Crankshaft Grinding & Repair Services | Crankshaft Reconditioning | Crankpin Machining – RA Power Solutions

RA Power Solutions undertakes onsite crankshaft grinding and repair, crankpin reconditioning, and crankpin machining up to a diameter of 700 mm. It is observed that due to serious accidents sometimes the radius fillet of the crankpin or main journal is damaged and it is difficult to undertake the crankshaft repair onsite without removing the crankshaft from the engine block and transporting it to the designated workshop.

With more than forty years of experience in this field, we have added a portable onsite crankshaft grinding and polishing machine which can undertake crankshaft grinding and crankshaft polishing without taking the reference of radius fillet of the crankpin or crank main journal thus saving the crankshaft from rejection.

**Inspection of Crankpin on Board a Vessel**

**Inspection of Crankpins is in Process**

It is our experience that the cost of the crankshaft is very high, and in the case of high-capacity engines it works out to be 20 to 25% of the cost of the engine. Considering this fact, it is most important that the job of crankshaft grinding and crankshaft repair is entrusted to the company which has experience in repairing the crankshaft successfully. With the experience of four decades in this field and successfully repaired more than 10,000 crankshafts, we are considered to be leaders in this field and are trusted by the shipping companies, diesel power plants, and engine manufacturers for repair of crankshaft strictly as per the specifications and tolerances stipulated by the manufacturer.

The timely inspection and repair of the crankshaft are again of great importance. We have a team of engineers who can fly on short notice for the inspection and repair of the crankshaft to any part of the world. The crankshaft repair undertaken by us is guaranteed satisfactory performance.

Our crankshaft grinding services have the following features:

Onsite machining, grinding, and polishing of crankpins up to 700 mm.
Onsite machining, grinding, and polishing of all cylindrical shafts including turbine, alternator, pump shafts, and tail shaft up to the diameter of 700 mm.
Repair of radius fillet by grinding and polishing.
Portable pneumatically, lightweight crankshaft grinding machine which can be taken to any site all over the world.
All technicians having valid CDC can sail on the vessel.

The author of the blog is Mr. Raj Shahani, Managing Director of the company. He is having 40 years of experience in providing services related to engine repair and overhauling, crankshaft grinding and polishing, crankpin reconditioning, crankshaft repair, and many more.

Contact us at rajshahani@rapowersolutions.com or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383 for more information.

Grinding and Polishing of Crankshaft | Repair of Crankshaft | Crankshaft Reconditioning – RA Power Solutions

RA Power Solutions with an experience of forty years provide you with a team of experienced technicians who repair crankshaft onsite, overhaul and maintenance of diesel engine, metal stitching, grinding and polishing of crankshaft, and all the repair jobs related to the engine room on a vessel or land-based diesel power plants. We possess precision and the latest design of equipment to execute the repairs strictly as per international norms and maintain the tolerances stipulated by the manufacturer.

**Crankshaft Grinding & Polishing in Diesel Power Plant**

Crankpin Machining by Onsite Crankshaft Grinder

RA Power Solutions is the only company that designs its own tooling according to the space available at the site which helps us to grind and maintain the crankshaft tolerances as per the manufacturer’s specifications. The main advantage of onsite machining and onsite reconditioning of crankshaft is that there is no need for striping down the equipment which in most of the cases is not possible due to various restrictions.

RA Power Solutions being an Indian company execute the repair of the crankshaft on the lowest prices in comparison to the European companies who used to dictate their prices and conditions without compromising on quality.

The onsite crankshaft repair services are extended to all types of industries: petrochemical, offshore and mining, steel, cement and manufacturing plant, marine and sugar plants, etc. We are confident of our quality and have executed repairs of more than 10,000 crankshafts worldwide. We have saved many crankshafts from rejection. Clients can also avail of our consultancy services which after inspection of the crankshaft advise the various methods of repair of crankshaft on site.

**Inspection of Crankpin is in Process**

**Repair of Crankpin by Specialized Tooling due to Space Constraints**

We also provide services related to engine repair i.e. turbine shaft repair, alternator shaft repair, pump shaft repair, grinding and polishing of crankshaft, onsite machining, crankshaft machining, crankshaft grinding & polishing, propeller shaft repair, metal locking & metal stitching of engine block, rebabbitting of bearings, connecting rod repair, etc.

The author is Mr. Raj Shahani, Managing Director of RA Power Solutions Pvt. Ltd. He has 40 years of experience in working on large crankshafts and Diesel Engines.

For more information regarding the grinding and polishing of crankshaft, crankshaft polisher machine and crankshaft reconditioning please email us at rajshahani@rapowersolutions.com or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

Crankpin Grinding | Crankpin Repair by Insitu Crankshaft Grinding Machine- RA Power Solutions

Crankpin grinding, and crankpin repair by in situ crankshaft grinding machine is offered by RA Power Solutions through a highly motivated team of technicians who have the experience of four decades in crankshaft grinding and crankshaft repair. It is important that the crankshaft is initially inspected by experienced technicians in order to detect the fault after the damage or accident.

**Inspection of Crankpin Under Process**

The following are the major parameters that are examined before the repair of the crankshaft:

Minimum and maximum diameter of the crankpin and main journal, taper, and ovality is checked.
Run out of main journals and deflection readings are taken to verify the loss of alignment.
A complete non-destructive test using MPI and ultraviolet lamp for heat cracks is undertaken of crankpins and the main journal of the crankshaft.
The crankshaft is also subject to a hardness test.

Based on the preliminary inspection reports prepared by the technicians the repair procedure is planned. The onsite crankshaft grinding machine used for the crankshaft repair is lightweight and is placed on the damaged crank pin from the inspection window of the engine block. There is no requirement of removing the crankshaft from the Entablature and send it to the workshop as bench-type grinders are now outdated.

The crankshaft grinding and crankshaft polishing is undertaken to maintain taper and ovality, surface finish as per the OEMs requirement. RA Power Solutions have facilities to undertake in situ crankshaft grinding, crankshaft polishing, and repair of crankshaft up to the diameter of 700 mm without removing the crankshaft from the engine block.

**Inspection of Crankshaft by Latest UV Torch**

**Crankpin Grinding of Diesel Engine While Vessel is Sailing**

During and after the repairs, all the major technical parameters are checked and a calibration report is prepared. It is possible to execute the crankshaft grinding and crankshaft repair on board a vessel while it is sailing. Technicians have seaman passports and can travel to any part of the world in the shortest possible time, thus attending to the damaged engine in a short time. We are class-approved and stand to guarantee the satisfactory performance of the crankshaft after repairs.

**Crankpin Grinding and Crankpin Polishing is in Process**

We are commonly working on the following engines:

Wartsila, Daihatsu, Mirrless Blackstone, Yanmar, Allen, MAK, MAN, B&W, Sulzer, Caterpillar, Fiat, Mitsubishi, MTU, Cummins, Deutz, Nohab Polar, Wartsila 12V32, Wartsila 18V32, Pielstick, Bergen, Detroit Diesel, MaK 552 , MaK 453, MaK 451 AK, Niigata, MaK 452 AK, Ruston, Lister Blackstone K8 Major MK2, Volvo Penta, etc.

For more information on insitu crankshaft grinding repair, insitu crankshaft repair and grinding, onsite grinding machine supplier, and repair of crankshaft contact us at rajshahani@rapowersolutions.com or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

Onsite Crankshaft Repair Services India by RA Power Solutions

RA Power Solutions offer onsite crankshaft repair services for the last four decades to the land-based engine and engines installed on vessels.

The crankshaft needs repair or grinding in case of the following defects:

Development of excessive taper and ovality more than the tolerances stipulated.
Loss of alignment of the crankshaft.
Seizure of bearing, development of line marks.
Development of pitting and rough surface of crankshaft main journal and crankpin

**Crankshaft Repair Services While Vessel is Sailing**

**Crankshaft Grinding Services- Power Plant**

The onsite repair services of crankshaft help in getting the engine back into operation in minimum time. Following crankshaft grinding services are offered by RA Power Solutions at Sea, on land, or in the shipyard:

Onsite Crankshaft Repair
Crankshaft Straightening
Onsite Crankshaft journal repair
Crankshaft Regrinding
Onsite Crankshaft polishing
Onsite Main bearing Regrinding
Onsite Crankshaft machining
Orbital crankpin machining/regrinding
Main bearing machining
Insitu Main bearing Main Journal Polishing

Crankshaft Grinding being done on a Small Crankpin Width — **Crankshaft Grinding is being done on a Small Crankpin Width**

**Crankpin After Grinding by Crankshaft Grinding Machine**

RA Power Solutions has technicians who are well-trained and have executed successfully more than 11,000 jobs of crankshaft repair. We are also considered to be the lowest-priced in the industry.

For any services related to crankshaft refurbishment, crankshaft grinding, crankpin polishing, onsite crankshaft grinding repairing service, crankshaft grinding and repair onsite, or maintenance and repair services, please free to write us at rajshahani@rapowersolutions.com or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

Repair of Crankshaft – RA Power Solutions

Reduce Cost And Breakdown Time By Onsite Repair Of Crankshaft

Onsite Crankshaft Grinding and Polishing Machine

The failure of crankpin and main journal bearing causes serious damage to the crankshaft which are as following:

Development of excessive taper and ovality in Crankshaft, Crankpin and Main Journal.
Development of crack
Abnormal increase and decrease of hardness
Loss of alignment of crankshaft resulting to the increase in deflection readings.
Development of bearing line marks, pitting, local depression
Damage of radius fillet and lube oil profile

The onsite crankshaft grinding equipment developed and manufactured by us is capable to undertake grinding and polishing of crankshaft in one setting. The tolerances after crankshaft repair are strictly maintained as per the manufacturer’s specifications.

We have a highly trained skilled team of technicians who are deputed to the plant site or on a vessel in a minimum possible time. The process followed by us for repair of crankshaft is faster, more cost-effective and convenient. It of course avoids removal of crankshaft and transport to the workshop.

The repair of crankshaft executed by RA Power Solutions Pvt. Ltd is approved by leading inspection agencies including Lloyds, DNV, and many other inspecting agencies. For more information, please write us at rajshahani@rapowersolutions.com or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.