Cylinder Liners/Cylinder Sleeves of Diesel and Marine Engine

In case of diesel engines, cylinder liners as the name describes forms the cylindrical space in which the piston reciprocates.

The cylinder liners/cylinder sleeves used in high capacity diesel engines, marine engine and other applications have far superior material in comparison to cylindrical block of the diesel engine.

Mirrlees Blackstone Engine Cylinder Liners/Cylinder Sleeves
Mirrlees Blackstone Engine Cylinder Liners/Cylinder Sleeves

RA Power Solutions understands the importance of cylinder liner application and manufactures the cylinder liners having following features:

I) The cylinder liners manufactured are of alloyed cast iron with composition of chromium, vanadium and molybdenum. The percentage varies according to the application of the cylinder liner.

II) Cylinder liner of cast iron manufactured by RA Power Solutions contains graphite which is considered to have good lubricant properties.

III) The alloying elements used at the time of casting of cylinder liner resist corrosion and improves the wear resistance at high temperatures.

IV) The cylinder liners are cast by centrifugal system which ensures dense and blow hole free casting.

V) The cylinder liner manufactured by RA Power Solutions are high wear resistance having good thermal conductivity and internal damping properties.

VI) The cost of the cylinder liners is considerably low in comparison to the cylinder liners supplied by the manufacturers of the engines. All cylinder liners stand guarantee for the satisfactory performance.

Second Hand Cylinder Liner
Second Hand Cylinder Liner

 RA Power Solutions manufactures and exports following cylinder liners.We can develop new range of cylinder liners as per the sample and drawing.

We manufacture and export cylinder liners for following engine make:

CKD Skoda (All models of Engine), Ruston, Allen, B&W, DAIHATSU, MAN, Mirrlees Blackstone, Niigata, Caterpillar, Deutz, Wartsila, Sulzer, Yanmar, Bergen, Mitsubishi and Cummins etc.

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

Reconditioned Cylinder Liners Ready for Dispatch
Reconditioned Cylinder Liners Ready for Dispatch

In case of diesel engines, cylinder liners as the name describes forms the cylindrical space in which the piston reciprocates. The cylinder liners/cylinder sleeves used in high capacity diesel engines, marine engine and other applications have far superior material in comparison to cylindrical block of the diesel engine. RA Power Solutions understands the importance of … Continue reading “Cylinder Liners/Cylinder Sleeves of Diesel and Marine Engine”

Grinding of Crankshaft in Oman by RA Power Solutions

A vessel sailing near Oman  reported serious breakdown of auxiliary engine of Yanmar model 6N18AL. RA Power Solutions team which is always ready for emergency response left for Oman and conducted the detailed inspection of the engine. It was observed that crankpin no. 4 bearing seized resulting to the damage of CR pin no. 4. All other crankpins also developed ovality to the extent of maximum 0.20 mm.

Damaged Crankpin of Yanmar Engine
Damaged Crankpin of Yanmar Engine
Crack Detection Test of Crankpin
Crack Detection Test of Crankpin

After checking the hardness, crack and other parameters of the crankpins the grinding was started. The ship was to sail to the next port and it was decided that grinding of crankshaft is to be executed by RA Power Solutions technicians while the sailing of the vessel. RA Power Solutions having portable latest design of crankshaft grinding machine with almost no vibrations started the grinding of crankshaft while the sailing of the vessel. The 6 crankpins grinding to 0.40 mm undersized was completed in a short time of 60 hours. The repair of crankshaft was successful as the engine was put back in to operation and is performing satisfactory.

Onsite Crankpin Grinding is in Process
Onsite Crankpin Grinding is in Process

RA Power Solutions having 40 years of experience in field of crankshaft grinding has achieved many land marks and have performed more than satisfactory for the clients spread all over the world. The expert team of crankshaft grinding technicians can undertake the grinding of crankshafts up to 700 mm.

Crankpin Grinding by Onsite Crankshaft Grinding Machine
Crankpin Grinding by Onsite Crankshaft Grinding Machine

All the parameters like taper, ovality, surface finish etc. after crankshaft grinding are maintained strictly as per the manufacturer’s specifications. RA Power Solutions undertakes all the jobs related to repair, maintenance, overhauling of high capacity of diesel engines and diesel generating sets onsite all over the world.

 Only company which has undertaken repair of more than 11,000 crankshafts and is highly respected for its commitment

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

Onsite Crankpin Grinding is in Process
Onsite Crankpin Repair is in Process
Inspection and Grinding of Crankshaft is in Process
Inspection and Grinding of Crankshaft is in Process

A vessel sailing near Oman  reported serious breakdown of auxiliary engine of Yanmar model 6N18AL. RA Power Solutions team which is always ready for emergency response left for Oman and conducted the detailed inspection of the engine. It was observed that crankpin no. 4 bearing seized resulting to the damage of CR pin no. 4. … Continue reading “Grinding of Crankshaft in Oman by RA Power Solutions”

Reconditioned Connecting Rods and Repair

RA Power Solutions is a leader in undertaking repair and reconditioning of the  connecting rods of high capacity engines installed in diesel engine power plants, ships and for other applications.

Reconditioning of connecting rod and repair methodology have been developed by using latest breed of equipment and our experience of four decades in this field.

Marine Engine Connecting Rods under Reconditioning
Marine Engine Connecting Rods under Reconditioning

We strongly recommend our customers to go for reconditioned connecting rods which are thoroughly checked in our workshop and repair maintaining the tolerances as original.

The reconditioned connecting rods for most of the popular diesel engines are available in stock or can be supplied in a short duration. Details of few engines for which reconditioned connecting rods are readly available is mentioned below.

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

Second Hand Connecting Rod of Wartsila Engine
Second Hand Connecting Rod of Wartsila Engine
Second Hand Connecting Rod of CAT Engine
Second Hand Connecting Rod of CAT Engine

The   availability of reconditioned connecting rod gives ship operators and diesel power plant owners  access to low cost. Reconditioned connecting rods which are equivalent to new one in terms of tolerances, performance and life cycle.

RA Power Solutions as an experienced and most respected company in the field of diesel engines strongly recommends use of reconditioned connecting rods quality of which is guaranteed by our controlled, approved process of repair and technology and through the metallurgical examination during and after reconditioning.

Generally prices of reconditioned connecting rods is 1/4th of the new connecting rod resulting to the enormous saving to the owners.

For more information regarding new connecting rods and reconditioned connecting rods of all make and model of diesel engine, please free to write us on info@rapowersolutions.com

Connecting Rod of MAK Diesel Engine
Connecting Rod of MAK Diesel Engine
Inspection of Wartsila Engine Connecting Rod
Inspection of Wartsila Engine Connecting Rod

RA Power Solutions is a leader in undertaking repair and reconditioning of the  connecting rods of high capacity engines installed in diesel engine power plants, ships and for other applications. Reconditioning of connecting rod and repair methodology have been developed by using latest breed of equipment and our experience of four decades in this field. … Continue reading “Reconditioned Connecting Rods and Repair”

Onsite Crankshaft Grinding Machine for Crankshaft Repair

RA Power Solutions  with 4 decades of experience have now introduced onsite crankshaft grinding machine which is portable and can undertake crankshaft machining, crankshaft grinding, crankshaft repair onsite.

Now there is no need to remove the crankshaft from engine block and sending it to the workshop. Crankshaft grinding machine has following features:

I) The crankshaft grinding machine is introduced by RA Power Solutions having experience of 4 decades in crankshaft repair

II) After extensive trials and experience, the machine is now introduced in the open market for the benefit of shipping companies, engine repair workshops, power plants, etc.

III) The onsite crankshaft grinding and polishing machine is of latest design having minimum vibrations during operation. Onsite crankshaft grinding machine can be used while sailing of the vessel.

Grinding of Crankpin using Onsite Crankshaft Grinding Machine
Grinding of Crankpin using Onsite Crankshaft Grinding Machine

IV) Tolerances achieved after crankshaft grinding and crankshaft polishing are far better than the manufacturer’s specifications. This is proven as repairs executed are class approved.

In case of emergency, this onsite crankshaft grinding and polishing can be operated round the clock. Onsite crankshaft grinding and polishing machine is easy to operate and on job training is provided.

This machine is supplied ready to use and complete in all respect. More than 70 machines supplied all over the world.

For more information, please drop en email at info@rapowersolutions.com

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

RA Power Solutions  with 4 decades of experience have now introduced onsite crankshaft grinding machine which is portable and can undertake crankshaft machining, crankshaft grinding, crankshaft repair onsite. Now there is no need to remove the crankshaft from engine block and sending it to the workshop. Crankshaft grinding machine has following features: I) The crankshaft grinding … Continue reading “Onsite Crankshaft Grinding Machine for Crankshaft Repair”

Repair of Connecting Rod for High Capacity Engine

Connecting rod of high capacity marine engine requires periodic calibration.
Marine and power industry has experienced serious accidents due to failure of connecting rods. Some of the accidents due to failure of the connecting rods have even resulted to the complete damage of the engine.

RA Power Solutions undertakes reconditioning and repair of connecting rods mainly of high capacity engines for last 4 decades of Wartsila, Caterpillar Engine, MAK, MAN, Mitsubishi, Yanmar, Pielstick, Deutz, etc.

Reconditioning of Connecting Rod is in Process
Reconditioning of Connecting Rod is in Process

We are following procedure for repair of connecting rods:

A. Connecting rods are thoroughly cleaned by special chemicals to remove oil and dirt.

B. Connecting rod is checked visually for any signs of overheating which

Calibration of Connecting Rod is in Process
Calibration of Connecting Rod is in Process

may be indicated by a “bluish” appearance. In that case it is recommended to check the hardness and undertake MPI for crack detection on the area which is exposed to the overheating.

C. Magnetic particle test by qualified technician is undertaken under supervision of senior engineer to check the crack on serration, connecting rod bolt and bolt sitting area and complete connecting rod. No crack whatsoever are accepted on connecting rod.

D. Connecting rod bolts are checked for elongation; in case of any deviation bolts are replaced.

E. Connecting rod big end bolt is tightened as per the torque specified by the manufacturer.

F. Big end bore taper and ovality is checked. The bore is also checked visually for any damage.

Repair of Connecting Rod is in Process
Repair of Connecting Rod is in Process

G. The small end bore is also inspected for taper, ovality or any visual damage.

H. Connecting rod is subject to shot blasting.

I. The first step for repair is to lap the serrations to the minimum, in order to bring the bore size to minus with enough allowance for internal grinding. For this special purpose machine is used.

J. The small end bush is replaced with new one in case the taper and ovality is on higher side.

K. Connecting rod is placed on our boring machine equipped with latest generation of DRDO. The straightness of connecting rod is checked.

L. We do not recommend use of any connecting rod which has lost its alignment. No deviation is accepted and it is not recommended to straighten the connecting rod.

M. Boring of big end bore and small end bore is done simultaneously not only to maintain the taper and ovality of big end small bore but to ensure that centre distance of both the bores is maintained.

N. All the sharp edges are removed after boring operation.

O. Connecting rod is again subject to dimensional inspection and all the readings are recorded.

P. While returning the connecting rod, proper packing is ensured.

Reconditioning of Connecting Rod is in Process
Reconditioning of Connecting Rod is in Process

 

Inspection of Connecting Rod is in Process
Inspection of Connecting Rod is in Process

Connecting rod of high capacity marine engine requires periodic calibration. Marine and power industry has experienced serious accidents due to failure of connecting rods. Some of the accidents due to failure of the connecting rods have even resulted to the complete damage of the engine. RA Power Solutions undertakes reconditioning and repair of connecting rods … Continue reading “Repair of Connecting Rod for High Capacity Engine”

Metal locking of Engine Block by Experienced Technicians

An engine block of Wartsila 18V32 was reported damaged by South American power plant due to failure of connecting rod. The engine was just out of warranty and the cost of bare engine block quoted was exorbitant with the delivery time 9 months.

RA Power Solutions technicians have successfully undertaken the repair of damaged engine block of Wartsila 18V32 by metal locking and metal stitching process. The block was repaired while it was on the foundation and without disassembly of crankshaft and major components. The damaged portion was measuring 72 inches X 42 inches approx.

Metal locking and metal stitching is executed by experienced engineers having record of repairing engine block and major engine components exceeding more than 1300 numbers in last 40 years.

 A cost effective, quick in response and sincerity are the main advantages of getting repairs done by RA Power Solutions.

For more details regarding Metal Stitching/Metal Locking in Low Price, email us your query on info@rapowersolutions.com

An engine block of Wartsila 18V32 was reported damaged by South American power plant due to failure of connecting rod. The engine was just out of warranty and the cost of bare engine block quoted was exorbitant with the delivery time 9 months. RA Power Solutions technicians have successfully undertaken the repair of damaged engine … Continue reading “Metal locking of Engine Block by Experienced Technicians”

Cylinder Liners- New and Reconditioned for Diesel Generating Sets

We manufacture cylinder liners for high capacity diesel engines, compressors, rotatory equipments. Cylinder liners are centrifugally cast, machined and honned. Cylinder liners up to 1500 mm length and 600 mm bore size are manufactured.

Cylinder Liners of MAK Diesel Engine
Cylinder Liners of MAK Diesel Engine

Large stock of new cylinder liners of popular make and model of engines is maintained and can be supplied to the end users in a short time. We also develop and manufacture cylinder liners as per the drawing or as per the sample of the cylinder liner provided to us. We have the facility to develop and manufacture  even small quantity of cylinder liners if required.

Each cylinder liners are inspected in-house for dimensional correctness. We also have facility to check the metallurgy of cylinder liner after it is cast. On request, cylinder liner inspection reports are provided to the client.

Reconditioned cylinder liners are available in stock in large numbers. We ensure that the wear and tear of cylinder liner bore and other important dimensions is minimum. The reconditioned cylinder liners supplied by us are as good as new and almost have the same life.We stand guarantee for satisfactory performance of reconditioned cylinder liners.

Cylinder Liners for Wartsila Diesel Engine
Cylinder Liners for Wartsila Diesel Engine

Liners supplied by us and are priced far cheaper than the cylinder liners supplied by the engine manufacturers. The popular make of engines for which cylinder liners are maintained in stock is mentioned below:

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

Cylinder Liners
Cylinder Liners
Reconditioning of Cylinder Liners
Reconditioning of Cylinder Liners

We manufacture cylinder liners for high capacity diesel engines, compressors, rotatory equipments. Cylinder liners are centrifugally cast, machined and honned. Cylinder liners up to 1500 mm length and 600 mm bore size are manufactured. Large stock of new cylinder liners of popular make and model of engines is maintained and can be supplied to the … Continue reading “Cylinder Liners- New and Reconditioned for Diesel Generating Sets”

Crankshaft Grinding Machine

Crankshaft grinding machine which is light weight, portable and is easy to operate is manufactured by RA Power Solutions. Crankshaft grinding machine is revolutionary equipment developed and manufactured by us.

Crankshaft Grinding and Polishing Machine
Crankshaft Grinding and Polishing Machine

Few years back industry  had no option but to remove the crankshaft from the engine block, pack it and transport it to the workshop for repairs which was not only expensive but was time consuming. With the introduction of onsite crankshaft grinding machine the removal of crankshaft and sending it to the designated workshop is outdated and is no more required by the industry.

The crankshaft grinding machine manufactured by RA Power Solutions can undertake grinding and polishing of crankshaft, crank pin and main journal diameter ranging from 60 mm to 700 mm. The latest design of the crankshaft grinding machine can undertake grinding and polishing in one setting. The minimum vibration while in operation of the crankshaft grinding machine results to the maintenance of close tolerances and high surface finish.

Onsite Crankshaft Grinding Machine
Onsite Crankshaft Grinding Machine

RA Power Solutions as on date have sold more than 63 crankshaft grinder to countries like Netherlands, Belgium, Iraq, Saudi Arabia, South America, Jordan, Ecuador, Singapore, Indonesia, Dubai, Brazil, Scotland, Greece, Italy, UK, Nigeria, etc.

Since the machine is priced low, it is highly recommended for the repair workshops, shipping companies, power plants and general industry. The onsite training, operation and maintenance of crankshaft grinding machine is provided by the highly experienced technicians with hand on experience of crankshaft repair of four decades.

Crankshaft Grinding Machine
Crankshaft Grinding Machine
Crankshaft Grinder
Crankshaft Grinder

 

 

 

 

 

For more information, please email us on info@rapowersolutions.com or Call us on +91 – 124 – 437 8292 , +91 9213604692

Crankshaft grinding machine which is light weight, portable and is easy to operate is manufactured by RA Power Solutions. Crankshaft grinding machine is revolutionary equipment developed and manufactured by us. Few years back industry  had no option but to remove the crankshaft from the engine block, pack it and transport it to the workshop for … Continue reading “Crankshaft Grinding Machine”

Cylinder Liners

Cylinder liners up to the length of 1500 mm are manufactured by us. We strictly follow the centrifugal process for casting of cylinder liners. The material composition of cylinder liners is maintained strictly as per the manufacturer’s specifications.

We develop and manufacture cylinder liners either as per the drawing or

Cylinder Liner of WARTSILA 12V46C
Cylinder Liner of WARTSILA 12V46C

as per the sample. The casting of cylinder liners after centrifugal process is checked thoroughly by our technicians for blow holes, porosity and any casting flaw.

The cylinder liner is machined on latest breed of CNC equipments which helps us to maintain the close tolerances. The honing operation of cylinder liners is done in-house maintaining the surface finish angle and profile as per the requirement. We regularly export large quantity of cylinder liners. We are considered to be quality conscious and are competitively priced.

Cylinder Liners for Wartsila Diesel Engine
Cylinder Liners for Wartsila Diesel Engine
Cylinder Liner of Diesel Engine
Cylinder Liner of Diesel Engine

 

 

 

 

 

 

 

We have cylinder liners of following makes in stock:

ABB, ABC, Anglo Belgian Corporation, Akasaka, Alco Diesel Engines, Alfa Laval, Allen, Alpha Diesel, Alstom, B & W, Bergen Diesel Engines, Blackstone, Bosch, Caterpillar, Cegielski,  Consilium, Crepelle, Cummins, Daihatsu, Detroit Diesel, Deutz, DeutzMarine Engine, EMD, Fiat, FUJI, Fuji Diesel, Furuno, Hanshin, Headway, HIMSEN,Holset, Hyundai, JRC, Kawasaki, Kelvin Hughes, Kongsberg Maritime, L’OrangeMaschinenfabrik, MaK, MAN, MAN B&W,  Martek Marine,  Mirrlees Blackstone,  Mitsubishi, Mitsubishi UE/UEC, MTU, MWM, Napier, NAVTEX, Nigata, Nohab Diesel,Paxman, Pielstick, Ruston & Hornsby, Samsung, Simrad, SKL, Sperry, Stork SW Diesel, Stork Werkspoor, STORK-WARTSILA DIESEL, Sulzer, Volvo Penta, Wartsila, Wartsila Diesel, Westfalia,  Wichmann, Woodward, Yanmar, etc

For more information, call us on +91 – 124 – 4378292 , +91 9213604692 or email us on rajshahani@rapowersolutions.cominfo@rapowersolutions.com

Cylinder liners up to the length of 1500 mm are manufactured by us. We strictly follow the centrifugal process for casting of cylinder liners. The material composition of cylinder liners is maintained strictly as per the manufacturer’s specifications. We develop and manufacture cylinder liners either as per the drawing or as per the sample. The … Continue reading “Cylinder Liners”

Metal Stitching and Thread Repair Inserts

RA Power Solutions was informed by one of our client regarding damage of cam case cover of MAN diesel engine on board a vessel sailing near China.

The details including photographs were examined and it was observed while the cam case cover was broken in to pieces the threads on the engine body and the dowel pin were also damaged.

Cracked Housing of Engine Block
Cracked Housing of Engine Block
Broken Area
Broken Area
Damaged Upper Threads
Damaged Upper Threads

 

 

 

 

 

RA Power Solutions deputed their team of technicians on board the vessel and they executed the repair of engine block, cam case cover sitting area by following procedure:

I) The broken bolt which remained  inside the thread hole was drilled out.

II) The damaged threads on cam cover sitting area on entablature was removed by drilling new blind holes, suiting the new M12 Helicoil thread inserts.

III) Re-tap holes for the new M12 Helicoil thread inserts was done carefully.

IV) New M12 Helicoil thread inserts were installed in the engine frame/ entablature.

V) The 2 guide pins for the roller guide housing were removed taking due precaution.

VI) New roller guide housing was installed, with correct M12 hexagon bolts  and including the newly introduced 10 mm washers.

VII) After final alignment of the roller guide housing, the bolts were  tightened with the correct tightening torque.

VIII) Finally the two ø8 mm guide pin holes were drilled in both roller guide housing and engine frame and afterwards newguide pins were installed

repair of Threads on Engine Block Under Process
repair of Threads on Engine Block Under Process
Repair of Thread Hole by Metal Stitching
Repair of Thread Hole by Metal Stitching

 

 

 

 

 

 

 

The repair of threads by thread repair inserts (helicoil inserts) proved to be successful as the engine is performing satisfactory and no oil leakage is observed. The shipping company owners were asked to replace the complete engine block by the manufacturers as per them it was not possible to execute this kind of repairs.

Damaged Thread Hole Under Metal Stitching and Metal Locking
Damaged Thread Hole Under Metal Stitching and Metal Locking
Metal Stitching of Bottom Area of Threaded Hole to Give Extra Strength
Metal Stitching of Bottom Area of Threaded Hole to Give Extra Strength

 

 

 

 

 

 

The above job was successfully executed by a team of experienced and dedicated team of RA Power solutions.

Cam Cover Sitting Area of Engine Block After Repair
Cam Cover Sitting Area of Engine Block After Repair

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, turbines and rotary equipments. The company specializes in executing the repairs i.e. metal stitching/metal locking, grinding and repair of crank shafts, rebabbitting of bearings, connecting rod reconditioning, overhauling of Engines which have serious problem  resulting to the immense saving to the owners.

Email Us on rajshahani@rapowersolutions.com, info@rapowersolutions.com

Phone: +91-124-4378292
+91-9213604692

RA Power Solutions was informed by one of our client regarding damage of cam case cover of MAN diesel engine on board a vessel sailing near China. The details including photographs were examined and it was observed while the cam case cover was broken in to pieces the threads on the engine body and the … Continue reading “Metal Stitching and Thread Repair Inserts”