Link Archives - Connecting Rod Repair

Peroni Pompe Crankshaft Repair | Save Crankshaft From Rejection

RA Power Solutions has recently undertaken onsite repair of the crankshaft of Peroni pump manufactured and supplied by Peroni Pompe Italy. The crankshaft has three number of crankpin with a standard diameter of 215 mm, developed taper/ovality, and a rough surface. This problem caused frequent damage to the crankpin bearings, leading to major shutdown of the plant and heavy financial losses for the company.

**Onsite Machining Of Peroni Pompe Italy Crankshaft**

The crankshaft of Peroni Pump manufactured by Peroni Pompe Italy, was inspected by RA Power Solutions technicians for the following parameters:

Dimensional inspection of crankpin for taper & ovality. The ovality ranging from 0.06 mm to 0.18 mm was observed.
The MPI test was conducted with a high-intensity Magnaflux torch and no abnormality was observed. Few superficial hairline cracks were observed, which may be due to rubbing of the crankshaft bearing steel lining with the crankpin diameter.
The hardness of the crankpin was observed within limits.
On visual inspection, bearing line marks and a rough surface was observed.

**Grinding & Polishing Of Crankshaft Of Peroni Pompe Italy**

Action Taken by RA Power Solutions for Repair of Peroni Pompe Crankshaft:

It was jointly decided with the client to undertake grinding of all three crankpins to the first step size of 0.5mm.
The grinding of crankpin was executed onsite, and the final diameter was maintained between 214.48 and 214.50 mm.
We are giving below the dimensions of the crankpin before and after the grinding job was executed by RA Power Solutions.

**Insitu Machining & Polishing Of Crankshaft Of Peroni Pompe Italy**

Size of CR Journal

	A	Aa	C	Cc	B	Bb	Min	Max	Ovality
CR-1 Before	214.95	214.96	214.95	214.92	214.88	214.88	214.88	214.96	0.08mm
CR-1 After	214.48	214.48	214.49	214.48	214.49	214.50	214.48	214.50	0.02mm
CR-2 Before	214.88	214.89	214.92	214.94	214.88	214.93	214.88	214.94	0.06mm
CR-2 After	214.48	214.50	214.49	214.48	214.50	214.49	214.48	214.50	0.02mm
CR-3 Before	214.69	214.84	214.87	214.83	214.80	214.81	214.69	214.87	0.18mm
CR-3 After	214.49	214.50	214.50	214.49	214.49	214.48	214.48	214.50	0.02mm

Undersize Crankpin Bearing for Peroni Pompe

The crankpin bearings, undersized by 0.5 mm, were manufactured by RA Power Solutions and supplied to the client. The Peroni Pompe was commissioned, and the performance of the crankshaft and bearings was found satisfactory.

RA Power Solutions, with over 43 years of experience, specializes in onsite crankshaft repair for engines, compressors, pumps, forging hammers, and all rotating equipment. Our technicians have valid visas and can travel all over the world with the in-situ grinding machine to execute the repairs.

**Insitu Grinding & Polishing Of Peroni Pompe Italy**

The author is Mr. Raj Shahani, Managing Director of the company. He has 43 years of experience in grinding crankshafts, polishing crankshafts, and all services related to engine and supporting equipment repair. He has designed and developed a portable crankshaft grinding machine to save time and money.

For more details, please email us at rajshahani@rapowersolutions.com, or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

RA Power Solutions has recently undertaken onsite repair of the crankshaft of Peroni pump manufactured and supplied by Peroni Pompe Italy. The crankshaft has three number of crankpin with a standard diameter of 215 mm, developed taper/ovality, and a rough surface. This problem caused frequent damage to the crankpin bearings, leading to major shutdown of the plant … Continue reading “Peroni Pompe Crankshaft Repair | Save Crankshaft From Rejection”

Babbitt Bearings | Cylinder Liner Exporter

RA Power Solutions having 41 years 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 babbitting of old bearings.

The shafts on which we regularly work are as follows:

Crankpin and main journal of the crankshaft of main engine, auxiliary engine, compressor, etc.
Electrical Motor shafts diameter ranging from 35 mm onwards.
Turbine shaft, Rotor shaft, and Alternator shaft used in the Power sector.
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 latest manufacturing process gist of which is given below:

Manufacturing steps for Babbitt Bearings:

Selection of outer casing of bearing is done keeping in view 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.
After machining the bearing steel shell is subject to grit blasting.
The bearing shell at this stage is subject to NDT which includes crack detection, hardness test, ultrasound.
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 an 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 makes & models of the main engine, auxiliary engine, compressor.

The Cylinder Liners up to 1500 mm in length are manufactured by a 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, compressors, rotating equipment manufacturing which is discontinued. We develop and manufacture cylinder liners as per the drawing or sample provided by our client.

For the 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.

**Cylinder Liners & Cylinder Sleeves for CKD Skoda Engine**

This blog is written by Mr. Raj Shahani (Managing Director of RA Power Solutions India Pvt. Ltd.).

Mr. Shahani is a highly experienced business leader with rich experience of more than 40 years in the field of Power, Heavy, and Shipping industries. He is a Technical Adviser to many shipping and heavy industries across the globe.

Mr. Shahani is one of the most enthusiastic professional, and he has all the brilliance of an exemplary leader. Mr. Shahani is an extremely effective coach and mentor of teams and is adept at providing leadership in a global, cross-cultural environment.

For more information on bearing manufacturing company, cylinder liners exporter, white metal bearing alloy ingot, and for your requirements of cylinder liners contact us at rajshahani@rapowersolutions.com or info@rapowersolutions.com or call us at +91 9582647131 or +91 9810012383.

Babbitt Bearings play a very important role in the operation of heavy industrial machinery, Diesel engine, Turbine, alternators, etc. It is important that the quality of Babbitt Bearing used is proven and meets all international standards and technical specifications. RA Power Solutions having 41 years of experience in undertaking onsite repair of shafts understand the … Continue reading “Babbitt Bearings | Cylinder Liner Exporter”

Renewal of Crankshaft | Crankshaft Replacement of Engine – RA Power Solutions

Crankshaft Renewal by RA Power Solutions

Serious breakdown of Wartsila 12V32 diesel generating set installed in one of our client’s power plants in Madagascar was reported. RA Power Solutions deputed 2 senior engineers immediately to the site.

**Wartsila Diesel Generating Sets Installed in Plant**

On inspection, the following were the main observations of the Wartsila 12V32 diesel-generating sets:

The bearing of CR pin no. 2 got seized due to the lack of lubrication.
The removal of bearing from the crankpin was a tough task as the bearing material got embedded in the CR pin.
After removal of bearing, the crankpin was subject to crack detection test by MPI. Multiple cracks with open mouth were observed even in the critical area of the crankpin like lubricating oil hole, and radius fillet.
On spot grinding on cracks was done. Even after stock removal of 4 mm in terms of depth, cracks were observed. Hence, the crankshaft was rejected.

Replacement of Crankshaft

The old and rejected crankshaft was removed.
All the main journal housings, connecting rods, and cylinder liners were calibrated.
Reconditioned standard-size crankshaft was supplied by RA power and floated in the crankcase, and the engine was rebuilt.

**Removal of Crankshaft by RA Power Solutions**

After inspecting all the major parameters as per the manufacturer’s guidelines, engine was load tested to the entire satisfaction of the customer. RA Power Solutions undertakes onsite crankshaft repair of major components, overhaul, and maintenance of high-capacity diesel engines installed in power plants or on the vessel.

**Reconditioned Standard Size Crankshaft Installed**

**Inspection & Calibration of Engine Components**

For more information on crankshaft replacement of engine, crankshaft inspection, and crankshaft renewal email us at rajshahani@rapowersolutions.com or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

Crankshaft Renewal by RA Power Solutions Serious breakdown of Wartsila 12V32 diesel generating set installed in one of our client’s power plants in Madagascar was reported. RA Power Solutions deputed 2 senior engineers immediately to the site. On inspection, the following were the main observations of the Wartsila 12V32 diesel-generating sets: The bearing of CR … Continue reading “Renewal of Crankshaft | Crankshaft Replacement of Engine – RA Power Solutions”

In Situ Crankshaft Machining | Insitu Crankpin Grinding | Onsite Machining of Crankshaft

It is generally observed that whenever there is a failure of bearing, it causes serious damage to the crankshaft. The crankpin and main journal develop excessive ovality, deep bearing line marks are observed and in some cases, the impact of failure is so high that it leads to depression/cuts on the crankpin. In this situation, crankshaft needs grinding and polishing.

In Situ Crankpin Machining | Onsite Crankshaft Grinding & Polishing Offered by RA Power Solutions:

In case of failure of the crankshaft, RA Power Solutions undertakes in situ crankshaft grinding and polishing. We have a team of experienced technicians and our response time to an emergency breakdown situation is minimum. All our technicians hold valid Indian CDC and can fly to any destination worldwide in the minimum possible time. Technicians can also sail on the vessel and can undertake the repairs.

The crankshaft is repaired with minimum downtime, as there is no requirement of removal of crankshaft from the engine block. We have in situ crankshaft grinding machine available in the range of 35 mm to 700 mm to cater to the emergency breakdown.

**Inspection of Crankpin on Board a Vessel**

**Onsite Inspection of Crankpin Before Polishing & Grinding**

In Situ Crankshaft Grinding & Polishing | Four-Decade of Experience

It is important that after damage and failure of crankshaft, it is thoroughly inspected by an experienced technician, and all the major parameters are recorded. The planning for the repair is done, and the crankshaft is repaired successfully. We possess the latest and calibrated instrumentation to conduct the pre and final inspection of the crankshaft. The crankshaft grinding equipment used for in situ grinding and polishing is of the latest design with minimum vibration. This facilitates us to maintain generally the tolerance after grinding within 10 to 20 microns and a surface finish of less than 0.2 micrometers in terms of RA value. These tolerances are far better than the tolerances specified by the manufacturer.

**In Situ Crankshaft Grinding & Polishing by Crankshaft Grinding Machine**

In Situ Repair of Crankshaft | Reduce Maintenance Cost

The industries and the shipping companies are well aware of exorbitant rates charged by the few selected companies based in Europe for in situ repair of crankshaft. RA Power Solutions have changed this trend worldwide. Our charges are the most reasonable and lowest in the world with international standards. Our in situ crankshaft repair is cost-effective with minimum downtime and avoids costly replacement.

**Crankshaft Grinding by Experienced Technician**

**Crankshaft Grinding Service on Moving Vessel**

Benefits of In Situ Crankshaft Repair by RA Power Solutions

We have in house team of trained and experienced technicians who can be deputed at your site with in situ crankshaft grinding and polishing machine in minimum time.
We extend 24*7 services worldwide with a guarantee.
More than forty years of experience in crankshaft repair has proven us to be leaders in this field.
Excellent analytical ability because of experience and the use of modern instruments can save your crankshaft from rejection.

We recommend inspection by our technician prior to planning any repair procedure. Most reliable company working for leading industries and shipping companies. References can be provided on request.

For any information on onsite machining, insitu crankpin grinding, on site machining services and onsite machining of crankshaft please email us at rajshahani@rapowersolutions.com or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

**Portable Insitu Crankshaft Grinding Machine**

**Crankpin After Grinding by RA Power Solutions**

It is generally observed that whenever there is a failure of bearing, it causes serious damage to the crankshaft. The crankpin and main journal develop excessive ovality, deep bearing line marks are observed and in some cases, the impact of failure is so high that it leads to depression/cuts on the crankpin. In this situation, … Continue reading “In Situ Crankshaft Machining | Insitu Crankpin Grinding | Onsite Machining of Crankshaft”

Cast Iron Crack Repair | Metal Stitching Crack Repair | Repairing Crack Cast Iron by Metal Stitching & Metal Lock – RA Power Solutions

Metal stitching and metal lock process of repairing a crack casting or complete damage of cast iron parts of large equipments is considered to be the ultimate solution of successful repair. The repair of cracks and repair of damaged casting by metal locking or metal stitching process is simple and most effective method of repairing cracks in cast iron and aluminium components. The process is entirely a cold process and no heat is generated like in process of crack repair or damage casting repair by conventional and old method of welding.

**Detection of Crack in Cast Iron or Aluminium Components**

RA Power Solutions having experience of more than forty years in providing cold metal stitching cast iron, onsite repair, and metal locking services for high-capacity main engine, auxiliary engine, and large and heavy rotary equipment installed on vessel or in industry. We extend crack repair services through our experienced and factory-trained technicians.

The following are the main features of crack repair undertaken by RA Power Solutions:

Detection of crack in cast iron or aluminium components: It is important that proper procedure is followed by experienced technicians to detect the exact location, length, and intensity of the crack. We have experience that in most of cases, no procedure is followed to identify the intensity of the crack which results to the failure of the component even after the repair by metal lock and metal stitching.

RA Power Solutions possess latest equipment to undertake MPI (Magnetic Particle Inspection) by qualified level 2 technicians, and we give great importance to the detection process of the cracks. The unattended cracks can grow and result to the failure of the component.
Once the number of cracks, length of crack, intensity, and depth of crack is determined and identified the repairs are undertaken by the metal stitching and metal lock process.

Some of the advantages of repairing cracks by metal stitching metal lock are mentioned below:

It is our experience that the majority of repairs of damaged components or cracks can be repaired on site with no requirement of dismantling the equipment. This reduces the downtime and of course the cost involved in dismantling and transportation of the equipment.
Repair of cracks and repair of damaged gray iron casting or aluminium by metal stitching and metal lock process does not generate any heat. Thus, it does not require any machining process. No alignment or profile is damaged.

**Metal Stitching of Piston Under Process**

Metal Stitching Metal Lock of Cracked Piston on Board a Vessel — **Metal Stitching Metal Lock of Cracked Piston on Board a Vesse**l

In the case of diesel engines, compressors, or rotatory equipment majority of the parts are of aluminum or cast iron. It is possible to repair them by metal stitching metal lock process. Hence, no need of replacement of parts. It reduces cost of maintenance considerably.
Repair of crack by metal stitching metal lock process absorbs compression stresses which is of great advantage.

**Metal Stitching Metal Lock for Repairing Cracks**

**Special Keys & Locks Used in Metal Stitching Metal Lock Process**

RA Power Solutions have been extending metal stitching, metal lock, and metal surgery services all over the world. The technicians with years of experience come to your site or on board the vessel for repairs. Our technicians possess Indian CDC and can board the vessel and sail in shortest possible time. Thousands of jobs of serious damage have been repaired successfully by RA Power Solutions.

For more information about cold metal stitching, metal stitching crack repair, cast iron metal stitching, repair of crack in cast iron casting, repairing cast iron metal lock, and metal locking services, please email us at rajshahani@rapowersolutions.com or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

Metal stitching and metal lock process of repairing a crack casting or complete damage of cast iron parts of large equipments is considered to be the ultimate solution of successful repair. The repair of cracks and repair of damaged casting by metal locking or metal stitching process is simple and most effective method of repairing … Continue reading “Cast Iron Crack Repair | Metal Stitching Crack Repair | Repairing Crack Cast Iron by Metal Stitching & Metal Lock – RA Power Solutions”

In-Situ Crankshaft Grinding Machine | Onsite Crankshaft Machining | Onsite Crankshaft Grinding & Polishing Machine – RA Power Solutions

Crankshaft is a mechanical and important part of the engine that facilitates the performance of a conversion between reciprocating motion and rotational motion. The tolerances of the crankpin and main journal of the crankshaft are generally very close in order to have a longer life and continuous satisfactory performance of the Crankshaft without any damage. It is important that crankshaft tolerances are always maintained strictly as per original tolerances.

RA Power Solutions designs and manufactures insitu crankshaft grinding and polishing machine. The insitu crankshaft machine is of advanced technology which is designed to maintain the crank pin and main journal tolerances in terms of taper, ovality, and surface finish strictly as per the manufacturer’s specifications. There is no need of disassembly /removal of the crankshaft from the entablature. The onsite crankshaft grinding and polishing machine manufactured by RA Power Solutions is available in the range of 35 mm to 700 mm in terms of diameter.

**Onsite Crankshaft Grinding Machine Ready for Dispatch**

**Accessories of Grinding Machine Packed in Steel Box**

The onsite crankshaft grinding machine is light in weight and can be easily taken to far from places all over the world. The onsite crankshaft grinding and polishing machine has the following features:

Technologically advanced crankshaft machining equipment in comparison to the conventional and old cage-type design, which is outdated.
Onsite crankshaft grinding and polishing machine does not require any reference of radius fillet for machining of the crankpin/main journal of the crankshaft.

**Packing of Crankshaft Grinding Machine is in Process**

Onsite crankshaft grinding and polishing machine frame is made out of titanium steel, which is robust and vibrationless.
With our latest onsite crankshaft grinder, machining of crankshaft up to 700 mm diameter can even be done while sailing the vessel, maintaining the close tolerance.
Onsite crankshaft grinding machine capable of maintaining close tolerance within 0.02 mm and with high surface finish far better than the international standards.
The insitu crankshaft grinding machine manufactured by RA Power Solutions can also be used for cylindrical shaft grinding and polishing and for the repair of the alternator, rotor shaft, pump shaft, intermediate shaft, mid-shaft, and turbine shaft.
Insitu crankshaft grinding and polishing equipment is easy to operate and maintain. It does not require any complicated day-to-day maintenance.
We are giving free training to the client’s technicians for the operation of this latest onsite crankshaft grinding equipment.

**Accessories Used in Crankshaft Grinding Machine**

The cost of insitu crankshaft machining equipment is low and affordable. Highly recommended for large diesel power plants, shipping companies, and engine repair workshops. Insitu crankshaft grinding equipment is supplied in sturdy steel boxes that can be easily stored and taken from one site to another.

**Training on Operation of Crankshaft Grinding Machine**

We have sold more than 70 crankshaft grinding machines all over the world including South America, UK, Italy, Nigeria, Singapore, the Philippines, Iran, Dubai, and various countries.

The author of this blog is Mr. Raj Shahani (Managing Director of Company). He has four decades of experience in the field of high-capacity engine repair and grinding of shaft. He has developed an onsite crankshaft grinding machine to make the grinding process easy and less time-consuming. With the development of grinding equipment, now companies can undertake grinding and repair of any rotary shaft themselves saving a huge amount of money and time.

For information regarding onsite crankshaft grinding & polishing machine, on site machining services, onsite crankshaft machining, contact us at rajshahani@rapowersolutions.com or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

**Onsite Grinding of Crankpin by Crankshaft Grinding Machine**

Crankshaft is a mechanical and important part of the engine that facilitates the performance of a conversion between reciprocating motion and rotational motion. The tolerances of the crankpin and main journal of the crankshaft are generally very close in order to have a longer life and continuous satisfactory performance of the Crankshaft without any damage. … Continue reading “In-Situ Crankshaft Grinding Machine | Onsite Crankshaft Machining | Onsite Crankshaft Grinding & Polishing Machine – RA Power Solutions”

Main Engine Maintenance | Overhauling of Marine Engine and Diesel Engine

The main engine and auxiliary engine maintenance, overhauling, and repair is undertaken by RA Power Solutions for the last forty years for the engine installed on vessels, diesel engine driven power plants, and heavy industries.

It is important that periodic maintenance and overhaul schedule of the diesel engine is followed in order to avoid any major breakdown. RA Power Solutions has a team of experienced engineers who can be deputed to any site of powerplant or the vessel on short notice to undertake the overhauling and repair of engine.

**Overhauling & Repair of Marine Engine**

We undertake the following jobs:

Periodic maintenance and overhauling of engines, including alternator and electric panels.
Shifting of diesel generating set from one site to another site is done on a turnkey basis.
Inspection of engine block, crankshaft, cylinder liners, pistons, connecting rod, and cylinder head wherever required.
We also undertake onsite repair of major components, which is of great advantage to our clients.
Replacement of crankshaft requires special skills, calibration, and following of instructions specified by the engine manufacturer.
We specialize in the replacement of crankshaft due to accident or wear and tear.

We are trusted by the shipping companies and the industry based all over the world and have been regularly serving our clients based in Nigeria, Qatar Dubai, Singapore South America, and many other countries.

Marine Engine Spares

While undertaking the engine maintenance and overhauling, we have observed that in some cases the engine spare parts are not available. This is most common for the engines which have been discontinued by the manufacturer or the manufacturers have stopped manufacturing of diesel engines in totality.

RA Power Solutions Pvt. Ltd. plays a very important role in this area as parts for popular makes of diesel engine and models are available in stock. We have developed various spares like cylinder liners, bearings, etc which are regularly exported all over the world. The marine engine spares are also sourced by RA Power Solutions from the world’s largest ship breaking yard based in western India. Ours is the only company that has in-house facilities for undertaking reconditioning of old marine engine parts supported with experienced technicians.

In general, the cost of marine engine spare parts offered by us are priced substantially lower than the prices offered by the engine manufacturer. All the spares supplied are supported with a performance guarantee and with the calibration reports in detail.

The author is Mr. Raj Shahani, Managing Director of the company. He is having forty years of experience in providing services like onsite diesel engine repair, marine diesel engine maintenance, main engine maintenance, overhauling of marine engine, and repair of marine engine, overhauling and repair of diesel engine, and many other services related to high-capacity engine.

We provide top overhauling of diesel engine, marine engine cylinder liners, engine overhauling, maintenance and repair services, overhauling of diesel engine, engine overhaul services and crankshaft repair services. For any information on our services, please email us at rajshahani@rapowersolutions.com or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

The main engine and auxiliary engine maintenance, overhauling, and repair is undertaken by RA Power Solutions for the last forty years for the engine installed on vessels, diesel engine driven power plants, and heavy industries. It is important that periodic maintenance and overhaul schedule of the diesel engine is followed in order to avoid any … Continue reading “Main Engine Maintenance | Overhauling of Marine Engine and Diesel Engine”

In Situ Crankshaft Grinding Machine | Onsite Crankshaft Grinding & Polishing Machine | Crankshaft Grinder – RA Power Solutions

The in situ crankshaft grinding and crankshaft repair machine is a unique invention and is of great assistance to the shipping companies as they can not remove the crankshaft from the vessel and send it to the workshop for repair. Again, the crankshaft grinding machines installed in the workshop are not an ideal solution due to its high cost and lack of know-how to operate. RA Power Solutions manufactures and exports onsite crankshaft grinding and repair machines having a range of 35 mm to 700 mm in terms of the diameter of crankpin and main journal of the crankshaft.

Crankshaft Grinding Machine of Bigger Diameter

Crankshaft Grinding Machine has the following features:

Onsite crankshaft grinding and polishing machine is compact, lightweight, and can be inserted from the inspection window of the engine block.
It is simple in design, easy to operate, and maintain
Crankshaft grinding and polishing machine body is manufactured out of titanium steel having the property of absorbing the vibrations. With the vibration or almost zero vibration machine can also be used for crankshaft grinding and crankshaft repair while sailing of the vessel.
- All parameters and tolerances as recommended by the engine manufacturer can be strictly maintained.
With the use of onsite crankshaft grinding and polishing machine, repair can be done in one setting. Thus saving the time.
This crankshaft grinding and polishing machine is manufactured with a pneumatic or electrical drive depending on the client’s requirement.
On Job training for the operation and maintenance of the crankshaft grinding machine is extended through our experienced technicians.
Crankshaft repair machine is supplied in a toolbox and can be transported all over the world.

**Onsite Crankshaft Grinding & Repair Machine**

We have sold more than 70 crankshaft grinding machines all over the world that includes shipping companies, leading repair workshops and power plants, etc.

The author of the blog is Mr. Raj Shahani, Managing Director of the company. He is having 40 years of experience in solving the major issues related to repair and overhauling of engines, grinding and repair of the crankshaft, and many more related to the high capacity engine.

For more information regarding onsite machining of crankshaft, in situ crankshaft grinding repair, crankshaft grinding machines, onsite crankshaft grinding, and crankshaft polishing equipment, please email us at rajshahani@rapowersolutions.com or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

**Repair of Crankpin by Crankshaft Grinding Machine**

**Onsite Grinding Machine for Small Diameter**

RA Power Solutions manufactures in situ crankshaft grinding and polishing machine. It is a revolutionary, lightweight, easy-to-operate, and compact crankshaft grinding and crankshaft polishing machine which can undertake the repair of crankpins up to the diameter of 700 mm without removing the crankshaft from the engine block. The in situ crankshaft grinding and crankshaft repair … Continue reading “In Situ Crankshaft Grinding Machine | Onsite Crankshaft Grinding & Polishing Machine | Crankshaft Grinder – RA Power Solutions”

Second-Hand Connecting Rods | Repair of Connecting Rods | Reconditioning of Connecting Rods – RA Power Solutions

Connecting rods of high capacity, main and auxiliary engines are repaired by RA Power Solutions. Connecting rods during the operation of the engine are heavily stressed, transmitting power generated in the combustion chamber to the crankshaft. It is important that periodically or at the time of general overhauling, the condition of the connecting rod is checked, and either it is replaced or connecting rod is reconditioned.

**Inspection of Crankshaft is in Process**

RA Power Solutions has four decades of experience in reconditioning of connecting rods up to the bore size of 500 mm.

Following process is adopted for successful reconditioning of connecting rods:

Connecting rod is subject to chemical cleaning and shot blasting after dismantling.
The big end and small end bore of connecting rod are checked and recorded
Connecting rod is checked for cracks and overheating by MPI or Dye penetrant test.
The serration of the joining face connecting rod bolts are also subject to crack detection.
Center to center distance of big end bore and small end bore is also checked.
Straightness of connecting rod is also checked.

**Inspection after Reconditioning of Connecting Rods**

The connecting rod’s big end and small end are re-machined/bored on the latest design of the boring machine equipped with DRDO. All the connecting rods repaired by us are guaranteed for satisfactory performance and are 100% check for quality.

Second hand connecting rods of CAT 3616 engine — **Second-hand connecting rods of CAT 3616 engine**

Second hand connecting rods of MAK engine in stock — **Second-hand connecting rods of MAK engine in stock**

We also maintain a large stock of repaired connecting rods which are reconditioned strictly as per the manufacturer’s specifications and tolerance. Generally, the cost of a reconditioned connecting rod is ¼ of the connecting rods sold by engine manufacturers.
We maintain the stock of connecting rod for the following engines:

Wartsila, Daihatsu, MWM, Caterpillar, Man, Mak, B&W, Sulzer, Bergen, Detroit Diesel, Stork Werkspoor, Pielstick, Deutz, Yanmar, MTU, Cummins, Nohab Polar, Caterpillar, Mitsubishi, Yanmar, Mak 551, Mak 552, Mak 453, Mak 451 AK , Mak 452 AK, Deutz 540 , Deutz 358 , Deutz 350, Pielstick PC 2.2 PC 2.5, Wartsila 524, Wartsila 824 TS, Sulzer 6 AL 25/30, Sulzer 5 AL 25/30 MWM TBD 484, MaN 40/54 , Man Sulzer 12 ASV 25/30, Sulzer 16 ZV 40/48, Deutz BV 16M 540, B&W 6L 45 GFCA, MAN B&W 55/GF, CAT D353, B&W 5T23LH, Daihatsu 6 PST 26D, Daihatsu 6 PSHTb 26M, Mak 6MU 451 AK, Deutz 6M 628, Caterpillar 3512, Deutz BV 12M 628, MWM TBD 234, WICHMANN 5AX, SKL 8NVD 48A-2U, Pielstick PC 2.2 LNR, Caterpillar 3508 and more.

Second hand connecting rods of Wartsila Engine — **Second-hand connecting rods of Wartsila Engine**

The author of the blog is Mr. Raj Shahani, Managing Director of the company. He is having 40 years of experience in providing new and reconditioned marine engine spares like connecting rod, cylinder liners, cylinder head, crankshaft, heat exchangers, gaskets, camshaft, white metal bearings, and many more.

For more information regarding engine connecting rods, bearings for Daihatsu engine, bearings for Yanmar engine, and new and reconditioned engine spares with the guarantee, please email us at rajshahani@rapowersolutions.com or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

Connecting rods of high capacity, main and auxiliary engines are repaired by RA Power Solutions. Connecting rods during the operation of the engine are heavily stressed, transmitting power generated in the combustion chamber to the crankshaft. It is important that periodically or at the time of general overhauling, the condition of the connecting rod is … Continue reading “Second-Hand Connecting Rods | Repair of Connecting Rods | Reconditioning of Connecting Rods – RA Power Solutions”

Crankshaft Grinding | Crankshaft Repair | Crankpin Grinding – RA Power Solutions

RA Power Solutions having experience of more than four decades has emerged as a leader in providing services for onsite crankshaft grinding, crankshaft repair, crankshaft polishing, and crankpin reconditioning in Asia, the Middle East, South America, Parts of Europe, and many countries all over the world. The technology and process used for crankshaft repair are of the latest design, which ensures that the quality after the crankshaft grinding and repair is maintained strictly as per the engine manufacturer’s specifications and tolerances.

**Repair of Crankpin by Portable Crankshaft Grinding Machine on Vessel**

The combination of the latest design of onsite crankshaft grinding machine possessed by RA Power Solutions and experienced technicians who have collectively repaired more than 10,000 crankshafts gives confidence to our clients for successful repairs of crankshaft once the job is entrusted to RA Power Solutions.

Following are the main abnormalities observed in the crankshaft which require crankshaft repair:

Bearing line marks and development of rough surface.
Damage of radius fillet, lubricating oil hole due to an accident.
Development of taper and ovality beyond the limits specified by the engine manufacturers.
Increase in hardness beyond the permissible limit due to overheating.
Cracks were observed on crank pins and the main journal.
Presence of watermarks and rough surface.

Crankshaft Grinding and Repair process followed by RA Power Solutions:

Dimensional inspection of the crankshaft in detail is undertaken by RA Power technicians
A hardness check of the damaged CR Pin or main journal of the Crankshaft is conducted.
Crack detection by MPI, dye penetrant, or ultrasonic crack detection is done.
Visual inspection

**Inspection of Crankpin Under Process**

**Inspection of Crankpin Before Grinding**

The inspection report in detail is studied by our senior technicians and the necessary planning for onsite repair is done. The onsite crankshaft grinding and polishing is undertaken by RA Power in the shortest possible time.

We also possess portable onsite crankshaft grinding machines which have minimum vibrations. This facilitates us to undertake crankshaft grinding and repair even while the vessel is sailing on the high seas.

**Grinding & Polishing of Crankshaft by RA Power Solutions**

After crankshaft grinding and repair, the final inspection reports are prepared by our technicians and submitted to clients for their records. RA Power also extends services for repair crankshaft, crankshaft refurbishment, engine overhaul and maintenance, metal stitching, rebabbitting of bearings, spares, etc.

**Crankpin After Grinding on Board a Vessel**

The author is Mr. Raj Shahani Managing Director of RA Power Solutions having experience of almost four decades of working on high-capacity diesel engines, crankshaft, turbines, and rotary equipment.

For more information regarding crankshaft polishing, grinding of crankshaft, onsite inspection of crankshaft, crankshaft grinding and repair, onsite crankshaft grinding and polishing services, and crankpin grinding, please email us at rajshahani@rapowersolutions.com or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

RA Power Solutions having experience of more than four decades has emerged as a leader in providing services for onsite crankshaft grinding, crankshaft repair, crankshaft polishing, and crankpin reconditioning in Asia, the Middle East, South America, Parts of Europe, and many countries all over the world. The technology and process used for crankshaft repair are … Continue reading “Crankshaft Grinding | Crankshaft Repair | Crankpin Grinding – RA Power Solutions”