Crankshaft Grinding | Crankshaft Grinding Services | Crankshaft Machining – RA Power Solutions

RA Power Solutions undertakes crankshaft repair, crankshaft grinding, and polishing onsite all over the world. The company is extending 24/7 emergency service for repair of the crankshaft of main and auxiliary engines on board a vessel or land-based installations worldwide. We are having experience of 40 years in the field of engine repair and with the latest technology in the equipment, we are considered to be the most knowledgeable company in the world. Our response time in case of emergency is unbeatable. We have developed an onsite portable, lightweight crankshaft grinding machine up to the diameter of 700 mm which is kept ready all the time to be taken on the vessel or to any Diesel Engine installation all over the world.

**Grinding of Crankshaft is in Process**

The client has the definite advantage of awarding crankshaft repair, crankshaft grinding, and crankshaft machining work to us as we have carried out repair of over 10000 crankshafts having serious damage and were saved from rejection. We are confident of our workmanship and design of equipment and can repair your shaft successfully without stripping it down from the engine and transporting it to the workshop.

The following procedure is adopted for successful repair of the crankshaft:

Calibrated and modern instruments are used to undertake preliminary inspection of the crankshaft as follows:
1. Dimensional inspection to check taper and ovality
2. Crack detection by MPI/ultrasound or dye penetrant
3. Hardness test
4. Surface test to check surface roughness
5. Inspection to check the straightness of the crankshaft
6. Lube oil and radius fillet profile check
7. Visual inspection

**Inspection of Crankpin Before Grinding**

**Inspection of Crankpin on Board a Vessel**

All the readings and observations are recorded in the inspection format, and onsite repair planning is done in consultation with our senior Engineer.

After inspection, grinding, and repair of the crankshaft, the following parameters are achieved:
1. Taper and ovality of the crankpin and main journal after grinding and polishing can be achieved within 0.02 mm.
2. The lubrication oil hole and radius fillet profile can be given as per the original profile.
3. The presence of crack and hardness readings are taken and recorded.
4. Straightness and run-out are maintained as per the manufacturer’s specifications. A surface finish of less than 20 RA values can be maintained and achieved.

**Inspection of Crankshaft After Grinding on Board a Vessel**

All the crankshaft grinding services, crankshaft repair, crankshaft grinding, and polishing jobs executed by RA Power Solutions are guaranteed for satisfactory performance. Price-wise, we are considered to be the lowest in the international market.

The author of the blog is Mr. Raj Shahani, Managing Director of the company. He has 44 years of experience in providing engine repair services all over the world.

For more information regarding crankshaft repair, onsite crankshaft grinding and polishing, crankshaft machining, crankshaft grinding services, and other engine repair services, please feel free to write to us at rajshahani@rapowersolutions.com or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

**Onsite Grinding & Repair of Crankpin is in Process**

Onsite Crankshaft Grinding & Polishing by Revolutionary Portable Equipment – RA Power Solutions

Crankshaft journal and crankshaft crank pin diameter should be grind and polished to attain a surface finish of 15 microinches or better. Again, the maintenance of the taper and ovality of the crankpin and crankshaft main journal has to be within the limit recommended by the manufacturer. Generally, the limits are within 0.02 to 0.05 mm, depending on the diameter of the crankpin and main journal. Till few years back it was a monopoly of a few European companies undertaking onsite crankshaft grinding and crankshaft polishing jobs charging exorbitant prices from the shipping companies and the power plants who had no option but to get the job of onsite crankshaft grinding and crankshaft polishing done from them.

Portable Crankshaft Grinding Machine — **Onsite Crankshaft Grinding & Polishing Machine**

RA Power Solutions has been extending crankshaft grinding, crankshaft polishing, maintenance, and repair of high-capacity engines for the last forty years. Out of our experience, we have developed and manufacture onsite crankshaft grinding and crankshaft polishing machines having a range from 30 mm to 700 mm. The onsite crankshaft grinding machine has brought down the cost of repair of the crankshaft and has broken the monopoly of the European service providers. The onsite crankshaft grinding machine manufactured by RA Power Solutions has the following features:

The onsite crankshaft grinding and polishing machine is portable, lightweight, and can be easily taken to the site all over the world.
The crankshaft grinding & polishing machine is portable and can be inserted from the inspection window. The crankpin grinding and polishing can be done without removing the crankshaft from the engine block.
The machine is designed and manufactured as per the customer’s requirement. For example, We have supplied machines for the crankshaft having a small bearing width or limited space.

Vibration Less Crankshaft Grinding Machine

The crankshaft grinder machine is capable of maintaining the taper and ovality of the crankpin or main journal as per the tolerances stipulated. It can achieve even a close tolerance of 0.01 mm in terms of taper and ovality. A surface finish far better than the international standard is achievable.
The onsite crankshaft grinding and crankshaft polishing machine is easy to operate and maintain. Onsite training by our experienced technicians is provided.
The cost of the crankshaft grinding and crankshaft polishing machine is low and affordable.

We have sold more than 70 crankshaft grinding and crankshaft polishing machines all over the world to leading dry docks, shipping companies, diesel power plants, repair workshops, etc.

The author is Mr. Raj Shahani, Managing Director of the company. He has 44 years of experience in the grinding of crankshafts, polishing of crankshafts, and all services related to the repair of engines and supporting equipment. He has designed and developed the portable crankshaft grinding machine to save time and money.

Insitu Crankshaft Grinding Machine — **Crankshaft Grinding Machine Ready for Dispatch**

Onsite Grinding Machine for Small Diameter — **Onsite Grinding Machine for Small Diamete**r

We will be pleased to share more information regarding onsite crankshaft grinding machine, onsite crankshaft grinding and polishing machine, please email us at rajshahani@rapowersolutions.com or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.