MMO Elliptical Disc-shaped Anode

The MMO Disc-shaped Anode is an insoluble auxiliary anode manufactured by sintering a stable, highly electrocatalytic mixed metal oxide coating (e.g., IrO2, RuO2, Ta2O5) onto a titanium substrate (TA1/TA2).

It features high electrocatalytic activity, high current efficiency, and long service life, specifically designed for impressed current cathodic protection (ICCP) systems on ship hulls in seawater, brackish water, and freshwater environments.

KEY FEATURES

• High efficiency, long lifespan
• Strong environmental resistance
• Excellent shielding performance
• Uniform current distribution

SPECIFICATIONS

• Product Model:Circle / Ellipse / Rectangle
• Enclosure:PVC
• Sealing Material:Epoxy resin
• Product Size:customization
• Anode Substrate:Titanium-ASTM B265 Grade 1
• Coating:
• Composition:IrO2/RuO2 or IrO2/Ta2O5/RuO2
• Thickness:≥8μm
• Crystallite Density:6~12g/cm³
• Resistivity:9~11μΩ·cm
• Consumption Rate: ≤2 mg/(A·a)
• Operating Current Density: In seawater, up to 600 A/m²; in freshwater, up to 100 A/m².
• Service Life: ≥25 years
• Operating Temperature: ≤ 40°C (104°F).

APPLICATIONS

• Cathodic protection for ship hulls.
• Cathodic protection for steel structures in freshwater, brackish water, and seawater environments, such as gates and tank interiors.