For almost 43 years, we have provided on site crankshaft grinding services, on-site crankshaft repair, crankshaft reconditioning, crankpin reconditioning, and marine crankshaft repair. Our engineers have received training in crankshaft production facilities in Europe and the United States as well as crankshaft grinding services.
It is observed that due to seizure of bearing in most of the cases, crankshaft loses its alignment and develops bend. The alignment of crankshaft is important and it is maintained at the time of machining and grinding of crankshaft.
RA Power Solutions undertakes straightening of crankshaft onsite irrespective of the length of crankshaft, diameter of CR pin and main journal. The straightening of crankshaft is done by peening procedure for which our technicians are trained. Number of jobs has been successfully executed for straightening and onsite grinding of crankshaft.
Grinding of Crankshaft by Crankshaft Grinder
At RA Power, we specialize in precision Crankshaft Grinding, a critical process that restores the functionality and integrity of crankshafts for various industries, including automotive, marine, and industrial applications. Our state-of-the-art equipment and skilled technicians ensure the highest level of accuracy and surface finish, extending the life and performance of your crankshafts.
Our specialized team and advanced machinery ensure that your crankshafts are meticulously restored to their original specifications.
Grinding of Crankshaft on VBlock by Crankshaft Grinding Machine
Insitu Crankshaft Grinding Machine from Crankcase Window
RA Power Solutions has recently supplied a crankshaft grinding machine ranging from 220 to 260 mm in Diameter to a Bangladesh-based client. This is the first onsite crankshaft grinding machine to be sold in Bangladesh.
In situ Straightening of Crankshaft is undertaken by the pining process, this in situ Crankshaft Repair saves Crankshaft from rejection. Technicians are specially trained for on-site repair of Crankshaft.
For more information on crankshaft grindingservices, in situ crankshaft grinding machine, on site crankshaft grinding, crankshaft grinding machine, and insitu crankshaft polishing email us at info@rapowersolutions.com or rajshahani@rapowersolutions.com and call us at +91 9810012383,+91 9582647131.
Engine blocks, casting and most of the parts are manufactured of common material like cast iron. Cracks developed in cast iron parts are most difficult to undertake repair by welding process as it needs pre-heating of the cast iron prior to the welding. In certain cases it can cost additional stresses resulting to the damage of casting.
Material Used in Metal Locking and Metal Stitching Process
It is proven that metal stitching and metal locking has advantage of repairing cracks in cast iron casting due to cold process using different profile and material of stitching pins and locks without applying any heat as in case of welding.
RA Power Solutions Pvt. Ltd. undertakes metal stitching and metal locking of casting and has successfully repaired various major components of high capacity diesel engine.
Application includes repair of Engine Block, Cylinder Head, Generators. Turbo Chargers, Turbine Casing, Gear Box Housing, Pump Casings, Compressor Crank Cases, Forgings Hammer, Lathe / Press/ Milling/Boaring etc .M/c. Other all Casting Equipments etc.
In last 36 years more then 650 jobs of crack repair have been successfuly executed.
It is generally observed that due to the continuous running of the engine, connecting rod big end bore develops taper and ovality. The small end bush also gets worn out. It is important that connecting rods are subject to thorough inspection after certain hours of operation as described in the manual.
Wartsila Connecting Rod Inspection
Crack detection is important for the serration area and also for connecting rod bolts. Most serious accidents happen due to the failure of connecting rod bolts that can damage the crankshaft, engine block, and other parts resulting in heavy losses.
Connecting Rod Assembled with Piston After Repair
RA Power Solutions Pvt. Ltd. engineers are available on call and can visit the vessel or a power plant with the necessary instruments to conduct an inspection on site of connecting rods. The technicians are experienced and an inspection report is submitted with necessary recommendations for the successful repair of connecting rods.
Connecting Rod of MAN engineCalibration of Connecting Rod
For more details regarding inspection on site of connecting rods please email us at rajshahani@rapowersolutions.com, or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.
RA Power Solutions Pvt. Ltd. have successfully executed crankshaft repair on board a vessel of Hyundai engine. The crankshaft repair companies based in Norway, Singapore, and UK were invited to execute the grinding operation on crankshaft bearings of which were seized due to lube oil pump failure. These companies were not able to execute the repairs due to non availability of compact portable tool which was required as the space available from the inspection window was less.
Hyundai Diesel Engine for Repair
Knowing the constraints of space, RA Power Solutions Pvt. Ltd. designed and manufactured a special-purpose crankshaft grinding machine which was inserted from the inspection window, and grinding of 6 nos. pins was successfully executed. The engine is performing satisfactorily.
The repair of crankshaft on site was possible because the crankshaft grinding machine designed by RA Power solutions was compact, lightweight and was manufactured according to the size of the window and space available in the crankcase of the engine. The technicians were able to maintain the tolerance after grinding within 20 microns against the stipulated tolerance of 30 microns in the manufacturers manual.
Repair of Crankshaft in Limited Space
Inspection for Crack Detection
CR Pin After Grinding
We have successfully done more than 10,000 jobs of crankshaft repair all over the world like Qatar, Dubai, Sudan, Indonesia, Singapore, South America, Malaysia, Jordan, Kenya, Maldives, Nigeria, Iran, Iraq, Oman, etc.
For more details on crankshaft repair, crankshaft grinding and polishing machine, diesel engine repair, or onsite crankshaft grinding contact us by email us at rajshahani@rapowersolutions.com, or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.
Cylinder liners for popular engines like 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 are manufactured by RA Power Solutions Pvt. Ltd.
The cylinder liners are centrifugally cast, machined and honed in-house. RA Power Solutions manufacturers cylinder liners up to 500 mm bore with height of 1500 mm. Cylinder liners are regularly exported.
RA Power Solutions Pvt. Ltd. also supplies second hand and reconditioned cylinder liners. Each cylinder liner is subject to crack detection test by MPI and Dye penetrant inspection. Cylinder liners are honed. We ensure that the remaining life of the cylinder liners is more than 80% and the cost is approximately 1/3rd of the new cylinder liners.
The reconditioned cylinder liners are popular and used in large by the shipping companies, diesel power plants having engines which are old and companies have stopped production.
Note: The writer of this article is Mr. Raj Shahani, Managing Director of RA Power Solutions Pvt Ltd.
For more detail on cylinder liners manufacturers and reconditoned cylinder liners contact us today email us at rajshahani@rapowersolutions.com, or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.
Good News for Shipping Companies, Power Plants and Repair Workshops.
Crankshaft grinding machine up to 700 mm diameter is designed, developed and manufactured by RA Power Solutions. Machine is having following features:
Crankshaft Grinding Machine Design: Machine is portable; light weight and can be carried to the site. Nowadays, there is no need of disassembly of complete engine.
Operation of Crankshaft grinding machine: The machine is operated pneumatically or by electrical motor. The design is so simple and machine can be easily operated by a skilled technician.
Quality:Crankshaft grinding machine is capable of maintaining close tolerance in terms of taper and ovality up to 20 microns and can also achieve the surface finish as per the International standards.
Training: RA Power Solutions Pvt. Ltd. provides training to the clients, and technicians for the duration of 3 days. The assembly, operation, and maintenance of the machine are explained.
Cost of Machine: Presently, shipping companies and power plants having high-capacity diesel generating sets have no option but to call for technicians from the companies based in Norway, Singapore, UK and various countries by paying exorbitant amount and travel expenses. The Crankshaft grinding machine is manufactured by RA Power Solutions is very reasonably priced and the cost can be recovered in 1 or 2 jobs of repairs.
Disassembly of Crankshaft Grinding Machine with Pneumatic Motor Disassembly of Crankshaft Grinding Machine
Assembly of Crankshaft Grinding Machine in Progress Assembly of Crankshaft Grinding Machine with Pneumatic Motor
Packing in Progress- Insitu Crankshaft Grinding Machine Onsite Crankshaft Grinding Machine Ready for Dispatch
WORKING OF ONSITE CRANKSHAFT GRINDING MACHINE (400-450mm)
For more information on revolution in crankshaft grinding contact us today by please email us at rajshahani@rapowersolutions.com, or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.
In the case of cracks developed in the casting of mechanical equipment, the repair of metal stitching and metal locking is proved to be the best and most successful process. In the case of the engine block and turbine casings, heavy castings are used in mechanical equipment. It is quite difficult to replace them due to cost, time factors and interchangeability issues.
The repair of cracks by metal stitching and metal locking is a cold process. No heat is generated and the same original profile is maintained. In case of cracks developed in the housing of the engine block, the crack is repaired by metal locking and metal stitching is highly recommended as there is no distortion in the central line of the housing takes place.
Metal Locking of Wartsila Diesel Engine
RA Power Solutions have experienced technicians to undertake the metal stitching and metal locking process with a guarantee.
Crack Repair in Grey Cast Iron | Aluminium and Cast Steel Components
We undertake the crack repair in grey cast iron, aluminium and cast steel components by a cold process named metal stitching, metal locking, and metal surgery. As a diesel engine repair and overhaul company with four decades of experience, we understand the criticality and load factor of the major components of engines. For the crack repair of components, planning is done based on its application, stress, and load characteristics. The use of a special metal lock and keys is decided by our experienced engineers based on the extent of cracks. All the repairs undertaken by us by metal stitching and metal locking of grey cast iron, aluminium, and cast steel components are guaranteed for satisfactory performance.
Metal Stitching of Jenbacher Engine Block Under Process
Metal Stitching of Jenbacher Engine Block
We extend metal stitching services all over the world including countries like Madagascar, Oman, Qatar, Philippines, Bahrain, Srilanka, Bangladesh, Myanmar, Turkey, Nigeria, Greece, Saudi Arabia, UK, Dubai, Malta, and Cyprus.
For more information on crack repair in grey cast iron and aluminium, metal stitching services, and cold metal stitching contact us at rajshahani@rapowersolutions.com or info@rapowersolutions.com or call us at +91 9582647131 or +91 9810012383.
RA Power Solutions have been working on high-capacity diesel engine for last more than 4 decades. The genuine and high-quality spares are very important for satisfactory performance of engine.
RA Power Solutions Pvt. Ltd. deals in spare parts and supporting equipments of following engine: 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.
The spare parts are procured from the OEMs and inspected at our works by the experienced technicians. Generally, these parts are 20 to 30% cheaper than the engine manufacturers.
RA Power Solutions also deals in reconditioned spare parts. The engines which are not in operation are sourced parts are calibrated and reconditioned as per the manufacturers specifications.
We strongly feel that considering the high cost of new spare parts, it is advisable to use the reconditioned parts which are calibrated and are within the manufacturer’s specifications. This again saves the operation cost considerably.
Following new and reconditioned spare parts of high-capacity diesel engine are available in stock:
PISTON RODS
CAMSHAFTS
CYLINDER HEADS
CONNECTING RODS
CYLINDER LINERS
CRANKSHAFTS
COMPLETE AUXILIARY ENGINES
ENGINE FRAME AND BEDPLATES
FUEL PUMPS
PISTONS
PISTON RODS
CAMSHAFTS
CRANKSHAFT
CYLINDER LINERS
CYLINDER HEADS
For more details on reconditioned ship engine parts, Spare Parts of Yanmar Engine, and reconditioning of spare parts please contact us by email us at rajshahani@rapowersolutions.com, or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.
White metal Babbitt bearing is used in engines, turbines, alternators, pumps, and various other Rotating equipment. It is important that the grade and quality of white metal which is used for babbitting of bearing is selected based on the load characteristics, and operational condition of the Babbitt bearing.
The white metal babbitting is done by a centrifugal system and this ensures that the Babbitt white metal bonds properly with the steel base of the bearing. The quality of the Babbitt bearing is checked by ultrasound for bonding.
White metal bearings
Bearing Remetallic Services
Bearing Remetallic Services for all applications of white metal Babbitt bearing are provided by us. We are rather industry leaders in providing bearing remetallic services.
Although the precision machining is of great importance the process of bonding babbitt white metal to a bearing steel shell is as critical as close dimensions of the bearing which is under the process of remetallic. We have a separate zone for undertaking bearing remetallic services equipped with digitalized, temperature control furnace, centrifugal equipment with all latest instruments. We ensure that the bonding of the white metal with the steel lining after bearing remetallic services is dense and without any pin holes.
RA Power Solutions Pvt. Ltd. undertakes babbitting of white metal bearing up to 1500 mm inner diameter. The babbitting is done by experienced technicians and is done by the centrifugal process which ensures that Babbitt white metal forms a uniform layer. The grade and quality of white metal used for babbitting are carefully selected.
The in-house machining facility ensures that all the parameters of bearings are maintained as per the manufacturer’s specifications and tolerances.
Babbitt Metal | White Metal | Babbitt White Metal Manufacturer
RA Power Solutions Pvt. Ltd. specializes in rebuilding and manufacturing white metal Babbitt bearings having different applications like gearbox bearing, engine bearing, turbine, alternator bearing, etc. We are geared up for white metal bearings rebuilding or manufacturing of new bearings on a 24*7 basis.
Understanding the importance of the composition and quality of Babbitt white metal, we manufacture the white metal strictly as per the grade specifications. A lot of care is taken to maintain the percentage of composition of various ingredients used at the time of manufacturing of Babbitt white metal. The Babbitt white metal is supplied in various forms and shapes as per the client’s requirements. We are the largest exporter of Babbitt white metal to countries like Saudi Arabia, Nigeria, South America, etc.
Bearing Manufacturers
White metal babbitt bearings up to 1500 mm for alternator, rotor, turbine, engine, and pump shaft are manufactured. We also undertake babbitting of old bearings which get damaged due to accidents or normal wear and tear.
Daihatsu Engine under size Bearings
We maintain a large stock of Daihatsu crankpin and main journal standard and under-size bearings. The bearings of all models of Daihatsu engines installed on ships are available with us ready in stock. The undersize Daihatsu engine bearing for the models which are not manufactured by Daihatsu are also available with us. We also maintain a large stock of Daihatsu engine spare parts.
Yanmar Engine Bearings and Spare Parts
Large stock of Yanmar engine bearings and spare parts for all popular models are maintained by us. The undersize crank pin and main journal bearings of the Yanmar engine which are not commonly available are maintained in stock in order to meet the urgent requirement of undersize bearings of our clients after grinding of crankpin and main journal of Daihatsu crankshafts after repairs. We also have large stock of spare parts for engines like Yanmar Wartsila, Mirrlees Black Stone ESL, MAJOR K series Generators, Ruston, Allen, MAN B& W, Daihatsu, MAK, SULZER, MTU, PIELSTICK, CATERPILLAR, BERGEN, MVM, NOHAB POLAR, ALPHA B &W, HATLAPA, SPERRE, etc.
White metal Babbitt bearings are supplied all over the world including countries like Brazil, Egypt, Panama, Russia, Argentina, Ecuador, Czech Republic, Senegal, Fiji, France, Germany, Dubai, Kenya, Chile, and Mexico.
For more information on babbitting metal, white metal bearing manufacturers, babbitt white metal manufacturer, bearing remetallic or bearing manufacturing company, contact us at rajshahani@rapowersolutions.com or info@rapowersolutions.com call us at +91 9582647131 or +91 9810012383.
The large bench type crankshaft grinding and polishing machines are outdated and are replaced by light weight, portable onsite grinding and polishing machine. The machine is driven either by pneumatic motor or is electrically operated.
The objective of using pneumatic motor is to make machine compact which can be inserted from the inspection window of the engine block for grinding of crankpin and main journal.
Pneumatic Motor Mounted on Machine
Crankshaft Grinding and Polishing
Portable Crankshaft Grinding and Polishing Machine is light weight and can be carried to the work site by the technicians. It is easy to assemble and operate. Any technician with machine shop experience can easily operate this machine. The crankshaft grinding and polishing machine is capable of maintaining taper, ovality and high surface finish after grinding operation and all the dimensions of crankpin or main journal can be controlled as per the manufacturer’s requirement.
Assembly of Insitu Crankshaft Grinding Machine
RA Power Solutions Pvt. Ltd. designs and manufactures the onsite crankshaft grinding and polishingmachine as per the customer’s requirement. We have capability of designing and manufacturing the grinding machine up to 700 mm in terms of diameter.
More than 60 crankshaft grinding and polishing machines have been supplied all over the world which are performing satisfactory. The cost of on site machining services is very low.
For more information on portable crankshaft grinding and polishing, on site crankshaft grinding, in situ crankshaft grinding, on site machining services and portable onsite in-situ grinding contact us at email us at rajshahani@rapowersolutions.com, or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.
