Wärtsilä Sea-Master Systems Tail shaft Condition Monitoring

The new Wärtsilä Sea-Master system collects real-time data, providing valuable information about the operational health of the tail shaft equipment of a vessel helping customers maximise uptime and lower lifecycle costs.

    Extend tail shaft reliability

    • The Wärtsilä Sea-Master system delivers a range of condition monitoring information along with data analysis and consultancy to enable you to have confidence in the ongoing performance of your asset.

    Reduce your total cost of ownership

    • Asset management & Cost control The Wärtsilä Sea-Master system brings you discrete data to help improve operational running, bringing down the total cost of ownership. Save costs with reduced dry docking scope of work activities and better predictive maintenance planning.
    • Enables extension of tail shaft withdrawal intervals for water lubricated systems. The Wärtsilä Sea-Master system is Approved in Principle by DNV∙GL and enables customers to meet DNV∙GL TMON requirements for unlimited intervals between tail shaft withdrawal surveys.

    Ensure full predictability during operations

    • Accurate Maintenance Planning By seeing the long-term trends in your tail shaft performance, you can make informed and robust decisions. With fully visible long-term performance data that can be shared beyond the engine room, the Wärtsilä Sea-Master system lets you identify long-term trends and introduce preventative maintenance predictability.
    Meet environmental legislation
    • With a water lubricated stern tube and condition monitoring, the Wärtsilä Sea-Master system helps you meet the requirements including TMON legislation, bringing the added benefit of an extension on tail shaft removal.
    Key component measurements

    The Wärtsilä Sea-Master system monitors critical components of the tail shaft.


    System suitable for all vessel types – new build and retrofits, water or oil lubricated shaft lines


    The main dashboard display changes between “Dials” or “System” animation for ease of interpretation.

    • Real-time data
    • Certified analytics
    • Health check reports
    • Predictive life cycle requirements
    Features and outputs of the panel system
    • Class approved stainless steel cabinet and panel
    • Self-contained enclosure for ease of installation
    • Touch screen colour display panel
    • Real time dash board display of primary sensors and values
    • Historical data trends
    • Alarm alerts – data capture and clearing protocols
    • Cabinet entry security
    • Data download security protocol
    DNV GL offers potentially unlimited survey intervals for water-lubricated tail shaft systems by introducing optional class notations TMON. This eco-friendly technology benefits all parties involved, provided it is coupled with an effective condition monitoring system capable of detecting deterioration at an early stage.

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