MMO Titanium Anodes for Salt Chlorination and HOCl Generation Systems

1. Application Overview

MMO coated titanium anodes are widely used in salt chlorination systems and hypochlorous acid (HOCl) generation equipment for swimming pools and water treatment applications.

Salt chlorination technology is a mature and widely adopted solution for swimming pool disinfection. Instead of manually adding chlorine chemicals, these systems generate disinfectant directly through electrolysis.

The basic electrochemical reaction is:

NaCl (salt) + electrolysis → HOCl (hypochlorous acid) → water disinfection

A typical salt chlorination system mainly consists of:

• Power supply
• Electrolytic cell
• MMO coated titanium electrodes

During operation, a low concentration salt solution flows through the electrolytic cell. Through electrolysis, hypochlorous acid and sodium hypochlorite are generated in situ, providing continuous disinfection for swimming pool water.

In many modern swimming pool systems, the salt chlorinator cell uses MMO coated titanium anodes to generate chlorine through electrolysis.

2. Market Development

Saltwater chlorination technology has been gradually replacing traditional manual chlorine dosing in swimming pools.

Compared with conventional chlorine treatment, salt chlorination systems offer several advantages:

• Automatic and continuous disinfection
• Lower maintenance requirements
• No need for storage or transportation of chlorine chemicals
• More stable chlorine levels in the water

Because of these advantages, the global market for salt chlorination systems continues to grow steadily.

The global market size was approximately USD 318 million in 2024, and it is expected to reach USD 482 million by 2032, with an estimated compound annual growth rate (CAGR) of about 6.3%.

As the demand for automatic pool sanitation grows, more equipment manufacturers are developing salt chlorinator cells and electrolytic chlorine generation systems for residential and commercial pools.

3. Our Experience and Technical Support

We are a titanium anode manufacturer in China with more than 25 years of experience in electrochemical electrode production.

Our company produces MMO coated titanium anodes and electrolytic cells for salt chlorination systems, hypochlorous acid generators, and other electrochemical applications.

We can supply both:

• MMO coated titanium electrodes
• Complete electrolytic cells for salt chlorination systems

Our engineering team can support customers in several ways:

• Manufacturing titanium anodes according to customer drawings or specifications
• Customizing electrode structures based on different electrolytic cell designs
• Providing coating recommendations according to operating conditions such as current density, salinity, and flow rate
• Optimizing electrode configuration to improve efficiency and service life
• Assisting customers in the development or improvement of electrolytic cell structures

4. Typical Customers We Serve

Our titanium anodes and electrolytic cells are mainly supplied to three types of customers.

1. Residential Swimming Pool Equipment Manufacturers

This is the largest segment of the market, accounting for more than 65% of global demand.

These companies manufacture salt chlorination systems for residential swimming pools. They usually purchase:

• Electrolytic cells
• Titanium electrode assemblies

The electrodes are consumable components that require periodic replacement depending on operating conditions.

2. Commercial Swimming Pool Systems

Commercial swimming pools such as those in:

• hotels
• resorts
• public swimming facilities
• water parks

usually require higher chlorine production capacity and therefore use larger electrolytic cells and higher operating currents.

3. Water Treatment Equipment Companies

Some water treatment companies integrate electrolysis technology into compact disinfection equipment.

Typical applications include:

• Drinking water disinfection
• Hospital sanitation systems
• Food processing sanitation
• Small-scale water treatment units

In these systems, hypochlorous acid (HOCl) generated by electrolysis is used as an effective disinfectant.

5. Our Standard Electrolytic Cell Production Range

The following table shows our standard electrolytic cells for salt chlorination and HOCl generation systems.

Custom electrolytic cells and titanium anodes can also be manufactured according to specific project requirements.