Onsite Grinding of Wartsila VASA has been executed by RA Power Solutions recently at a reputed diesel power plant in Madagascar. It was reported that one crankpin of the Wärtsilä VASA engine model 12V32LN experienced a crankpin bearing failure, which caused damage to Crankpin Number One of the crankshaft. The crankshaft details are given below:
| S. No. | Crankpin Details | |
| 1 | Engine Make | Wartsila VASA |
| 2 | Engine Model | 12V32LN |
| 3 | Crankpin Diameter Standard | 270.00 MM |
| 4 | Crankpin Bearing Width | 98+98 MM |
| 5 | Grinding of Crankpin Number | #01 |
| 6 | Main Journal Diameter Standard | 300.00 MM |
| 7 | Polishing Of Main Journal Number | #01, #03 |
| 8 | Place of Execution of Grinding of Crankpin | Diego Site Madagascar |
| 9 | Name of Shipping Company | Reputed Company from Madagascar |
| 10 | Date Of Execution | 6th June to 20th June 2025 |
| Crack Detection Test of Wartsila VASA Engine Model 12V32LN By MPI | Hardness Test of Wartsila VASA Engine Model 12V32LN |
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Main observations of the crankshaft of Wartsila Vasa are :
(I) On a visual inspection of crankpin number one, having a standard diameter of 270 mm, it was found to be damaged with deep line marks, pitting, and a rough surface.
(II) The crankpin was subjected to dimensional inspection after cleaning the embedded bearing material. The following measurements were observed for Crankpin Number One:
Minimum Diameter: 269.45 mm
Maximum Diameter: 269.89 mm
Ovality Observed: 0.55 mm
(III) All other crankpins were visually inspected, and no damage or marks were observed.
(IV) As per standard procedure, Crankpin Number One was subjected to a crack detection test using the MPI process, and hardness testing was also carried out. No abnormalities were observed
(V) Crankpin Number One was undersized by on site crankshaft grinding equipment. The diameter was reduced by 1 mm to control ovality and to remove the line marks observed after the bearing seizure. The final crankpin diameter was maintained as 269.00 – 0.02 mm.
| Assembly of Crankshaft Grinding Machine on Damaged Crankpin | Onsite Grinding Under Process |
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RA Power Solutions, during its long-standing presence in the industry, has executed repair of over 1300 Wartsila engine crankshafts of various models. The most popular models serviced include WARTSILA 12V32 and WARTSILA 18V32, widely installed in diesel power plants around the world.
At RA Power Solutions, we specialize in on site crankshaft grinding for Wartsila, Yanmar, MAN, and MAK engines, offering a reliable and cost-effective solution to repair damaged or worn crankshafts without removing them from the engine.
This advanced service not only eliminates the need for engine disassembly and costly transportation but also significantly reduces downtime. Using state-of-the-art portable grinding equipment, our expert technicians restore the crankshaft’s dimensions and surface finish to OEM standards, ensuring optimum engine performance.
| Wartsila VASA Engine Model 12V32LN Grinding Under Process | Crankpin Inspection Under Progress Before Polishing |
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With over four decades of experience, we’ve successfully delivered onsite crankshaft grinding services across the globe—including Burkina Faso, Bangladesh, Dubai, Indonesia, Singapore, and many other ports and shipyards worldwide. No matter where your vessel or power plant is located, RA Power Solutions is ready to respond with precision, speed, and expertise.
Get in touch with us today for expert services in onsite crankshaft repair, crankpin polishing, crankshaft reconditioning, and in-situ crankshaft grinding. Our team is equipped to provide fast and reliable solutions, wherever your engine is located. For inquiries or service requests, please email us at rajshahani@rapowersolutions.com or info@rapowersolutions.com, or call us at +91 9582647131 / +91 9810012383. We’re here to support you—anytime, anywhere.
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