Machining of MAN B&W 5L16/24 Crankshaft

About Machining of MAN B&W 5L16/24 Crankshaft

A leading shipping company based in Dubai contacted us regarding the failure of the crankshaft of a MAN B&W 5L 16/24 auxiliary engine. The vessel was on its way to Paranagu Port, Brazil.

The major crankshaft details of the MAN B&W 5L 16/24 are as follows:

S. No.	Crankpin Details
1	Engine Make	MAN B&W
2	Engine Model	5L 16/24
3	Crankpin Diameter Standard	130.00 MM
4	Crankpin Bearing Width	56.00 MM
5	Grinding of Crankpin Number	#03
6	Place of Execution of Grinding of Crankpin	Paranagu Port, Brazil
7	Name of Shipping Company	Reputed Company from Dubai, United Arab Emirates
8	Date Of Execution	05.03.2026 to 17.03.2026

In the case of the MAN B&W 5L 16/24 crankshaft, the crankpin diameter is relatively small at 130.00 mm, with a bearing width of only 56.00 mm. To facilitate onsite crankshaft grinding of the crankpin, RA Power Solutions has designed and developed a dedicated onsite crankshaft grinding machine. This machine can be inserted through the inspection window, allowing grinding to be carried out efficiently.

RA Power Solutions deputed technicians, along with equipment, and the following actions were taken:

i) Excessive ovality of 0.97 mm was observed on crankpin No. 03 of the auxiliary engine. Line marks were also noted.
ii) All other parameters, such as hardness, MPI (for crack detection), and visual inspection, were checked and found to be within limits.

iii) Grinding of crankpin No. 03 was carried out, and the diameter was maintained at 128.50 mm (undersized by 1.50 mm).

Advantages of Engaging RA Power Solutions for Repair of Crankshaft MAN B&W 5L 16/24

i) As a designer and manufacturer of onsite crankshaft grinding machines, we undertake modifications to the equipment, if required, to ensure the successful repair of the crankshaft.

ii) In this case, since the crankpin diameter is only 130.00 mm and the bearing width is 56.00 mm, we developed equipment capable of both grinding and polishing.

iii) We maintain a stock of bearings for popular engine makes and models, including undersized and special sizes. In this case, the required bearings were carried by our technicians, and the engine was commissioned immediately after the crankshaft repair.

Availability of Undersized Crankpin Bearings in Stock of MAN B&W Engine Model No. 5L 16/24

Sr. No.	Description
1)	Undersized bearing for Engine Model No. MAN B&W 5L16/24 having standard diameter of crankpin -130.00 MM
a)	Undersized Crankpin Bearing 0.50 MM
b)	Undersized Crankpin Bearing 1.00 MM
c)	Undersized Crankpin Bearing 1.50 MM
d)	Undersized Crankpin Bearing 2.00 MM
e)	Undersized Crankpin Bearing 2.50 MM

RA Power Solutions has consistently dedicated itself to delivering exceptional and prompt service. With over 46 years of experience, we have successfully repaired more than 10,000 crankshafts worldwide.

We have been regularly providing our services in South Africa, Nigeria, Cambodia, Tanzania, Brazil, Canada, Australia, Bangladesh, Greece, Haiti, Hong Kong, Indonesia, Kenya, Malaysia, Maldives, Kenya, Kuwait, Madagascar, Mexico, Nigeria, Oman, Philippines, Saint Lucia, Saudi Arabia, Singapore, Spain, Sint Maarten, 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.

Outstanding Precision and Surface Finish

Achieve meticulous tolerance levels with machining accuracy up to 0.01 mm on the MAN B&W 5L16/24 crankshaft. The system guarantees surface roughness less than Ra 0.2 m, significantly enhancing engine performance and longevity by reducing friction and wear.


Advanced Safety and Operator Interface

Safety is paramount with comprehensive features such as overload protection, emergency stops, and interlocked guarding, ensuring operator protection during use. The user-friendly touchscreen HMI with error diagnostics streamlines operation and troubleshooting for optimal productivity.


Versatile and Global Service Capability

With global on-site service support and customization options, the system accommodates various project requirements for marine diesel engines. Compliance with ISO 9001:2015 and CE certification confirms premium quality and international standards.