Port of StocktonTelestackThe Wolfson Centre for Bulk Solids Handling Technology TOC EventsCimbriaVigan
  • Cimbria
  • Sailors Society
  • Port of Vancouver USA
  • Vigan
  • TBA Group
  • Port of South Louisiana

Hydrex restores efficiency to bulker

Hydrex restores efficiency to bulker

(Posted on 04/11/19)

When damage to propellers occurs due to impact with ice and other debris Hydrex can help you, even if the damage is quite extensive.

A ship with bent or cracked propeller blades might experience severe vibrations while sailing. The classification society might demand a repair before the vessel is allowed to continue its voyage. Hydrex teams can restore the propeller’s balance and efficiency, resulting in class approval.

By taking advantage of the in-house developed cold straightening technique, damaged blades can be straightened underwater, allowing the ship to return to commercial operations without the need to drydock.

If straightening is not an option, the affected area of the blade will be cropped. This is done to achieve the greatest possible efficiency. Cropping is carried out using Hydrex propeller blade cutting equipment.

The company’s teams can also carry out any other repair work on the propeller. Examples of this are the removal and reinstallation of entire propeller blades or replacement of the propeller seal ring.

For example, the four blades of a 190-meter bulk carrier’s propeller were severely bent. An on-site solution was needed to restore the propeller’s balance and efficiency. A team was therefore mobilized to C?m Ph?, Vietnam.

The divers started the operation with a detailed survey of the affected propeller blades. The inspection revealed that the four blades were bent over angles of 90 to almost 180 degrees.

The team then used the information acquired during the inspection to calculate and determine the exact measurements needed to modify the trailing edges of the propeller blades.

Next the divers cropped the blades and ground their edges to give them the correct radius. When the cropping was complete, they polished the blades to make sure that any remaining loss of efficiency would be minimal.

Latest News

Caravel and Fleet sign the Neptune Declaration

(Posted on 27/01/21)

The Caravel Group and Fleet Management have signed the Neptune Declaration on Seafarer Wellbeing and... Read more


ICS launches new flag state table

(Posted on 25/01/21)

The International Chamber of Shipping (ICS) has published the latest Flag State Performance Table (2020... Read more


RightShip and INTERCARGO new quality standard

(Posted on 25/01/21)

RightShip and INTERCARGO have announced the launch of an important new quality standard for the dry... Read more


Chevron keeps ships sailing amid VLSFO challenges

(Posted on 19/01/21)

Chevron Marine Lubricants has helped ship owner customers identify and manage a distinctive engine condition... Read more


Coles to leave Wallem

(Posted on 19/01/21)

The board of Wallem Group have announced that Chief Executive Frank Coles has resigned and will be leaving... Read more


Seanergy announces $179m restructuring

(Posted on 14/01/21)

Seanergy Maritime Holdings Corp. has announced that it has reached final agreements with certain of... Read more


IOMSR seafarer welfare app goes live

(Posted on 14/01/21)

The Isle of Man Ship Registry has formally launched the first ever seafarer welfare app designed by... Read more


DNV GL to change name to DNV

(Posted on 13/01/21)

DNV GL, the assurance and risk management company, will change its name to DNV on 1 March 2021. The... Read more


Yxney Maritime and Inmarsat agreement

(Posted on 10/01/21)

Norwegian-based scale-up Yxney Maritime and Inmarsat, the world leader in global, mobile satellite communications... Read more


ClassNK advises early BWMS installation

(Posted on 10/01/21)

Leading Classification Society ClassNK has been analyzing the retrofitting status of ballast water management... Read more


Bühler GmbHTBA GroupPort of Vancouver USACleveland Cascades LtdSailors SocietyPort of South Louisiana
  • Port of Stockton
  • Cleveland Cascades Ltd

Subscribe to our newsletter

Keep up to date with the latest global news in bulk cargo handling and shipping