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MMO Tubular Anode for Cathodic Protection Systems
Hele Titanium | MMO Anode Division

MMO Tubular Anode for Cathodic Protection Systems

Custom MMO coated titanium tubular anodes engineered for seawater, soil, tank bottom, marine structure, offshore, water intake, pipeline, and impressed current cathodic protection applications.

MMO Coating Titanium Tube Substrate Custom Diameter & Length Export Documentation
MMO TUBULAR ANODE ENGINEERING

Durable Cylindrical Current Output for ICCP Applications

MMO tubular anodes are selected when a durable cylindrical anode surface is required for impressed current cathodic protection systems. They are commonly reviewed for seawater, soil, marine structures, tank bottoms, water intake systems, pipelines, and other CP applications requiring stable current output.

Compared with wire or ribbon anodes, MMO tubular anodes provide a stronger three-dimensional structure and a larger cylindrical coating surface. Compared with canister anodes, tubular anodes are often used when a bare or directly mounted anode form is suitable without prepackaged backfill.

Cylindrical Anode Surface

Titanium tube geometry provides a durable coated surface for current discharge.

Seawater & Soil CP Support

Tubular anodes can be reviewed for marine, soil, tank, intake, and structural CP systems.

Custom Tube Size

Diameter, length, coating area, and current output can be reviewed according to project requirements.

Cable & Mounting Options

Cable connection, sealing, end caps, mounting holes, brackets, and labels can be supported when required.

Engineer inspecting MMO tubular anode

Hele Titanium supports custom MMO tubular anodes with project-specific requirements according to cathodic protection project needs.

Request MMO Tubular Anode Review

What Is an MMO Tubular Anode?

An MMO tubular anode is a titanium tube coated with mixed metal oxide. It is used as an anode in impressed current cathodic protection systems where current must be delivered into seawater, soil, backfill, freshwater, or other conductive environments. The tubular shape provides a strong mechanical structure and a cylindrical active surface.

MMO tubular anode structure

MMO tubular anode structure

MMO tubular anodes use a titanium tube substrate coated with mixed metal oxide to provide stable current output in conductive environments. The tubular geometry offers mechanical strength, active surface area, and flexible connection options for marine, soil, backfill, water intake, tank, and pipeline CP applications.

Key Points

  • Titanium tube substrate
  • MMO-coated active surface
  • Cylindrical current output geometry
  • Strong mechanical structure
  • Custom cable, end cap, threaded, or mounting connection available
  • Suitable for seawater, soil, backfill, freshwater, and other conductive environments
Feature What It Means Why It Matters
Titanium Tube Substrate A titanium tube is used as the base structure. Provides corrosion resistance, mechanical strength, and a stable support for MMO coating.
MMO Coating Mixed metal oxide coating is applied to the active tube surface. Provides electrochemical activity for impressed current output.
Cylindrical Geometry The anode has a round tube form with active surface around the outside. Supports current discharge in seawater, soil, backfill, or other conductive environments.
Custom Connection Cable, tab, end cap, threaded connection, or mounting structure can be customized. Supports installation, electrical continuity, and CP system integration.

MMO Tubular Anode Options We Supply

Different MMO tubular anode configurations are used depending on environment, current output, installation method, mounting structure, and connection requirements. Hele Titanium can support standard and custom MMO coated titanium tubular anodes according to project requirements.

Standard MMO Tubular Anode

Standard MMO Tubular Anode

MMO coated titanium tube anode for impressed current cathodic protection applications.

Best For:

Seawater CP, soil CP, tank bottom protection, marine structures, and general ICCP systems.

Cable-Connected MMO Tubular Anode

Cable-Connected MMO Tubular Anode

Tubular anode supplied with cable connection, sealing, end cap, labels, and project-specific termination.

Best For:

Field installation, buried CP systems, marine CP, and ready-to-connect anode assemblies.

Custom-Length MMO Tubular Anode

Custom-Length MMO Tubular Anode

MMO tubular anodes with project-specific tube diameter, length, coating area, and current output.

Best For:

Projects requiring defined output, installation spacing, mounting requirements, or custom geometry.

Custom MMO Tubular Anode Assembly

Custom MMO Tubular Anode Assembly

Drawing-based MMO tubular anode assemblies with custom tube, connection, brackets, cable, packing, and documentation.

Best For:

OEM systems, marine structures, tank CP systems, and project-specific electrochemical protection applications.

Where MMO Tubular Anodes Are Commonly Used

MMO tubular anodes are commonly used when a durable cylindrical anode form is required for impressed current cathodic protection in deep well, shallow groundbed, storage tank, soil, sand, mud, freshwater, brackish water, or seawater environments. The final tube size, coating area, cable connection, current output, and installation method should be reviewed according to the protected structure, operating environment, and CP design requirements.

Application Why MMO Tubular Anode Fits Key Review Factors
Deep Well Groundbed Systems The tubular shape provides a strong anode form for deep well ICCP installations where reliable current discharge and long service life are required. Groundbed depth, soil or water-bearing layer condition, backfill design, current output, cable length, sealing, and installation method.
Shallow Groundbed Systems MMO tubular anodes can be installed in shallow groundbeds where controlled current output is required in soil, sand, or backfilled environments. Soil resistivity, installation depth, backfill condition, anode spacing, cable route, current demand, and design life target.
Storage Tank Cathodic Protection Tubular anodes can support ICCP systems for storage tanks, tank farms, and related buried or soil-contact structures. Tank diameter, foundation condition, soil resistivity, groundbed layout, current distribution, cable connection, and monitoring access.
Soil / Sand / Mud Environments The cylindrical titanium tube structure can be reviewed for CP systems operating in soil, sand, mud, or mixed backfill conditions. Environment resistivity, moisture level, backfill quality, burial depth, current output, mechanical protection, and cable sealing.
Fresh Water / Brackish Water / Seawater CP MMO tubular anodes can provide stable current output in conductive water environments when coating type, connection, and sealing are properly selected. Water chemistry, salinity, temperature, current density, cable sealing, exposure condition, and expected service life.
Custom ICCP Groundbed Projects Tube diameter, coated length, coating loading, cable type, and connection design can be customized for project-specific CP layouts. Protected structure, operating environment, required current, groundbed design, installation limitation, documentation, and inspection requirements.

Technical Specifications

MMO tubular anodes are titanium tube anodes coated with mixed metal oxide catalysts for impressed current cathodic protection systems. They are commonly used in pipeline CP, water tank protection, storage tank CP, shallow groundbeds, deep well groundbeds, soil, fine sand, mud, freshwater, brackish water, and seawater environments.

Basic Specifications

Product Category MMO Tubular Anode / Soil Anode
Substrate Titanium
Shape Tubular
Coating Composition IrO₂ / Ta₂O₅ or IrO₂ / RuO₂ MMO coating
Applicable Environment Soil, fine sand, coke breeze, freshwater, brackish water, seawater, mud, shallow groundbed, deep well
Typical Applications Pipeline CP, water tank CP, storage tank CP, shallow vertical groundbeds, horizontal surface groundbeds, deep well groundbeds
Standard Design Life Reference 25 years under rated operating conditions
Custom Support Tube diameter, coated length, coating thickness, cable type, connector, string assembly, sealing, packing, labels, and documentation can be customized according to project requirements

Coating Options

Coating Type Recommended Environment Coating Thickness Coating Uniformity
Ir–Ta MMO Coating Soil, fine sand, coke breeze, freshwater, and low-chloride environments 2–3 μm ≥85%
Ir–Ru MMO Coating Seawater, brackish water, mud, concrete, acidic, chloride, or oxygen-rich environments 4–5 μm ≥85%

In  Soil / Coke Breeze / Freshwater

Anode Sizes Current Density Rated Output Lifetime
Φ16 × 1000 mm 100 A/m² 5.0 A 25 Years
Φ19 × 1000 mm 100 A/m² 6.0 A 25 Years
Φ25 × 500 mm 100 A/m² 4.0 A 25 Years
Φ25 × 1000 mm 100 A/m² 8.0 A 25 Years
Φ25 × 1524 mm 100 A/m² 12.0 A 25 Years
Φ32 × 1220 mm 100 A/m² 12.0 A 25 Years
Φ50 × 1200 mm 100 A/m² 19.0 A 25 Years

In Seawater

Anode Sizes Current Density Rated Output Lifetime
Φ16 × 1000 mm 600 A/m² 30.0 A 25 Years
Φ19 × 1000 mm 600 A/m² 36.0 A 25 Years
Φ25 × 500 mm 600 A/m² 24.0 A 25 Years
Φ25 × 1000 mm 600 A/m² 48.0 A 25 Years
Φ25 × 1524 mm 600 A/m² 72.0 A 25 Years
Φ32 × 1220 mm 600 A/m² 72.0 A 25 Years
Φ50 × 1200 mm 600 A/m² 114.0 A 25 Years

Connection & Cable Options

MMO tubular anodes can be supplied as single anodes or factory-assembled anode strings. The anodes are commonly connected with specialized pure copper connectors, and the connection area can be encapsulated with epoxy resin or project-specific sealing materials to support waterproof protection and electrical continuity.

Installation Environment Recommended Cable Option
High-chloride groundbed / demanding soil environment PVDF / HMWPE dual-insulated cable
Shallow vertical or horizontal surface beds with low chloride exposure HMWPE cable
Seawater applications Marine cable with suitable current capacity and flexibility

Engineering Notes

  • Final current output should be reviewed according to coating type, operating environment, current density, cable selection, and design life target.
  • Longer working life can be supported by increasing coating thickness or reducing operating current density according to CP design requirements.
  • Soil, coke breeze, freshwater, brackish water, seawater, and mud environments may require different coating systems and cable protection.
  • Anode string length, cable length, connector type, sealing method, and documentation should be confirmed according to project drawings and installation conditions.

Custom MMO Tubular Anodes Built Around Your CP System

Engineer inspecting custom MMO tubular anode

1. Tube Size Review

Review tube diameter and length according to current output, installation space, mechanical strength, and mounting method.

2. Coating Area Design

Customize full or partial coating area according to active output zone and system layout.

3. Current Output Review

Review total current demand, output per anode, current density, and design life target.

4. Coating & Loading Review

Review MMO coating type and coating loading according to environment and current requirement.

5. Cable & Sealing Design

Customize cable length, insulation type, connection method, sealing, end cap, strain relief, and labeling.

6. Mounting & Installation

Review brackets, fixing method, suspension, burial, embedment, flange connection, and mechanical protection.

WHAT WE NEED FROM YOU

  • Application
  • Protected structure type
  • Operating environment
  • Required current output
  • Design life target
  • Preferred tube size
  • Required coating area
  • Mounting method
  • Cable requirements
  • Quantity & destination

Tube Size, Coating Area and Current Output Must Be Reviewed Together

For MMO tubular anodes, tube diameter and length are only part of the design. Coating area, output per anode, operating environment, mounting method, cable sealing, and design life all affect the final recommendation.

1

Tube Diameter & Length

Affect mechanical strength, active surface area, installation space, and handling requirements.

2

Coating Area

Determines the active current output zone and should match the CP system design.

3

Current Output per Anode

Helps define coating loading, current density, anode quantity, and system layout.

4

Cable Sealing & Mounting

Connection sealing and mechanical mounting are important for seawater, soil, and buried installations.

Quality Control for MMO Tubular Anodes

MMO tubular anode quality depends on titanium tube substrate condition, surface preparation, coating application, coating area accuracy, tube dimension, cable connection, sealing quality, visual condition, packing protection, and final documentation.

Titanium Tube Substrate Review

Titanium tube is reviewed according to grade, diameter, wall thickness, length, straightness, surface condition, and project requirements.

Surface Preparation

Cleaning, roughening, activation, and pre-treatment are controlled before coating.

MMO Coating Application

Coating formulation, application cycles, drying, and thermal treatment are controlled according to project requirements.

Coating Area & Dimension Check

Tube diameter, length, active coating area, labels, end structure, and termination details are reviewed according to order requirements.

Connection & Visual Review

Cable connection, sealed joint, end cap, surface condition, coating coverage, and visual appearance are reviewed according to inspection scope.

Packing & Documentation

MTC, coating record, inspection notes, labels, packing list, and project-specific documents

Available Documents May Include:

  • MTC (Material Test Certificate)
  • Coating record
  • Dimensional inspection record
  • Coating area record when required
  • Visual inspection notes
  • Cable / connection inspection notes
  • Packing list & Product labels
  • Project-specific QC documents

Installation Considerations for MMO Tubular Anodes

Proper installation helps MMO tubular anodes deliver current output more effectively. Tube placement, mounting method, cable routing, sealing protection, contact environment, and mechanical protection should be reviewed before installation.

Typical MMO tubular anode groundbed installation

Typical MMO tubular anode groundbed installation

Installation Factor Why It Matters
Anode Placement Affects current distribution, protection coverage, system resistance, and overall CP performance.
Mounting Method Bracket mounting, suspension, burial, embedment, flange connection, or groundbed placement should match the installation environment.
Contact Environment Seawater, soil, coke breeze, backfill, freshwater, mud, or industrial water can affect current transfer, coating selection, and service life.
Cable Routing Proper cable routing helps protect insulation, reduce mechanical stress, and maintain electrical continuity.
Cable Sealing Protection Reliable sealing is important for wet, buried, seawater, high-chloride, or high-exposure environments.
Mechanical Protection Helps reduce damage during handling, installation, burial, groundbed construction, or marine operation.
Anode Spacing Spacing affects current distribution, system resistance, protection uniformity, and rectifier output requirements.
Testing & Commissioning Continuity checks, polarity confirmation, and current output testing help verify correct installation before operation.

Buyer Note

MMO tubular anode installation should be reviewed together with the full cathodic protection system design. Share your operating environment, layout drawing, current requirement, installation method, cable specification, and design life target for engineering review.

Compare MMO Tubular Anodes with Other MMO Anode Forms

MMO tubular anodes are best used when a durable cylindrical anode form is required for seawater, soil, tank, or structural CP systems. Other MMO anode forms may be more suitable when the project requires packaged backfill, distributed linear output, compact localized output, or flexible embedded installation.

MMO Linear Anode

Best Used When: Distributed current output is required along a long protected area.

View MMO Linear Anode →

MMO Wire Anode

Best Used When: Flexible embedded linear current output is needed.

View MMO Wire Anode →

MMO Ribbon Anode

Best Used When: Flat long-area current distribution is required.

View MMO Ribbon Anode →

MMO Mesh Ribbon Anode

Best Used When: Larger contact area or concrete embedment is needed.

View MMO Mesh Ribbon Anode →
Similar Form

MMO Canister Anode

Best Used When: A packaged anode assembly with backfill is required for groundbed installation.

View MMO Canister Anode →

MMO Disc Anode

Best Used When: A compact localized anode surface is required.

View MMO Disc Anode →

MMO Rod Anode

Best Used When: A rod-shaped electrode is needed for cell, CP, or pilot systems.

View MMO Rod Anode →

Not sure which MMO anode form is suitable?

MMO Tubular Anode FAQ

What is an MMO tubular anode?
An MMO tubular anode is a titanium tube coated with mixed metal oxide. It is used as an anode in impressed current cathodic protection systems to deliver current into seawater, soil, or other conductive environments.
Where are MMO tubular anodes commonly used?
They are commonly used in seawater cathodic protection, soil CP, marine structures, offshore platforms, tank bottom protection, water intake systems, and custom ICCP projects.
What is the difference between MMO tubular anode and MMO canister anode?
A tubular anode is the bare coated titanium tube itself (sometimes with a cable). A canister anode is a tubular (or wire) anode pre-packaged inside a galvanized steel or fabric canister filled with carbon backfill, ready for groundbed burial.
What is the difference between MMO tubular anode and MMO rod anode?
A tubular anode uses a hollow titanium tube, providing high surface area with lighter weight, suitable for larger CP structures. A rod anode uses a solid titanium rod, often used where high mechanical rigidity in a smaller diameter is needed, such as internal vessel protection.
How do I choose tube diameter and length?
Tube diameter and length depend on current output, environment, installation layout, required coating area, and mechanical strength requirements for your specific CP system.
What affects current output per tubular anode?
Current output depends on the active coating area, the operating environment (e.g., seawater vs. soil), the MMO coating type and loading, and the design life target.
Can MMO tubular anodes be customized by length?
Yes, custom lengths can be supported according to project requirements, installation space, and required active coating area.
Can you supply cable connections and sealing?
Yes, we can support cable connections, epoxy sealing, end caps, and custom terminations when required for your installation.
Can MMO tubular anodes be used in seawater CP?
Yes, they are highly suitable for seawater applications like marine structures, jetties, and offshore platforms, subject to coating review for seawater environments.
Can MMO tubular anodes be used for soil or tank bottom CP?
Yes, they can be installed directly in soil or carbon backfill for tank bottoms, pipelines, and general buried groundbeds.
What documents can be provided?
Depending on project requirements, we can provide MTC, coating records, dimensional inspection notes, and packing lists.
What information is needed for a quote?
Please provide the application environment, required current output, design life target, preferred tube dimensions (diameter/length), cable requirements, and quantity.
Hele Titanium Factory

Get Your Custom MMO Tubular Anode Recommendation

Tell us your application, protected structure, operating environment, current output requirement, design life target, tube diameter, tube length, coating area, cable connection, and installation method. Hele Titanium will help review the suitable MMO tubular anode configuration for your project.

MMO Coated Titanium Tubular Anodes

Manufactured for marine, soil, and ICCP applications.

Tube Diameter, Coating Area & Output Review

Engineered to match your specific CP system requirements.

Cable Connection, Sealing & Documentation Support

Complete assemblies ready for installation.

Factory-Direct Export Packing & Project Support

Securely packed and documented for global shipping.

Direct Contact:

sales@heletitanium.com

Factory: Titanium Valley, Baoji City, Shaanxi Province, China

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