• CPP hubs repaired by laser cladding
  • Cylinder head “got a new life” after laser cladding of valve seats
  • Meet us at a virtual live event 2.-5. Feb. 2021
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I am happy to share our first 2021 newsletter with you. I hope the year will keep us all busy with maritime projects and I will look forward to sharing our news and cases with you.

In this newsletter, I want to share 2 repairs carried out in our workshop in January. Cases where our laser cladding technology was very beneficial for achieving a perfect repair solution.
CPP hubs repaired by laser cladding
Two sister vessels were undergoing a planned overhaul at a shipyard in Europe, and MarineShaft repaired the CPP hubs, which we received in our workshop in Hirtshals.

The seal areas on the propeller hub needed repair due to wear, and we applied 2 layers of bronze material, each layer of 0.8 mm.
Machining after laser cladding is always necessary.

Along with the 2 hubs we had received 8 new bearing bushes. The inner diameter of the bush was machined to final dimension and the hub and bush were fitted before returning the parts to the shipyard to complete the overhaul.

Whether you need a subcontractor to participate partly in your repair job or to take care of the entire overhaul/repair, I hope you will keep our services in mind.

Repair advantages of using laser cladding for hub repairs are:

100% binding of the bronze material to the base material.
Because laser cladding leaves a minimum of heat input, it does not disrupt the base material.
We used our new designed turning table for laser cladding of these two hubs. Look at the short video above.
Cylinder head valve seats repaired by laser cladding
Cavitation under the cylinder head valve seats is a common problem.  
This was also the case for a recent repair we carried out.

The tolerance of 2 of the cylinders valve seats could no longer be maintained, even with a valve insert, and the solution was to either replace or rebuild by laser cladding.

MarineShaft rebuilt the seats to the original dimensions using laser cladding.

We applied 3 layers of  Inconel 625 followed by machining to the original size.
This repair has prolonged the service life of the cylinder head substantially.
SMM 2021 from Feb. 2. – Pavilion of Denmark presents virtual live events
Along with many other Danish maritime suppliers, MarineShaft will participate in this live event next week 2.-5. Feb. 

We are in Hall 3.  

Every day at Hrs. 10.00 GMT+1 you can join us for a 15 min. live presentation in our breakout room.

                 Tuesday 02.02                          Subject: Advantages of cold straightening   
                 Wednesday 03.02                     Subject: Advantages of laser cladding
                 Thursday 04.02                         Subject: Advantages of micro welding
Hope to see you 

Best regards
MarineShaft A/S

Hanne Magnussen
Marketing Manager
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Copyright 2020 MarineShaft AS ®, All Rights Reserved.
Pier 2  I  9850 Hirtshals  I  Denmark  I  Tel. +45 96560202

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MarineShaft · Pier 2 · Hirtshals 9850 · Denmark

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