs. Minimal

Efficiency: Low vs. High

Long-Term Cost: High vs. Low

Upfront investment may be higher, but in the long run, you will save more.

Typical Project Case

A coastal pipeline project requires long-term corrosion protection.

Solution:

MMO-coated titanium tube anodes

Customized current output

Installed in an impressed current system

Results:

Stable operation for over 10 years

No major maintenance required

Significant cost savings

Installation and Maintenance Tips

Installation

Ensure correct electrical connections

Follow design current requirements

Use correct spacing and layout

Maintenance

Regular system checks

Monitor current output

Inspect power supply unit

MMO anodes require virtually no maintenance, a major advantage.

Conclusion: Reliable and trustworthy protection

If your project requires long-term, stable, and cost-effective corrosion protection, MMO-coated titanium anodes for cathodic protection are currently one of the best options.

They feature:

Long service life

Excellent corrosion resistance

High efficiency

Flexible design

Combined with strong manufacturing capabilities and technical support, they provide complete solutions for modern cathodic protection systems.

Call to Action

Looking for a reliable MMO-coated titanium anode supplier for cathodic protection?

Get customized specifications

Get technical consultation

Get a quick quote

Contact us today to find the solution for your project.