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**

Crankshaft Machining | Crankshaft Grinding | Crankshaft Polishing | 44 Years Of Experience

With the experience of more than four decades, RA Power Solutions has been the leader in providing insitu crankpin, main journal grinding, and machining. The removal of the crankshaft from the engine block in case of an accident or normal wear and tear is not required. The removal of the crankshaft from the engine block is a lengthy process and expensive, and engine manufacturers are to be contacted for the disassembly and removal of the crankshaft from the engine.

The onsite crankpin, main journal grinding and crankshaft polishing are undertaken by RA Power Solutions using state-of-the-art equipment which can be taken to any site on a ship or land-based industry.

**Crankshaft Machining on Board a Vessel**

The onsite crankshaft grinding machine is placed on the damaged crankpin through the inspection window provided in the crankcase. Due to the compact design of the machine, most of the crankshafts can be repaired onsite.

RA Power Solutions undertakes onsite machining, onsite grinding of crankshafts, and crankshaft polishing services of diameters ranging from 60 mm to 700 mm.

**Onsite Crankshaft Grinding & Polishing Machine**

**Crankshaft Grinding Machine- Grinding Crankpin**

The jobs of crankpin and main journal repair of crankshaft executed by us have the following features:

Having the latest quality control measuring instruments to check hardness, crack by MPI, taper, ovality, surface finish, etc.
All instruments used for measuring the crankpin and main journal diameter are periodically sent to the laboratory for calibration. Valid certificates are kept in the record as per the requirement of inspection agencies.
The latest design and technology instruments/equipment are used prior to the repair of the crankshaft and after the repair is executed.

Advantage Of RA Power Solutions For Crankshaft And Main Journal Repair

Crankshafts are repaired onsite up to a diameter of 700 mm. No need for the removal of the crankshaft.
An experienced team of technicians is always ready to leave for sailing all over the world. The holding of seamen passports by technicians facilitates them to fly out to any country on short notice.
The robust design and use of titanium for manufacturing the body of the crankshaft grinding machine ensure minimum or no vibration while the crankshaft grinding machine is in operation. The job of repairing the crankshaft can be executed while the vessel is sailing.

All the services required for the repair of the engine and to put it back into operation are extended by RA Power Solutions, including commissioning and trial parts.

The experience of repairing over 10,000 crankshafts makes us a leader in this field. The cost of repair of the crankshaft and the services offered are the lowest in the industry. This is possible due to the continuous upgrading of technology and processes followed by us.

For more information regarding the onsite machining of crankshaft, crankshaft polishing, polishing of crankshaft, and onsite crankshaft polishing mail us at rajshahani@rapowersolutions.com or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

Crankshaft Grinding Executed on Board a Vessel – RA Power Solutions

RA Power Solutions has executed successfully the crankshaft grinding of 6 pins on board a vessel at Dumai/Lubuk Gaung Port, Indonesia of MAN B&W STX 6L23/30H Engine.

In this case, crankshaft grinding was required because all the CR pins having a standard diameter of 185 mm developed taper and ovality. Out of 6 CR pins, not even a single pin was seized or crack was developed.

**Crankshaft Deflection and MPI Test Under Process**

The above observations show that the engine users should periodically get the crankshaft calibrated and go for grinding and polishing as the crankshaft develops taper and ovality due to continuous running.

To execute the above job, RA Power Solutions Pvt. Ltd. used a crankshaft grinder which is lightweight, and the crankshaft grinder was taken to the site. RA Power Solutions has sold more than 60 crankshaft grinding machines all over the world.

RA Power Solutions offers precision crankshaft grinding services, restoring your engine’s efficiency and durability. Trust our experts to deliver unparalleled results. Contact us for superior crankshaft solutions.

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