Port of South LouisianaSailors SocietyMultimodal 2022ViganCimbriaTOC Events
  • Port of Stockton
  • Sailors Society
  • Van Aalst
  • Cimbria
  • Bühler GmbH
  • TOC Events

Whitepaper highlights benefits of Metalock process for shipowners

(Posted on 27/06/18)

A damaged main engine cylinder casing has now been returned to service in Bulgaria, after a repair operation lasting just seven days, saving almost eight months of off-hire time.

The shipowners, faced with an eight-month replacement estimate for the engine, called in local Metalock engineers who worked to perform a full repair. The entire operation took one technician, seven days and was conducted without removal or disassembly of the engine.

Details of the repair have been released by the Metalock International Association (MIA), in a whitepaper, ‘The Benefits of the Metalock Process', highlighting the loss to shipping caused by unfamiliarity with the Metalock technique.

Many of today’s engineers, says the whitepaper, were simply never taught about metal stitching, and believe their only option to deal with cracked machinery is welding or replacement. Since welding cast iron is at best a sticking plaster approach, owners can be faced with enormous replacement bills and long periods off-hire. A new campaign by MIA now aims to fill the knowledge gap.

“We want to restore a vital missing tool of the Chief Engineers’ toolbox” says Andre Mortimer, President, of the Metalock International Association, which has member companies in over 70 countries. “Between 70 and 90% of Metalock repairs by our members are done over previous welding attempts. Welding is notoriously fragile on cast iron – stitching the metal is the most effective, long term solution.”

“Metalock has been an established technique dating back to the second world war, but we now have a lost generation of Engineers who received little or no training on the procedure. The technique offers the ability to repair the cast components of machinery without removal, disassembly and repairs can be conducted even while at sea.” continues Mortimer.

The Metalock metal stitching procedure, is often recognised by Class Societies for permanent repairs in these areas, and has been in use since the 1940s. The procedure requires easily transportable equipment and can be completed within a few days and in some cases hours. The finished repairs can achieve up to 90% of the strength of the original metal piece and since no hot work is involved, repairs can be made to machinery without removal and without concern for the presence of flammable or explosive materials.

Publication of the whitepaper coincides with an educational campaign aimed at Engineers and ship owners. MIA is also keen to stress that not all companies offering the technique have Association membership or certification.

“Like any repair technique, there are many wrong ways to do it.

“The training provided by MIA is thorough, and our members share knowledge continually through our seminars and conferences. We would recommend only approaching a member company.

“Engineers and owners can save a great deal of wasted time and money by bringing their understanding of the technique up to speed. Machinery breakages don’t happen every day, but everyone should know their options for the day they do”, concluded Mortimer.

Latest News

Liebherr sending three additional LHMs to Spanish terminals

(Posted on 25/09/22)

Boarding the Heavy Load Carrier MERI in the early hours of 5 September, three Liebherr mobile harbour... Read more


Nippon Paint’s Neogaurd reduces routine bulker maintenance

(Posted on 15/09/22)

The Nippon Paint Marine NEOGUARD anti-corrosive coating applied to the cargo holds of the 40,000dwt... Read more


Wärtsilä 25 engine paves way to maritime decarbonisation

(Posted on 09/09/22)

The technology group Wärtsilä has introduced its new Wärtsilä 25 medium-speed 4-... Read more


Konecranes hands over first Generation 6 MHC in Finland

(Posted on 09/09/22)

Oy Adolf Lahti Yxpila Ab (Adolf Lahti) and the stevedoring company Oy M. Rauanheimo Ab (Rauanheimo)... Read more


Water lubricated propeller shaft bearings found to reduce fuel consumption

(Posted on 07/09/22)

Peer-reviewed research by Thordon Bearings into the hydrodynamic lubrication efficiency of a ship&rsquo... Read more


Alfa Laval Test and Training Centre receives ammonia approval

(Posted on 07/09/22)

Authorities have granted approval for testing with ammonia at the Alfa Laval Test & Training Centre... Read more


Inmarsat launches Fleet safety to modernise safety communications

(Posted on 07/09/22)

Inmarsat, the world leader in global, mobile satellite communications, has launched Fleet Safety to... Read more


One million automated moorings completed for MoorMaster

(Posted on 03/09/22)

Cavotec’s MoorMaster automated mooring systems have completed more than one million moorings at... Read more


Relaunched Desmi cargo pumps support green transformation

(Posted on 03/09/22)

DESMI’s relaunched range of cargo pumps for liquefied gas plays an important role in the world... Read more


A new era begins

(Posted on 01/09/22)

Liebherr's portfolio of port and transshipment solutions has been expanded to include the all-electric... Read more


Bühler GmbHTBA GroupPort of StocktonVan AalstTelestackCleveland Cascades Ltd
  • Cleveland Cascades Ltd
  • The Wolfson Centre for Bulk Solids Handling Technology

Subscribe to our newsletter

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