Baoji Ruihenghua Titanium Metal Composite New Materials Co., Ltd. is one of the leading manufacturers and suppliers of anode for water electrolysis in China. If you're going to buy customized anode for water electrolysis made in China, welcome to get more information from our factory. For price consultation, contact us.
Product Introduction
Titanium-based MMO-coated anodes in water, also known as dimensionally stable anodes (DSA anodes), are the core electrochemical functional components of water electrolysis treatment systems. The product uses high-purity TA2 industrial-grade titanium as the conductive substrate, and a multi-layered noble metal mixed oxide (MMO) catalytic layer is coated on the surface through a high-temperature thermal decomposition process. It exhibits stable electrochemical activity and excellent corrosion resistance in aqueous solutions. Unlike traditional graphite, stainless steel, and lead alloy anodes, titanium-based MMO anodes maintain dimensional stability and catalytic activity without decay during long-term electrolysis, with no impurity ion dissolution and no secondary pollution to water bodies. Simultaneously, they exhibit low chlorine/oxygen evolution potentials, high current efficiency, and low operating energy consumption. They are widely used in industrial wastewater COD degradation, electrolytic descaling of circulating water, swimming pool disinfection, and sodium hypochlorite electrolysis, making them the preferred core electrode for modern electrochemical water treatment systems.
Product Parameter
Implement International Standards System
● Titanium-based material standards: ASTM B265 "Standard Specification for Titanium and Titanium Alloy Sheets, Plates, and Plates", GB/T 3621 Titanium and Titanium Alloy Sheets Standard.
● Coating process specifications: High-temperature thermal decomposition sintering process is adopted, which meets the general technical requirements for electrochemical water treatment electrodes.
● Welding process standard: AWS D10.9 TIG welding specification for zirconium and zirconium alloys, extended to titanium welding standard, 99.99% high-purity argon gas protection.
● Environmental compliance standards: Complies with EU RoHS 2.0 directive, with no leaching of harmful heavy metals, suitable for drinking water-grade treatment scenarios.
● Acceptance and quality assurance standards: EN 10204 3.1 Original manufacturer's material certificate, coating adhesion test report, and electrochemical performance test report.
● Applicable operating conditions: Suitable for water quality with pH 0–14 and operating temperature ≤80℃; not suitable for long-term immersion in hydrofluoric acid or high concentration of fluoride ions.
Standard Materials And Structural Parameters
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Parameter Categories |
Optional Specifications |
Illustrate |
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substrate material |
TA1/TA2 Industrial Pure Titanium |
The general-purpose type has excellent corrosion resistance, high mechanical strength, and long-term dimensional stability. |
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Coating system |
Ruthenium-iridium series (chlorine-evolving type), iridium-tantalum series (oxygen-evolving type), platinum series (high-purity type) |
Precise matching based on water quality and electrolysis reaction type |
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Structural form |
Plate type, perforated plate, tubular type, rod type, cage type, irregular structure |
Grid type has a large specific surface area, plate type has uniform current, and selection can be made according to needs. |
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Effective area |
Individual units range from 0.01 to 50 square meters and can be connected in series or parallel. |
Matching the total area according to the water treatment volume and current density |
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Matrix thickness |
Sheet metal: 1.0–5.0 mm thick; Pipe: 1.0–3.0 mm thick. |
For high current and long lifespan applications, a thicker substrate is recommended. |
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Coating thickness |
5–30μm, typically 8–15μm |
For heavy-duty applications, a thicker coating can be customized to extend service life. |
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Standard accessories |
Titanium conductive rod, terminal block, mounting bracket, insulation kit |
Made entirely of titanium, it is free from stray corrosion when in contact with water. |
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Optional accessories |
Cathode components, insulating sleeves, hoisting structure, and wiring copper busbars |
Optional configuration to suit different water treatment equipment structures |
Product Features and Applications
Product Advantages
High catalytic activity, high electrolysis efficiency and low energy consumption: The noble metal oxide coating has excellent electrocatalytic activity, low chlorine and oxygen evolution overpotentials, and can efficiently carry out electrolysis reactions at low voltage. Compared with traditional graphite and lead alloy anode current efficiency, it increases by more than 30% and reduces operating voltage by 10-20%, which greatly reduces the power consumption per ton of water in the water treatment system and has significant energy-saving benefits in the long run.
Titanium-based corrosion-resistant protection with an ultra-long service life: The passivation film of the TA2 pure titanium matrix is stable in acidic, alkaline, high-salt, and strongly oxidizing water, and its corrosion resistance is far superior to that of stainless steel, carbon steel, and graphite materials; combined with a dense MMO catalytic coating, the continuous service life under normal operating conditions can reach 2-10 years, which is 5-10 times that of traditional anodes, greatly reducing the frequency of electrode replacement and downtime maintenance costs.
Size stable with no leaching, and no secondary pollution: The anode itself is hardly consumed during the electrolysis process, and its geometric dimensions remain stable over a long period of time. The electrode spacing is always uniform and consistent, and the current distribution remains stable without the need for frequent adjustment of the electrode spacing. Moreover, the all-titanium substrate and precious metal coating do not leach heavy metal impurities such as iron, lead, and chromium, and will not cause secondary pollution to water bodies. It fully meets the cleanliness requirements for the treatment of drinking water, medical wastewater, and food processing water.
Multi-coating system, precisely adapted to various water qualities: Coating systems can be customized to match the water quality and electrolysis reaction type: For high-chlorinated water, a ruthenium-iridium coating is used for efficient chlorination and sterilization; for high-hardness, acidic wastewater, an iridium-tantalum coating is used for strong oxidation resistance and long service life; for drinking water and medical water, a platinum coating is used for high purity and cleanliness. Targeted coating formulations ensure optimal electrolysis performance and maximum service life.
Highly customizable and easy to install and replace: Supports various structural customizations such as plate, mesh, and pipe types, which can be fully matched with the installation space, wiring method and size specifications of the original water treatment equipment. It can be used by directly replacing the traditional anode without modifying the main body of the equipment; at the same time, the electrode arrangement and specific surface area can be optimized according to the treatment volume and water quality load to achieve the best treatment effect.
Application Areas
Industrial wastewater treatment: Electrocatalytic oxidation systems for COD degradation, decolorization and deodorization, and ammonia nitrogen removal of highly challenging wastewater from industries such as dyeing, pharmaceuticals, chemicals, and landfill leachate.
Disinfection and sterilization fields: electrolytic sterilization and algae removal of swimming pool water, landscape water, and aquaculture water; sodium hypochlorite generator electrolytic chlorination anode.
Circulating water treatment: Electrolytic descaling, corrosion inhibition, and sterilization systems for central air conditioning and industrial circulating water, replacing chemical dosing solutions.
Drinking water purification: Electrolytic disinfection and micro-polluted water treatment for municipal water supply and direct drinking water, with no chemical residues.
Seawater and high-salinity water: seawater desalination pretreatment, high-salinity wastewater electrolysis, auxiliary anode for cathodic protection of offshore platforms.
Environmental upgrade: Upgrade and replacement solutions for existing water treatment systems that are prone to rapid corrosion and have low efficiency due to graphite, lead alloy, and stainless steel anodic corrosion.
Product Details
Coating Standards
Uniform coating thickness deviation ≤ ±2μm, complete coverage without omissions, adhesion ≥15MPa, and no peeling during cross-cut adhesion test.
01
Geometric Accuracy
Flatness of planar electrodes ≤ 0.3 mm/m, coaxiality of tubular electrodes ≤ 0.5 mm/m, and deviation of mounting holes ≤ 0.3 mm.
02
Welding standards
Continuous full welding, the weld is silver-white, without oxidation or blackening, without porosity or cracks, and is ground smooth after welding.
03
Surface quality
The substrate is free of scratches, cracks, and oil stains; the coating has a uniform color and is free of bubbles, peeling, and pinhole defects.
04
Product Supporting Documents
Authoritative International Qualification Certificates
ASTM B265 titanium material test report, with an original manufacturer's material certificate of EN 10204 3.1 issued for each batch.
ISO 9001 Quality Management System Certification, ISO 14001 Environmental Management System Certification.
Third-party SGS test reports on coating adhesion, electrochemical properties, corrosion resistance, and material purity.
The RoHS environmental compliance test report shows that it meets the environmental protection requirements for drinking water and food contact grade water treatment.
thoughtful service
Packaging Standards (For Export By Sea)
The product is fully wrapped in pearl cotton and PE protective film, with protective covers added to the electrode working surface and corner protectors added to the edges and corners to prevent damage to the coating during transportation.
The entire batch is packed into fumigated solid wood export crates, with the interior filled with shock-absorbing foam for multiple fixation points to prevent movement , friction, and deformation during transportation.
The wooden crates are labeled with the product model, dimensions, quantity, gross weight, and moisture-proof/lifting markings, making them suitable for all scenarios including sea, land, and air transport.
Professional Consultation Q&A
Q1: Why are titanium-based MMO anodes chosen for water treatment electrolysis instead of graphite, stainless steel, or lead alloy anodes?
A1: The core reason is that traditional anodes cannot simultaneously meet the three requirements of high efficiency, durability, and environmental protection. Graphite anodes have low catalytic activity and high power consumption; they gradually pulverize and detach during electrolysis, resulting in a short lifespan and water pollution. Stainless steel anodes are extremely prone to corrosion and leaching under electrolysis conditions, leading to a very short lifespan and the release of heavy metals, causing secondary pollution. Lead alloy anodes have generally poor corrosion resistance, and lead is a toxic heavy metal, strictly prohibited for use in drinking water and food-related water treatment scenarios. Titanium-based MMO anodes use pure TA2 titanium as a corrosion-resistant matrix, with a precious metal oxide coating on the surface providing high catalytic activity. They combine four major advantages: high electrolysis efficiency, long service life, no impurity leaching, and dimensional stability, making them the standard and optimal choice for modern electrochemical water treatment systems.
Q2: What water treatment conditions are the three types of coatings-ruthenium-iridium, iridium-tantalum, and platinum-corresponding to, and how should they be selected?
A2: The core basis for coating selection is the water composition and the electrolytic reaction of the main conductor.
● Ruthenium-iridium coating: It has an extremely low chlorine evolution overpotential and is designed for chlorine evolution reaction. It is suitable for water bodies with high chlorine content, such as swimming pool disinfection, seawater treatment, sodium hypochlorite generators, and high-salt wastewater sterilization. It has high sterilization efficiency and low operating cost.
● Iridium-tantalum coating: It has strong oxygen evolution stability and resistance to strong oxidation corrosion. It is mainly used for oxygen evolution reaction and is suitable for acidic wastewater, high COD industrial wastewater, electrolytic descaling of circulating water and other scenarios. It has stronger corrosion resistance and longer service life, and is the general mainstream choice for wastewater treatment.
● Platinum-based coatings offer extremely high purity, are non-toxic and harmless, and exhibit stable catalytic performance. They are suitable for applications requiring extremely high water purity, such as drinking water purification, medical wastewater treatment, and food processing water, and offer optimal safety. We can recommend the optimal coating formulation based on your specific water composition and treatment objectives.
Q3: Will the coating on the titanium anode peel off, and what is its normal service life?
A3: Titanium-based MMO anodes produced using standard processes will not experience large-scale coating peeling under normal operating conditions. Our substrate pretreatment, involving sandblasting and acid pickling activation, combined with multi-layer coating and successive high-temperature sintering, ensures a strong bond between the coating and the titanium substrate, with adhesion ≥15MPa. This allows it to withstand water flow and conventional reverse current impacts without blistering or large-scale peeling. Service life is primarily determined by water quality, current density, and operating temperature: for conventional circulating water and swimming pool disinfection, ruthenium-iridium coatings can last 5–8 years; for industrial wastewater with strong oxidation, iridium-tantalum coatings can last 2–5 years; and for low-load drinking water applications, platinum-based coatings can last 8–10 years, far exceeding the lifespan of traditional anodes.
Latest company news
The entire composite material production line has been fully upgraded, with an annual production capacity of 1,350 tons.
Baoji Ruihenghua Titanium Metal Composite New Materials Co., Ltd. is located in Baoji, Shaanxi Province, known as China's Titanium Valley. Following its asset restructuring in 2024, the company has upgraded its entire production line, encompassing explosive lamination, hot rolling lamination, vacuum heat treatment, and precision deep processing. With over 20 years of experience in non-ferrous metal processing, the company has built a complete production chain from ingot smelting, forging, rolling to vacuum heat treatment, equipped with core production equipment such as a 350KW electron beam melting furnace, a 2000T hydraulic press, and a 1500mm vacuum annealing furnace.
The company's products cover titanium-based, copper-based, stainless steel-based, zirconium-based, and multi-layer transition composite plates, composite rods, and composite profiles, as well as deep-processed finished products such as electrolytic conductive beams, cathode rods, electroplating targets, and electrochemical electrodes. The annual production capacity of the full range of composite materials reaches 1,350 tons. All products are manufactured in strict accordance with international standards such as ASTM and ASME, and a full-process quality traceability system has been established, improving production efficiency by 30%. The delivery cycle for standard batch orders can be controlled within 15 days, providing a stable supply guarantee for customers in global hydrometallurgy, electronic electroplating, environmental water treatment, chemical, and new energy industries.
Deep processing capabilities have been fully expanded, enabling integrated supply from raw materials to finished products.
Focusing on market demand in the fields of hydrometallurgy, electronic electroplating, environmental water treatment and new energy materials, the company's independently developed titanium-based cathode plate and conductive component production and processing project officially passed government filing and environmental protection acceptance in October 2025 and is now in full production.
Building upon its existing composite substrates, the company has further expanded its deep-processing capabilities for finished products such as electrolytic conductive beams, stainless steel copper-clad suspension rods, PCB electroplated cathode targets, MMO-coated titanium anodes, and corrosion-resistant conductive structural components, achieving integrated production from composite substrates to finished products. The company continues to increase its investment in the research and development of dissimilar metal composite technologies, providing targeted material matching and structural design solutions for different operating conditions such as strong acids, strong alkalis, high temperatures and pressures, and high-current corrosion, helping customers optimize project costs and improve equipment lifespan and operational stability.
Upgraded global service system, with self-operated import and export rights to achieve full-category export coverage.
The company possesses formal self-operated import and export qualifications and has established a comprehensive global supply and service system, with business covering multiple countries and regions in Europe, Southeast Asia, North America, and the Middle East. The company collaborates with internationally renowned logistics carriers, providing diversified delivery solutions including sea freight, air freight, and China-Europe freight trains, supporting the export of its full range of composite materials, conductive components, and electrochemical electrode products.
Adhering to the quality philosophy of "Quality First, Customer Supreme," the company provides original material certificates (EN 10204 3.1) for each batch of products, and all bulk orders support testing by third-party organizations such as SGS and BV. The company offers free returns and exchanges for quality issues within 7 days of delivery and long-term product warranties. A professional engineering team provides 24-hour online technical support, and the company is committed to becoming a trusted long-term supplier of metal composite materials and refractory metal components for global customers.
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