Onsite Crankshaft Refurbishment | Repair of Main Engine Crankshaft

Portable Crankshaft Grinding Machine is Ready for Dispatch

RA Power Solutions company based in New Delhi, India undertakes crankshaft refurbishment onsite. There is no requirement for disassembly and removal of the crankshaft from the engine block.

We specialize in onsite crankshaft refurbishment, providing a cutting-edge and efficient solution to the challenges faced by industries in need of crank

Our technicians who are well experienced can travel to your site on land or on a vessel with necessary inspection instruments and onsite crankshaft grinding and polishing machine and undertake the necessary onsite repair.

Following is the outline of the inspection and repair of the main engine crankshaft:

I) Inspection of Crankpin/Main Journal: It is important that the surface geometry of the crankpin or main journal is thoroughly checked such as roundness defect, loss of alignment, conicity, barrel form, surface finish, etc.

RA Power Solutions have inspection formats and all the observations of the surface geometry parameters as described above are recorded.

Crack Detection Test of Crankpin
Crack Detection Test of Crankpin
Inspection of Crankpin is in Process
Inspection of Crankpin is in Process

II) Polishing or undersize journals and crankpin:

On the basis of surface geometry reports, the available decision is taken in regard to polishing or grinding of the crankpin and main journal. In the event of minor bearing line marks, pitting, or rough surface it is recommended that these defects are removed only by the process of polishing of crankpin and main journal.

Grinding & Repair of Damaged Crankpin on Board a Vessel
Grinding & Repair of Damaged Crankpin on Board a Vessel

III) RA Power Solutions, the main engine crankshaft repair company uses the latest lightweight and easy-to-operate onsite crankshaft grinding and polishing machine which improves the surface finish without under-sizing of crankpin/main journal diameter.

IV) We recommended the inspection and polishing of crankpins or main journals periodically whenever the engine is taken up for major inspection or overhaul.

If the surface geometry is not within limits specified in the manual by the engine manufacturer and exceeds the tolerance the undersize of journals/crankpins is recommended.

V) Repair of engine crankshaft is recommended in case of severe damage and it becomes necessary to recondition the journal/crankpin by grinding to the next undersize or depending on the availability of undersize bearings.

RA Power Solutions uses high-precision onsite crankshaft grinding machine to undersize the crankpins and tolerance is maintained strictly as per the manufacturer’s specifications. Crankshaft regrinding of large diesel engines up to 700 mm in terms of diameter is undertaken.

We are fully equipped to extend emergency crankshaft repair services through our experienced technicians as they possess valid Indian CDC and can fly all over the world on short notice. The job of crankshaft refurbishment and emergency crankshaft repair is possible even while sailing the vessel. The onsite crankshaft grinding machine is designed to generate minimum vibrations which facilitates maintaining close tolerance.

We specialize in under-size and special-size bearings

under size and special size bearings
Undersize and special-size bearings

The author of this blog is Mr. Raj Shahani (Managing Director of RA Power Solutions). He has forty years of experience in the field of crankshaft repair of high-capacity marine and diesel engines.

For any queries on onsite crankshaft refurbishment, repair of main engine crankshaft, crankshaft inspection onsite, and grinding & repair of damaged crankpin on board a vessel please drop us an email us at rajshahani@rapowersolutions.com, or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.