On Site Repair Service

Product Details:

RA Power Solutions successfully repaired a Wartsila 4L20 crankshaft on board a vessel while sailing. The vessel was owned by a reputed shipping company based in Kuwait. The crankshaft was removed from the engine block due to a serious accident that damaged the crankcase beyond repair.
The repair of the Wartsila 4L20 crankshaft was a complex and challenging task. However, the RA Power Solutions technicians were able to successfully complete the repair and the vessel was able to continue sailing without any problems.

Product Details:

Achievement of RA Power Solutions technicians in successful repair of the crankshaft of wartsila 4L20 engine

1. The onsite grinding of crankpins of wartsila 4L20 engine is complicated because of the fact that crankpins width is only 71 mm further the counter weights are positioned in such a way that it is difficult to insert the onsite crankshaft grinding machine.
2. Most of the companies based in Europe, Singapore and worldwide do not have the tooling to undertake the grinding of the crankpins of wartsila 4L20 due to its complicated design and small bearing width of 71 mm only.
3. RA Power Solutions with an experience of forty-three years in onsite repair of crankshaft is also the manufacturer and largest seller of onsite crankshaft grinding machines in the world.
4. As a manufacturer, we design the equipment according to the site requirements resulting in the successful repair of the crankshaft. Ours is the only company in the world that can undertake the grinding while sailing of the vessel.
5. We undertake onsite repair of the crankshaft of 700 mm diameter including Wartsila engines like 8L20, R22H,824TS,12V32,16v32, L32, ZAV 40, 6ZLA 40 etc.

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The video shows crank pin repair of Wartsila Vasa 32LN.The job of crankshaft repair of a wartsila engine has been executed in a cement plant based in nepal.The crankpin was damaged due to the seizure of the bearing.We regularly undertake onsite repair of crankshaft of all popular make of engines like Daihatsu, Yanmar, Wartsila, MAN B&W, Mirrlees Blackstone, Ruston, Allen, Caterpillar, SKL, Pielstick, Cummins, Deutz etc.
RA Power Solutions is ISO 9001:2015 (Quality Management System) & ISO 14001:2015 (Environmental Management System) certified approved company.
We have been regularly executing on-site crankshaft repairs and crankshaft grinding in Iraq, Iran, Dubai, Oman, Saudi Arabia, Qatar, Abu Dhabi, Sharjah, Ajman, Umm Al-Quwain, Fujairah, Bahrain, Kuwait, Antigua and Barbuda, Belize, Dominica, Dominican Republic, Malaysia, Indonesia, Madagascar, Vietnam, Grenada, Guyana, Haiti, Jamaica, Saint Kitts and Nevis, Saint Lucia, South Korea, Saint Vincent and the Grenadines, Trinidad, and Tobago, etc. 

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In case of damage of turbine casting due to an accident, it is easily repaired by metal stitching and metal locking process onsite. We undertake grinding and polishing of turbine shaft, manufacturing of turbine white metal babbitt bearing and rebabbitting of old white metal turbine bearing.

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RA Power Solutions was informed about the damage of crank pin unit no. 5 of MAN Diesel Engine Model No. 9L28/32 H on a vessel sailing near Indonesian Port.
Our team of two technicians arrived on board the vessel in a short time with the portable light weight crankshaft grinding equipment and instruments required to conduct the inspection. The VISA was obtained on arrival.

MAIN OBSERVATIONS OF CRANKSHAFT OF MAN DIESEL ENGINE MODEL NO. 9L28/32 H AFTER INSPECTION


i) The crankpin has standard diameter of 230.00mm and the crankpin bearing width is only 95 mm.


ii) The crankpin no. 5 was observed badly damaged due to the seizure of the bearing.The minimum & maximum size of crankpin was observed as following:


·         Minimum diameter of crankpin recognized: - 228.49 mm
·         Maximum diameter of crankpin recognized: - 228.86 mm
The above reading shows that the crankpin was already ground and was undersized by  1.00 mm.

The Ovality of 0.51 mm was observed considering the standard size after grinding of 229.00 mm.
iii) Hardness of the damaged crankpin was checked and was observed between 220 HB and 265 HB.
iv) The MPI for crack detection with high intensity magnaflux torch was conducted and no crack or abnormality was observed.
v) The deflection of the crankshaft was checked and was observed within limit.

Product Details:

RA Power Solutions is ISO 9001:2015 Certified company with 41 years of experience in successful repair of crankshaft of Main & Auxiliary engine, compressor, pump, forging equipment and crankshafts for all applications.

We offer crankshaft repair, inspection, crankshaft grinding and consultancy services all over the world to save the crankshaft from rejection.We have saved thousands of crankshafts which have been rejected by the engine manufacturers.Our technicians have valid seamen book and fly to any destination in the world in short notice


ADVANTAGE OF GETTING REPAIR OF CRANKSHAFT BY RA POWER SOLUTIONS:


i) we have been execute crankshaft repair of more than 10, 000, we are the leaders in the world.  
ii) We have the equipment & technical team know how to execute onsite repair of the crankshaft having a small diameter of 35 mm and to the large diameter of 700 mm.
iii) We are the only manufacturer and supplier in the world of onsite grinding  of crankshaft Equipment and can modify it as per the space available onsite for fitment of the equipment. This is the reason we execute the repairs where others fail.
iv) Having latest technology and equipment to undertake onsite grinding of crankpin and Main Journal having small Bearing width, the most reputed companies   based in Singapore, Europe and other countries do not have equipment available to work on the crankpin and Main Journal having small bearing width.

Product Details:

We are providing On Site Flange Repair Service to our esteemed clients. This is an effective process of repair on site especially for the components that are of heavy weight and of enormous size of large diesel engine, generators, compressor, turbine, rotating equipment etc. These services are available at leading market prices.