Solid MMO Ribbon Anodes for Tank Bottom Cathodic Protection
HELE manufactures solid MMO-coated titanium ribbon anodes and titanium conductor bars for distributed ICCP grid systems beneath storage tank bottoms, with ribbon geometry, spacing, electrical duty and grid configuration reviewed against the project design.
Share the tank diameter, bottom configuration, sand or backfill condition, required CP current, ribbon spacing, conductor-bar layout and design-life requirement.
What Is a Solid MMO Ribbon Anode?
A solid MMO ribbon anode is a continuous flat titanium strip coated with mixed metal oxide and used as the active anodic element in distributed impressed-current cathodic-protection systems.
Solid MMO Ribbon
A continuous solid titanium ribbon with an MMO active coating, typically arranged in parallel runs to distribute protection current across the designed area.
- Solid Flat Geometry
- MMO Active Surface
- Continuous Ribbon Runs
MMO Mesh Ribbon
An open mesh-form MMO electrode with a different exposed-area and installation geometry. It should be specified separately from solid ribbon.
Ribbon Size & Electrical Data
Ribbon width, thickness, active surface area, coil length and electrical duty should be reviewed together because they influence grid layout, current distribution and the project design-life basis.
Standard Dimensions
| Model | Width | Thickness | Surface Area | Coil Length | Approx. Weight |
|---|---|---|---|---|---|
| HL-MMO-A01 | 6.35 mm / 1/4 in | 0.635 mm / 0.025 in | 0.014 m²/m | 152 m / 500 ft | 2.8 kg / 6.2 lbs |
| HL-MMO-A02 | 12.7 mm / 1/2 in | 0.635 mm / 0.025 in | 0.027–0.028 m²/m | 152 m / 500 ft | 5.6 kg / 12.3 lbs |
Basic Product Data
| Product | Solid MMO Ribbon Anode |
|---|---|
| Substrate | Titanium |
| Shape | Solid Ribbon / Flat Strip |
| MMO Coating | IrO₂ / Ta₂O₅ MMO |
| Current Source-Page Coating Thickness | 0.5–1 μm * |
| Current Source-Page Coating Uniformity | ≥85% * |
| Applicable Environment | Fine sand · Sand backfill · Selected concrete conditions |
| Typical Application | Aboveground storage tank bottom CP · Tank base CP · Double-bottom tank protection |
| Standard Coil Length | 152 m / 500 ft |
| Custom Support | Ribbon size · active length · grid layout · conductor bar · connection · documentation |
* Coating specification is confirmed according to the agreed product and project requirements.
Reference Electrical Performance — Rated Conditions Apply
| Model | Linear Resistance | Reference Current Output | Design-Life Basis |
|---|---|---|---|
| HL-MMO-A01 | 0.138 Ω/m / 0.04 Ω/ft | 17 mA/m / 5.2 mA/ft | Up to 50 years under rated project conditions |
| HL-MMO-A02 | 0.069 Ω/m / 0.02 Ω/ft | 42 mA/m / 12.8 mA/ft | Up to 50 years under rated project conditions |
Reference current output and design life must be confirmed against the specified MMO coating, backfill or contact environment, ribbon spacing, current duty and project design criteria. These values should not be treated as an unconditional field-life guarantee.
MMO Ribbon & Titanium Conductor Bar Grid
Tank-bottom ICCP systems can use parallel solid MMO ribbon runs interconnected by transverse titanium conductor bars to create a distributed anode grid beneath the protected tank bottom.
MMO Ribbon Anode
The MMO-coated ribbon is the active anodic element that distributes protection current across the designed tank-bottom area.
Titanium Conductor Bar
The conductor bar electrically interconnects ribbon runs and forms part of the grid current-distribution network.
Ribbon Spacing
Ribbon spacing is reviewed against tank geometry, protection-current demand, backfill condition and the required current-distribution pattern.
Crossover Connections
Ribbon-to-conductor-bar intersections require reliable electrical continuity and mechanical integrity according to the approved grid design.
Custom MMO Ribbon Grids Built Around Your Tank CP Design
Ribbon size, ribbon spacing, conductor-bar layout, electrical duty and connection arrangement can be reviewed around the tank geometry, backfill condition and cathodic-protection design.
Tank Geometry
Tank Diameter · Bottom Configuration
Backfill Environment
Sand / Soil · Resistivity · Moisture Condition
CP Current Requirement
Total Required Current · Current Distribution
Ribbon Layout
Ribbon Length · Spacing · Number of Runs
Conductor-Bar Layout
Bar Arrangement · Crossover Locations
Design-Life Basis
Rated Output · Coating Requirement · Project Life
Project Inputs: Tank Diameter · Bottom Type · Sand / Soil Condition · Resistivity · Required CP Current · Ribbon Spacing · Conductor-Bar Layout · Design Life
Ribbon-to-Conductor-Bar Connection & Inspection
Electrical continuity at ribbon-to-conductor-bar crossover points is important to the completed grid. Connection method and inspection requirements should follow the confirmed project and production specification.
Ribbon Dimensions & Layout
Ribbon width, thickness, active length and required grid position are reviewed against the agreed drawing and order specification.
Crossover Connection
Ribbon-to-conductor-bar connection points are produced according to the confirmed joining method and project grid specification.
Electrical Continuity
Continuity and other agreed project-specific electrical checks can be included according to the inspection scope.
Visual & Dimensional Inspection
Connection location, ribbon dimensions, identification, surface condition and required project records are reviewed before shipment.
Available Quality Documentation
Documentation can be prepared according to the agreed purchase and inspection requirements.
Solid Ribbon vs Mesh Ribbon vs Linear Anode
| Product | Construction | Typical Selection Direction | Link |
|---|---|---|---|
| Solid MMO Ribbon | Continuous solid flat MMO-coated titanium ribbon | Tank-bottom distributed ICCP grid systems | This page |
| MMO Mesh Ribbon | Open expanded-mesh MMO geometry | Applications requiring an open geometry or different exposed-area / embedment configuration | View Product → |
| MMO Linear Anode | Packaged flexible distributed-current assembly | Long-run buried ICCP applications | View Product → |
More MMO Anode Forms
MMO Ribbon Anode FAQs
What is an MMO ribbon anode?
Is MMO ribbon the same as MMO mesh ribbon?
Where are solid MMO ribbon anodes commonly used?
What is the role of the titanium conductor bar?
What determines MMO ribbon spacing?
What information is required for a quotation?
Request a Custom MMO Ribbon Anode Grid Review
Send your tank-bottom cathodic-protection requirements so HELE can review the ribbon specification, grid spacing, conductor-bar arrangement, electrical duty and connection requirements before quotation.