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

Metal Stitching and Metal Locking of Engine Block by RA Power Solutions, India

There is no need of replacement of major components of engine or the equipment installed in heavy engineering plants in case of development of crack or damage of casting.

It is possible to undertake onsite repair of crack and damaged component irrespective of its application and profile by metal stitching and metal locking process.

JIBB PLATE OF 225 TON
JIBB PLATE OF 225 TON
BROKEN AREA
BROKEN AREA
REPAIR BY METAL STITCHING PROCESS
REPAIR BY METAL STITCHING PROCESS
FINISHED BY RA Power Solutions, India
FINISHED BY RA Power Solutions, India

The main features of undertaking crack repair and repair of damaged casting of engine block and heavy cast components by metal locking are as follow:

I) RA Power Solutions uses cold process of metal lock and metal stitching for repair of cracks and damaged components.

II) It is possible to replace the large portion of damaged components by using new casting piece, this is done by metal stitching and metal locking process.

Metal Stitching of Engine Block in Process
Metal Stitching of Engine Block in Process

III) Metal stitching and metal locking is the most trusted technology of crack repair as no heat is generated. It is a cold process and there is no change in the shape and profile of the component unlike in the welding process.

IV) Repair of crack by metal stitching and metal locking is possible onsite without disassembly of the equipment.

V) The crack repair and repair of damaged casting by lock and stitch method is far more cost effective than the purchase of expensive and new parts.

Only company providing crack repair services on board the vessel while it is sailing. All repairs undertaken are guaranteed by RA Power Solutions engineers.

A company with four decades of experience.

Metal Stitching and Metal Locking Under Progress
Metal Stitching and Metal Locking Under Progress
Engine Block Ready After Metal Locking Process
Engine Block Ready After Metal Locking Process

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

Babbitt Bearing and White Metal Babbitt Bearing Repair

RA Power Solutions has been the leaders in manufacturing of Babbitt bearings and repair of white metal Babbitt bearings lining of which gets worn out due to continuous operation. These services are offered by us for last four decades. The production of new white metal Babbitt bearings as per the drawing provided by the user is done alternatively it can also be manufactured as per the sample.

Turbine White Metal Pad bearing Under Manufacturing
Turbine White Metal Pad bearing Under Manufacturing

The new Babbitt bearing and white metal bearing after repairing i.e. rebabbitting can be tested by Lloyds, Veritas, etc if required. We follow stringent quality control procedure which includes testing of the bonding of white metal with steel lining by using latest breed of ultrasound equipment.

We are located close to New Delhi, India (International Airport) and can make necessary arrangements for import and re-export after repairs in a short duration and in economical way. That is the main reason of our catering to more than 36 countries for their critical requirement of new white metal Babbitt bearings and for rebabbitting of bearings in case they are damaged.

 

Inspection of White Metal Bearing
Inspection of White Metal Bearing
SKODA White Metal Bearing
SKODA Bearing

 

 

 

 

 

 

 

We develop and rebabbitt the following type of bearings:

I) Diesel engines Connecting rod and main journal bearing
II) Gearboxes
III) Turbines
IV) Generators- Alternator bearings
V) Pumps
VI) Compressors
VII) Propeller Shaft Bearings

Trimetal Bearing of Engine
Trimetal Bearing of Engine
Journal Bearing of Marine Engine
Journal Bearing of Marine Engine

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

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

 

Crankshaft Repair

Crankshaft repair is recommended in case of following:

I) Development of excessive taper and ovality in crank pin journal and crank main journal.

II) Development of crack and increase in hardness due to failure of bearing.

III) Loss of Alignment of crankshaft

IV) Development of deep bearing line marks, rough surface, pitting, etc.

Crankshaft repair is undertaken by rap by grinding of crankshaft onsite. Crank pin journal and main journal of crankshaft grinding is done of diameter ranging from 60 mm to 700 mm.

We are cost effective and have four decades of experience in Crankshaft repair and crankshaft grinding.

Crankshaft Repair
Crankshaft Repair

 

Crankshaft Grinding on Board a Vessel
Crankshaft Grinding on Board a Vessel

Marine Engine Bearings

Engine bearings for crankpin and main journal are manufactured by RA Power Solutions Pvt. Ltd. We also maintain stock of standard and undersized bearing in trimetal and bimetal of popular make and model of engines.

Alternator Bearing of Wartsila 12V32
Alternator Bearing of Wartsila 12V32
White Metal Bearing of Deutz Engine
White Metal Bearing of Deutz Engine

 

 

 

 

 

After grinding of crankpin and main journal of crankshafts undersize crankpin bearings and main journal bearings are required. It is observed that engine manufacturers in most of the times do not have inventory of undersized bearings, thus delaying the assembly and commissioning of engine.

Ruston Engine Bearing
Ruston Engine Bearing
Engine Bearing of Daihatsu DS 26
Engine Bearing of Daihatsu DS 26

 

 

 

 

 

 

 

 

RA Power Solutions undertake onsite grinding of crankshafts for last more than 37 years.We understand the importance of ready availability of standard bearing, undersized bearings of trimetal and bimetal and bearings for popular engines and models are available in stock. Following is the list of engine for which engine bearings are available.

MAN-B&W, Sulzer, Wartsila, Mak, Deutz, Pielstick, Mitsubishi, Daihatsu, Yanmar, Bergen, Niigata, Himsen, Allen, Stork, Fiat, MWM, Hanshin, Caterpillar, SKL, Ruston, Paxman, Crepelle, Mirrlees, Alco, ABC, Crepelle, Nohab etc.

Engine Bearings for MAN Diesel Engine
Engine Bearings for MAN Diesel Engine
Engine Bearing of Yanmar Diesel Engine
Engine Bearing of Yanmar Diesel Engine

 

 

 

 

 

 

RA Power Solutions stands guarantee for satisfactory performance of engine bearings. The main journal bearings and crank pin bearings are priced lower than the industry with immediate delivery.

Bearings for Diesel Engine
Bearings for Marine Diesel Engine

Author is Mr. Raj Shahani, Managing Director of the company. He is having more than 36 years of experience in rebabbitting of bearings, metal locking/metal stitching of crack steel casting, grinding and repair of all shafts and all services related to repair of engines and supporting equipments.

Company has in-house trained technicians, equipments, marine engine spares for all make and model of engine and serves all over the world.

For more information, please free to call us on +91-9810012383 and email us on info@rapowersolutions.com

 

Crack Repair of Cast Iron by Metal Stitching/Metal Locking Process

RA Power Solutions Pvt. Ltd. has recently undertaken crack repair of cast iron engine block by metal stitching and metal locking process. Engine block which is made of cast iron was broken from the window cover sitting area. The engine block was broken in to pieces measuring approximate 330 x 420 mm.

RA Power Solutions Pvt. Ltd. after getting the dimensions got the casting made of cast iron and it was metal locked and metal stitched on board a vessel. The engine after repairs is performing satisfactory.

Broken Engine Block
Broken Engine Block
Cast Iron Casting Prepared by RA Power Solutions Pvt. Ltd.
Cast Iron Casting Prepared by RA Power Solutions Pvt. Ltd.

 

 

 

 

 

 

In 37 years of experience we have executed more than 1000 jobs of crack repair by metal stitching and metal lock surgery not only for shipping but for all sectors of industry.

Perhaps we are the only company in the world to execute crack repair of engine components or any crack in metal on board a vessel while sailing.

Metal stitching and metal locking process on board the vessel:

Keys and Locks Used in Metal Locking and Metal Stitching Process
Keys and Locks Used in Metal Locking and Metal Stitching Process
Metal Stitching Under Progress on Board the Vessel
Metal Stitching Under Progress on Board the Vessel

 

 

 

 

 

 

 

Metal Stitching Under Process
Metal Stitching Under Process
Casting Piece Stitched in Broken Area of Engine Block
Casting Piece Stitched in Broken Area of Engine Block
Metal Stitching and Metal Locking Under Progress
Metal Stitching and Metal Locking Under Progress

 

 

 

 

 

 

 

Final finish given to Damaged Area of Engine Block
Final finish given to Damaged Area of Engine Block

 

 

 

 

 

 

 

 

 

Author is Mr. Raj Shahani, Managing Director of the company. He is having 37 years of experience in metal stitching and metal locking of crack repair, grinding of crankshaft and all services related to repair of engines and supporting equipments.

Company has in-house trained technicians,equipments and serves all over the world.