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

Engine population is rapidly increasing for 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 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.

Damaged Crankpin of Engine
Damaged Crankpin of Engine
Inspection of Engine Before Grinding
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 This is now outdated.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 onsite crankshaft grinding machine which can be taken to the site as an accompanying baggage. The onsite crankshaft grinding machine has following features:

 I) Light in weight, can be carried to the site easily.

II) Portable nature of onsite crankshaft grinding machine facilitates it to insert from the inspection window and undertake grinding and polishing of crankpin.

III) Machine is designed and can maintain the taper and ovality within 0.02 mm. This meets with the OEMs tolerances.

IV) Surface finish and other parameters can be maintained as per the international norms.

V) Onsite crankshaft grinding machine is easy to operate

VI) Onsite training is provided for smooth running of crankshaft grinding machine.

VII) More than 70 machines sold all over the world and performing satisfactory.

VIII) 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
Inspection of Connecting Rod on Board a Vessel
Inspection of Engine is in Process
Inspection of Engine is in Process

 

 

 

 

 

 

 

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

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

Grinding of Crankpin is in Process
Grinding of Crankpin is in Process
Crankpin After Grinding
Crankpin After Grinding

Crankshaft Machining | Crankshaft Grinding | Crankshaft Polishing | Onsite– RA Power

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 crankshaft from the engine block incase of accident or normal wear and tear is not required. The removal of 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 engine.

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

Crankshaft Machining on Board a Vessel
        Crankshaft Machining on Board a Vessel

The onsite crankshaft grinding machine is placed on the damage 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 grinding of crankshaft and polishing of diameter ranging from 60 mm to 700 mm.

Onsite Crankshaft Grinding & Polishing Machine
Onsite Crankshaft Grinding & Polishing Machine
Crankshaft Grinding Machine- Grinding Crankpin
Crankshaft Grinding Machine- Grinding Crankpin

 

 

 

 

 

 

 

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

I) Having latest quality control measuring instruments to check hardness, crack by MPI, taper, ovality , surface finish, etc.

II) All instruments used for measuring the crankpin and main journal diameter are periodically sent to the laboratory for calibration. Valid certificate are kept in record as per the requirement of inspection agencies.

III) Latest design and technology instruments/Equipments are used prior to repair of the crankshaft and after the repair are executed.

Grinding of Crankpin is in Process
          Grinding of Crankpin is in Process

Advantage of RA Power Solutions for Crankshaft and Main Journal Repair

I) Crankshafts are repaired onsite up to the diameter of 700 mm. No need of removal of crankshaft.

II) Experienced team of technicians is always ready to leave for sailing all over the world.

The holding of seamen passport by technicians’ facilitates them to fly out to any country in short notice.

III) The robust design, use of titanium for manufacturing the body of crankshaft grinding machine ensures minimum or no vibration while crankshaft grinding machine is in operation. The job of repair of crankshaft can be executed while the vessel is sailing.

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

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

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

Finished Crankpin After Grinding
Finished Crankpin After Grinding
Damaged Crankpin Before Grinding
Damaged Crankpin Before Grinding

Crankpin Grinding | Crankpin Repair by Insitu Crankshaft Grinding Machine- RA Power Group

Crankpin grinding, crankpin repair by insitu crankshaft grinding machine is offered by RA Power Solutions through 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 the experienced technicians in order to detect the fault after the damage or accident.

Damaged Crankpin of Yanmar Engine
Damaged Crankpin of Yanmar Engine
Inspection of Crankpin Under Process
Inspection of Crankpin Under Process

 

 

 

 

 

 

 

Following are the major parameters which are examined before the repair of crankshaft:

I) Minimum and maximum diameter of the crankpin and main journal, taper and ovality is checked.

II) Run out of main journals and deflection readings are taken to verify the loss of alignment.

III) Complete non-destructive test using MPI and ultraviolet lamp for heat cracks is undertaken of crankpins and the main journal of the crankshaft.

IV) Crankshaft is also subject to 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 light weight 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 out dated.

Inspection of Crankshaft by Latest UV Torch
Inspection of Crankshaft by Latest UV Torch
Crankpin Grinding of Diesel Engine While Vessel is Sailing
Crankpin Grinding of Diesel Engine While Vessel is Sailing

The crankshaft grinding and crankshaft polishing is undertaken maintaining taper and ovality, surface finish as per the OEMs requirement. RA Power Solutions have facilities to undertake insitu crankshaft grinding, crankshaft polishing and crankshaft repair up to the diameter of 700 mm without removing the crankshaft from the engine block.

During and after the repairs all the major technical parameters are checked and 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 passport and can travel to any part of the world in a shortest possible time thus attending to the damaged engine in short time. We are class approved and stand guarantee for the satisfactory performance of crankshaft after repairs.

We are commonly working on 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, email us on info@rapowersolutions.com

Crankshaft Radius Under Machining
Crankshaft Radius Under Machining
Crankpin Grinding and Crankpin Polishing is in Process
Crankpin Grinding and Crankpin Polishing is in Process

Onsite Crankpin Grinding- Large and Small Engine Repairs

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
Onsite Crankshaft Grinding While Vessel is on Move

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

I) Experience technicians undertake crankshaft inspection which includes dimensional calibration for taper, ovality and hardness testing.

II) In case of failure of bearing or serious damage, it is important to undertake crack check. We recommend magnetic particle inspection and dye penetrant.

III) Checking  loss of alignment of crankshaft by deflection gauge or taking the run-out of the main journal.

IV) Straightening of crankshaft is undertaken if required.

V) Radius fillet original profile is maintained in case of damage.

VI) Onsite crankshaft grinding, crankshaft repair is undertaken by using

Onsite Crankshaft Grinding Machine
Onsite Crankshaft Grinding Machine

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

VII) 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:

I) Company having 40 years of experience in repair of crankshaft can easily detect the damage caused to the crankshaft due to accident.

II) 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 latest technological equipment.

III) Large team of experienced technicians having valid passport and seaman book and  can travel all over the world in shortest possible notice.

IV) In field of crankshaft repair we are the leaders, most experienced, sincere and trust able.

V) The services provided is on the lowest rates and can be compared with other companies.

VI) Only company having executed more than 11,000 jobs of crankshaft repair and engine overhaul maintenance worldwide.

VII) All the repair services related to high capacity diesel generating sets is offered with guarantee.

Inspection of Crankpin is in Process
Inspection of Crankpin is in Process
Repair of Crankpin by Crankshaft Grinding Machine
Repair of Crankpin by Crankshaft Grinding Machine

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.

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

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

Crankshaft Grinding, Crankshaft Polishing and Crankshaft Repair Machine

RA Power Solutions is the first company to introduce portable, light weight, onsite crankshaft grinding, crankshaft polishing and crankshaft repair machine on the lowest price.

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

Onsite Crankshaft Grinding Polishing Machine having following features:

I) Onsite Crankshaft Grinding Polishing machine can undertake crankshaft grinding and crankshaft polishing up to 700 mm diameter without dismantling of crankshaft.

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

In terms of taper and ovality tolerance can be maintained within 20 to 30 microns or as per the manufacturer’s requirement.

II) For long life of bearings and crankshaft it is important to have high level of surface finish with Onsite Crankshaft Grinding Polishing Machine it is possible to maintain surface finish 0.15 RA value.

III) Onsite Crankshaft Grinding Polishing Machine is easy to operate and on job training is also provided.
IV) Onsite Crankshaft Grinding Polishing Machine can be carried as a accompanied baggage by the technicians all over the world.

V) 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 crankshaft can be repaired like MAK, MAN, Wartsila, Daihatsu, Ruston, Yanmar, Mirrless Blackstone, SKODA, etc.

VI) Onsite Crankshaft Grinding Polishing Machine supplied all over the world including Nigeria, Dubai, Singapore, South America, Italy, Maldives, Indonesia, Bangladesh, etc.

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

Grinding of Crankpin by Crankshaft Grinding Machine is in Process
Grinding of Crankpin by Crankshaft Grinding Machine is in Process
Crankshaft Grinding Machine for High Diameter
Crankshaft Grinding Machine for High Diameter

Crankshaft Grinding Machine

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 on a low cost and on job training is provided. For more information, please email us on rajshahani@rapowersolutions.com

Crankshaft Grinding Machine
Crankshaft Grinding Machine
Onsite Grinding Machine for Small Diameter
Onsite Grinding Machine for Small Diameter

Crankshaft Grinding by Pneumatic Grinding Machine

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 dis assembly of the crankshaft from the engine block.

Pneumatic Crankshaft Grinding Machine
Pneumatic Crankshaft Grinding Machine

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 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.

Crankshaft Grinding by Pneumatic Grinding Machine
Crankshaft Grinding by Pneumatic Grinding Machine
Crankshaft Grinding & Repair by Grinding Machine is in Process
Crankshaft Grinding & Repair by Grinding Machine is in Process

Crankshaft Repair & Crankshaft Grinding by Crankshaft Grinding Machine

Crankshaft Repair does not require crankshaft to be removed from entablature. In recent past due to seizure of bearing or development of taper, ovality, loss of alignment of 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.

Crankshaft Repair by Crankshaft Grinder
Crankshaft Repair by Crankshaft Grinder

The introduction of a light weight, vibration free crankshaft grinding equipment facilitates grinding of crankshaft, crankpin and crank main journal on the spot while the crankshaft is assembled in the engine block. There is no necessity of even decoupling of 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 centre less, vibration free equipment which ensures that the centre line of the crankpin is maintained. The crankshaft grinding and crankshaft polishing is done in one setting.

Crankpin Repair
Crankpin Repair
Portable Crankshaft Grinder
Portable Crankshaft Grinder

 

 

 

 

 

 

 

The crankshaft grinding machine is manufactured by us of 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.

Company has sold more than 65 crankshaft grinding machine all over the world which are performing satisfactory. The machines are priced low and are ideally suited for large engineering, shipping companies, repair workshops, etc.More then 10000 Crankshafts are  successfully repaired by us which is a record.

Crankpin After Repair
Crankpin After Repair
Crankshaft Grinding from Engine Block Window
Crankshaft Grinding from Engine Block Window

 

 

 

 

 

 

 

For more information,

Call: +91 – 124 – 4378292 , +91 9213604692

Email: rajshahani@rapowersolutions.cominfo@rapowersolutions.com

Repair of Crankshaft on Board a Vessel

Crankshaft repair is possible without removing the crankshaft from the block.

Crankshaft Repair on Board a Vessel
Crankshaft Repair on Board a Vessel

In case of failure of bearing, it is generally observed that the crankshaft is damaged. While it is easy to replace the bearings it is challenging proposition to undertake the repair of crankshaft and put the engine back in to operation.

Removal of crankshaft for repair from the engine block inevitably translates to high cost of repair and downtime. RA Power Solutions undertakes repair of crankshaft on site without removing it from the engine block. The portable, light weight crankshaft grinding machine is taken to the site by experienced technicians to undertake crankshaft repair by grinding.

Repair of Crankshaft from Engine Block Window
Repair of Crankshaft from Engine Block Window

The important parameters prior to crankshaft repair are checked like taper and ovality, hardness, crack, physical profile of lube oil and radius fillet, etc. In the event all the major parameters falls within the stipulated tolerances of the manufacturer’s specifications and tolerances crankshaft repair is undertaken.

RA Power Solutions can undertake crankshaft repair of diameter ranging as small as 60 mm to 700 mm onsite. The repair of crankshaft is also possible on board the vessel or while the vessel is sailing in high seas. All our technicians have necessary qualifications and have valid seaman passport.

Repair of Crankshaft and Engine Block After Major Accident
Repair of Crankshaft and Engine Block After Major Accident

RA Power Solutions has successfully undertaken repair of more than 10,000 crankshafts and is having four decades of experience to execute crankshaft repair successfully.

Crankshaft Grinding
Crankshaft Grinding