About Crankshaft Repair While Sailing of Vessel
R A Power Solutions, with more than 46 years of experience in the field of onsite crankshaft grinding, has developed specialized processes, tools, and expertise to carry out onsite crankshaft repairs even while a vessel is sailing, with absolutely no requirement to stop the vessel for crankshaft repair.

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| Crankshaft Journal Scoring and Damage Auxiliary Engine Hyundai MAN B&W 8L28/32H |
Auxiliary Engine Crankshaft Failure Inspection Hyundai MAN B&W 8L28/32H |
We are capable of undertaking the inspection, grinding, and polishing of crankshafts with diameters of up to 700 mm while the vessel is in operation. Our onsite crankshaft grinding machines are specifically designed, and their metallurgical properties have been enhanced over time to effectively absorb vibrations encountered during the sailing of the vessel.
We have successfully executed hundreds of crankshaft grinding jobs while vessels were in operation, including under rough sea conditions. The tolerances in terms of taper and ovality are consistently maintained well within the specifications stipulated in the manufacturers manual.
Recently, we executed the repair of crankpins No. 1 and No. 4 of a Hyundai MAN B&W 8L28/32 engine, having a standard diameter of 230.00 mm. This job was successfully completed while the vessel was sailing from Mundra Port, India, to Coega Port, South Africa.
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| Crankshaft Crack Detection Using MPI 8L28/32H Marine Engine |
MPI Testing Process on Crankshaft Journal Hyundai MAN B&W Auxiliary Engine |
The repair of the Hyundai MAN B&W 8L28/32 crankshaft by RA Power Solutions during sailing resulted in significant cost savings for the vessel owners.
The details of the engine are as follows:
| S. No. |
Crankpin Details |
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| 1. |
Engine Make |
Hyundai MAN B&W |
| 2. |
Engine Model |
8L28/32 |
| 3. |
Crankpin Diameter Standard |
230.00 MM |
| 4. |
Grinding of Crankpin Number |
#01 and #04 |
| 5. |
Place of Execution of Grinding of Crankpin |
While sailing from Mundra Port, India, to Coega Port, South Africa. |
| 6. |
Name of Shipping Company |
Italy |
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| Crankshaft Journal After Repair and Polishing Hyundai MAN B&W Engine |
Auxiliary Engine Crankshaft After Reconditioning Hyundai MAN B&W 8L28/32H |
We have been regularly providing our services in Dubai, Greece, Haiti, Hong Kong, Indonesia, Malaysia, Maldives, Kenya, Kuwait, Madagascar, Nigeria, Oman, Philippines, Saudi Arabia, Singapore, Sri Lanka, Suriname, Thailand, Togo, United Kingdom, United States, Yemen, Zambia, etc.
For more information regarding crankshaft grinding services, please contact us at rajshahani@rapowersolutions.com or info@rapowersolutions.com or call us at +91 9582647131 or +91 9810012383.
Precision Repairs at SeaOur mobile crankshaft repair service operates directly on your vessel, eliminating the need to dock for maintenance. Utilizing advanced portable machining and grinding equipment, we achieve up to 0.02 mm repair tolerance. The process is suitable for various ship types, ensuring they remain operational while repairs are underway, even under changing sea conditions.
Minimized Downtime, Maximized EfficiencyWe perform all repairs during voyages, so your vessel's schedule remains uninterrupted. Our experienced marine engineers and technicians guarantee restoration quality while the ship continues its journey, leading to substantial cost and time savings. After completion, thorough testing and monitoring ensure dependable performance and longevity of the repaired components.
FAQ's of Crankshaft Repair While Sailing of Vessel:
Q: How is crankshaft repair carried out while the vessel is sailing?
A: Crankshaft repairs are performed on board using specialized portable grinding and machining equipment. Our skilled marine engineers conduct the process while the vessel is underway, ensuring minimal disruption to operation and schedules.
Q: What types of vessels are suitable for this on-voyage crankshaft repair service?
A: The service is designed for cargo ships, container vessels, oil tankers, bulk carriers, and offshore vessels with crankshafts up to 700 mm journal diameter, constructed from steel or alloy steel.
Q: When should a vessel consider on-board crankshaft repair?
A: Consider this service whenever there is evidence of crankshaft wear, scoring, or damage that risks further operational issues. Early intervention helps restore performance and prevents emergency breakdowns, all without needing to halt your voyage.
Q: Where can these repairs be conducted, and are there any location restrictions?
A: Our crankshaft repair services are available worldwide, as repairs are performed on the vessel irrespective of its location at sea, enabling maximum flexibility for global fleets.
Q: What is the benefit of performing crankshaft repair during the voyage instead of in port?
A: Performing repairs on board while sailing drastically reduces downtime and eliminates the need for costly port stops, allowing vessels to maintain schedules and reduce unplanned expenses.
Q: What processes are included in the crankshaft repair service while sailing?
A: Our comprehensive services include crankshaft grinding, journal machining, re-metalling, straightening, and radius fillet repair, all delivered using precise tools and expert technicians for maximum reliability.
Q: How is the quality of the repair ensured after completion at sea?
A: After repair, we conduct thorough post-repair testing and continuous monitoring to verify the effectiveness and durability of the restoration, ensuring safety and smooth operation before the vessel's voyage continues.