R. A. Power Solutions Private Limited
R. A. Power Solutions Private Limited
Sector 49, Gurgaon, Haryana
GST No. 06AADCR3779H1Z4
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In Situ Repair Services

We provide In Situ Repair Service that are Onsite Alternator Shaft Repair, Onsite Repair of Rotor Shaft to various industries. These services are rendered by most modern equipments available.Our  team,comprising of highly skilled engineers and technicians all of whom have many years of experience in carrying out these services. Our main focus is to provide accurate machining facilities on site reducing equipment downtime,and increasing productivity.

Inspection of Crankshaft

Inspection of Crankshaft
  • Inspection of Crankshaft
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Approx. Price: Rs 40,000 / onwardsGet Latest Price

Product Details:

Usage/ApplicationMarine, Steel Plant, Cement Plant, Power Plant and Heavy Industrial Plant

The quality control is an operation as much heavy as many are the Phases necessary for its execution. For this reason, carrying out all Measurements with a single tool means saving time, manpower and Improving the accuracy of control.
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On Site Inspection Of Crankshaft

On Site Inspection Of Crankshaft
  • On Site Inspection Of Crankshaft
  • On Site Inspection Of Crankshaft
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Product Details:

Usage/ApplicationMarine, Steel Plant, Cement Plant, Power Plant and Heavy Industrial Plant

Whenever there is an accident of engine, it is necessary to undertake crankshaft inspection. We suggest that all the crankshafts after 10 000to 15000 hours of operation should be subject to inspection. It is generally observed that crankpin and main journal diameter of the crankshaft develop taper and ovality or rough surface, bearing line marks.

 In case, the crankpin and main journal diameter are periodically inspected and polished, one can expect a long life of the crankshaft and bearings.

RA Power Solutions extends following services for insitu inspection of crankshaft:-

·  Dimensional inspection of crankshaft, main journal and crankpin.

·  MPI test for crack detection.

·  Hardness test.

·  Deflection

·  Run out

·  Visual inspection

We also undertake crankshaft inspection while sailing of the vessel. All our technicians have valid Indian CDC.

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Crankshaft Marine Engine

Crankshaft Marine Engine
  • Crankshaft Marine Engine
  • Crankshaft Marine Engine
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Approx. Price: Rs 10 Lakh / UnitGet Latest Price

Product Details:

Screen SizeStandard
Usage/Applicationmarine engine
CapacityStandard
Flash FrequencyStandard
Inside DiameterStandard
Maximum DepthStandard
Maximum TorqueStandard

RA Power Solutions Supply  High Capacity Diesel Engine Spares And Also Repairs The Marine Engine Parts  Like Crankshaft, Engine Block, Cylinder Heads, Bearings Etc.
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Crankshaft Replacement

Crankshaft Replacement
  • Crankshaft Replacement
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Product Details:

Usage/ApplicationMarine, Steel Plant, Cement Plant, Power Plant and Heavy Industrial Plant
Specific Problem/Issueall
Crankshaft Engine Typemarine diesel engine
Mode Of RepairingRepair By Crankshaft Grinding Machine
Inner DiameterStandard
Face WidthStandard

As an expert of crankshaft repair upto 700 mm diameter for the last 41 years RA Power Solutions is successful In repairing the crankshafts which meet even with serious accidents and are even  rejected by the manufacturer for one reason or another. By using the latest technology, experience and most modern and revolutionary crankshaft grinding machines in most of the cases, we are successful in undertaking the repair of the crankshaft. However, there are cases where the crankshaft is found beyond repair limit.

Crankshaft Replacement undertaken by RA Power Solutions

RA Power Solutions undertakes replacement of crankshafts for engines mounted on vessel and in industry. Our technicians have experience and are expert in replacement of old and damaged crankshaft with new one. Prior to the replacement of the crankshaft in the engine block, it is thoroughly inspected. After assembly of the new crankshaft, the important parameters like taper, ovality, deflection, run out etc are checked.

For your requirement of crankshaft replacement, you may contact RA Power Solutions. We have been working on engines like Wartsila, MAN B&W, MAK, SKL, Caterpillar, Ruston, DEUTZ, Alpha B & W, Bergen, Sulzer, MTU, nohab polar, Pielstick, Hatlapa, Mitsubishi, stork werkspoor, MVM, Yanmar etc
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Yanmar Diesel Generator Model No. 8N280L-EV Crankshaft Repair On Board the Vessel

Yanmar Diesel Generator Model No. 8N280L-EV Crankshaft Repair On Board  the Vessel
  • Yanmar Diesel Generator Model No. 8N280L-EV Crankshaft Repair On Board  the Vessel
  • Yanmar Diesel Generator Model No. 8N280L-EV Crankshaft Repair On Board  the Vessel
  • Yanmar Diesel Generator Model No. 8N280L-EV Crankshaft Repair On Board  the Vessel
  • Yanmar Diesel Generator Model No. 8N280L-EV Crankshaft Repair On Board  the Vessel
  • Yanmar Diesel Generator Model No. 8N280L-EV Crankshaft Repair On Board  the Vessel
  • Yanmar Diesel Generator Model No. 8N280L-EV Crankshaft Repair On Board  the Vessel
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RA Power Solutions was approached by one of largest shipping company based in Athens Greece regarding breakdown of Crankshaft of YANMAR Diesel Generator Model no. 8N280L-EV. Vessel was to take a berth at Mundra port India and the stay of the vessel at port was limited to only 13 hrs.

Following is the details of the crankshaft of Yanmar Diesel Generator Model no. 8N280L-EV 

S. NO

Crankshaft Details

 

1

Engine Make

YANMAR Diesel Generator

2

Engine Model

Model no. 8N280L-EV

3

Crank pin Diameter Standard

225 mm

4

Crankpin Bearing Width

93 mm

 


Action taken by RA Power Solutions for successful repair of Crankshaft of Yanmar Diesel Generator Model no. 8N280L-EV.

i) As mentioned above we were given only 13 hrs of time at Mundra Port India to inspect the crankshaft and to execute the repair. In this situation we decided to depute a team of three technicians onboard the vessel instead of two technicians which is our normal practice. 


Following are the main observation:
a) The diameter of crankpin no 4 was checked and following dimensions were observed:

     i) Minimum diameter observed    - 224.15 mm

     ii) Maximum diameter observed   - 225.00 mm

Above shows the ovality of 0.85 mm.

b) The crankpin no. 4 was subject to hardness check and was found within limits except on few scattered points where it was observed in the range of 500 HB.

c) The crankpin was subject to crack detection by high intensity magnaflux torch and no cracks or abnormally was observed. 

d) Due to the seizure of crankpin bearing the radius fillet of both the sides was badly damaged. 

 Successful Repair of Crankshaft of Yanmar Diesel Generator Model no. 8N280L-EV

 a) Our technicians worked non stop and were able to successfully repair the crankpin no. 4 by undersizing and grinding it to 1.0 mm.

b) After grinding & polishing following minimum & maximum crank pin diameter was maintained:

   i) Minimum diameter observed    - 223.98 mm
  ii) Maximum diameter observed   - 224.00 mm

c) The above reading shows the crankpin was undersized by 1.0 mm from 225.00 mm to 224.00 mm thus maintaining the ovality of only 0.02 mm which is far superior than the tolerance stipulated in the manufacturer manual. 

 d) The formation of radius fillet at both ends was a big challenge as it was badly damaged and time available was limited. The radius fillet was also repaired successfully. 

g) It is normal for RA Power Solutions to take such challenging jobs where the damage to the crankshaft due to an accident is very serious and time available is short.   

 h) We have a team of technicians which are experienced to take such challenging assignment. 

 

 

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Crankshaft Repair/ Crankshaft Machining Services In Malaysia

Crankshaft Repair/ Crankshaft Machining Services In Malaysia
  • Crankshaft Repair/ Crankshaft Machining Services In Malaysia
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We are pleased to advise that we have expanded our operation and extending crankshaft repair & engine overhauling services in Malaysia and neighbouring countries. With the opening of our office in Malaysia the local customers can avail our following services: 

  • Straightening, grinding and complete repair of Crankshafts.
  • Rebabbitting and Manufacturing of white metal bearings up to 1500 mm diameter. Development & Manufacturing of babbitt white metal bearings as per the drawing or sample. Engineers with CAD-CAM & instruments can be deputed at remote sites for preparation of drawing.  
  • Manufacturing & Export of Babbitt white metal of different grades as per client's requirement.
  • On site Metal stitching of damaged cast iron, aluminium, Bronze heavy components like engine blocks, cylinder liner, cylinder heads etc.

  • Supply of Spare Parts of all make from OEM.  

  • Ready stock of bearings Standard and special size.  
  • Inspection on site (Calibration, Hardness test, Magnetic Particle Test, Trueness, Deflection, Surface Roughness)
  • Supply of reconditioned spare parts and marine equipment like fresh water Generator,Heat exchangers, Compressors. DG sets etc.
  • Overhauling & repair of engines.  
  • Alternator repairs.
 
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Compressor Crankshaft Grinding and Alternator Shaft Repair Onsite

Compressor Crankshaft Grinding and Alternator Shaft Repair Onsite
  • Compressor Crankshaft Grinding and Alternator Shaft Repair Onsite
  • Compressor Crankshaft Grinding and Alternator Shaft Repair Onsite
  • Compressor Crankshaft Grinding and Alternator Shaft Repair Onsite
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In case of high and medium capacity diesel engines, the crankshaft gets damaged due to continuous running or gets worn out. This requires repair of crankshaft by highly precision equipment. Crankshaft grinding of compressor shaft, diesel engine, pump and all rotatory equipments is possible now onsite without removing the crankshaft from the compressor casing or engine block. RA Power Solutions undertakes onsite crankshaft grinding upto 700 mm diameter.

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Compressor Crankshaft Machining And Crankshaft Grinding

Compressor Crankshaft Machining And Crankshaft Grinding
  • Compressor Crankshaft Machining And Crankshaft Grinding
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RA Power Solutions undertakes repair of compressor crankshafts of different types of compressor used in industry. We can undertake onsite repair of crankshaft diameter ranging from 35 mm to 700 mm. The main advantage of getting the compressor crankshaft repair done from RA Power Solutions is that we have experience exceeding four decades in repair of compressor crankshafts and can undertake compressor crankshaft repair on site without removing it from engine block upto the crank pin diameter of  700 mm. 


 REASON FOR FAILURE OF COMPRESSOR CRANKSHAFT:-

  • Absence of lube oil on desired pressure is the main cause of failure of compressor crankshaft.
  • Use of sub-standard lubrication oil and non-replacement of oil as suggested in the maintenance manual.
  • Choking of lubricating oil filters and non-replacement on time.
  • High operating oil temperature.
  • Non-replacement of connecting rod and main journal bearings of compressor crankshaft as suggested in the manual.


ASSISTANCE PROVIDED BY RA POWER SOLUTIONS FOR ONSITE REPAIR OF COMPRESSOR CRANKSHAFT

  • As mentioned above, we have availability of portable, compact onsite compressor crankshaft grinding tools upto 700 mm diameter.
  • Our technicians visit the site with the tools and undertake the grinding of crank pin without removing the crankshaft from the compressor block.
  • Our technicians are fully trained for repair of seriously damaged compressor crankshafts due to accidents or normal wear and tear due to continuous running.
  • All the technicians are trained in our in house training school.
  • Technicians are qualified and carry valid CDC and can reach any site or vessel all over the world in a short time.


WE UNDERTAKE COMPRESSOR CRANKSHAFT REPAIR FOR FOLLOWING TYPE AND MAKE:-

  • Reciprocating Compressor
  • Rotary Screw Compressor
  • SIGMA Control Compressor Controller
  • Centrifugal Compressor
  • Gas Compressor
  • Positive Displacement compressor
  • Screw Compressor
  • Scroll Compressor
  • Dynamic Compressor
  • Centrifugal Compressor
  • Air compressor
  • Hydrogen compressor
  • Ammonia compressor
  • Turbo Compressor
  • Axial Compressor 
  • Refrigeration compressor
  • Makita
  • Senco
  • ANEST IWATA
  • Gardner Denver
  • Graham Sulzer
  • Hitachi
  • Bostitch
  • Rolair Systems
  • Brehob
  • Lufkin
  • Zebra 
  • Ingersoll Rand  
  • Grasso
  • Curtis-Toledo
  • Brehob
  • General Electric

 

 

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Onsite Compressor Crankshaft Grinding

Onsite Compressor Crankshaft Grinding
  • Onsite Compressor Crankshaft Grinding
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RA Power Solutions is a leader in repairing of compressor crankshafts onsite which can be seriously damaged due to an accident. The installation of compressor may be on a oil rig in high seas, vessels or oil and gas refineries or any industry.


With the introduction of the latest design of onsite compressor crankshaft grinding machines upto 700 mm, we are able to undertake the repair of compressor crankshaft which gets seriously damaged due to the failure of bearings, accidents or any other reasons.


REPAIR OF SERIOUSLY DAMAGED COMPRESSOR CRANKSHAFT SUCCESSFULLY BY RA POWER SOLUTIONS TECHNICIANS WHICH WAS REJECTED BY THE REPUTED CRANK SHAFT REPAIR COMPANY BASED IN EUROPE:-


We were approached by a company having various oil rigs in Saudi Arabia for repair of their compressor crankshaft of reputed make of compressor having standard crank pin diameter of 290 mm and main journal diameter of 320 mm.


Our team of senior technicians boarded the oil rig and the following action was taken for successful repair of the compressor crankshaft which was otherwise rejected by the compressor manufacturer and compressor crank shaft repair company.

  • Due to breakdown of the compressor, 60% of the operation come to the stand still incurring heavy losses on per day basis.
  • The crank pin of the compressor crankshaft having 290 mm diameter was badly damaged due to failure of bearing. The bearing material was badly stuck on the crank pin.
  • The damaged crank pin bearing was removed from the crank pin with great difficulty and crank pin diameter was polished to undertake the inspection.
  • The multiple cracks on crank pin diameter were observed, there was higher hardness than specified, taper and ovality of around 0.90 mm was also observed due to the failure of bearing.
  • In fact, due to presence of multiple cracks length ranging from 12 mm to 119 mm, the reputed world renowned compressor manufacturer rejected the crankshaft and advised to replace it with a new one offering delivery of 8 months from the date of placement of order and on exorbitant price.
  • After the planning of the repair strategy, the grinding of crank pin was started.
  • The number and intensity of cracks started vanishing during the process of grinding. The last under size crank pin permissible by the compressor manufacturer was 4 mm but RA Power Solutions technicians based on their experience and expertise decided to reduce the diameter of the crank pin by 6 mm and it was maintained as 284 mm against the standard crank pin diameter of 290 mm to save the compressor crankshaft from rejection and to resume the production.
  • In spite of under sizing the diameter by 6mm, 3 cracks measuring 10-25 mm were still present on the crank pin. The cracks on crank pin are not acceptable as per the class and international standards.
  • It was decided to remove the crack by the scooping technology.

 

For inspection of compressor crankshaft and on site repair of compressor crankshaft, please feel free to write to us or contact us for repairs with guarantee.

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Bergen Rolls Royce Crankshaft Repair / Rolls Royce Engine Crankshaft Grinding / RA Power Solutions

Bergen Rolls Royce Crankshaft Repair / Rolls Royce Engine Crankshaft Grinding / RA Power Solutions
  • Bergen Rolls Royce Crankshaft Repair / Rolls Royce Engine Crankshaft Grinding / RA Power Solutions
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Bergen Rolls Royce Crankshaft repair / Rolls Royce Engine Crankshaft Grinding / RA Power Solutions

 

RA Power Solutions was approached by one of our old client to undertake repair of Bergen Rolls Royce Engine Model no. B32:40 L8P crankshaft. 



The Bergen Rolls Royce engine and crankshaft have following major specifications:

 

S. NO

Crankshaft Details

 

1

Engine Make

Bergen Rolls Royce

2

Engine Model

Model no. B32:40 L8P

3

Crank pin Diameter Standard

270 mm

4

Crankpin Bearing Width

115 mm

 

 

Inspection of  Rolls Royce Engine Crankshaft undertaken by RA Power Solutions technicians  

 

RA Power Solutions technicians boarded the vessel at JNPT Port, Mumbai India and undertook the inspection of the crankshaft.

 

Following was the main observation:

 

i) On visual inspection it was observed that crankpin bearing of CR no. 3  was damaged and bearing material was found in the sump.

 

ii) On removal of the connecting rod  it was observed the connecting rod bearing was badly struck on the crankpin and even the bearing material was embedded in crankpin diameter. 

 

iii) After removal of bearing material from crankpin circumference the inspection of crankpin was undertaken. 

 

iv)The crankpin dimension was observed as follows:

 a) Minimum diameter observed 269.43 mm.

 b) Maximum diameter observed 269.89 mm.

 

v) The hardness was checked and was observed within the limit.  

 

vi) The crack detection of Rolls Royce Engine crank pin was conducted by MPI method and no crack or abnormality was observed.

 

vii) On visual inspection of crank pin deep bearing line marks were observed. 

 

Action taken by RA Power Solutions to repair the crankshaft of Bergen Rolls Royce Engine.

 

i) The Grinding of crankpin no. 3 was undertaken to the step size of 1 mm. The final size after grinding was maintained as 269.00 mm. 

 

ii) After final grinding/ Polishing of crankpin all the parameters like taper, ovality, hardness, crack detection and surface test were undertaken and report on our standard format was prepared.  

We have been regularly executing the repairs in Argentina, Bahamas, Barbados, Bermuda, Bolivia, Brazil, Canada, Chile, Colombia, Costa Rica, Cuba, Dominican Republic, Ecuador, El Salvador, Guatemala, Guyana, Haiti, Honduras, Jamaica, Mexico, Nicaragua etc.

 

 

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Repair Of Damaged Crankshaft On Site / Crankshaft Grinding RA Power Solutions

Repair Of Damaged Crankshaft On Site / Crankshaft Grinding RA Power Solutions
  • Repair Of Damaged Crankshaft On Site / Crankshaft Grinding RA Power Solutions
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RA Power Solutions have been executing on site crankshaft grinding and crankshaft repair services for the last more than four decades. We have experienced technicians  and on site grinding equipment available up to 700 mm diameter. 

The Main Advantage Of Appointing RA Power Solutions For Crankshaft Grinding & Crankshaft Repair:

1)Experience of more than 41 years in repair,grinding and polishing of crankshaft,cylindrical shaft,turbine,rotor,alternator shaft etc.

2)All our technicians are well experienced.

3) The crankshaft grinding machine is developed and manufactured by us and in case of limited availability of space the necessary modification in the equipment can be done in short notice. This is of great advantage in case of engine crankshafts where the bearing width is less.We modify the machine according to the bearing width dimensions.    

4) The on site crankshaft grinding machine is lightweight and can be taken to any site in the world as a accompanied baggage there is no need of booking it as cargo involving customs formalities, clearance etc which is expensive and time consuming. 

5) Equipment is Pneumatically operated and the client has to only arrange for the Air. 

6)We have the  instruments for checking hardness, crack detection by latest high intensity magnaflux torch, Mitutoyo instruments to check dimensions, surface finish electronic tester etc to undertake the inspection of crankshaft before and after the grinding is undertaken.. 

7) Our technicians are qualified to undertake non destructive magnetic particles tests and other examinations. Calibrate instruments are used for inspection purposes. 

8) We have in house training school where the technicians are trained and briefed about day to day development in the field of crankshaft repair with the availability of modern equipment.

Use of the latest technology equipment and process, having experienced technicians has made us the leader in the field of crankshaft grinding and crankshaft repair. We are respected for our sincerity and honest approach. 

We are serving all over the world and have reputed companies as our reference in more than 103 countries all over the world. 

 
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MAN 9 ASL 25/30 Crankshaft Repair

MAN 9 ASL 25/30 Crankshaft  Repair
  • MAN 9 ASL 25/30 Crankshaft  Repair
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Product Details:

Service LocationGurgaon

 

RA Power Solutions was informed by one of our client regarding failure of Crankpin no. 6 of AE#2 of MAN 9 ASL 25/30 Model Engine. 

The Engine details are as following:

 

S. NO 

 Crankshaft Details 

  

1 

 Engine Make 

MAN 

2 

Engine Model 

9 ASL 25/30 

3 

Crank pin Diameter Standard 

195 mm 

4 

Crankpin Bearing Width 

77 mm 


Our technicians boarded the vessel at Mumbai port and performed an evaluation of the crankshaft. 

Following were the main observations:

Inspection & observation of MAN 9 ASL 25/30 crankshaft of engine no. 2 crank pin no. 6:

i) During the visual inspection of crankpin  it was observed that the crank pin bearing got melted and was badly embadded on the crankpin. 

ii) The crankpin bearing was removed and was found badly damaged. It was a serious accident as the bearing was burnt which shows that temperature exceeded 600°/700° celsius. 

iii) The crank pin was polished and dimensional inspection was conducted. During the dimensional inspection the ovality of 0.66 mm was observed.   

iv) The radius fillet of both the sides was badly damaged. 

v) The crack detection by MPI and high intensity magnaflux torch was conducted by our qualified technician showed the multiple cracks, length ranging from 5 mm to 19 mm.

vi) The hardness was found on a higher side.


Action taken by RA Power Solutions technicians to repair crank pin of MAN 9 ASL 25/30 

i) The crankpin bearing width 77 mm only made the execution of the job very complicated.

ii) We used a specially designed onsite crankshaft grinding tool to be accommodated on the crankpin. 

iii) We could undertake the grinding of crankpin with damaged radius because of the use of the latest technology of crankshaft grinding equipment developed and manufactured by us.  

iv) Initially the grinding was done to undersize 0.5 mm and crank pin diameter was maintained 194.50 mm. On undertaking the MPI test the multiple cracks were still present on a critical location near the radius fillet. 

v) The grinding of crankpin was again resumed and crack detection by MPI method was undertaken at different stages.  

vi) Finally the crankpin diameter was reduced to 193.5 mm as all the cracks got removed.

vii) The engine was assembled, oil gap was checked and everything was obseved within limits. Engine  was commissioned.   

 

 

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Onsite Repair Of Damaged Radius Fillet Crankpin

Onsite Repair Of Damaged Radius Fillet Crankpin
  • Onsite Repair Of Damaged Radius Fillet Crankpin
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Product Details:

Service LocationOnsite Everywhere

RA Power Solutions have been successfully undertaking onsite repair of crankpin/ Main Journal for the last 41 years. We have the facilities to undertake repair of crankshaft diameter ranging from 30 mm to 700 mm. 

We have observed that due to accident the radius fillet of the crankpin and main journal gets damaged or worn out, In which condition it becomes difficult to undertake the grinding of the crankshaft as most of companies have the grinding tool which is placed on the radius fillet and undertakes the grinding by taking the reference of fillet radius. 

In this situation the crankshaft repair companies either reject the crankshaft or recommend sending the crankshaft to a designated workshop for the repair.   

We are the only company in the world which can undertake the grinding of crankpin having damaged radius fillet. We have the credit and experience of successfully undertaking the repair of crankshaft radius fillet of which is damaged or worn out.   

 

Successful Repair of Crankshaft with damaged Fillet radius:

i) It is generally noticed that in case of seizure of bearing the bearing material gets embedded on the crankpin and the radius fillet of both the sides. 

ii) Radius fillet gets damaged either during the failure of bearing as the bearing steel shell rubs with the radius fillet or the bearing material gets embedded on the radius fillet which while removing damages the radius fillet.

iii) Crankshaft repair companies take the reference of radius fillet for grinding purpose and are not able to undertake repair due to damage radius fillet.   

iv) RA Power Solutions has the necessary tools, equipment and expertise for repair of crankshaft having damage radius fillet. 

v) Don't reject or and send it to the workshop contact RA Power Power Solutions who will undertake the repair of damage radius fillet crankshaft onsite whether on vessel or for land base engines.    

vi) Our technology and equipment is so advanced that the damaged  radius fillet crankshaft repair is possible even while the vessel is sailing in a disturbed condition. 

We have successfully executed damage radius crankshaft repair of MAN B&W, Yanmar, Daihatsu, Wartsila, Ruston & Hornsby Engine etc. 

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Cylinder Liner Exporter

Cylinder Liner Exporter
  • Cylinder Liner Exporter
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Babbitt Bearings play a very important role in operation of heavy industrial machinery, Diesel Engine, Turbine, Alternator etc. It is important that the quality of babbitt Bearing used is proven and meets with all International standard and technical specifications. 

RA Power Solutions having 41 year of experience in undertaking onsite repair of shafts understand the importance of high quality and reliability of babbitt Bearing. 

We undertake onsite grinding, polishing and repair of shafts up to 700 mm diameter. We  manufacture new babbitt bearings or undertake rebabbitting of old bearings. The shafts on which we regularly work are as following:

i) Crankpin and main journal of crankshaft of main engine,auxilary engine, compressor etc.

ii) Electrical Motor shafts diameter ranging from 35 mm onwards. 

iii)Turbine shaft, Rotor shaft and Alternator shaft used in Power sector.

iv) Compressor, Crankpin and main journal. 

RA Power Solutions manufactures and supplies all over the world babbitt bearing of different grades of white metal.All white metal babbitt bearings supplied by us stand guarantee for satisfactory performance. 


In order to maintain the high quality and international standard of babbitt bearing we follow the lattest manufacturing process gist of which is given below:

Manufacturing steps for babbitt bearing:

i) Selection of outer casing of bearing is done keeping in view of the application of the bearing load, the characteristic of designing and various other factors.The outer bearing casing can be of forged steel,casting of MS pipe.  

ii) After machining the bearing steel shell is subject to grit blasting. 

iii) The bearing shell at this stage is subject to NDT which includes crack detection, hardness test, ultrasound.

iv) The babbitt white metal casting is done on the centrifugal machine where the babbitt white metal temperature is controlled.


This procedure of centrifugal casting of babbitt white metal ensures uniform and strong bonding with the steel shell. After final machining  all the bearings are subject to ultrasound test to check the bonding of the babbitt white metal. 

Cylinder Liner manufacturer and exporter


RA Power Solutions has emerged as a leading manufacturer and exporter of cylinder liner. The Cylinder liners are manufactured by us for all popular make & model of main engine, auxiliary engine,compressor. 

The Cylinder Liners up to 1500 mm length are manufactured by centrifugal casting process. 


The machining of the liner is undertaken in house maintaining all the dimensions strictly as per the OEM standard.


We regularly develop and manufacture cylinder liners for Diesel Engine, compressor, rotating equipment manufacturing of which is discontinued.We develop and manufacture cylinder liners as per drawing or sample provided by our client.

For development & manufacturing of heavy weight cylinder liners we have a team of engineers who visit the plant or vessel with all necessary instruments and CAD/CAM. They prepare the drawing of heavy cylinder liners on the spot and cylinder liners are manufactured according to the drawing prepared by our engineer. 

We have been regularly exporting the bearings/ cylinder liners to Bahrain, Bangladesh, Bhutan, Brunei, Burma, Cambodia, East Timor, Georgia, Hong Kong, India, Indonesia, Iran, Iraq, Israel, Japan, Jordan, Kazakhstan, Kuwait, Kyrgyzstan, Laos, Lebanon, Malaysia, Mongolia, Nepal, North Korea, Oman, Papua New Guinea, Philippines, Qatar etc.

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Crankshaft Repair

Crankshaft Repair
  • Crankshaft Repair
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RA Power Solutions  undertakes crankshaft repair of diesel engine used as generator, marine engine & auxiliary engine, compressor, forging hammers and all heavy rotatory equipment's having crankshaft or cylindrical shafts upto 700 mm diameter.  

Advantages of crankshaft repair services offered by RA Power Solutions. 

We are mentioning below few of the advantages of getting crankshaft repair executed by RA Power Solutions. 

  i) We believe that the crankshaft is a piece of art and even for the heavy crankshafts the tolerance in terms of taper and ovality ranges between 20 to 50 microns which is very less and requires experience, special skill and dedicated latest design of equipment to maintain.  

 ii) RA Power Solutions is the only manufacturer of the onsite crankshaft grinding machine in the world and has supplied over 70 machines which are in operation by leading shipping companies, Power Plants and repair workshops etc.   

 iii) Our designing and manufacturing of onsite crankshaft grinding machines for crankshaft repair can be easily modified according to the site requirement. 

 iv) Difficult and serious damage of crankshaft are successfully repaired as we have in-house capability of modifying our equipment as per the site requirement and condition.
 
v) Most of the companies based in Europe, UK undertaking crankshaft repair cannot successfully execute the repair of crankshaft radius fillet of which is damaged or worn out due to accident. They always recommended to either remove the crankshaft from the engine block and send it to the workshop or to reject it.  

Availability of trained & experienced technicians for crankshaft repair : 

 i) All our technicians are trained in our in-house training school near New Delhi, capital of India.   

 ii) The technicians are trained on dummy crankshafts under the senior supervisions, who has experience of 30 and 40 years in crankshaft repair.  

iii) Our mission is to create awareness and make it understandable to our clients all over the world that it is not a difficult task to repair the crankshaft, which few companies have been propagating and made monopoly by charging exorbitant price. 

 Low cost of crankshaft repair offered by RA Power Solutions  

 We are the cheapest in the world executing crankshaft repair at minimum cost.  

 We don't charge separately for NDT test, cost for repair of radius fillet, out of station allowance etc. 

 We have successfully executed damaged crankshaft repair of MAN B&W, Yanmar, Daihatsu, Wartsila, Ruston & Hornsby Engine etc.  

We have been regularly executing the repairs in Argentina, Bahamas, Barbados, Bermuda, Bolivia, Brazil, Canada, Chile, Colombia, Costa Rica, Cuba, Dominican Republic, Ecuador, El Salvador, Guatemala, Guyana, Haiti, Honduras, Jamaica, Mexico, Nicaragua etc. 

 

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Daihatsu 5DK-20 Aux Engine Crankshaft Repair

Daihatsu 5DK-20 Aux Engine Crankshaft Repair
  • Daihatsu 5DK-20 Aux Engine Crankshaft Repair
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We were approached by a ship management company based in Athens, Greece having ninety vessels regarding breakdown of the crankshaft of Daihatsu Engine 5DK-20.

 

The engine & crankshaft details are given below:


S. NO

Crankshaft Details

 

1

Engine Make

Daihatsu

2

Engine Model

5DK-20

3

Crankpin Diameter Standard

170 mm

4

Crankpin Bearing Width

78 mm

5

Place of Execution of Job

Navlakhi Port (INDIA)


RA Power Solutions team of two technicians with portable crankshaft repair equipment was immediately deputed to Navlakhi Port in western part of India. On inspection of crankshaft following was observed:

 

Main observations of the crankshaft of Daihatsu Engine 5DK-20 after inspection

 

i) The crankpin no. 3 was badly damaged due to seizure of the bearing. The bearing white metal was badly embedded on the crankpin diameter. 

 

ii) On visual inspection it was observed that the radius fillet of both sides was  damaged and original profile of radius fillet was lost. 

 

iii) After removal of bearing material from the crankpin diameter deep scoring marks and multiple depressions were observed.

vi)The crankpin was subject to MPI test for crack detection, multiple cracks were observed having length ranging from 3.0 mm to 19 mm. All the cracks were hairline cracks.  

v) Hardness was taken and was found on the higher side even up to 515 BHN. This was the scattered hardness. 

vi) Deflection of complete crankshaft was checked and was observed within limits. 

 


 

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In Situ Crankshaft Grinding

In Situ Crankshaft Grinding
  • In Situ Crankshaft Grinding
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Approx. Price: Rs 40,000 / onwardsGet Latest Price

Product Details:

Technology AvailableCylindrical Grinding external
Type Of Grinding Machinepneumatic insitu grinding
Location/Cityonsite
Processesgrinding and polishing
Grinding Machine AvailableCylindrical Grinder
Material ProcessedSteel
Industries ServedMarine, Steel Plant, Cement Plant, Power Plant and Heavy Industrial Plant
Area Of GrindingStandard
Inner DiameterStandard
Face WidthStandard
Crankshaft Engine TypeAll

In-situ crank shaft grinding is the latest process of grinding and polishing of crankshaft, CR pin and main journal without removing crankshaft from the engine block. The in-situ crankshaft grinding and in-situ repair of crankshaft saves time as it does not require removal of crankshaft from the engine block. RA Power Solutions has the facility to undertake crankshaft repair up to the diameter of 700 mm.
Ours is the only company which can do on site crankshaft grinding and on site crankshaft polishing while vessel is sailing having four decades of experience in crankshaft repair.
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Additional Information:

  • Delivery Time: 5-6 weeks
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Repair of 6 MW Cracked Engine Block

Repair of 6 MW Cracked Engine Block
  • Repair of 6 MW Cracked Engine Block
  • Repair of 6 MW Cracked Engine Block
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Approx. Price: Rs 10 Lakh / OnwardsGet Latest Price

Product Details:

Usage/ApplicationIndustries
WeightStandard
LengthStandard
DesignStandard
DiameterStandard
CapacityStandard

Repair of 6 MW cracked engine block has been executed by RA Power Solutions. The crack engine block of Wartsila was successfully repaired by use of special alloy keys to undertake metal locking and metal stitching.
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Polishing of Crankshaft

Polishing of Crankshaft
  • Polishing of Crankshaft
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Approx. Price: Rs 40,000 / onwardsGet Latest Price

Product Details:

FinishPolished
Types Of Metal PolishingMirror Polishing
ProductsCrankshafts
Material RequiredNo
Frequency RequiredOne Time Requirement
CertificationYes
Industry ServedMarine, Steel Plant, Cement Plant, Power Plant and Heavy Industrial Plant
Types Of SteelHammered Steel
TechniquePolishing
FeaturesOnsite Polishing
MetalsSteel

Our system holds expertise in Polishing of Crankshaft. The polishing of crankshaft is done to remove the bearing line marks.

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On Site Crank Shaft Grinding

On Site Crank Shaft Grinding
  • On Site Crank Shaft Grinding
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Approx. Price: Rs 10 Lakh / OnwardsGet Latest Price

Product Details:

Technology Availablecylindrical grinding external
Type Of Grinding Machineshaft grinding
Location/Cityonsite
ProcessesGrinding and Polishing
Grinding Machine Availableshaft grinding
Area Of GrindingStandard
Inner DiameterStandard
Face WidthStandard
Outer Diameter700 mm
SizeStandard

We have been into the process of onsite crank shaft grinding over four decades.  It saves down time, cost and knock out the risk factors involved in shipping and handling of Crankshaft.  We have modern crankshaft grinding machines which create minimum vibration. Thus maintaining close tolerance. The onsite crankshaft grinding is undertaken by our experienced technicians.
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Marine Diesel Engine Maintenance

Marine Diesel Engine Maintenance
  • Marine Diesel Engine Maintenance
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Product Details:

Service LocationOnsite Everywhere
PowerMore than 400 kva
MaterialHeavy Duty
CapacityMore than 400 kva
Mode Of RepairingDisassembly and Replacing Damaged Parts
Specific Problem/IssueAll issues
Type Of ServiceOverhauling
Usage/ApplicationMarine, Steel Plant, Cement Plant, Power Plant and Heavy Industrial Plant
Services ChargeYes
Engine Stroke4 Stroke
TechniqueEngine Overhauling
Engine TypeInline and V type

RA Power Solutions have been involved in marine diesel engine maintenance over four decades. Our team of qualified engineers uses latest technology for marine engine maintenance. And overhauling. We have executed number of projects of major overhauling of diesel engine in Qatar, Dubai, etc.
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Crankshaft Machining Repairing

Crankshaft Machining Repairing
  • Crankshaft Machining Repairing
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Approx. Price: Rs 40,000 / onwardsGet Latest Price

Product Details:

Service LocationOnsite Everywhere
PowerPNEUMATIC
MaterialSteel
Capacity700 MM

We have specialization in rebuilding and repairing the crank shafts, cylindrical shaft, castings and mechanical components, which are damaged and worn out beyond the last permissible limit. We are renowned for repairing manufacturing errors, to repair an obsolete part or a part that has worn excessively. The reclamation of crankshaft (and many other components) can produce considerable saving over the replacement cost, wherein saving of 50% is common and in case of large components, as much as 90% can be saved. Our trained engineers work on site and in the factory to provide highest quality of rebuilding techniques. This helps us to achieve high specification irrespective of all types of components with the assistance of latest equipment.


General Applications:


  • Repair and Reconditioning
  • Erosion preventing coating
  • Anti-Corrosion
  • Heat Shield
  • Erosion Prevention
  • Insulation

Deposit materials mainly used are:

  • Steel
  • Tungsten Carbide
  • Chrome Carbide
  • Ceramics and Plastic Composite

Our Techniques are as follows:

  • Flame Spraying
  • Plasma Spraying
  • High Velocity Oxygen Fuel
  • Arc Spraying
  • Thermal spraying

Advantages:

  • Rebuilding provides a smooth, wear - resistant surface with a low co-efficient of friction
  • Especially for crankshafts which require a hard surface on the crankpins and main journals, thermal spraying is the best build-up method
  • It is a "Cold" process, the risk of heat warp age by welding and the need for subsequent straightening is eliminated
  • A prime financial benefit of this application is in saving the replacement cost of the components and in some cases, saving the replacement cost of the engine itself, when new parts are not obtainable
  • Depending on the local cost of labour, the cost of repairing of the crankshaft will vary. But having repaired so many crankshafts our experience shows that replacement cost of components is very economical.
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Marine Engine Repair

Marine Engine Repair
  • Marine Engine Repair
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Approx. Price: Rs 10 Lakh / OnwardsGet Latest Price

Product Details:

Usage/ApplicationMarine, Steel Plant, Cement Plant, Power Plant and Heavy Industrial Plant

We Have Been In Engine Repairs And Maintenance From Over four Decades. We Offer Engine Repair, Maintenance And Overhaul Services With A Guarantee. We Have Successfully Repaired Marine Engine To Companies Based Qatar, Dubai, Maldives, Sri Lanka Etc.  We Have Team Of Trained Engineers And Technicians Who Can Be Deputed At Site To Undertake For Preventive Maintenance And Overhauling Of The Diesel Generating Sets Respective Of Their Make And Models.
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Turbine Shaft Polishing

Turbine Shaft Polishing
  • Turbine Shaft Polishing
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Approx. Price: Rs 10 Lakh / PieceGet Latest Price
Turbine shaft polishing up to diameter of 1500 mm is done. The turbine shaft polishing is undertaken onsite without removing the turbine shaft from the main equipment. Tolerances as per the manufacturer are strictly maintained.
White metal Babbitt turbine bearings are manufactured and rebabbitting of old white metal bearings is done.
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Injection Pump Complete Assembly

Approx. Price: Rs 10 Lakh / OnwardsGet Latest Price
Injection Pump Complete Assembly
  • Injection Pump Complete Assembly
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Injection Pump Complete Assembly (For Vasa Wartsila 18V32 )
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Reach Us
Raj Shahani (Managing Director)
R. A. Power Solutions Private Limited
Corporate address: Unit No. 411, 4th Floor, Unitech Arcadia, South City - 2
Sector 49, Gurgaon - 122018, Haryana, India


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