Thrusters are critical to a vessel’s manoeuvrability, positioning capability and overall operational performance. Damage to thruster components or sealing systems can quickly affect propulsion efficiency, increase operational risks and, if left unattended, result in costly downtime.

Dive Marine Services provides comprehensive underwater thruster repair services for tunnel thrusters, azimuth thrusters and azipod propulsion systems. Whether a project requires complete thruster replacement or targeted in-situ repairs, our engineering team develops a bespoke repair methodology tailored to the vessel, the nature of the damage and operational requirements.

Working closely with shipowners, Original Equipment Manufacturers (OEMs) and classification societies, we deliver safe, class-approved underwater repair solutions that minimise operational disruption while maintaining the highest standards of quality and reliability.

Thruster Repair Methods

We offer two primary approaches to thruster maintenance:

Full Thruster Removal and Replacement

Where major overhauls or extensive mechanical repairs are required, the complete thruster unit can be removed and replaced with a refurbished or spare unit. The removed thruster is then serviced at a specialised facility before being returned to operation. This approach significantly reduces vessel downtime where replacement units are available.

In-Situ Repairs Using Dry Enclosures

Where damage is localised, Dive Marine Services can carry out repairs without removing the complete thruster assembly. Using engineered cofferdams or custom-built dry enclosures, our technicians create a controlled dry working environment that enables seals, bearings and mechanical components to be repaired or replaced while the vessel remains afloat. This minimises operational disruption and helps shipowners avoid unnecessary dry dockings.

Thruster Types We Service

Tunnel Thrusters

Tunnel thrusters provide transverse thrust during low-speed manoeuvring, improving vessel control during berthing and unberthing operations. Common repairs include:

  • Shaft seal renewal
  • Blade seal renewal
  • Outboard box repair/replacement
  • Propeller or blade replacements

Azimuth Thrusters

Azimuth thrusters provide 360-degree directional thrust, making them essential for offshore vessels, tugs and dynamically positioned vessels. Our repair capabilities include shaft seal renewal, hydraulic repairs, blade seal renewal and propeller replacement, restoring propulsion performance while minimising downtime.

Azipod Thrusters

Azipod propulsion systems combine electric propulsion with full rotational steering, offering exceptional manoeuvrability and fuel efficiency. Dive Marine Services performs underwater repairs  using proven engineering methodologies tailored to each vessel.

Our repair capabilities include:

  • Shaft seal renewal
  • Propeller replacement
  • Slewing seal repairs

Why Choose Dive Marine Services?

Certified technicians with expertise in underwater propulsion systems

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Global rapid response teams for emergency repairs

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Minimised downtime through efficient repair strategies

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Eco-friendly methods that reduce the need for dry-docking

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Custom solutions for all major thruster brands and configurations

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