Propeller Shaft Grounding

A ship's propeller is insulated from the hull due to the lubricating oil film in the bearings. This insulation creates a potential difference between the shaft and the hull, which the ship's cathodic protection system (ICCP or galvanic anodes) cannot address. As a result, electrical currents can form, leading to pitting corrosion in the bearings and the propeller, causing damage and expensive repairs.

By installing a shaft grounding system, the electrical isolation between the shaft and the hull is eliminated. This system ensures a direct electrical path, allowing the propeller to be integrated into the ship’s cathodic protection system. This prevents stray currents from causing corrosion, extending the life of the propeller and bearings. Additionally, it improves overall ship efficiency by reducing maintenance costs and preventing unplanned downtime.

We offer tailored projection solutions for vessels, ensuring optimal protection and performance based on each ship's unique design and operational conditions. We deliver customized systems that effectively address corrosion risks and extend the lifespan of critical components.

Propeller shaft grounding complements cathodic protection by preventing stray currents from damaging bearings and other propulsion components. Together, these systems safeguard critical ship structures, reducing maintenance needs and extending the lifespan of the vessel's propulsion system.

We are one of Scandinavia's leading suppliers of cathodic protection since 1989. Our headquarters are located in Ramlösa, Helsingborg, in southern Sweden.