RA POWER SOLUTIONS PVT. LTD.

South City, Gurugram, Haryana

RA Power Solutions has recently executed the in place machining and grinding ofMAN B&W 7L23/30H Auxiliary Engine

onsite crankshaft grinding machineand necessary measuring instruments, to Suez Port, where they boarded the vessel. TheDamaged Crankpin of MAN B&W 7L23/30H Auxiliary Engine

MPI Inspection of MAN B&W 7L23/30H Engine

The standard details of the crankshaft are as follows:

(i) Six numbers of crankpins were undersized by 0.5 mm.

(ii) One number of crankpins was undersized by 2.0 mm.

(iii) We strictly maintained all parameters as per the manufacturers requirements and the maintenance manual.

RA Power Solutions is a leading global provider ofFinal Finish of 7L23/30H Crankpin After Grinding

RA Power Solutions, with 43 years of experience, has introduced a mobile service for machining of crankshafts and cylindrical shafts onsite. The failure of a compressor, pump, engine, or crankshaft in any reciprocating equipment can lead to extremely high costs and tremendous downtime.

The introduction of mobile in situ machining services by RA Power Solutions eliminates the high cost of repairs and saves time by avoiding the need to disassemble, remove the shaft, and transport it to the designated workshop.

The machining services for all types of cylindrical shafts and crankshafts up to a diameter of 700mm are extended maintaining the tolarances as per the manufacturers requirement.

Crank Pin Before Grinding

Crankshaft grinding services for all the rotary equipments like Diesel engines, compressors, pumps, forging presses are offered by us. We can maintain the tolerance after grinding within 20 to 30 microns.

We carry the portable crankshaft grinding equipment to the site all over the world to execute the repairs. The crankshaft grinding services are offered with a guarantee and at the lowest prices.

In place crankshaft machiningand grinding of the MAK-1 8CM32C engine was carried out in Burkina Faso, West Africa, by RA Power Solutions. RA Power Solutions has long been a leader ininsitu crankshaft machining and grinding, specializing in the repair of both small and large diameter of crankpins and main journals. The company brings over 45 years of experience in this field. We have developed a revolutionized tooling which has the capabilities to execute the repairs to close tolerances as stipulated in the engine manufacturers manual. Damaged Crankpin of MAK-1 8CM32C MAK-1 8CM32C Crankpin having line marks Damaged Crankpin Before Grinding Repair Hardness Check during inspection of MAK-1 8CM32C Case Study of Repair of MAK-1 8CM32C Engine Crankshaft In Burkina Faso, West Africa The major details of the crankshaft of the MAK-1 8CM32C Engine are as follows: S. No. Crankpin Details 1. Engine Make MAK-1 2. Engine Model 8CM32C 3. Crankpin Diameter Standard 280.00 MM 4. Crankpin Bearing Width 125.00 MM 5. Grinding of Crankpin Number #01, #02, #03, #04, #05, #06, #07, #08 6. Place of Execution of Grinding of Crankpin Burkina Faso, WestAfrica 7. Name of Shipping Company Reputed Company from Burkina Faso, West Africa 8. Date Of Execution 20th August to 10th September 2025 i) Due to the repeated failure of bearings, it was decided by the client to get an audit of the crankshaft for all the major parameters. RA Power Solutions deputed two (2) technicians along with the onsite crankshaft grinding machine from New Delhi to Burkina Faso. During the initial inspection, the following was checked and observed. a) The dimensional inspection of the crankpins was conducted, and excessive ovality was observed in all the crankpins. The readings for all the crankpins are pasted below: SIZE OF CR PINS BEFORE REPAIR A Aa C Cc B Bb Min Max Ovality CR-1 279.89 279.95 279.90 279.90 279.89 279.93 279.89 280.00 0.11 MM CR-2 279.88 279.94 279.89 279.89 279.91 279.89 279.88 280.00 0.12 MM CR-3 279.88 279.95 279.90 279.92 279.90 279.93 279.88 280.00 0.12 MM CR-4 279.88 279.95 279.89 279.92 279.90 279.91 279.88 280.00 0.12 MM CR-5 279.88 279.92 279.89 279.91 279.89 279.91 279.88 280.00 0.12 MM CR-6 279.87 279.91 279.89 279.88 279.90 279.89 279.87 280.00 0.13 MM CR-7 279.88 279.95 279.89 279.94 279.90 279.96 279.88 280.00 0.12 MM CR-8 279.88 279.95 279.89 279.94 279.90 279.93 279.88 280.00 0.12 MM b) As protocol, all the crankpins were checked for hardness by a portable hardness tester and were found within limits. c) MPI was also undertaken to check the cracks, and no abnormality was observed. ii) The grinding of all the eight (8) crankpins was executed onsite by our technicians. The first step size and tolerance of 0.02/0.03 MM were maintained. Onsite crankpin inspection of MAK-1 8CM32C MPI of Crankpin of MAK-1 8CM32C In Place Machining of Crankshaft of MAK-1 8CM32C Engine RA Power Solutionshas been successfully executing the repair of high-diameter crankshafts up to 700 mm. We also specialize inonsite grinding of small-diameter crankpinswith a bearing width of the crankpin as low as 50 mm to execute onsite such types of complex crankshaft repairs onsite. We have developed special-purpose onsite crankshaft machining equipment by which the repairs can be executed. We execute repairs for Marine, industrial, stationary power, and offshore sectors all over the world. Insitu crankshaft grinding and polishing of MAK-1 8CM32C Crankpin after grinding and polishing Our technicians are available to travel worldwide on short notice. Additionally, several of our technicians hold valid US visas, enabling them to travel to South America, the Caribbean, and other destinations as needed. At RA Power Solutions, we provide specialized crankshaft grinding machines, onsite crankshaft grinding repair, insitu crankshaft grinding, Onsite crankshaft grinding machines, insitu crankshaft

Ra Power Solutions is a company that specializes in onsite crankshaft repair and grinding services for various industries, including marine, power plants, and industrial sectors. Their services are aimed at repairing damaged or worn-out crankshafts without the need for dismantling or removal from the engine.

Ready stock of Crankpin undersize Bearings

i) RA Power Solutions maintain a stock of undersize bearings which are required immediately after grinding. In most cases, we send our technicians along with the undersize bearing which facilitates immediate commissioning & operation of the engine after the grinding of the crankshaft is done.

ii) The Daihatsu 5DC-17 engine manufacturer recommends grinding of crankpins only up to 1.0 mm undersize. With our experience of more than 43 years in the repair of marine engine crankshafts, we have undersized the crankpins up to 3.0 mm and engines are performing satisfactorily.

iii) The successful repair of the crankshaft has resulted in saving of huge amount for the owners of shipping companies.

RA Power Solutions have a team of technicians who are skilled and specialises in providing onsite crankshaft grinding services. They are experts in the refurbishment of crankshaft, crankpin and main journal bearings onsite. We have forty years of experience working on board sea going vessels and off-shore all over the world.