We carry out various metallurgical repairs: propeller repair, blade repair, hub repair etc. for both Wärtsilä installations and installations of other manufacturers.
Metallurgic repair
A propeller is a vulnerable piece of equipment that can be seriously damaged by underwater objects. For all propeller or propeller blade damages, we can offer the service of our repair department - a team of dedicated, highly skilled technicians.
Besides repairs, we can also correct heavy running propeller by:
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Cleaning the hull and propeller
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Diameter reduction
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Changing the pitch by twisting the blades
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Trailing edge cutting
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Trailing edge bending
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Replacement with a propeller of a new design
Modifications can be carried out while the propeller is fitted on the shaft. This means that cutting and grinding can be carried out at ship repair yards, in dry dock or at pier side at trimmed position. The work can even be carried out offshore, depending on the weather conditions.
The Repair Department can also propose propeller modifications, working with hydrodynamic specialists.
Underwater Propeller Repairs
We offer a full range of underwater repairs, an option that decreases the vessel’s down time and eliminates the need for dry-docking. We can perform comprehensive shop-quality propeller repairs underwater, including cold straightening of bent blades, removing damaged blade sections, calculating propeller mass balance in accordance with ISO class standards and establishing hydrodynamic edge profiles.
Repairs are according to classification rules and all major repairs are supervised by an experienced propeller repair specialist or under the direction of the hydrodynamic propeller design department.
For Outboard shaft seals Wärtsilä Propulsion developed a unique procedure to replace the seals underwater guaranteeing the standard OEM repair guarantee.
Flying Squad Propeller Repairs
We have a group of over 20 class-approved welding technicians available to carry out propeller repairs at local ship repair yards all over the world. We are able to replace seals and cut or straighten out distortions underwater in a way that keeps propeller efficiency as high as possible.
We have specialised toolboxes available at several main hubs around the world. These containers are fully equipped with special developed propeller repair tools and consumables. Through this container we can:
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Reduce working time
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Operate independently of shipyards
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Reduce transportation time and costs
