Inspection, Grinding & Polishing of Crankpin is in Process
RA Power Solutions offers top-notch crankshaft grinding services that are second to none in the industry. With years of expertise & state-of-the-art equipment, we specialize in the precise grinding of crankshafts, ensuring optimal engine performance and longevity. Our team of experienced technicians is well-versed in handling a wide range of crankshafts, from small engines to large industrial ones.
Whether it’s repairing a damaged crankshaft or enhancing its surface finish for improved functionality. RA Power Solutions is a trusted partner for all your crankshaft grinding needs. Our commitment to quality and efficiency makes us a preferred choice for clients seeking reliable & cost-effective crankshaft grinding services.
When it comes to crankshaft grinding, RA Power Solutions stands out as a leader in the industry. We employ advanced grinding technology. Our team of experienced professionals delivers precision grinding solutions. We meet the highest standards of quality and performance.
At RA Power Solutions, we offer comprehensive crankshaft grinding services to restore the functionality and performance of your engine’s crankshaft. With over 45 years of experience, our skilled technicians utilize state-of-the-art equipment and proven techniques to deliver high-quality results, ensuring your crankshaft meets the exact specifications required for optimal engine performance.
For more information on crankshaft grinding, crankshaft grinding machine exporter, Insitu Crankshaft Grinding, On Site Crankshaft Grinding, Crankshaft Grinding Machine Supplier, Insitu Crankshaft Grinding Machine Supplier, and Onsite Crankshaft Grinding Machine Supplier, contact us at rajshahani@rapowersolutions.com or info@rapowersolutions.com or call us at +91 9582647131 or +91 9810012383.
RA Power Solutions has been working on high-capacity diesel engine overhaul, repair, and maintenance, and grinding of crankshafts for the last 45 years. During our work on engines on board a vessel or in large engineering plants, we have observed that the incidents of crankshafts getting damaged due to accidents are becoming increasingly often.
As we are aware that the crankshaft is the heart of the engine. Using the connecting rod, the crankshaft converts reciprocating motion to linear movement, which drives the engine. RA Power Solutions has the process, technology, and onsite crankshaft grinding machines ranging from 35 mm to 700 mm, and crankshaft repair is now possible without disassembly of the crankshaft from the engine. The repair of the crankshaft is possible irrespective of its length and weight, as we have the equipment available up to 700 mm in terms of diameter.
The crankshaft, in general, has various applications, including diesel generating sets and marine engines. Typical areas of crankshaft applications are as follows:
Compressors
Railway vehicles/engines
Power generators
Forging hammers
Pumps
Marine engines, etc.
Crankpin After Accident
Crankpin After Serious Accident
The crankshafts of high-capacity engines used for marine and land-based applications are of forged steel. RA Power Solutions has experienced technicians and advanced technology equipment, i.e., an in situ crankshaft grinding machine. To maintain the dimensions and tolerances strictly as per the manufacturer’s specifications and recommendations.
Major parameters maintained after crankshaft grinding and repair and grinding of the crankshaft, are as follows:
Taper and ovality can be maintained within 0.02/0.03 mm or less as per the requirement of the engine manufacturer.
The high surface finish achieved after grinding the crankpin and main journal diameters significantly improves performance. It enhances the life of the connecting rod and main bearings.
Inspection of Crankpin Before Repair & Grinding
Inspection of Crankpin is in Process
The radius profile of both the end of the crankpin or main journal and the lubricating oil profile is maintained strictly as per the original profile.
The straightness/runout of the crankshaft is checked, and the crankshaft is straightened if required by the peening process.
Counterweight can be replaced in case of damage, and supporting threads are repaired onsite.
During our work of more than four decades, we have repaired more than 10,000 crankshafts used for different applications. All the repairs are executed with a guarantee. We are an ISO-certified company and also meet the standards requirements like DNB, Lloyd’s, etc. All our technicians possess Indian CDC and can join the vessel in a short time in any part of the world.
Crankshaft grinding and repair are essential processes in the field of engine maintenance and precision engineering. The crankshaft, being a crucial component in any engine, requires meticulous attention to ensure its optimal performance. At RA Power Solutions, we specialize in main bearing machining, grinding of crankshafts, and in situ crankshaft grinding.
For more information regarding in situ crankshaft inspection,in situ grinding crankpins, and cost-effective crankshaft grinding in Dubai, contact us at rajshahani@rapowersolutions.com or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.
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 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 on 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 is in Process
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 45 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.
This blog was written by Mr. Raj Shahani (Managing Director of RA Power Solutions), having more than forty years of experience in providing services like crankshaft repair and grinding, crankpin machining, polishing, and grinding of crankshaft, engine repair, and overhauling, and many other services related to the high-capacity engine.
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 Repair
Crankpin After Grinding & Polishing by Crankshaft Grinding Machine
RA Power Solutions has now made it easy to undertake crankpin grinding, crankpin repair, and crankpin polishing onsite in a short time with the lowest cost.
We undertake onsite crankpin repair, crankpin grinding, and crankpin polishing of crankshaft diameters ranging from 30 mm to 700 mm. This is undertaken by a lightweight, easy-to-operate, and portable onsite crankshaft grinding machine, which is taken to the site. We have a team of experienced technicians having valid passports and CDC. They can travel to any destination in the world in the shortest possible time with portable crankshaft grinding equipment and can also undertake repairs while sailing of vessel.
The following procedure is generally followed for successful onsite crank pin repair of the crankshaft:
Crack Detection Test of Crankpin
Initial dimensional inspection of the crankpin is undertaken by calibrated measuring instruments for taper, ovality, and other parameters.
The radius fillet, lubricating oil hole of crankpin, is checked for any loss of profile and damage.
Crack detection test by high-intensity MPI torch is undertaken by level 3 qualified technicians.
Hardness check and other important parameters are checked and recorded.
After the initial inspection, in case required grinding and polishing of the crankpin is undertaken, to maintain the tolerances strictly as per the manufacturer’s specifications.
The onsite crankshaft grinding machine used by RA Power Solutions engineers for grinding and polishing of crankpin and crankpin repair is self-designed and is improved from time to time.
Inspection of Crankpin is in Process
Onsite Inspection of Crankpin Before Grinding & Polishing
The combination of skilled technicians and the most modern onsite crankshaft grinding machine is used for crankpin grinding, delivering and maintaining the tolerances after crankpin repair, which is better than the international standards and the tolerances specified by the engine manufacturers. Our company has more than four decades of experience in successful repairs of the crankshaft of high-capacity engines used for power generation, shipping, etc.
Grinding & Polishing of Crankpin on Board a Vessel
RA Power Solutions also provides the following onsite repair services:
Machining and grinding of crankpin journals up to 700 mm diameter.
Grinding of main journals
Machining and grinding of crankpin fillets
Grinding and Machining of main journal fillets
Machining and grinding of the intermediate shaft/tail shaft
Grinding and polishing of crankshaft, turbine shaft, alternator shaft, and pump shaft
Metal stitching/metal locking of the damaged casting
Overhauling and repair of the engine.
Rebabbitting of old white metal bearings
Repair & Overhauling of Engine
Repair of Intermediate Shaft
The author is Mr. Raj Shahani, the company’s managing director. He has 45 years of experience providing on-site repair services related to high-capacity engines worldwide. He designed and developed the portable crankshaft grinding machine to save time and money.
For more information regarding grinding of crankshaft, onsite crank pin repair, onsite repair services, and crankpin repair, please feel free to write us at rajshahani@rapowersolutions.com or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.
RA Power Solutions is engaged in onsite crankshaft grinding, crankshaft machining, and crankshaft repair of small and high-capacity engines. The crankshafts and all cylindrical shafts of rotatory equipment are repaired onsite without disassembly.
Onsite Crankshaft Grinding While Vessel is on Move
The following are the main features of the services offered related to crankshaft repair:
Experienced technicians undertake crankshaft inspection, which includes dimensional calibration for taper, ovality, and hardness testing.
In case of failure of the bearing or serious damage, it is important to undertake a crack check. We recommend magnetic particle inspection and dye penetrant.
Checking the loss of alignment of the crankshaft by deflection gauge or by taking the run-out of the main journal.
Straightening of the crankshaft is undertaken if required.
The radius fillet original profile is maintained in case of damage.
Main points related to crankshaft repair services offered by RA Power Solutions:
A company having 45 years of experience in the repair of crankshafts can easily detect the damage caused to the crankshaft due to an accident.
We are experts in salvaging the crankshafts, which, as per the manufacturer, are rejected. This is possible due to our vast experience, knowledge, and use of the latest technological equipment.
A large team of experienced technicians has a valid passport and seaman’s book and can travel all over the world on the shortest possible notice.
In the field of crankshaft repair, we are the leaders, most experienced, sincere, and trustworthy.
The services provided are at the lowest rates and can be compared with other companies.
The only company to have executed more than 11,000 jobs of crankshaft repair and engine overhaul maintenance worldwide.
All the repair services related to high-capacity diesel generating sets are offered with a guarantee.
Inspection of Crankpin is in Process
The only company in the world manufacturing onsite crankshaft grinding machines and onsite polishing machines, and has sold more than 70 units all over the world.
For more information regarding grinding of crankpin and main journal, crankpin repair, contact us at rajshahani@rapowersolutions.comor info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.
RA Power Solutions has offered 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 the crankshaft main journal and crankpin
Crankshaft Repair Services While the Vessel is Sailing
Crankshaft Grinding Services- Power Plant
The onsite repair services of the crankshaft help in getting the engine back into operation in the minimum time. Following crankshaft grindingservices are offered by RA Power Solutions at Sea, on land, or in the shipyard:
Onsite Crankshaft Repair
Crankshaft Straightening
On-site crankshaft journal repair
Crankshaft Regrinding
On-site crankshaft polishing
Onsite Main bearing Regrinding
On-site crankshaft machining
Orbital crankpin machining/regrinding
Main bearing machining
Insitu Main bearing Main Journal Polishing
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 successfully executed 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 and repairing service, or maintenance and repair services, please feel free to write us at rajshahani@rapowersolutions.com or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.
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 4 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.
Crankshaft Grinding Machine
RA Power Solutions, as a repair company, has been using the Crankshaft Grinding machine for more than 45 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 Repair does not require the crankshaft to be removed from the entablature. In the recent past, due to seizure of bearings or development of taper, ovality, or loss of alignment of the crankshaft, it was necessary to remove the crankshaft from the engine block and send it to the designated workshop for crankshaft grinding and crankshaft repair.
Crankpin Repair
The introduction of lightweight, vibration-free crankshaft grinding equipment facilitates grinding of the crankshaft, crankpin, and crank main journal on the spot while the crankshaft is assembled in the engine block. There is no necessity for even the decoupling of an alternator and other accessories from the diesel engine. The portable crankshaft grinding machine is placed on the crankpin or crank main journal through the inspection window of the entablature, and the grinding and polishing operation is done.
The crankshaft grinding machine is centreless, vibration-free equipment which ensures that the centre line of the crankpin is maintained. The crankshaft grinding and crankshaft polishing are done in one setting.
Portable Crankshaft Grinder
The crankshaft grinding machine is manufactured by us with a diameter ranging from 60 to 700 mm. The machine is simple and easy to operate. We also provide training at the customer’s site for the operation and maintenance of the crankshaft grinding machine.
The company has sold more than 85 crankshaft grinding machines all over the world, which are performing satisfactorily. The machines are priced low and are ideally suited for large engineering, shipping companies, repair workshops, etc. More than 10000 Crankshafts are successfully repaired by us, which is a record.
Crankpin After Repair
Crankshaft Grinding from Engine Block Window
Contact us at rajshahani@rapowersolutions.com or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383 for more information.
Crankshaft repair is recommended in case of the following:
Development of excessive taper and ovality in the crankpin journal and the crank main journal.
Development of cracks and an increase in hardness due to the failure of the bearing.
Loss of Alignment of the crankshaft.
Development of deep bearing line marks, rough surface, pitting, etc.
Crankshaft repair is undertaken by grinding the crankshaft onsite. Crank pin journal and main journal of crankshaft grinding are done with a diameter ranging from 60 mm to 700 mm.
Crankshaft Grinding on Board a Vessel
We are cost-effective and have four decades of experience in crankshaft repair, crankshaft grinding, and diesel engine crankshaft repair.
For more information regarding crankshaft repair, contact us at rajshahani@rapowersolutions.com or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.
FAQs:
Can a damaged crankshaft be repaired?
The only safe way to repair a crankshaft is if the damage is contained within the pins – you can grind them to undersize. Any other damage would, unfortunately, mean a new crankshaft is required. Bad news, but much better than the risk of blowing the whole engine
Is a crankshaft easy to fix?
It should be remembered, though, that in all cases, crankshaft repair is a highly specialised area of engine repair that requires the use of specialised equipment, having expert-level knowledge about crankshaft repair procedures, and possessing technical skills that take several years to acquire.
What is the crankshaft in a diesel engine?
The crankshaft is essentially the backbone of the internal combustion engine. The crankshaft is responsible for the proper operation of the engine and converting a linear motion to a rotational motion.
Reduce Cost And Breakdown Time By Onsite Repair Of Crankshaft
The failure of the crankpin and main journal bearing causes serious damage to the crankshaft, which is as follows:
Development of excessive taper and ovality in Crankshaft, Crankpin, and Main Journal.
Development of a crack
Abnormal increase and decrease in hardness
Loss of alignment of the crankshaft, increasing deflection readings.
Development of bearing line marks, pitting, and local depression
Damage to the radius fillet and lube oil profile
The onsite crankshaft grinding equipment developed and manufactured by us is capable of undertaking the grinding and polishing of the crankshaft in one setting. The tolerances after crankshaft repair are strictly maintained as per the manufacturer’s specifications.
Removal of Crankshaft from Engine Block
Repair of Crankshaft is in Process
We have a highly trained and skilled team of technicians who are deployed to the plant site or on a vessel in the shortest possible time. The process we follow for repairing the crankshaft is faster, more cost-effective, and more convenient. It, of course, avoids the removal of the crankshaft and transport to the workshop.
The repair of the crankshaft , onsite repair of crankshaft was executed by RA Power Solutions Pvt. Ltd is approved by leading inspection agencies, including Lloyds, DNV, and many other inspection agencies. For more information, please email us at rajshahani@rapowersolutions.com or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.
