MMO Coated Titanium Tube Anode for Electrolysis

MMO Coated Titanium Tube Anode for Electrolysis

In cathodic protection systems, the anode is the central component responsible for delivering continuous protective current—its reliability directly determines the service life of the structure under protection. Our MMO Coated Titanium Tube Anode for Electrolysis at Baoji City ShenAo Metal Materials Co., Ltd. is engineered for the long-term corrosion protection of various metallic structures. Built on Grade 1 or Grade 2 pure titanium tubes, it features a dense mixed metal oxide catalytic coating on the outer surface. This coating exhibits a very low consumption rate in environments such as soil, freshwater, seawater, and coke breeze backfill, enabling decades of stable service under continuous energization. Compared to traditional graphite or high-silicon cast iron anodes, it is lighter, more compact, and easier to install—making it a reliable choice for your cathodic protection projects.

Why Choose Our Titanium Anodes?

• Very Low Consumption Rate
  At rated current densities, the annual consumption rate of the MMO coating is measured in milligrams. This means even if your cathodic protection system needs to operate continuously for over 20 years, the anode's own material loss is negligible, delivering stable protective current across decades.
• Lightweight Design for Easy Installation
  Compared to high-silicon cast iron anodes of the same dimensions, our titanium tube anodes weigh only one-quarter to one-fifth as much. Whether for deep well installations or shallow buried applications, this significantly reduces the difficulty and cost of transportation, lifting, and backfilling.
• Excellent Electrochemical Stability
  In coke breeze backfill, freshwater, seawater, and chlorine-containing environments, the MMO coating maintains stable chlorine and oxygen evolution potentials. Even if the power supply experiences transient voltage fluctuations, the coating retains its structural integrity, with strong resistance to passivation or spalling.
• Flexible Connection and Assembly Options
  We can provide custom tubular anode strings with titanium conductor bar threaded connections, flanged connections, or welded joints, exactly per your engineering design drawings. The coated active section and bare titanium section of each anode are precisely segmented, ensuring reliable electrical connections during installation and avoiding crevice corrosion risks.

Technical Specifications

​​​​​​​

Real-World Applications

• Buried Metallic Structure Protection: Suitable for impressed current cathodic protection of various buried pipelines, pipe networks, and underground metallic structures, delivering distributed current through deep well or shallow buried anode groundbeds.
• Submerged and Marine Structure Protection: Used for corrosion protection of steel structures in seawater environments, including port facilities, dock piles, cross-sea bridges, and offshore platforms.
• Reinforcement Protection in Concrete: Applied in impressed current cathodic protection for rebar networks within reinforced concrete structures such as bridges, tunnels, and coastal buildings, inhibiting reinforcement corrosion caused by chloride ion ingress.
• Industrial Metallic Structure Protection: Serving storage tanks, piping, and various metallic structures in contact with corrosive media within power plants, chemical plants, and water treatment facilities.
• Storage Tank Bottom Protection: Installed in the sand cushion or coke breeze backfill beneath large above-ground storage tank bottoms, providing soil-side cathodic protection for tank bottom plates.

 ​​​​​​​

The ShenAo Advantage

17 A long time of Fabricating Excellence

Since 2008, we've specialized in valuable metal coated titanium anodes from our office in Baoji's "China Titanium Valley." Our develop bimetallic hazardous welding innovation and progressed coating forms provide items you can trust.

Customization for Your Correct Needs

Every generation line is diverse. We give custom fitted arrangements coordinating your particular current thickness necessities, electrolyte composition, and operational parameters. Whether you require little bunch testing or full-scale generation amounts, we convey on time.

Cost-Effective Lifecycle Management

When coating exhaustion happens, you do not dispose of the whole anode. Our proficient recoating benefit strips the ancient oxide layer, sandblasts the substrate, and reapplies new MMO coating. This expands resource life and decreases your add up to taken a toll of proprietorship considerably.

Product production process

Our Factory

Our Patents and Honors

Our Packaging

​​​​​​​

Frequently Asked Questions

Q: What are the main advantages of MMO titanium tube anodes over high-silicon cast iron anodes?
A: Three main points: first, they are much lighter, making transportation and installation considerably easier. Second, the consumption rate is very low, enabling a longer design life. Third, there is no risk of brittle fracture, so they are less prone to damage from impacts during construction. The initial procurement cost is somewhat higher, but from a total lifecycle cost perspective, they are typically more economical.

Q: How is the coated section length of a tubular anode determined?
A: The coated section length is determined jointly by the total protection current you design and the selected current density. For example, if a single anode needs to output 5A and the design current density is set at 80 A/m², a coating surface area of approximately 0.063 m² is required. From this, the necessary tube diameter and coating length can be back-calculated. You can provide your design parameters to us, and we will assist with the calculation.

Q: What is the function of coke breeze backfill in an anode groundbed?
A: Coke breeze backfill serves three functions: it increases the effective surface area of the anode, reducing the contact resistance between the anode and the soil; it shifts the electrochemical reaction interface from the coating surface to the coke breeze-soil interface, further protecting the anode coating; and it provides a gas venting pathway, allowing gases generated on the anode surface to dissipate freely, preventing gas blockage.

Q: What should be noted during the transportation and installation of pre-assembled anode strings?
A: Two key points: first, when lifting, avoid strapping directly on the coated section; instead, use the reserved bare titanium sections or dedicated lifting lugs. Second, during backfilling, ensure the coke breeze filler around the anode is uniform and compact, avoiding any voids that could lead to localized high current density.

Q: What design current density can be used in seawater environments?
A: The conductivity of seawater is much higher than that of soil. Under typical conditions, the design current density for MMO-coated titanium tube anodes in seawater can be set at 300–600 A/m², significantly higher than in soil environments. However, specific values should also consider seawater flow velocity, temperature, and whether sand scouring is present. We recommend referencing NACE standards or consulting our engineers for confirmation.

Contact Us

You need a partner who not only supplies products but also solves your challenges alongside you. Our team is ready to engage with your inquiries and provide a tailored solution. Share your specific needs or key requirements with us today, and let us help you efficiently transform your breakthroughs into commercial value.

​​​​​​​

Titanium Anode Manufacturer

Email: zh@baojiti.com.cn

WhatsApp: +86-15877696471 (updated)

Products: Titanium Anodes, MMO Titanium Anodes, DSA Coated Titanium Electrodes, Electrolysis Electrodes, Hydrogen Production Electrodes, Wastewater Treatment Titanium Anodes.