Crankshaft Repair | Grinding of Crankshaft | Crankshaft Machining – RA Power Solutions

RA Power Solutions have been working on high-capacity diesel engine overhaul, repair, and maintenance and grinding of crankshaft for the last more than 40 years. During our work on engines on board a vessel or in large engineering plants, we have observed that the incidents of crankshafts getting damaged due to accidents are getting very often.

As we are aware that the crankshaft is the heart of the engine by means of connecting rod the crankshaft converts reciprocating motion to the liner movement which drives the engine. RA Power Solutions have the process, technology, and onsite crankshaft grinding machines ranging from 35 mm to 700 mm and crankshaft repair is now possible without disassembly of the crankshaft from the engine. The repair of the crankshaft is possible irrespective of its length and weight as we have the equipment available up to 700 mm in terms of diameter.

The crankshaft in general has various applications including diesel generating sets and marine engines typical areas of crankshaft applications are as follows:

Compressors
Railway vehicles/engines
Power generators
Forging hammers
Pumps
Marine engines, etc.

The crankshaft of high-capacity engines used for marine and land-based applications are of forged steel. RA Power Solutions has experienced technicians, and advanced technology equipment i.e. in situ crankshaft grinding machine to maintain the dimensions and tolerances strictly as per the manufacturer’s specifications and recommendations. Major parameters maintained after crankshaft grinding and repair and grinding of crankshaft are as follows:

Taper and ovality can be maintained within 0.02/0.03 mm or less as per the requirement of the engine manufacturer.
The portable in situ crankshaft grinding machine used by RA Power Solutions technicians is capable of maintaining a surface finish of far less than 0.03 RA value.
The high surface finish value after grinding of crankpin and main journal diameter of the crankshaft enhances the life of connecting rod and main bearings considerably.

Inspection of Crankpin Before Repair & Grinding

The radius profile of both the end of the crankpin or main journal and the lubricating oil profile is maintained strictly as per the original profile.
The straightness/runout of the crankshaft is checked, and the crankshaft is straightened if required by the peening process.
Counterweight can be replaced in case of damage and supporting threads are repaired onsite.

Machining of Crankshaft by Insitu Crankshaft Grinding Machine — Machining of Crankshaft by In situ Crankshaft Grinding Machine

During our work of more than four decades, we have repaired more than 10,000 crankshafts used for different applications. All the repairs are executed with a guarantee. We are an ISO-certified company and also meet the standards requirements like DNB, Lloyd’s, etc. All our technicians possess Indian CDC and can join the vessel in a short time in any part of the world.

Crankpin After Repair by Insitu Crankshaft Grinding Machine — Crankpin After Repair by In situ Crankshaft Grinding Machine

Crankshaft grinding and repair are essential processes in the field of engine maintenance and precision engineering. The crankshaft, being a crucial component in any engine, requires meticulous attention to ensure its optimal performance. At RA Power Solutions, we specialize in main bearing machining, grinding of crankshaft, and in situ crankshaft grinding.

For more information regarding in situ crankshaft inspection, in situ grinding crankpins, and cost-effective crankshaft grinding Dubai contact us at rajshahani@rapowersolutions.com or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

Grinding and Polishing of Crankshaft | Repair of Crankshaft | Crankshaft Reconditioning – RA Power Solutions

RA Power Solutions with an experience of forty years provide you with a team of experienced technicians who repair crankshaft onsite, overhaul and maintenance of diesel engine, metal stitching, grinding and polishing of crankshaft, and all the repair jobs related to the engine room on a vessel or land-based diesel power plants. We possess precision and the latest design of equipment to execute the repairs strictly as per international norms and maintain the tolerances stipulated by the manufacturer.

**Crankshaft Grinding & Polishing in Diesel Power Plant**

Crankpin Machining by Onsite Crankshaft Grinder

RA Power Solutions is the only company that designs its own tooling according to the space available at the site which helps us to grind and maintain the crankshaft tolerances as per the manufacturer’s specifications. The main advantage of onsite machining and onsite reconditioning of crankshaft is that there is no need for striping down the equipment which in most of the cases is not possible due to various restrictions.

RA Power Solutions being an Indian company execute the repair of the crankshaft on the lowest prices in comparison to the European companies who used to dictate their prices and conditions without compromising on quality.

The onsite crankshaft repair services are extended to all types of industries: petrochemical, offshore and mining, steel, cement and manufacturing plant, marine and sugar plants, etc. We are confident of our quality and have executed repairs of more than 10,000 crankshafts worldwide. We have saved many crankshafts from rejection. Clients can also avail of our consultancy services which after inspection of the crankshaft advise the various methods of repair of crankshaft on site.

**Repair of Crankpin by Specialized Tooling due to Space Constraints**

We also provide services related to engine repair i.e. turbine shaft repair, alternator shaft repair, pump shaft repair, grinding and polishing of crankshaft, onsite machining, crankshaft machining, crankshaft grinding & polishing, propeller shaft repair, metal locking & metal stitching of engine block, rebabbitting of bearings, connecting rod repair, etc.

The author is Mr. Raj Shahani, Managing Director of RA Power Solutions Pvt. Ltd. He has 40 years of experience in working on large crankshafts and Diesel Engines.

For more information regarding the grinding and polishing of crankshaft, crankshaft polisher machine and crankshaft reconditioning please email us at rajshahani@rapowersolutions.com or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

Crankpin Grinding | Crankpin Repair by Insitu Crankshaft Grinding Machine- RA Power Solutions

Crankpin grinding, and crankpin repair by in situ crankshaft grinding machine is offered by RA Power Solutions through a highly motivated team of technicians who have the experience of four decades in crankshaft grinding and crankshaft repair. It is important that the crankshaft is initially inspected by experienced technicians in order to detect the fault after the damage or accident.

**Inspection of Crankpin Under Process**

The following are the major parameters that are examined before the repair of the crankshaft:

Minimum and maximum diameter of the crankpin and main journal, taper, and ovality is checked.
Run out of main journals and deflection readings are taken to verify the loss of alignment.
A complete non-destructive test using MPI and ultraviolet lamp for heat cracks is undertaken of crankpins and the main journal of the crankshaft.
The crankshaft is also subject to a hardness test.

Based on the preliminary inspection reports prepared by the technicians the repair procedure is planned. The onsite crankshaft grinding machine used for the crankshaft repair is lightweight and is placed on the damaged crank pin from the inspection window of the engine block. There is no requirement of removing the crankshaft from the Entablature and send it to the workshop as bench-type grinders are now outdated.

The crankshaft grinding and crankshaft polishing is undertaken to maintain taper and ovality, surface finish as per the OEMs requirement. RA Power Solutions have facilities to undertake in situ crankshaft grinding, crankshaft polishing, and repair of crankshaft up to the diameter of 700 mm without removing the crankshaft from the engine block.

**Inspection of Crankshaft by Latest UV Torch**

**Crankpin Grinding of Diesel Engine While Vessel is Sailing**

During and after the repairs, all the major technical parameters are checked and a calibration report is prepared. It is possible to execute the crankshaft grinding and crankshaft repair on board a vessel while it is sailing. Technicians have seaman passports and can travel to any part of the world in the shortest possible time, thus attending to the damaged engine in a short time. We are class-approved and stand to guarantee the satisfactory performance of the crankshaft after repairs.

**Crankpin Grinding and Crankpin Polishing is in Process**

We are commonly working on the following engines:

Wartsila, Daihatsu, Mirrless Blackstone, Yanmar, Allen, MAK, MAN, B&W, Sulzer, Caterpillar, Fiat, Mitsubishi, MTU, Cummins, Deutz, Nohab Polar, Wartsila 12V32, Wartsila 18V32, Pielstick, Bergen, Detroit Diesel, MaK 552 , MaK 453, MaK 451 AK, Niigata, MaK 452 AK, Ruston, Lister Blackstone K8 Major MK2, Volvo Penta, etc.

For more information on insitu crankshaft grinding repair, insitu crankshaft repair and grinding, onsite grinding machine supplier, and repair of crankshaft contact us at rajshahani@rapowersolutions.com or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

Onsite Crankshaft Repair Services India by RA Power Solutions

RA Power Solutions offer onsite crankshaft repair services for the last four decades to the land-based engine and engines installed on vessels.

The crankshaft needs repair or grinding in case of the following defects:

Development of excessive taper and ovality more than the tolerances stipulated.
Loss of alignment of the crankshaft.
Seizure of bearing, development of line marks.
Development of pitting and rough surface of crankshaft main journal and crankpin

**Crankshaft Repair Services While Vessel is Sailing**

**Crankshaft Grinding Services- Power Plant**

The onsite repair services of crankshaft help in getting the engine back into operation in minimum time. Following crankshaft grinding services are offered by RA Power Solutions at Sea, on land, or in the shipyard:

Onsite Crankshaft Repair
Crankshaft Straightening
Onsite Crankshaft journal repair
Crankshaft Regrinding
Onsite Crankshaft polishing
Onsite Main bearing Regrinding
Onsite Crankshaft machining
Orbital crankpin machining/regrinding
Main bearing machining
Insitu Main bearing Main Journal Polishing

Crankshaft Grinding being done on a Small Crankpin Width — **Crankshaft Grinding is being done on a Small Crankpin Width**

**Crankpin After Grinding by Crankshaft Grinding Machine**

RA Power Solutions has technicians who are well-trained and have executed successfully more than 11,000 jobs of crankshaft repair. We are also considered to be the lowest-priced in the industry.

For any services related to crankshaft refurbishment, crankshaft grinding, crankpin polishing, onsite crankshaft grinding repairing service, crankshaft grinding and repair onsite, or maintenance and repair services, please free to write us at rajshahani@rapowersolutions.com or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

Repair of Crankshaft – RA Power Solutions

Reduce Cost And Breakdown Time By Onsite Repair Of Crankshaft

Onsite Crankshaft Grinding and Polishing Machine

The failure of crankpin and main journal bearing causes serious damage to the crankshaft which are as following:

Development of excessive taper and ovality in Crankshaft, Crankpin and Main Journal.
Development of crack
Abnormal increase and decrease of hardness
Loss of alignment of crankshaft resulting to the increase in deflection readings.
Development of bearing line marks, pitting, local depression
Damage of radius fillet and lube oil profile

The onsite crankshaft grinding equipment developed and manufactured by us is capable to undertake grinding and polishing of crankshaft in one setting. The tolerances after crankshaft repair are strictly maintained as per the manufacturer’s specifications.

We have a highly trained skilled team of technicians who are deputed to the plant site or on a vessel in a minimum possible time. The process followed by us for repair of crankshaft is faster, more cost-effective and convenient. It of course avoids removal of crankshaft and transport to the workshop.

The repair of crankshaft executed by RA Power Solutions Pvt. Ltd is approved by leading inspection agencies including Lloyds, DNV, and many other inspecting agencies. For more information, please write us at rajshahani@rapowersolutions.com or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

Turbine Shaft Repair – RA Power Solutions

The periodic inspection of turbine shaft is necessary. It is common to observe bearing line marks, corrosion, fatigue cracks, taper and ovality on turbine shaft bearing seating area In case these defects are not attended on time it can result to the failure of turbine shaft and damage to other parts.

RA Power Solutions Pvt. Ltd. has successfully executed repair of turbine shafts, crank shaft, rotor shaft, alternator shaft, and pump shaft numbers exceeding 170 up to the diameter of 700 mm.

Special pneumatically driven grinding equipment is used to undertake the grinding of the turbine shaft. The turbine shaft grinding equipment is portable, lightweight, and easy to carry to the site. The experienced engineers undertake the grinding of damaged bearing seating area of the turbine shaft and maintain the tolerances within 20–30 microns with a high surface finish.

For more information regarding crankshaft grinding, crankshaft repair, and grinding of crankshaft, contact us at rajshahani@rapowersolutions.com or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.