Insitu Machining & Polishing of Crankshaft | Saves Time & Money

In the world of heavy machinery, such as marine engines, power plants, and industrial compressors, a small crankshaft defect can lead to costly breakdowns. Traditional crankshaft repair requires full engine disassembly, transporting the crankshaft to a workshop, machining, and reinstallation—all of which eat into time, budget, and productivity.

That’s where in situ machining and polishing of the crankshaft come in. Performed directly within the engine block, this technique restores crank journals and crankpins without removal, minimizing downtime, labor, and logistical headaches. On site, centimeter-level precision meets OEM standards.

Inspection of the onsite crankshaft machine

What Is Insitu Machining & Polishing of Crankshaft?

In‑place repair: A portable crankshaft grinding-polishing unit is mounted around the crank journal or link pin while the crankshaft stays installed
Precision grinding & polishing: Removes microns of material to restore geometry, followed by smooth finishing—achieving tolerances within 10–25 µm and RA surface quality per OEM specs.
Final quality checks: Use tools like MPI, micrometers, and vibration analysis to ensure balanced, defect-free journals.

On site crankshaft grinding and repair of YANMAR 8N330L-EV Auxiliary Engine

Why Our Approach Stands Out?

We’ve combined best-in-class workflows from global industry leaders and insights from leading providers, delivering:

Portable machines for 50–700 mm journals, lightweight & compact
24/7 mobilizable teams ready for emergency onsite response
Standard-compliant surface finishing (10–25 µm accuracy, OEM RA)
Advanced testing tools: MPI, vibration analysis, hardness checks, post-process QA

Fast, Precise, On Site

At RA Power Solutions, we deliver top-tier insitu machining and polishing of crankshafts directly at your location—whether on a vessel, in a power plant, or at an industrial site. Our compact, vibration‑dampening grinding machines (handling journals from 35–700 mm). It allow full repairs without dismantling the engine, even while sailing or under operation

Onsite Crankshaft Grinding and Polishing

To arrange on‑site insitu machining & polishing of crankshaft—or inquire about our portable crankshaft grinding machines and training services—contact us:
Phone: +91 95826 47131 / +91 98100 12383

Email: info@rapowersolutions.com / rajshahani@rapowersolutions.com

FAQs:

Q1: What’s the accuracy of insitu polishing?

Precision of 10–25 μm, achieving OEM surface finish quality.

Q2: How long does the process take?

Typically hours to a few days, versus weeks for traditional repair.

Q3: Can it be done offshore?

Yes—fully portable systems and global teams support onshore and offshore operations.

Insitu Crankshaft Machining | 45 Years of Experience

In the realm of heavy machinery and marine engines, the crankshaft stands as a pivotal component, converting linear piston motion into rotational force. Over time, due to operational stresses, crankshafts can suffer wear, misalignment, or damage, leading to decreased efficiency or complete engine failure. Traditionally, repairing such issues necessitated disassembling the engine and transporting the crankshaft to a workshop—a process both time-consuming and costly.

**Crankpin Polishing After Inspection of Crankshaft**

Understanding In Situ Crankshaft Machining

In Situ Crankshaft Machining involves the use of specialized portable equipment to repair and restore crankshafts directly within the engine housing. This method eliminates the logistical challenges of transporting large engine components and significantly reduces downtime.

Key processes in insitu machining include:

Crankpin and Main Journal Grinding: Restoring the surface finish and dimensional accuracy of worn or damaged journals.
Polishing: Achieving the desired surface roughness to ensure optimal bearing performance.
Crack Detection and Hardness Testing: Ensuring the integrity and durability of the crankshaft repair.

Advantages of In Situ Crankshaft Machining:

Minimized Downtime: Repairs are conducted onsite, allowing machinery to return to operation swiftly.
Cost-Effective: Eliminates transportation and disassembly costs associated with traditional repair methods.
Precision and Quality: Advanced portable machining tools ensure repairs meet or exceed OEM specifications.
Versatility: Applicable to a wide range of engines across industries, including marine, power generation, and industrial sectors.

crankshaft grinding repair — Crankshaft Machining Under Process

RA Power Solutions: Pioneers in In Situ Crankshaft Machining

With over four decades of experience, RA Power Solutions has been at the forefront of in situ crankshaft machining. Our team of skilled technicians is equipped with state-of-the-art portable machinery, capable of handling crankshafts ranging from 35 mm to 700 mm in diameter.

Our comprehensive services include:

On-site crankshaft grinding and polishing
Crack detection using Magnetic Particle Inspection (MPI)
Hardness testing to assess material integrity
Customized repair solutions tailored to specific engine requirements

crankpin after ginding — crankpin after grinding

By choosing RA Power Solutions, clients benefit from reduced operational disruptions, cost savings, and the assurance of quality workmanship.

For more details of the On Site Crankshaft Repair, In Situ Crankshaft Machining, Onsite Crankshaft Repair, email us at info@rapowersolutions.com, call at +91-9582647131,+91 9810012383.

In Situ Crankshaft Grinding | Onsite Services | Innovative Repairs | Bangladesh

When it comes to maintaining engine performance, the crankshaft is the most important component. Found in marine vessels, power plants, and heavy machinery, it’s a crucial part of the engine. But when it gets damaged or worn out, it can bring operations to a screeching halt, leading to expensive repairs and downtime. Traditionally, fixing a crankshaft meant removing it entirely— a process that’s time-consuming, costly, and a logistical headache. RA Power Solutions is a global leader in crankshaft repair, which has brought its revolutionary in situ crankshaft grinding technology to Bangladesh. This innovative solution is changing the game for industries across the country.

MPI Test of damaged crankshaft — **Crankshaft Inspection Before Grinding and Polishing**

What is In Situ Crankshaft Grinding?

In simple terms, in situ crankshaft grinding is a way to repair crankshafts without taking them out of the engine. Instead of dismantling the entire machine and sending the crankshaft to a workshop, the repair is done right where the equipment is located. Using specialized portable grinding machines, technicians can restore the crankshaft’s journals (the smooth, polished surfaces that connect to other engine parts) to their original size and finish. This ensures the engine runs smoothly and extends its lifespan, all without the hassle of removal.

Why RA Power Solutions Stands Out

RA Power Solutions is a trusted name in the world of crankshaft repair, with 4 decades of experience and a reputation for excellence. The company has brought its expertise to Bangladesh, offering in situ crankshaft grinding services to industries like shipping, power generation, and manufacturing. Their team of skilled technicians uses advanced crankshaft grinding machines to deliver repairs that meet or exceed OEM (Original Equipment Manufacturer) standards. This is especially valuable in Bangladesh, where industries often face logistical challenges and need quick, cost-effective solutions to keep operations running.

Crankshaft repair under process — **Crankshaft repair in process**

The Benefits of In Situ Crankshaft Grinding:

Less Downtime, More Productivity:

Since the crankshaft doesn’t need to be removed, repairs are completed much faster. This means less downtime for businesses and more time for productivity.

Precision Repairs:

RA Power Solutions uses cutting-edge technology to ensure the crankshaft is restored to its original specifications. This precision ensures the engine performs at its best and lasts longer.

On-Site Convenience:

Whether it’s a remote power plant or a ship docked at a port. RA Power Solutions can bring its portable grinding machines to the site. This flexibility is a huge advantage for industries in hard-to-reach locations.

One standout example of RA Power Solutions’ impact in Bangladesh is their work with a major power plant. The plant’s crankshaft had worn down over the years of use, threatening to shut down power generation. Instead of going through the lengthy and expensive process of removing the crankshaft. RA Power Solutions’ team performed in situ grinding onsite. They restored the crankshaft to its original condition, ensuring the plant could continue operating without interruption. This not only saved the plant from costly downtime but also demonstrated the effectiveness of in situ grinding in real-world scenarios.

As industries in Bangladesh continue to grow, the demand for efficient and reliable maintenance solutions is on the rise. In situ crankshaft grinding is perfectly positioned to meet this demand. RA Power Solutions, with its advanced technology and experienced team, is leading the charge. By adopting this innovative technique, businesses in Bangladesh can reduce repair costs, minimize downtime, and keep their operations running smoothly.

**Crankpin after grinding and polishing**

**Picture showing crankpin after grinding and polishing**

For more information regarding insitu crankshaft grinding and repair, in situ crankshaft grinding, onsite services, and crankshaft grinding and repair in Bangladesh, please contact us at rajshahani@rapowersolutions.com or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

Wartsila | Bearing Rebabbitting | Repair | White Metal Bearings

RA Power Solutions was approached by a Russian company based in Yekaterinburg, Russia, with a request for urgent repair of Wartsila Generator Bearings.

**Wartsila Generator Bearing Babbitt White Metal Damaged**

The Generator Bearing was air freighted to us for repair. The following are the main dimensions of the Generator Bearing:

S.NO	Description	Standard Dimensions with Tolerance as Per Drawing
1.	Bearing Inner Dia (Bore)	250.00 (0.03)
2.	Bearing 2nd Inner Dia	266.00MM
3.	Bearing Outer Diameter	507.00MM
4.	Bearing White Metal Width	250.00MM
5.	Bearing Total Width	263.00MM
6.	Client	Based in Yekaterinburg, Russia

**Rough Drawing of Wartsila Generator Bearing**

**Shaft Diameter on Which Bearing is Assembled**

**Photo Showing Wartsila Made Generator Bearing**

Pre-Inspection of Generator Bearing of Wartsila :

i) The bearing was thoroughly cleaned, and the white metal was broken and chipped off from the bearing inner diameter.

ii) The bearing was subject to a shot blasting process for cleaning.

iii) Hardness and MPI for crack detection were done and were observed within limits.

iv) Rebabbitting of the generator bearing was undertaken in our plant, which has the latest breed of centrifugal equipment and machines. The bearing ID was maintained as per the drawing received from the client.

**Wartsila Generator Bearing After Rebabbitting**

**Wartsila Generator Bearing Inspection under Process**

With 45 years of experience, RA Power Solutions undertakes rebabbitting of large bearings up to 1500 MM in diameter, as well as manufacturing new bearings according to drawings or samples.

**Wartsila Generator Bearing Ready for Dispatch**

Developing and manufacturing bearings as large as 1500 mm in diameter is challenging. RA Power Solutions’ manufacturing, precision engineering, and quality control expertise are evident in this success story. The performance and reliability of these bearings are crucial in industrial machines to ensure smooth operation.

We have regularly executed services in Dubai, Fujairah, Qatar, Saudi Arabia, Oman, Iraq, Togo, Malta, Freetown, Egypt, China, Germany, Malaysia, Iran, Indonesia, Vietnam, Jordan, Singapore, etc.

For more information regarding Rebabbitting Bearing of Wartsila, repair of Generator Bearing of Wartsila, please contact us at rajshahani@rapowersolutions.com or info@rapowersolutions.com or call us at +91 9582647131 or +91 9810012383.

Crankshaft Repair of HIMSEN HYUNDAI 6H 17/28 | Worldwide

The Crankshaft Repair of the HIMSEN HYUNDAI 6H 17/28 engine was successfully repaired at MIP Mersin, Turkey. The engine, owned by an Italian company, suffered a severe breakdown due to a failure in one of its auxiliary engines.
RA Power Solutions was contacted and promptly dispatched two experienced technicians along with onsite crankshaft grinding equipment. The vessel was anchored at MIP Mersin, Turkey, where the repair was carried out.

**CR Pin of HIMSEN HYUNDAI 6H 17/28 Before Repair**

The following are the major Engine and Crankpin details:

S. No.	Engine and Crankpin Details
1.	Engine Make	HIMSEN HYUNDAI
2.	Engine Model	6H 17/28
3.	Crankpin Diameter Standard	175.00MM
4.	Crankpin Bearing Width	60.00 MM
5.	Place of Execution of Grinding of Crankpin	MIP Mersin, Turkey
6.	Name of Shipping Company	Reputed Company from Italy

Key Observations of the Crankshaft:

Visual Inspection Findings:

1. The breakdown was caused by a lubricating oil pump failure, leading to damage to all connecting rod bearings.

2. Bearing material was embedded on all six crankpins and was carefully removed.

3. After polishing, a dimensional inspection showed taper and ovality ranging from 0.22 MM to 0.86 MM.

The Dimensional Inspection Report of Six (6) Number Crankpins of HIMSEN HYUNDAI 6H 17/28:

SIZE OF CR PINS BEFORE REPAIR
	A	Aa	C	Cc	B	Bb	Min	STD	Ovality
CR-1	174.74	174.85	174.62	174.73	174.66	174.88	174.62	175.00	0.38 MM
CR-2	174.83	174.92	174.80	174.78	174.83	174.93	174.78	175.00	0.22 MM
CR-3	174.70	174.90	174.55	174.69	174.48	174.54	174.48	175.00	0.52 MM
CR-4	174.78	174.88	174.79	174.72	174.79	174.92	174.72	175.00	0.28 MM
CR-5	174.78	174.88	174.76	174.92	174.72	174.78	174.72	175.00	0.28 MM
CR-6	174.22	174.80	174.14	174.78	174.37	174.85	174.14	175.00	0.86 MM

4. Hardness testing revealed acceptable levels, with minor exceptions in a few spots, which were determined not to be harmful.

5. MPI testing for cracks showed minor hairline cracks, but all other parameters were within acceptable limits.

Actions Taken by RA Power Solutions Technicians:

1. The grinding of all six (6) crankpins was undertaken by our insitu crankshaft grinding machine.
2. The 3 number of crankpins diameter was reduced by 1.00 MM, and the final size was maintained as 174.00 MM.
3. The 3 number of crankpins diameter was reduced by 1.50 mm, and the final size was maintained at 173.50 MM.

Final Report After Grinding is Pasted Below:

SIZE OF CR PINS AFTER REPAIR
	A	Aa	C	Cc	B	Bb	Min	U/S	Ovality
CR-1	173.48	173.49	173.49	173.48	173.50	173.50	173.48	173.50	0.02MM
CR-2	173.98	173.99	174.00	173.99	173.98	173.99	173.98	174.00	0.02MM
CR-3	173.49	173.50	173.50	173.48	173.49	173.50	173.48	173.50	0.02MM
CR-4	173.98	173.99	173.98	174.00	173.98	174.00	173.98	174.00	0.02MM
CR-5	173.99	173.99	173.98	174.00	173.98	173.99	173.98	174.00	0.02MM
CR-6	173.48	173.49	173.49	173.50	173.50	173.48	173.48	173.50	0.02MM

The tolerance for all six crankpins was maintained within 0.02 MM.

**HIMSEN HYUNDAI 6H 17/28 After Grinding And Polishing**

Expertise and Availability:

RA Power Solutions specializes in on-site crankshaft repair and grinding services worldwide. We have successfully executed projects in Dubai, Fujairah, Qatar, Saudi Arabia, Oman, Iraq, Togo, Malta, Freetown, Egypt, Malaysia, Iran, Indonesia, Vietnam, Jordan, Singapore, and other locations.

Our skilled technicians are available 24/7 and can be deployed on short notice. Many of our technicians also hold valid US visas, enabling us to offer services in South America, Caribbean countries, and beyond.

For more information about Crankshaft Repair of HIMSEN HYUNDAI 6H 17/28, crankshaft grinding and repair services, please contact us:
Email: rajshahani@rapowersolutions.com or info@rapowersolutions.com
Phone: +91 9582647131 or +91 9810012383.

Onsite Machining of Crankshaft By RA Power Solutions | Bangladesh

RA Power Solutions is a trusted name in the field of onsite machining of crankshafts, specializing in the precision repair of crankshafts. Crankshafts are important components in engines, and when they require maintenance or repair, downtime can be costly. That’s where RA Power Solutions steps in, offering efficient and cost-effective services.

We have recently executed onsite machining of the crankshaft in Bangladesh. Our highly skilled technicians are equipped with state-of-the-art portable machinery designed to tackle crankshaft repairs at your location. Whether it’s in a marine engine, industrial generator, or any other application, we bring the workshop to you. This eliminates the need for expensive Onsite crankshaft repair in Bangladesh and minimizes downtime, saving you time and money.

RA Power Solutions’ onsite machining services encompass a wide range of solutions, including grinding, polishing, and journal repair. We ensure that your crankshaft is restored to its original specifications, guaranteeing optimal performance and longevity.

When you choose RA Power Solutions for the onsite machining of crankshafts. You can trust that your equipment is in capable hands, and you’ll be back up and running in no time. Contact us today to discuss your onsite machining needs and experience the difference our expertise makes.

We have been regularly executing the repairs of onsite machining in Bangladesh, Madagascar, Oman, Qatar, Philippines, Bahrain, Sri Lanka, Myanmar, Turkey, Nigeria, Greece, Saudi Arabia, UK, Dubai, Malta, Cyprus, Singapore, Malaysia, Colombia, Iraq, Iran, Dubai, Antigua and Barbuda, Belize, Dominica, Dominican Republic, Netherlands, Belgium South America, Jordan, Ecuador, Singapore, Indonesia, Brazil, Scotland, Italy, UK, South Africa, Singapore etc.

For more information on the Onsite crankshaft repair in Bangladesh, main engine maintenance, main bearing machining, and onsite crankshaft machining service, please contact us at rajshahani@rapowersolutions.com or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

Turbine Journal Bearing Manufacturers | RA Power Solutions

Elevate your turbine’s performance with RA Power Solutions, a trusted turbine journal bearing manufacturer. Discover how our precision-engineered bearings can enhance your equipment’s efficiency, reliability, and longevity.

As a leading expert in the field of power generation and maintenance, RA Power Solutions specializes in crafting high-quality journal bearings for various types of turbines. We are the best manufacturer of turbine bearing. Our bearings are meticulously designed and manufactured to meet the demanding requirements of modern industries, ensuring optimal performance under even the most challenging conditions.

On-site repairs and grinding of rotor shafts, alternator shafts, and turbine shafts are executed in place, eliminating downtime associated with the disassembly, transportation, and reinstallation of equipment. Our operations span the globe, and our clients consider RA Power Solutions a true solutions-driven partner for avoiding financial losses during accidents. With over four decades of experience in in situ grinding and repair of rotor shafts, alternator shafts, pump shafts, and turbine shafts, we have provided our services to reputable companies in Qatar, Dubai, the Maldives, Nigeria, Sri Lanka, and other countries.

For more details on the Turbine Journal Bearing manufacturer, manufacturing of turbine bearing, and turbine journal bearing manufacturing, onsite machining, contact us at rajshahani@rapowersolutions.com or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

RA Power Solutions: Revolutionizing Metal Surgery

Metal surgery is a critical aspect of maintaining and restoring the efficiency of industrial machinery, and RA Power Solutions excels in this specialized field. With our expertise, we offer a wide range of metal surgery services that address the unique challenges faced by various industries.

Metal surgery not only extends the lifespan of machinery but also enhances its performance, reducing downtime and maintenance costs for businesses across diverse sectors.

What sets RA Power Solutions apart is our commitment to delivering high-quality metal surgery services that adhere to international standards. Our experienced technicians meticulously analyze each project’s requirements and execute repairs with utmost precision, ensuring that the final result meets or even exceeds client expectations.

Whether it’s metal stitching metal locking, RA Power Solutions stands as a trusted partner for industries relying on precision engineering, guaranteeing the longevity and efficiency of their machinery through impeccable metal surgery solutions.

Contact us for repairing cast iron metal surgery at rajshahani@rapowersolutions.com or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383 for more information.

Cylinder Liners: Quality and Precision from RA Power Solutions

Cylinder liners are important components within internal combustion engines, playing a key role in ensuring the longevity and efficiency of these powerhouses. RA Power Solutions, a well-known name in the industry, specializes in manufacturing and supplying high-quality cylinder liners that are designed to meet the most rigid performance standards. These cylinder liners are precision-engineered to withstand the extreme conditions and wear and tear experienced within engines, providing a robust barrier between the piston and cylinder walls.

RA Power Solutions’ cylinder liners are crafted with precision and adhere to strict quality control measures. They are made from top-grade materials. This ensures durability and reduced friction. As a result, engine performance and fuel efficiency improve. Whether for automotive, marine, or industrial use, our cylinder liners are trusted worldwide. Professionals rely on their exceptional quality and reliability. They are a cornerstone of efficient and long-lasting engine operation.

We provide the following cylinder liner:

Steel Cylinder Liner Manufacturer
Cylinder Liner Manufacturer
Allen Cylinder Manufacturer
Cylinder Liner Sleeve Manufacturer
Cylinder Liner And Sleeves
Main Engine Cylinder Liner
Aluminium Cylinder Liner
Compressor Cylinder Liner
Cylinder Head Liner
Cast Iron Cylinder Liner
Cast Steel Cylinder Liner
Cylinder Liner For Forging Press

RA Power Solutions is renowned for exporting high-quality cylinder liners worldwide. With a commitment to excellence, they ensure each liner meets stringent industry standards. Their state-of-the-art manufacturing processes and rigorous quality checks guarantee durability and performance. Trusted by clients globally, RA Power Solutions delivers precision-engineered cylinder liners that enhance engine efficiency and lifespan. We provide the following services regarding cylinder liners i.e. cylinder liner repair, Cylinder Liner For Forging Press, Cylinder Liner For Pump, Cylinder Liner Replacement, Cracked Cylinder Liner Repair, Cylinder Liner Installation, Cylinder Liner And Sleeves, Cylinder Liner Manufacturer And Supplier, Cylinder Liner Manufacturer, Exporter And Supplier, Cylinder Liner Manufacturer Dubai, UK, USA, Cylinder Liner Customize Manufacturer, Cylinder Liner Small Quantity, Cylinder Liner Production Factory Prices, Cylinder Liner International Quality Low Prices, Cylinder Liner Manufacturer.

For more information regarding cylinder liners exporter, and cylinder liner manufacturer, please contact us today at rajshahani@rapowersolutions.com or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

Crankshaft Grinding Services | In Situ Crankshaft Grinding | RA Power Solutions

**Inspection, Grinding & Polishing of Crankpin is in Process**

RA Power Solutions offers top-notch crankshaft grinding services that are second to none in the industry. With years of expertise & state-of-the-art equipment, we specialize in the precise grinding of crankshafts, ensuring optimal engine performance and longevity. Our team of experienced technicians is well-versed in handling a wide range of crankshafts, from small engines to large industrial ones.

Whether it’s repairing a damaged crankshaft or enhancing its surface finish for improved functionality. RA Power Solutions is a trusted partner for all your crankshaft grinding needs. Our commitment to quality and efficiency makes us a preferred choice for clients seeking reliable & cost-effective crankshaft grinding services.

When it comes to crankshaft grinding, RA Power Solutions stands out as a leader in the industry. We employ advanced grinding technology. Our team of experienced professionals delivers precision grinding solutions. We meet the highest standards of quality and performance.

At RA Power Solutions, we offer comprehensive crankshaft grinding services to restore the functionality and performance of your engine’s crankshaft. With over 45 years of experience, our skilled technicians utilize state-of-the-art equipment and proven techniques to deliver high-quality results, ensuring your crankshaft meets the exact specifications required for optimal engine performance.

For more information on crankshaft grinding, crankshaft grinding machine exporter, Insitu Crankshaft Grinding, On Site Crankshaft Grinding, Crankshaft Grinding Machine Supplier, Insitu Crankshaft Grinding Machine Supplier, and Onsite Crankshaft Grinding Machine Supplier, contact us at rajshahani@rapowersolutions.com or info@rapowersolutions.com or call us at +91 9582647131 or +91 9810012383.