Crankpin Reconditioning | Crankpin Polishing and Onsite Crank pin Repair – RA Power Solutions

RA Power Solutions has now made it easy to undertake crankpin grinding, crank pin repair and crank pin polishing onsite in a short time with the lowest cost.

 

We undertake onsite crankpin repair, crankpin grinding and crankpin polishing of crankshaft diameter ranging from 30 mm to 700 mm. This is undertaken by lightweight, easy to operate and portable onsite crankshaft grinding machine which is taken to the site. We have team of experienced technicians having valid passport 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. Following procedure is generally followed for successful repair of crankpin of crankshaft  onsite:

Crack Detection Test of Crankpin
Crack Detection Test of Crankpin

I) Initial dimensional inspection of crankpin is undertaken by calibrated measuring instruments for taper, ovality and other parameters.

II) Radius fillet, lubricating oil hole of crankpin is checked for any loss of profile and damage.

 

III) Crack detection test by high-intensity MPI torch is undertaken by level 3 qualified technicians.

 

IV) Hardness check and other important parameters are checked and recorded.

 

After the initial inspection in case required grinding and polishing of crankpin is undertaken maintaining 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 is self-designed and is improved from time to time.

Inpection of Crankpin is in Process
Inspection of Crankpin is in Process
Onsite Inspection of Crankpin Before Grinding & Polishing
Onsite Inspection of Crankpin Before Grinding & Polishing

The combination of skilled technicians and most modern onsite crankshaft grinding machine is used for crank pin grinding delivers and maintains the tolerances after crank pin repair which is better than the international standards and the tolerances specified by the engine manufacturers. Our company is having 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
Grinding & Polishing of Crankpin on Board a Vessel
RA Power Solutions also provides the following onsite repair services:
I) Machining and grinding of crankpin journals up to 700 mm dia
II) Grinding of main journals
III) Machining and grinding of crankpin fillets
IV) Grinding and Machining of main journal fillets
V) Machining and grinding of intermediate shaft/tail shaft
VI) Grinding and polishing of crankshaft, turbine shaft, alternator shaft, pump shaft
VI) Metal stitching/metal locking of damaged casting
VII) Overhauling and Repair of Engine

VII) Rebabbitting of old white metal bearings

Repair & Overhauling of Engine
Repair & Overhauling of Engine
Repair of Intermediate Shaft
Repair of Intermediate Shaft
Author is Mr. Raj Shahani, Managing Director of the company. He is having 40 years of experience in providing onsite repair services related to high capacity engines across the world. He has designed and developed the portable crankshaft grinding machine to save time and money.
For more information regarding onsite repair services, please free to write us on info@rapowersolutions.com

Grinding and Polishing of Crankshaft | Repair of Crankshaft | Crankpin | Crankshaft Reconditioning – RA Power Solutions

RA Power Solutions with an experience of forty years provide you with a team of experienced technicians repair of crankshaft onsite, overhauling and maintenance of diesel engine, metal stitching and all the repair jobs related to engine room on a vessel or land-based diesel power plants. We possess precision and latest design of equipments to execute the repairs strictly as per the international norms and maintain the tolerances stipulated by the manufacturer.

Crankshaft Grinding & Polishing on Moving Vessel
Crankshaft Grinding & Polishing on Moving Vessel

RA Power solutions have a mission to provide world class repair services of crankshaft without compromising on the life of crankshaft. The minimum diameter of crankpin and main journal is reduced to maintain the originality of the crankshaft. This again is possible due to the combination of experienced technicians and the lattest design of tools we possess. It is observed that in most of the cases the repairs are not successful as the tool used for the grinding of crankshaft is either out dated and not able to fit on the crankshaft due to space limitations, less bearing width or equipment not designed to give the results as desired.

Crankshaft Grinding & Polishing in Diesel Power Plant
Crankshaft Grinding & Polishing in Diesel Power Plant

RA Power Solutions is the only company which designs its own tooling according to the space available at the site which helps us to grind and maintain the crankshaft tolerances as per the manufacturer’s specifications The main advantage of onsite machining and onsite reconditioning of crankshaft is that there is no need for striping down the equipment which in most of the cases is not possible due to various restrictions.

RA Power Solutions being an Indian company execute the repair of crankshaft on the lowest prices in comparison to the European companies who used to dictate their prices and conditions without compromising on quality.

The onsite crankshaft repair services are extended to all type of industries – petrochemical, offshore and mining, steel, cement and manufacturing plant, marine and sugar plants, etc. We are confident of our quality and have executed repairs of more than 10,000 crankshafts worldwide.We have saved many crankshafts from rejection.Clients can also avail our consultancy services which after inspection of crankshaft advise the various methods of repair of crankshaft on site.

Inspection of Crankpin is in Process
Inspection of Crankpin is in Process
Repair of Crankpin by Specialized Tooling due to Space Constraint
Repair of Crankpin by Specialized Tooling due to Space Constraint

 

 

 

 

 

 

 

 

We also provide services related to engine repair i.e. turbine shaft repair, alternator shaft repair, pump shaft repair, onsite machining, crankshaft machining, crankshaft grinding & polishing, propeller shaft repair, metal locking & metal stitching of engine block, rebabbitting of bearings, connecting rod repair, etc.

The author is Mr. Raj Shahani, Managing Director of RA Power Solutions Pvt. Ltd. He has 40 years of experience in working on large crankshafts and Diesel Engines.

For more information, please email us on info@rapowersolutions.com

Repair of Crankpin is in Process
Repair of Crankpin is in Process
Crankpin Machining by Onsite Crankshaft Grinder
Crankpin Machining by Onsite Crankshaft Grinder

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 world wide with forty years of experience in this field, the company’s endeavor is always to save the Crankshaft from the rejection.

Crankshaft Grinding 550 mm diameter
Crankshaft Grinding 550 mm diameter

The crankshaft which meet with serious accident and are even rejected by the European Repair Companies are attended by Ra Power Solutions and are successfully repaired. This is possible because of having the technicians who have hand on experience of repairing more than ten thousand Crankshafts.

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 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 is done in minimum possible time. Thus reducing the breakdown time of the equipment considerably.

Crankshaft Grinding Mirrless Blackstone
Crankshaft Grinding Mirrless Blackstone
Crankshaft Grinding Wartsila 18 V32
Crankshaft Grinding Wartsila 18 V32

Presently we are undertaking Crank-pin and Main Journal grinding and repair up to 700 mm and are in 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-
Wartsila 6R32, 12V32, 18v32. Mirrlees Black Stone ESL, MAJOR K series Generators, Ruston, Allen, Yanmar, MAN B& W, Daihatsu engine etc.

For more details, please email us on info@rapowersolutions.com or call us on +91-9582647131

On Site Turbine Shaft Grinding-1
On Site Turbine Shaft Grinding
Crankshaft Repair
Onsite Crankshaft Repair
Insitu Crankshaft Grinding
Insitu Crankshaft Grinding
Repir of Crankshaft MAN B& W
Repir of Crankshaft MAN B& W
Crankshaft Repair
Crankshaft Repair
Offshore Grinding of Crankshaft is in Process
Offshore Grinding of Crankshaft is in Process

Crankshaft Repair Services India by RA Power Solutions

Crankshaft needs repair or grinding in case of following defects:

  • Development of excessive taper and ovality more than the tolerances stipulated.
  • Loss of alignment of crankshaft.
  • Seizure of bearing, development of line marks.
  • Development of pitting and rough surface of crankshaft main journal and crankpin

RA Power Solutions offer crankshaft repair services for last four decades to the land based engine and engines installed on vessels.

Crankshaft Repair Services While Vessel is Sailing
Crankshaft Repair Services While Vessel is Sailing
Crankshaft Grinding Services- Power Plant
Crankshaft Grinding Services- Power Plant

 

 

 

 

 

 

 

The onsite repair services of crankshaft helps in getting the engine back into operation in minimum time. Following crankshaft grinding services are offered by RA Power Solutions at Sea, on land or in shipyard:

  • Onsite Crankshaft Repair
  • Crankshaft Straightening
  • Onsite Crankshaft journal repair
  • Crankshaft Regrinding
  • Onsite Crankshaft polishing
  • Onsite Main bearing Regrinding
  • Onsite Crankshaft machining
  • Orbital crankpin machining/regrinding
  • Main bearing machining
  • Insitu Main bearing Main Journal Polishing

RA Power Solutions has technicians who are well trained and have executed successfully more than 11,000 jobs of crankshaft repair. We are also considered to be lowest priced in industry.

Crankshaft Grinding being done on a Small Crankpin Width
Crankshaft Grinding being done on a Small Crankpin Width
Crankpin After Grinding by Crankshaft Grinding Machine
Crankpin After Grinding by Crankshaft Grinding Machine

 

 

 

 

 

 

 

For any services related to crankshaft grinding, crankshaft repair, crankpin polishing or diesel engine repair, please free to write us on info@rapowersolutions.com

Inspection of Turbine Shaft – RA Power Solutions

Considering the continuous running and severe working condition of turbines it is advisable to conduct periodic inspection of turbine shaft. Following is recommended:

Inspection of Turbine Shaft
Inspection of Turbine Shaft
  • Inspection of turbine shaft bearing seating diameter for taper and ovality. This should be recorded.
  • Due to corrosion and fatigue cracks, it is recommended to undertake crack detection check preferably by magnetic particle test (MPI) or by dye penetrant test. This should be essentially undertaken by qualified technician.
  • Hardness Test – The hardness on the bearing seating area should be checked.
  • It is important that the turbine shaft bearing seating diameter is free of any bearing line marks, pitting, corrosion, etc and has the surface finish as per the international norms. This can be checked and surface finish can be improved by polishing the bearing seating area.

RA Power Solutions Pvt. Ltd. is providing above inspection services for turbine shaft, crank shaft, rotor shaft, alternator shaft and pump shaft for last more than 36 years all over the world and have served reputed companies. Our technicians are well trained, experienced and can be deputed to the site in a short notice.