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MAK Engine 6M20 Crank Pin Grinding & Polishing on Board a Vessel at Mundra Port India

crankshaft — Thu, 10 Aug 2023 09:20:48 +0000

RA Power Solutions was called to repair the damaged crankshaft of MAK Engine model 6M20. Two technicians were deputed on board the vessel at Mundra Port in India.

The detail of the engine and crankshaft are given below

S. NO	Crankshaft Details
1.	Engine Make	MAK
2.	Engine Model	6M20
3.	Crankpin diameter standard	152 mm
4.	Crankpin Bearing Length	71 mm
5.	Place of execution of crankshaft repair	Mundra Port

The Inspection in detail was conducted of two numbers of the damaged crankpin. The excessive ovality in crankpin number 2 of 0.36 mm was observed. The crank pin no. five was also damaged and had deep depression and line marks. The inspection of hardness and crack detection were undertaken & were observed within limits.

RA Power Solutions used an onsite crankshaft grinding machine which can be placed & undertake the grinding of crankpins of small bearing length. In this case, the bearing length is only 71 mm. The crankpin nos 2 was undersized by 0.5 mm and no’s five was undersized by 1.0 mm & the final diameter was maintained at 151.00 mm.

Damage of crankpin of MAK Engine 6M20

Crack detection of crankpin

The crankshaft after the repair was jointly inspected with the ship superintendent & chief engineer and all parameters were observed within limits. The engine has been assembled during the presence of technicians on board the vessel and is performing satisfactorily. RA Power Solutions has been extending onsite crankshaft grinding services all over the world for the last forty-three years.

Crank pin polishing, a specialized service offered by RA Power Solutions, stands as a testament to precision and expertise in the field of engine maintenance and repair. This meticulous process not only enhances engine performance but also ensures longevity, making RA Power Solutions the trusted choice for crank pin polishing in the industry.

Crankpin after grinding & polishing

Picture showing Crankshaft after Machining and Grinding

For more details on the crank pin grinding repair, crank pin polishing, and MAK Engine 6M20, please email us at rajshahani@rapowersolutions.com, or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

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