Expandable Rod Anode (EAR)

Expandable Rod Anode (EAR)

The CerAnode EAR Expandable Rod Anode is a high-performance, factory-assembled MMO mixed-metal-oxide rod designed for impressed current cathodic protection (ICCP) systems. Its unique expandable design lets it be tensioned once installed, enabling optimized current distribution over long runs and variable environments. The EAR delivers reliable protection while minimizing field handling and installation risk.

Built on APS Materials’ decades of materials-science expertise, the EAR offers stable current output and long service life in a compact footprint. This makes it ideal for applications where space is limited, or where a customized, high-current, low-maintenance solution is required.

Key Features & Benefits

High-Performance Coating

• Uses durable MMO coating on a titanium substrate.
• Provides consistent, long-life current output with minimal degradation.

Expandable Design

• Tension-adjustable rod allows flexibility in deployment and length.
• Helps ensure even current distribution across varying bed geometries.

Low Resistance & Reliable Connection

• Factory-sealed, swaged electrical connection for ultra-low resistance.
• Designed for high integrity, low-loss operation in impressed current (IC) systems.

Long Service Life & Durability

• Resistant to abrasion, environmental stress, and electrolyte exposure.
• Ideal for long-life ICCP, reducing maintenance and replacement costs.

Typical Applications

• Deep or shallow ground bed cathodic protection systems
• Pipeline anode systems; especially long or irregular runs
• Marine and offshore applications
• Subsea infrastructure and risers
• Power transmission corrosion protection systems
• Custom CP designs requiring flexible anodes