be_ixf;ym_202009 d_23; ct_50

Stern tube line boring on passenger vessel in Saudi Arabian shipyard

Boring rectifies vibration problem

Namma Shipping Lines, owner of the Mahabbah, a 240,550 DWT Passenger/Ro-Ro vessel, contacted Goltens to investigate and rectify long-term shaft vibration issues. The vessel, over 40 years old, had experienced normal wear and tear on the shafts and resultant damage to all of the bushes.

The vessel would be drydocked at Jeddah Shipyard and Goltens was engaged to perform calibration and alignment checks on the Port and Starboard stern tubes and to line bore the shafts as required.

Goltens mobilized technicians, set up the tooling and performed the alignment checks and reported the results to the owner. Based upon the findings both Port and Starboard stern tubes required line boring .

Goltens fabricated the required mounting brackets to mount the line boring tools and bored the three 1.8, 1.4 and 0.75 meter sections over a length of about 18 meters to the required diameter.

  • The Mahabbah

  • a 240

  • 550 DWT Passenger/Ro-Ro vessel

  • Calibration checks on stern tube to determine ovality/extent of damage

PROJECT FACTS

MAHABBAH
Vessel Type: Passenger Vessel/Ro-Ro
Main Engine: 2 x Pielstick 18PC2V-400
Vessel Tonnage: 1,968 DWT
Shaft Diameter: 460mm

STERN TUBE BORING REPAIRS

  • Calibration & Alignment checks Port/Starboard stern tubes
  • Line boring of Port & Starboard Stern Tube sections of 1.8, 1.4 and 0.75 meters sections over a length of about 18 meters to the required diameters of 464.00, 462.00 and 460.00mm.

RESULTS

Goltens’ team successfully line bored the largest stern tubes ever undertaken in the Jeddah Yard eliminating the long term vibration problem with the Port and Starboard shafts.

CUSTOMER TESTIMONIAL:

“We opted for Goltens for their strong reputation & core specialization in In-Situ precise machining . With their quick mobilization of team & specialized tooling & necessary assistance from Jeddah Shipyard, the boring was performed to our contentment and within the time frame. We would definitely utilize Goltens for any such specialized requirement in future.” K.S. Abdul Majid Bunker Operations Manager Namma Shipping Lines

Download a PDF of this Resource

(Right click and select "Save File As..." or "Save Link As..." to save)

Download Now
Dev Tool:

Request: resources/in-situ-stern-tube-line-boring-repair-on-passenger-vessel
Matched Rewrite Rule: resources/([^/]+)(?:/([0-9]+))?/?$
Matched Rewrite Query: resources=in-situ-stern-tube-line-boring-repair-on-passenger-vessel&page=
Loaded Template: single-resources.php
Search Goltens ×