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Our Certified Propeller Technicians perform sophisticated Class-approved underwater propeller repairs, which include straightening large bends, precision cropping and design modifications worldwide.

Underwater Propeller Repair Services

  • Straightening large bends.
  • Removal of damaged blade sections.
  • Crack repair and propagation control.
  • Restoration of hydrodynamic edge contours.
  • Static balancing (calculations on-site).
  • Hydrodynamic balancing (calculations on-site).
  • Replacement of C.P. blades and blade seals.
  • Installation of energy saving fin propeller caps such as PBCF and EnergoProFin.

Have an underwater maintenance or repair service request?

Subsea Global Solutions provide underwater maintenance and repair services to your marine assets. Contact us to request a service quote today!
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Underwater Design Modification Solutions

  • Pitch and camber alterations using underwater pitch meters.
  • Diameter and blade area reduction.
  • Correction of propeller induced engine overload.
  • Contour modification to eliminate cavitation.
  • Edge modification, including anti-singing edge correction.

Underwater Propeller Blade Straightening

Learn how Subsea Global Solutions performs underwater propeller blade straightening to repair large propeller bends.

Case Studies

Hull Breach on Tanker

During cargo operations, a submerged pile pierced through the hull. Subsea Global Solutions worked together with owner and class to develop repair plan that included the design and installation of an engineered cofferdam.

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Offshore Oil & Gas

A Blue-Chip oil & gas company incurred several defects and cracks in a critical attachment member of an FPSO’s hull – these defects required repair to allow continued operation.

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Skeg Ripped from Azipod

3 month out of dry dock, galvanic corrosion caused heavy cavitation/erosion damage on PORT and STBD side rudders.

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Subsea Global Solutions Reseats Shifted Tailshaft Afloat and Executes a Stern Seal Repair

The client indicated that the tailshaft had shifted aft approximately 200 mm when the ship’s crew was doing maintenance on the shaft coupling. It resulted in the aft water seal losing contact with the liner, causing large amounts of water ingress into the stern tube.

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Subsea Global Solutions Completes an Afloat Rudder Stock Seal Replacement

This complex underwater repair was completed to the client's satisfaction in 5 days in conjunction with various other repair works. Subsea Global Solutions managed both the underwater and internal portions of this repair to ensure each phase was executed seamlessly.

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Underwater Propeller Blade Straightening – Cold Static Loading

Subsea Global Solutions can restore your propeller blades as a permanent repair, to OEM design geometry by cold static loading with our underwater propeller blade press.

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Double Bow Thruster Removal by Subsea Global Solutions

The benefits of removing a damaged bow thruster afloat are many. The customer was able to prevent further damage to the bearings and gears caused by the presence of seawater in the gear housing and the procedures allows the units to be overhauled prior to the vessels next dry-dock—or, they can be re-installed afloat by Subsea Global Solutions, which would help to eliminate the need for additional tug cost.

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Afloat Bow Thruster Blade Seal Exchange by Subsea Global Solutions

The project was executed with two Subsea Global Solutions teams working around the clock. While the vessel trimming process was in motion, the team onboard the vessel began to drain the oil from the thruster while the dive team began removing the bow thruster tunnel gratings to gain full access to the bow thruster.

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Scrubber Overboard Spool Pipe Repairs with 5 Year Warranty

The installation of complete SOx scrubber systems is entirely possible without taking the vessel out of the water. Subsea Global Solutions' involvement is focused on precision cutting of the hull penetrations for the sea chest openings and overboard spool pipe installation below the waterline.

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Subsea Global Solutions solves serious problems: Assisting a large, fully laden post-Panamax container vessel with steering issues

Subsea Global Solutions solves serious problems: Assisting a large fully laden Post-Panamax container vessel with steering issues. Subsea Global Solutions works with port authorities, class, and manufacturers to provide class-approved in-water float out removal, repair, and refit of a 110 mt rudder. Find out how our underwater inspection and survey services deliver practical, cost-effective solutions to a complex offshore problem. Subsea Global Solutions works with port authorities, class, and manufacturers to provide class-approved in-water rudder float out removal, repair, and refit of a 110 mt rudder. Helping owners safely reduce their risk exposure and related costs that would include diversions, delays, and downtime.

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Galvanic Corrosion on Rudders

3 months out of dry dock, galvanic corrosion caused heavy cavitation/ erosion damage on PORT and STBD side rudders.

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Trained & Certified Propeller Technicians

Our Certified Propeller Technicians perform sophisticated Class-approved underwater propeller repairs, which include straightening large bends, precision cropping and design modifications worldwide.
Upon completion of extensive on-site practical and formal training, our Technicians are qualified to accurately assess propeller condition and determine the best-engineered repair solution to maximize propulsive efficiency.

Class approved permanent repairs- previously possible only in a workshop after propeller removal - are now possible underwater using proprietary equipment and procedures.

Underwater Propeller Blade Straightening (Cold Static Loading)

Large deflections can be straightened underwater in hours; dockside or at anchor. The underwater straightening process entails many cycles of cold static loading applied in sequence throughout the deflection. Sections up to 50mm thickness can be restored to design geometry and approved by Class as permanent repairs using our proprietary cold static loading and precision laser geometry measurement equipment and procedures.

Subsea Global Solutions maintains a full range of purpose designed straightening equipment sizes to handle everything from tunnel thrusters to Super Yachts to ULCCs.

Fast Response

Straightening systems are designed and packaged for swift worldwide mobilization from key Subsea Global Solutions offices by air cargo or even as checked baggage on passenger flights.

CONTACT US NOW

Underwater Propeller Repairs

Hull Cleaning

Underwater Propeller Repair Services

  • Straightening large bends.
  • Removal of damaged blade sections.
  • Crack repair and propagation control.
  • Restoration of hydrodynamic edge contours.
  • Static balancing (calculations on-site).
  • Hydrodynamic balancing (calculations on-site).
  • Replacement of C.P. blades and blade seals.
  • Installation of energy saving fin propeller caps such as PBCF and EnergoProFin.

Underwater Design Modification Solutions

  • Pitch and camber alterations using underwater pitch meters.
  • Diameter and blade area reduction.
  • Correction of propeller induced engine overload.
  • Contour modification to eliminate cavitation.
  • Edge modification, including anti-singing edge correction.

Trained & Certified Propeller Technicians

Our Certified Propeller Technicians perform sophisticated Class-approved underwater propeller repairs, which include straightening large bends, precision cropping and design modifications worldwide.
Upon completion of extensive on-site practical and formal training, our Technicians are qualified to accurately assess propeller condition and determine the best-engineered repair solution to maximize propulsive efficiency.

Class approved permanent repairs- previously possible only in a workshop after propeller removal - are now possible underwater using proprietary equipment and procedures.

Underwater Propeller Blade Straightening (Cold Static Loading)

Large deflections can be straightened underwater in hours; dockside or at anchor. The underwater straightening process entails many cycles of cold static loading applied in sequence throughout the deflection. Sections up to 50mm thickness can be restored to design geometry and approved by Class as permanent repairs using our proprietary cold static loading and precision laser geometry measurement equipment and procedures.

Subsea Global Solutions maintains a full range of purpose designed straightening equipment sizes to handle everything from tunnel thrusters to Super Yachts to ULCCs.

Fast Response

Straightening systems are designed and packaged for swift worldwide mobilization from key Subsea Global Solutions offices by air cargo or even as checked baggage on passenger flights.

CONTACT US NOW

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