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

RA Power Solutions undertake crankshaft repair, crankshaft grinding and polishing onsite all over the world. The company is extending 24/7 emergency service for repair of crankshaft of main and auxiliary engines on board a vessel or for the 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 a most knowledgeable company in the world. Our response time in case of emergency is unbeatable. We have developed 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 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 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 crankshaft, the following parameters are achieved:
1. Taper and ovality of crankpin and main journal after grinding and polishing can be achieved within 0.02 mm.
2. Lubrication oil hole and radius fillet profile can be given as per the original profile.
3. Presence of crack and hardness readings are taken and recorded.
4. Straightness and runout are maintained as per the manufacturer’s specifications. Surface finish of less than 20 RA value 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 is having 40 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**

Compressor Crankshaft Grinding | Marine Crankshaft Grinding | Engine Crankshaft Grinding and Polishing – RA Power Solutions

RA Power Solutions is known as a leader in offering onsite repair of crankshaft worldwide with forty years of experience in this field, the company’s endeavor is always to save the Crankshaft from rejection.

The crankshaft meets with serious accidents and are even rejected by the European Repair Companies attended by RA Power Solutions and is successfully repaired. This is possible because of having technicians who have hands-on experience in repairing more than ten thousand crankshafts.

**Crankshaft Grinding Mirrless Blackstone**

All crankshafts are initially checked and inspected to ensure that they are acceptable for reuse or for repair. The onsite crankshaft grinding and crankshaft polishing is undertaken through the window of the engine block. Due to continuous innovation in the design and technology of crankshaft grinding machines manufactured and used by us, it is possible to maintain the dimensional tolerances strictly as per the original equipment manufacturer. The crankshaft grinding and polishing are done in the minimum possible time. Thus, reducing the breakdown time of the equipment considerably.

Presently, we are undertaking crank-pin and main journal grinding and repair up to 700 mm and are in the process of increasing the capacity up to 1000 mm. We undertake onsite crankshaft grinding of all popular makes of engine and their model. Few of them are as following-

**Offshore Grinding of Crankshaft is in Process**

Wartsila 6R32, 12V32, 18v32, Mirrlees Black Stone ESL, MAJOR K series Generators, Ruston, Allen, Yanmar, MAN B&W, Daihatsu engine, etc. For more details on the marine crankshaft repair, crankshaft grinding machine, please email us at rajshahani@rapowersolutions.com or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

Crankshaft Reconditioning | Crankshaft Machining | Crankshaft Repair | Crankshaft Grinding – RA Power Solutions

RA Power Solutions is having more than forty years of experience in crankshaft reconditioning of large marine engines and engines installed in Power plants.

Diesel Engine Ready for Grinding & Repair

The onsite crankshaft repair and grinding is undertaken by RA Power Solutions experienced technicians for diameter ranging from 30 mm to 700 mm, which cover almost all the crankshafts used for different applications. It is generally observed that due to non-experience or lack of knowledge of the companies undertaking crankshaft reconditioning of Crankshaft misguide the end users resulting to serious breakdown and considerable higher expense.

Onsite Grinding of Crankpin by RA Power Solutions

RA Power Solutions has undertaken reconditioning of crankshaft exceeding ten thousand numbers and recommends the following situation for reconditioning of the crankshaft.

Recommendation for reconditioning of Crankshaft:

I) It is recommended to undertake crankshaft repair in case taper and ovality exceeds the limit specified in maintenance manual of engine manufacturer.
II) In case due to accident, deep line marks or depression is developed.
III) Reconditioning of crankshaft is recommended in case higher hardness is observed due to seizer of bearings or any other reason.
IV) Development of surface crack
V) Loss of alignment.
VI) In certain cases, although the dimensions of CR Pin and Main Journal are observed within the limit, but due to rough surface observed on CR Pin and of Main Journal, surface require polishing.

Above suggestions are given for reconditioning of crankshaft. It is always advisable to send photographs and brief Inspection report to RA Power Solutions for free recommendation as how to repair Crankshaft successfully.

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

**Grinding of Crankpin by Onsite Crankshaft Grinding Machine**

**Crankpin After Onsite Grinding & Repair**

Crankshaft Grinding Machine | Crankshaft Grinder | Global Onsite Repairs – RA Power Solutions

Engine population is rapidly increasing for the shipping industry, power plants and various applications. In most of the cases engines are used not only for the emergency purpose but as a base load. The continuous running of diesel engine results to wear and tear of the crankpin and main journal of the crankshaft. In certain cases taper and ovality more than the permissible limit is developed in the crankpin and the crankshaft main journal.

**Inspection of Engine Before Grinding**

The disassembly of the crankshaft from the main engine and to send it to the designated workshop is a lengthy process. This is now outdated. RA Power Solutions having the experience of more than four decades in repair of crankshaft have developed a portable, light weight engine crankshaft grinding machine and onsite crankshaft grinding machine which can be taken to the site as accompanying baggage. The onsite crankshaft grinding machine has the following features:

Light in weight can be carried to the site easily.
Portable nature of onsite crankshaft grinding machine facilitates it to insert from the inspection window and undertake grinding and polishing of the crankpin.
Machine is designed and can maintain the taper and ovality within 0.02 mm. This meets with the OEMs tolerances.
Surface finish and other parameters can be maintained as per international norms.
Onsite crankshaft grinding machine is easy to operate
Onsite training is provided for smooth running of the crankshaft grinding machine.
More than 70 machines sold all over the world and performing satisfactory.
Insitu crankshaft grinding machines are low-priced and recommend for repair workshops, shipping and engineering companies, and power plants.

**Inspection of Connecting Rod on Board a Vessel**

Crankshaft grinding machines are exported to various countries including Dubai, Singapore, Bangladesh, Indonesia, Greece, Qatar, Nigeria, South America, etc.

For more information on engine crankshaft grinding machines, please email us at rajshahani@rapowersolutions.com or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

Crankshaft Machining | Crankshaft Grinding | Crankshaft Polishing

With the experience of more than four decades, RA Power Solutions has been the leader in providing in-situ 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 the 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 part.

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 process followed by us.

For more information regarding 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.

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 Crankpin Grinding- Large and Small Engine Repairs – RA Power Solutions

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**

Following are the main features of the services offered related to crankshaft repair:

Experience technicians undertake crankshaft inspection which includes dimensional calibration for taper, ovality and hardness testing.
In case of failure of bearing or serious damage, it is important to undertake a crack check. We recommend magnetic particle inspection and dye penetrant.
Checking loss of alignment of crankshaft by deflection gauge or taking the run-out of the main journal.
Straightening of crankshaft is undertaken if required.
Radius fillet original profile is maintained in case of damage.
Onsite crankshaft grinding, crankshaft repair is undertaken by using

crankshaft grinding equipment maintaining the crankpin and main journal tolerances as per manufacturers.

Surface finish after crankshaft grinding and polishing is of great importance and is maintained.

Main points related to crankshaft repair services offered by RA Power Solutions:

A company having 40 years of experience in repair of crankshaft can easily detect the damage caused to the crankshaft due to accident.
We are experts in salvaging the crankshafts which as per the manufacturers are rejected. This is possible due to our vast experience, knowledge and use of the latest technological equipment.
A large team of experienced technicians have a valid passport and seaman book and can travel all over the world in the shortest possible notice.
In field of crankshaft repair, we are the leaders, most experienced, sincere and trustable.
The services provided is on the lowest rates and can be compared with other companies.
The only company having 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 is offered with a guarantee.

**Inspection of Crankpin is in Process**

**Repair of Crankpin by Crankshaft Grinding Machine**

The only company in the world manufacturing onsite crankshaft grinding machine and onsite polishing machine and have sold more than 70 units all over the world.

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

Crankshaft Grinding, Crankshaft Polishing Machine, And Tools- RA Power Solutions

RA Power Solutions is the first company to introduce portable, lightweight, onsite crankshaft grinding and crankshaft polishing machines, crankshaft polishing tools, and crankshaft repair machines at the lowest price.

With the introduction of a revolutionary onsite crankshaft grinding machine, now it is possible to save the repair cost of the crankshaft. The onsite crankshaft grinding repair machine has proven its worth with 70 clients based all over the world.

**Crankshaft Grinding Machine Packed in Steel Box for Dispatch**

The onsite Crankshaft Grinding Polishing Machine has the following features:

Onsite crankshaft grinding polishing machine can undertake crankshaft grinding and crankshaft polishing up to 700 mm diameter without dismantling the crankshaft.
In terms of taper and ovality tolerance can be maintained within 20 to 30 microns or as per the manufacturer’s requirement.
For the long life of bearings and crankshaft it is important to have a high level of surface finish with onsite crankshaft grinding polishing machine it is possible to maintain a surface finish of 0.15 RA value.
The onsite crankshaft polishing machine is easy to operate and job training is also provided.
Onsite Crankshaft Grinding Polishing Machines can be carried as a accompanied suitcase by technicians all over the world.
The onsite crankshaft grinding polishing machine is ideal for grinding and polishing of main engine and auxiliary engine on board the vessel. All popular make of engine crankshafts can be repaired like MAK, MAN, Wartsila, Daihatsu, Ruston, Yanmar, Mirrless Blackstone, SKODA, etc.
Onsite crankshaft polisher machine supplied all over the world including Nigeria, Dubai, Singapore, South America, Italy, Maldives, Indonesia, Bangladesh, etc.

For more information on crankshaft polishing machines, crankshaft repair, grinding of crankshaft, and crankshaft polishing tool please email us at rajshahani@rapowersolutions.com or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

**Crankshaft Grinding Machine for High Diameter**

**Grinding of Crankpin by Crankshaft Grinding Machine is in Process**

Crankshaft Grinding Machine – RA Power Solutions

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

In case of accident, bearing failure, crankshaft needs grinding and repair. RA Power Solutions having experience of more than 4 decades in repair of crankshafts of high-capacity marine engines and diesel engines installed in power plants have introduced onsite crankshaft grinding machine which is capable of undertaking machining, grinding and polishing of crankshaft, main journal and crankpin onsite without disassembly of the engine. The onsite crankshaft grinding machine is easy to operate and can be taken to the site.

RA Power Solutions as a repair company is using the crankshaft grinding machine for last more than 20 years and have executed more than 10,000 jobs of repair and grinding of crankshafts. The performance of crankshaft grinding 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, etc.

The machine is available at a low cost and on job training is provided. For more information on Dubai marine engine crankshaft grinding services, grinding of crankshaft, crankshaft grinding machine supplier, crankshaft grinder machine contact us at rajshahani@rapowersolutions.com or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

**Onsite Grinding Machine for Small Diameter**

Crankshaft Grinding by Pneumatic Grinding Machine – RA Power Solutions

Onsite crankshaft grinding is the latest trend in shipping industry. Removing crankshaft from the engine block involves dis assembly of all major parts which require time, efforts 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

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

RA Power Solutions has executed repairs of more than 10,000 crankshaft all over the world for leading shipping companies, power plants, heavy engineering companies, etc. We are respected in 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

Crankshaft Grinding & Repair by Grinding Machine is in Process