Crankshaft Reconditioning | Crankshaft Grinding Machine Exporter – RA Power Solutions

RA Power Solutions undertakes the repair of crankshafts having a diameter ranging from 35 mm to 700 mm. The concept of removing the crankshaft and sending it to the workshop for repair is now no longer valid, and the user gets the crankshaft repaired onsite.

During our working of more than forty-seven years on marine main, crankshaft reconditioning, auxiliary engines, and high capacity diesel generating sets installed in industry, power plants, etc., we have observed that while the maintenance schedule stipulated by the engine manufacturer in the maintenance manual is religiously followed, but no attention is paid to the crankshaft’s condition.

Even during the maintenance schedule of 25,000 to 30,000 hours of operation, maintenance agencies and officials connected with the day-to-day upkeep of the engine ignore the inspection of the crankshaft till the seizure of the bearing or any other major breakdown happens in the crankshaft.

**Repair of Crankpin on Board a Vessel**

We have experienced that irrespective of the metallurgy of the crankshaft and level of hardness after continuous operation of the engine, taper and ovality of the crankshaft, crankpin, and main journal are developed. The bearing surface becomes rough, and in some cases, bearing line marks, pitting, etc., are developed. Due to these abnormalities developed in the crankshaft, failure of the bearing and the crankshaft takes place. RA Power Solutions recommends that inspection procedures be followed to ensure satisfactory performance of the crankshaft and to save it from rejection.

During the periodic maintenance schedule, the crankpins and main journals of the crankshaft should be checked for the development of taper and ovality.
The dimensions of the crankpin, taper, and ovality should be well within the limits specified by the manufacturers. There should not be any presence of bearing line marks or pitting on the crankpin journals.
The profile of the lubricating oil hole and radius fillet should be checked visually. There should not be any loss of the original profile.
The hardness test and the crack detection test by MPI or dye penetrant are not required till the major failure of the bearing or accident takes place.

Inspection of Crankpin on Board a Vessel

Checking of deflection of the crankshaft.
Positioning of crankshaft balancing weights. They should be tightened to a specific torque as per the manual.

In case the above preventive inspection is undertaken on-site without disassembly of the crankshaft, the user can avoid any major damage to the crankshaft.

On-site machining of crankpins and main journals has been made simple in this era of technological renovation. The concept of removing the crankshaft and getting the crankshaft machined in the workshop is no longer valid. The onsite crankshaft machining is undertaken to maintain strictly all the tolerances as specified by the manufacturer and stipulated in the maintenance manual.

Crankshaft machining is no longer the monopoly of a bunch of companies based in Europe and the UK. The availability of a portable, easy-to-operate crankshaft grinding machine has made it simple and easy to undertake the polishing and grinding of the main journal if required.

RA Power Solutions is a reputable and leading crankshaft grinding machine exporter and crankshaft reconditioner, known for its high-quality products and exceptional services. With a strong commitment to customer satisfaction, RA Power Solutions has gained a stellar reputation in the industry. Our state-of-the-art crankshaft grinding machines are designed to precision grind and polish crankshafts, ensuring optimal performance and longevity of engines.

**Repair of Crankshaft by Portable Crankshaft Grinding Machine**

**Portable Crankshaft Grinding Machine**

RA Power Solutions has been extending onsite crankshaft inspection, main journal grinding, and crankshaft repair services for the last 47+ years, We have a team of trained and experienced technicians who can fly to your site on short notice, as all of them have valid CDC.

We also have engine crankpin bearings available in our stock for various engine models from Wärtsilä, MAN B&W, Sulzer, Yanmar, Daihatsu, MAK, Caterpillar, Cummins, Deutz, Mitsubishi, Allen, Himsen, and Niigata.

For any queries regarding crankshaft grinding, grinding of crankshaft, crankshaft grinding services, crankshaft grinding machine, onsite crankshaft grinding, insitu crankshaft grinding repair, crankshaft grinding and repair, Crankshaft Grinding Machine Exporter, onsite crankshaft grinding machine, grinding of main journals, polishing crankshaft journals and crankshaft grinders, please email us at rajshahani@rapowersolutions.com or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

Inspection of Crankpin After Grinding — **Inspection of Crankpin After Repair**

**Crankpin After Grinding & Polishing by Crankshaft Grinding Machine**

FAQs

1. What is a crankshaft grinding machine?

Crankshaft grinding machines are used to machine and restore crankpins and main journals with the highest precision. The portable machines grind and polish on-site to the required journal diameter, taper, ovality, radius profile, and surface finish.

2. What are the advantages of onsite crankshaft grinding?

The main advantage of onsite crankshaft grinding is that the crankshaft can stay in place and does not need to be taken out and sent to the workshop. This minimizes the time for dismantling, transportation, repair, and downtime. The crankshaft can be inspected, ground, and polished on board the vessel, at the power plant, or at the industrial site.

3. What does crankshaft reconditioning mean?

Crankshaft reconditioning is the process of restoring worn or damaged crankpins and main journals to proper size. Includes taper and ovality inspection, grinding, polishing and correction. The crankshaft is reconditioned to OEM specifications.

4. Can you recondition a crankshaft without removing it from the engine?

Yes. Crankshaft reconditioning can be done on site with portable crankshaft grinders. The machine is built directly on the crankshaft and allows one to machine the crankpins and main journals without removing the entire crankshaft from the engine.

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

Crankshaft journal and crankshaft crank pin diameter should be ground 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. A 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.

RA Power Solutions has been extending crankshaft grinding, crankshaft polishing, maintenance, and repair of high-capacity engines for the last forty-seven years. Out on our experience, we have developed and manufactured 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 requirements. For example, we have supplied machines for the crankshaft having a small bearing width or limited space.

Vibration Less Crankshaft Grinding Machine — Vibration-Less Crankshaft Grinding Machine

The crankshaft grinder machine is capable of maintaining the taper and ovality of the crankpin or main journal according to the stipulated tolerances. It can achieve 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. On-site 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 200 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 47 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 — **On Site Grinding Machine for Small Diamete**r

We will be pleased to share more information regarding the crankshaft grinding machine and, 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.

Crankshaft Grinding Machine – RA Power Solutions

Crankshaft Grinding or crankshaft repair is required in case of the development of taper and ovality in the crankpin or crank main journal.

In case of an accident or bearing failure, the crankshaft needs grinding and repair. RA Power Solutions, having experience of more than nearly five decades in the repair of crankshafts of high-capacity marine engines and diesel engines installed in power plants has introduced an onsite crankshaft grinding machine that is capable of undertaking machining, grinding, and polishing of crankshaft, main journal, and crankpin onsite without disassembly of the engine. It is easy to operate and can be taken to the site.

RA Power Solutions, as a repair company, has been using the Crankshaft Grinding machine for more than 47 years and has executed more than 20,000 jobs of repair and grinding of crankshafts. The performance of the machine is proven and is highly recommended by the leading workshops undertaking the repair and grinding of crankshafts in various countries like Sudan, Nigeria, Singapore, Dubai, South America, Indonesia, Mauritius, Greece, Singapore, Dubai etc.

The machine is available at a low cost, and job training is provided.

For more information on Dubai marine engine crankshaft grinding services, grinding of crankshaft, or crankshaft grinder machine, contact us at rajshahani@rapowersolutions.com or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

Crankshaft Grinding by Pneumatic Grinding Machine – RA Power Solutions

Onsite crankshaft grinding is the latest trend in shipping industry. Removing the crankshaft from the engine block involves disassembly of all major parts, which requires time, effort, and money. The best solution for this is to undertake crankshaft grinding and crankshaft polishing onsite without disassembly of the crankshaft from the engine block.

The onsite grinding is undertaken by inserting the onsite crankshaft grinding machine from the inspection window.

Pneumatic Crankshaft Grinding Machine for Small Diameter — Pneumatic Crankshaft Grinding for Small Diameter

RA Power Solutions undertakes onsite crankshaft grinding and onsite crankshaft polishing, and repairs up to 700 mm in diameter. We have a team of experienced technicians who travel all over the world with portable and lightweight equipment. It is now possible to execute the crankshaft repair in a few hours, depending on the diameter and extent of the damage to the crankshaft.

RA Power Solutions has executed repairs of more than 10,000 crankshafts all over the world for leading shipping companies, power plants, heavy engineering companies, etc. We are respected in the industry for quality, sincerity, and low price.

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

Crankshaft Grinding by Pneumatic Grinding Machine — Pneumatic Grinding Machine

Crankshaft Grinding & Repair by Grinding Machine is in Process

On-shore and Off-shore Crankshaft Grinding Machine – RA Power Solutions

RA Power Solutions Pvt. Ltd. has been successfully executing onshore and offshore crankshaft grinding of crankshafts irrespective of its location. The services of crankshaft grinding are offered to industries, power plants, and shipping companies all over the world.

Crankshaft grinding machine is of the latest design and can maintain a tolerance within 20 microns. The crankshaft grinding machines are lightweight and can be taken on-shore and off-shore. RA Power Solutions has sold more than 60 machines all over the world.

Offshore Grinding of Crankshaft Under Process	On-shore Grinding of Crankshaft Under Process

For more information regarding onshore and offshore crankshaft grinding, crankshaft grinding machine supplier, crankshaft grinding machine for engine repair, onsite grinding machine supplier, insitu machining crankshaft repair, insitu crankshaft machining service, insitu machining crankshaft repair, contact us on rajshahani@rapowersolutions.com or info@rapowersolutions.com or call us at +91 9582647131 or +91 9810012383.