DESIGN & ENGINEERING: Goltens’ retrofit survey team undertook the onboard survey and 3D laser scanning in less than 4 days. From the outset, the primary constraint of the scrubber part of the project was the limited size of the existing …
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TURBINE ROTOR SHAFT REPAIR SCOPE Complete inspection of the rotor shaft including hardness checks, MPI, measurement etc Machining of journal radius/fillets Machining of the shaft journal to undersize 1.00mm Honing and polishing of rotor shaft journal Fabrication of bluing dummy …
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REPAIR RESULTS: Once the engine was rebuilt, Goltens laser aligned the engine and the generator and flushed the lube oil system to clear any debris. The prescribed running in procedures and operational testing were accomplished on voyage after the dry-dock. …
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Read about how Goltens executed a detailed solution using its traditional in-place machining coupled with a low surface temperature laser cladding technology. To prove out the viability of the proposed repair, the repair process was tested on a scrap valve in …
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IN-PLACE MACHINING AND ANNEALING After the tender was awarded, Goltens in-place machinists first machined the crankpin to -4.5mm to remove all surface cracks leaving a hard spot 250mm x 120mm. Goltens then performed the annealing process and reduced the crankshaft …
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THE INSPECTION AND THE PROPOSAL During the inspection, Goltens learned that the engine had suffered the same casualty on the same cylinders 30 years earlier. The block had significant damage to the crankcase near the doors, liner landings and the …
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INSPECTION AND REPAIR PLANNING Goltens diesel experts were asked to inspect the damage and determined that the crankshaft could be salvaged within the rated diameter with in-situ machining and annealing. Crankpin journal number 7 (450mm diameter) and main journals number …
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Concept design and detailed engineering was done in The Netherlands. The agreement was to make one design for the four sister vessels. As the NK-O3 BlueBallast System is one of the bigger and more complex ozone …
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CRANKSHAFT REPLACEMENT AND REBUILD: Disassembly of engine and rigging of crankshaft from engine room and re-assembled of engine components. Full inspection of crankshaft including MPI test on all journals to ensure no crack Straightening of crankshaft and machining crankpins to …
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THE BIOWAVE™: The bioWAVE™ ( http://www.biopowersystems.com/ ) is being developed for utility-scale power production from ocean waves. Its nature-inspired design (biomimicry) combines high conversion efficiency with the ability to avoid excessive wave forces, enabling supply of grid-connected electricity at a …
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Goltens was called to answer these questions, when this nightmare turned reality aboard a 34-year-old rail vehicles carrier. Goltens specialists surveyed the engine and discovered, in addition to the large hole in the engine block, damage to the lower liner-landing …
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DANGEROUSLY CLOSE TO THE LIMIT The owner opted to go with a competitor and allowed them to machine more than 5.00mm, dangerously close to the 6.00mm limit, from the 600.00mm crankshaft diameter. With less than half a millimeter remaining within …
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CAREFUL PLANNING FOR PERFECT RESULTS The start of a job like this is very critical; after many meetings with the shipyard, turret designer, operator and the owners all parties were on the same track to ensure the project was executed …
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SCANNING IN THE US / DESIGN IN EUROPE Goltens Green in Groningen arranged for laser scanning to be completed by Goltens in the USA while the vessel was alongside during a scheduled port call. The scan data was then sent …
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Laser alignment was performed on the engine and the team chocked the engine with Chockfast® Orange. Once complete, the engine was flushed and checked by the Rolls Royce engineer and dock and sea trials were completed with no issues. The …
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THE PLANNING: The project required removal of the existing cement tanks and installation of new acid tanks. As this required a 20-meter by 5-meter opening to be cut in the main deck, it was decided that this was best accomplished …
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PROJECT FACTS SEABOARD PATRIOT BWT RETROFIT Ballast Water System: Hyde Guardian HG250GC System Capacity: 255 m3/h Customer: Seaboard Marine Vessel Type: Container Vessel HYDE GUARDIAN BWT SYSTEM RETROFIT SCOPE 3D Scanning, Survey and Modeling Detailed engineering including pipe isometrics, foundation …
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PROJECT FACTS 7 ENGINE OVERHAUL Vessel Type: Mobile Offshore Drilling Unit Work Location: Gulf of Mexico Engine Make/Model: HiMSEN 9L32/40 & 18V32/40 Engine Output: 4,500 kW & 9,000 kW Engines Overhauled: Six in-line & One V-type HIMSEN 9L & 18V …
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PROJECT FACTS Rudderstock Machining Location: Bahamas Vessel Type: Cruise Ship Journal Diameter: 870mm Journal Length: 1,115mm Material Removed: 0.80mm Machining Time: 5 days ON-SITE MACHINING SCOPE Single point cutting/machining of damaged rudderstock removing 0.80mm from the diameter for a finished …
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A 3D model of the Optimarin system was overlaid onto the 3D model created from the scan to show how the system fit. Once reviewed and approved by the owner, Goltens performed detailed engineering for all piping, foundations and related …
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PROJECT FACTS BERGEN M/E OVERHAULS Customer: SCF Swire Pacific Offshore Vessel Names: Pacific Endeavour Pacific Endurance Pacific Enterprise Engine Make/Model: Bergen B32:40 L9A Work Location: Voyage Repair/Russia BERGEN B32:40 L9A OVERHAUL SCOPE Dismantling of cylinder heads and cylinder liners and …
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PROJECT FACTS COLT PIELSTICK PC 2.5V16 Location: San Diego, CA USA Max Hardness Pre-Annealing: 580HB Max Hardness Post-Annealing: 333HB Original Main Journal Diameter: 330.00mm Finished Diameter: 327.00mm (-3.00mm) Thrust Face Machining: -1.00mm (fore/aft) COLT PIELSTICK 2.5 V16 ANNEALING AND MACHINING …
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DETAILED PLANNING AND PREPARATION: Goltens’ Technical Management attended the vessel to evaluate the project, determine space requirements and logistical obstacles. Additionally, leveraging the well- proven Goltens Green Technology process, undertook 3D laser scanning of the spaces to facilitate system modeling. …
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PROJECT FACTS NUCLEAR PLANT CRANKSHAFT REPLACEMENT Engine Make/Model: Worthington SWB-VEE-12 Engine Output: 3.5MW Project Duration: 61 Days SCOPE OF WORK PERFORMED Inspection of damaged crankpin #4 Complete disassembly of engine including ancillary equipment Removal and rigging of engine block to …
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PROJECT FACTS MV BEAGLE VI Engine Make/Model: Mitsui B&W 5L42MC Engine output: 4983 KW RPM: 176 RMP Original Diameter: 472mm Post Machining Diameter: 466mm Work Location: Kaohsiung – Taiwan IN-PLACE MACHINING SCOPE: Inspection of damaged Engine and Crankshaft including: In …
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