December news from MarineShaft

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Hope you have time to read our December news:

• Straightening of a 61-ton heavy propeller shaft. Video attached.
• Danish Maritime school´s training ship Georg Stage
• M/V Carmen Knutsen - propeller equipment
• Due to a heavy storm the vessel MSC Ines hit a building

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October and November met us with some unusual jobs.

Straightening of a 61-ton heavy propeller shaft
In our October news we mentioned a 61- ton heavy propeller shaft, Ø1310/860x12560mm, about to arrive by sea to our workshop for straightening. The repair went as planned and happy to share some pictures from the repair of this heavy piece and the reloading onboard a ro-ro vessel from Oct. 30th.

Georg Stage
In November we had the pleasure of taking a nice old lady into the workshop. We are talking about the Danish Maritime school´s training ship Georg Stage – a three-masted fully rigged sailing ship build in 1934. MarineShaft carried out a repair on the rudder/ rudderstock. Not very often we see a fully casted steel rudder/rudderstock. Due to cavitation, the pockwood bearing area needed repair, and we welded on Inconel 625 using our laser cladding robot equipment. After welding we did not need heat treatment and machining could be carried out right away and the old bearing refitted.

M/V Carmen Knutsen
The propeller equipment from the Norwegian tanker M/V Carmen Knutsen arrived by truck to our workshop for complete renovation. One of our service teams had previously been on location to carry out laser alignment and measurement of the drive shaft line and the stern tube bearing.

The propeller shaft was straightened and we machined the coupling end of the propeller shaft and the coupling end of the OD shaft to fit a new Wärtsilä coupling. The job was class-approved by DNV-GL.

MSC INES
Powerful winds can cause very bad damage to vessels but also to the surroundings. This was what happened in South Africa when the vessel MSC Ines was torn loose and hit a building at the harbor of Durban and suffered heavy damage to the rudder arrangement among others.

The impact caused big damage on ground as well

We have just got the order for this repair and we will manufacture a new rudderstock with the dimension Ø850x7254mm with 2 pcs. shrunk on 316L stainless steel liners Ø900/850x1215mm and Ø900/840x675mm. The repair will be followed by onsite mobile machining of the rudder cone.

We look forward to sharing more information about this repair in our next news coming to you in the beginning of 2018.

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MarineShaft · Pier 2 · Hirtshals 9850 · Denmark