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

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

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.

The post Machining of MAN B&W 5L16/24 Crankshaft appeared first on Crankshaft Grinding Repair.

RA Power Solutions is the only company in the world that designs and manufactures onsite crankshaft grinding machines ranging from 35 mm to 700 mm in terms of diameter. The design and manufacturing of crankshaft grinding equipment for small diameters and with hands-on expertise, facilities, and experience is done by us. We were recently approached by one of our clients regarding the failure of YANMAR Diesel Engine 6N18AL-DV 450 kva. crankshaft.

The crankshaft’s major details are as follows

As we can see from the above table YANMAR Diesel Engine 6N18AL-DV 450 kva has a crankpin diameter of 145 mm and a bearing width of only 65 mm.

The team of RA Power Solutions technicians was sent on board the vessel which was sailing near the SUEZ canal on-boarding the vessel, the inspection of the crankshaft was conducted, and the following observations were made.

• All the crankpins having a diameter of 145 mm and bearing width of only 65 mm had bearing line marks, pitting, taper, and ovality ranging from 0.16 to 0.28.
• The crankpin hardness and crack detection by MPI were done and no abnormality was observed.
• The deflection readings were observed within limits.
• It was decided to undertake the grinding of all the crankpins to the next undersize of 0.40 mm. All the crankpin diameter was maintained at 144.60 mm.
• The engine was assembled and load trials were taken.

Successful crankshaft grinding and crankshaft polishing of Yanmar diesel engine 6N18AL-DV 450 kva.

The machine manufactured by us is designed to be accommodated on the crankpin diameter and is capable of maintaining the tolerance within 0.02 mm. To our knowledge, none of the crankshaft grinding companies possess compact equipment. For your requirement of grinding of crankshafts of small diameter and bearing width contact RA Power Solutions.

This blog is written by Mr. Raj Shahani (Managing Director of RA Power Solutions). He has more than forty years of experience in the field of engine repair and is a technical adviser to various shipping and heavy industries based all over the world. For more information, about the Yanmar diesel engine and repair of the diesel crankshaft, please email us at rajshahani@rapowersolutions.com, or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

The post Onsite Repair of Crankshaft of YANMAR Diesel Engine 6N18AL-DV 450 kva appeared first on Crankshaft Grinding Repair.