Category: crankshaft grinder

Repair of MAN B&W Model 5L 16-24 by Using Onsite Crankshaft Grinding Machine

MAN Engine Model no. 5L 16/24 is a very common installation on vessels and the engine is used as Generator. The Crank Pin diameter of MAN Engine Model no. 5L 16/24 is only 130mm and the bearing width is 56 mm. In other words, it is about 2 inches 

This makes the onsite crankshaft repair very difficult due to limited space in between the two webs. Most onsite crankshaft repair companies based in Europe don’t have the equipment and the technology to undertake grinding/ repair of crankpin of MAN Engine Model no 5L 16/24. The repair companies always suggest to remove it from the engine block and send it to workshop for crank pin grinding or reject the crankshaft.

We successfully executed the repair of the crankshaft of MAN Engine Model no. 5L 16/24. Details are as mentioned below:

S. NO Crankshaft Details 
1Engine Make MAN B&W
2Engine Model 5L 16/24
3Crank pin Diameter Standard 130 mm
4Crankpin Bearing Width 56 mm
5Place of execution of crankshaft repair Port of Castellon Spain

Details of Crankshaft repair job executed by RA Power Solutions technicians at a port of Castellon Spain.

  • The damaged crankpin was checked for taper & ovality and it was observed 0.49 mm.  
  • Deep bearing line marks were observed. 
  • All other parameters like hardness and crack detection by MPI were checked and no abnormality was found. 
  • The crankpin was ground to an undersize of 1.0mm.           
Damage of crankpin
Damage of crankpin
Radius fillet damaged
Radius fillet damaged

Supply of Undersize Bearing for MAN Engine Model No. 5L 16/24

It is obvious that whenever grinding is undertaken there is requirement of undersize bearing. In this case of MAN Engine Model no. 5L 16/24, RA Power Solutions arranged and supplied 1.0 mm undersize crankpin bearing to the client.

We maintain a large stock of standard & undersize bearings of crankpin & main journal of popular make & model of engines like Yanmar, Daihatsu, MAK and MAN B&W, etc. 

The Engine was commissioned in presence of our technicians and performance was found to be satisfactory. 

Hardness check of crankpin MAN B&W Model 5L 16/24
Hardness check of crankpin MAN B&W Model 5L 16/24
Engine of CME-MAN B&W 5L 16/24 Crankpin grinding
Engine of CME-MAN B&W 5L 16/24 Crankpin grinding
Crack detection by MPI
Crack detection by MPI
MAN B&W 5L 16/24 Crankpin under grinding progress
MAN B&W 5L 16/24 Crankpin under grinding progress
Crankpin after successful repair
Crankpin after successful repair
Crankpin after grinding & polishing
Crankpin after grinding & polishing

For more details on the crank pin grinding machine please email us at info@rapowersolutions.com, or rajshahani@rapowersolutions.com, Call at +91 9582647131,+91 9810012383.

Crankshaft Grinding Machine -Crankshaft Repair Tools- Mobile Machining of Crankshaft

In case of failure of crankshaft or bearing on a vessel/stationary power plant it results to extremely high cost for repairs and with long downtime. RA Power Solutions manufactures and exports onsite and insitu crankshaft grinding, and crankshaft grinding machine which saves considerable cost of repair and save time as disassembly of the crankshaft and transport to the workshop is not required.

Portable Crankshaft Grinding Machine
Portable Crankshaft Grinding Machine

The insitu crankshaft grinding machine performs and delivers the same quality standards which are achieved by old-designed, conventional bench-type crankshaft grinding machine.

Advantages of using RA Power Solutions Onsite Crankshaft Grinding Machine and Mobile Machine:

  • The company having more than 40 years of experience in grinding and repair of crankshafts of high-capacity marine and industrial engines and understands the importance of maintaining tolerances as per OEMs.
  • It is a highly advanced technology grinding machine which is designed to take the stress while machining and polishing of crankshaft, crankpin, and main journal.
  • Crankshaft Grinding Machine is lightweight and compact and can be easily taken to the site all over the world as accompanied baggage.
Crankshaft Grinding Machine Packed For Dispatch
Crankshaft Grinding Machine Packed For Dispatch
Crankshaft Grinding Machine Accessories Packed for Dispatch
Crankshaft Grinding Machine Accessories Packed for Dispatch
  • Customized tooling adapting to all makes of engine and models. Machine available in the range of 60 mm to 700 mm.
  • Onsite grinding of crankpin and main journal is possible with this grinding tool.
  • Onsite Crankshaft Machine is easy to operate and training is provided.
  • Machine body is made from titanium which results to the minimum vibration while in operation. Machines can be used on vessel while sailing.
  • The machine is designed to undertake onsite repair of crankshaft of all popular model of engines like Yanmar, Wartsila, Daihatsu, Man B&W, Mirrlees Blackstone, Ruston & Caterpillar, etc.

The company has sold more than 70 machines all over the world. It is highly recommended for repair workshops, power plants, shipping, and engineering companies.

For more information on crankshaft repair tools, and crankshaft grinding, please email us at rajshahani@rapowersolutions.com, or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

Grinding of Crankshaft on a Moving Vessel
Grinding of Crankshaft on a Moving Vessel
Grinding of Crankshaft in a Power Plant by Crankshaft Grinder
Grinding of Crankshaft in a Power Plant by Crankshaft Grinder
Grinding of Crankshaft on VBlock by Crankshaft Grinding Machine
Grinding of Crankshaft on VBlock by Crankshaft Grinding Machine