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