• Crankshafts are critical components in engines used across industries

• Wear and damage affect engine efficiency and reliability

• Precision machines are required to restore crankshaft geometry

• Modern industries demand portable, high-accuracy grinding solutions

What is a Crankshaft Grinding Machine?

• A specialized machine used to grind and restore crankshaft journals and crankpins

• Ensures dimensional accuracy and surface finish

• Additionally, designed for both workshop and onsite (in-situ) applications

• Essential for engine rebuilding and maintenance

Role of Crankshaft Grinding Machine Manufacturers

• Design and develop precision-engineered machines

• Ensure durability and performance under industrial conditions

• Provide machines capable of handling various crankshaft sizes

• Focus on innovation for portability and ease of use

Key Features of Modern Crankshaft Grinding Machines

• Portable Design—Easy to transport and install onsite

• High Precision—Maintains OEM tolerances

• Versatility—Suitable for marine, power, and industrial engines

• Compact Structure—Works in confined engine spaces

• User-Friendly Operation—Quick setup and minimal downtime

Onsite Capability – A Major Advancement

• Machines designed for in situ crankshaft grinding without removing the crankshaft

• Reduces dependency on workshop-based repairs

• Ideal for remote, offshore, and heavy industrial environments

• Enables faster repair cycles and operational continuity

Advantages of Using Advanced Grinding Machines

• Improves crankshaft life and performance

• Ensures precise alignment and finish

• Reduces repair time significantly

• Minimizes operational costs for businesses

• Supports preventive and corrective maintenance

R A Power Solutions – Leading Manufacturer

• Trusted manufacturer of crankshaft grinding machines

• Over four decades of engineering expertise

• Machines designed for onsite and heavy-duty applications

• Proven performance across global industries, including South Africa

• Continuous innovation to meet modern industrial requirements

Applications Across Industries in South Africa

• Marine engines and the shipping industry

• Mining and heavy equipment

• Power generation plants

• Oil & gas sector

• Industrial manufacturing units

Why Businesses Choose the Right Manufacturer

• Reliability and machine performance

• Precision and consistent output

• Long-term durability

• Technical support and expertise

• Ability to handle complex grinding requirements

For more information regarding crankshaft grinding machine manufacturers and onsite crankshaft grinding solutions:

Email us at rajshahani@rapowersolutions.com, info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

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RA Power Solutions manufactures crankshaft grinding machines ranging from 60 mm to 700 mm in diameter. We designed the crankshaft grinding machine in technical collaboration with a leading Italian company. The Crankshaft Grinding machine is portable, lightweight, and easy to operate. The technicians can transport the machine as luggage to any part of the world.

Conventional Bench-Type Crankshaft Grinding Machines Are Outdated For the Repair of Crankshafts

In olden times, in case of any breakdown in the crankshaft, the only option was to remove it from the ancient block and send it to the designated workshop, duly packed for repair. The whole process was not only time-consuming, but also very expensive for the complete engine to be disassembled. Additionally, the crankshaft could potentially sustain damage during transportation.

Primary Features of the Innovative Onsite Crankshaft Grinding and Polishing Machine

(i) The State-of-art onsite grinding machine replaced the obsolete heavy-duty bench-type crankshaft grinding machine.

(ii) The onsite crankshaft honing and polishing machine is portable, enabling operators to conveniently transport it aboard a vessel, to a power plant, or to any installation globally.

(iii) Simple to operate and straightforward to maintain.

(iv) We developed the onsite crankshaft grinding and polishing machine to ensure precise control of tolerances in taper, ovality, surface finish, runout, and other parameters. All adhere to the manufacturer’s specifications.

(v) Our workshop offers complimentary onsite training.

Assessment of Quality and Reliability in Insitu Crankshaft Grinding Equipment

RA Power Solutions is an ISO-certified organisation, dedicated to maintaining rigorous quality control standards throughout the manufacturing process.

The primary structural component of our insitu crankshaft grinding machine is manufactured from high-grade titanium steel, a material selected for its inherent vibration-dampening properties. This guarantees the seamless and accurate honing and polishing of crankshafts, even during vessel operation. We rigorously inspect each component and continuously refine its metallurgical characteristics using field-testing and performance data from operational environments.
Our in situ crankshaft grinding devices are available at competitive prices, rendering them accessible to shipping companies, power generation facilities, and engine repair establishments. Typically, it takes two to three assignments to recover the initial investment. Eliminate dependence on expensive European services; instead, procure your own equipment and assume complete responsibility for crankshaft maintenance, thereby realizing savings in both time and financial resources.

Introduction of the Crankshaft Grinding Machine by R A Power Solutions:

RA Power Solutions has revolutionised crankshaft repair with its onsite grinding machine. It can grind crankshafts without removing them from the block. Technicians travel worldwide with this portable machine and perform repairs directly onsite.

R A Power Solutions manufactures crankshaft grinding machines up to a diameter of 700 mm and has exported more than 88 machines all over the world.  We offer free onsite training for operating and maintaining the grinding machine. You may participate in the training at our training facility near New Delhi or arrange for our team to conduct the session at your location.

Engine repair companies, shipping companies, and high-capacity power plants widely use our crankshaft grinding machines for efficient and precise engine maintenance. We sold more than a thousand onsite crankpin and main journal grinding machines worldwide. All the machines are performing satisfactorily. References can be provided upon request.

We are executing crankshaft grinding repair services in Bahrain, Kuwait, Oman, Qatar, Saudi Arabia, United Arab Emirates, Vietnam, UK, USA and other countries.

For more information on portable crankshaft grinding machines, crankshaft polishing crankpin machines, onsite grinding of crankshafts, and main journal grinding equipment, please email us at rajshahani@rapowersolutions.com, or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

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Certainly, you have read that correctly. No disassembly. There is no shipping available. There is no need to wait for weeks.

What distinguishes RA Power Solutions?

They possess a fleet of in situ crankshaft grinding machines that are portable, compact, and designed to perform precise repairs at your location. This service is available whether you are on a marine vessel in the middle of the ocean or at a power plant that cannot shut down.
These devices accommodate crankshaft diameters ranging from 35 mm to 700 mm. That essentially encompasses the majority of auxiliary and main engines utilized in heavy industry, mining, power plants, and shipping.

Why In Situ Crankshaft Grinding Is a Smart Choice

• No disassembly is required.

• Beware of the antiquated approach that necessitates the complete removal of the crankshaft and its transportation to a workshop.
• The portable machine penetrates the engine block through the inspection window and completes the task immediately.

• Significant time saving

• Repairs that have historically required weeks?
• The team can resolve specific crankshaft issues in as little as 24 hours with RA Power Solutions—prompt turnaround results in minimal downtime.

• Extremely cost-effective

• There are no logistics expenses.
• There is no charge for reinstallation.
• No production revenue was lost while the crankshaft was awaiting its return from the workshop.
• A rapid resolution results in a reduction in expenditures.

• Precision equivalent to that of the original equipment

1. The crankpin is precisely restored to the OEM tolerance through the crankshaft grinding and polishing procedure.
2. The surface quality has been enhanced to 0.2 micron Ra, which translates to smooth AF.
3. It is also possible to polish and refine.
4. Polishing/honing can be performed without the need for full grinding if the crankpin has minor damage or if a surface finish enhancement is required.

Real Results. Real Experience.

This is not a novel concept for RA Power Solutions. For more than 45 years, they have been servicing engines on a global scale, including those in factories, power plants, and ships.
They did not merely perfect the process; they also constructed their own onsite crankshaft milling machine and have already sold over 70 units worldwide.
The most intriguing aspect is that they provide complementary training to the client’s technicians during the project, ensuring that your team is fully informed about the situation.

Why the industry relies on RA Power Solutions

Over 45 years of experience in crankshaft repair
• Portable crankshaft grinding machines for 35 mm to 700 mm shafts
• Precision repair without engine disassembly
• Fast turnaround and global reach
• Technicians trained onsite

Are you prepared to restore your crankshaft without interrupting your operations?

Call/WhatsApp: +91 9582647131, +91 9810012383.

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

Refrain from squandering time on obsolete crankshaft repairs. Ensure that your plant remains operational. Continue earning.
Our organization, RA Power Solutions, is committed to your support.

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Features of the Crankshaft Grinding Machine

1. Portable Design:

• Crankshaft grinding machine specifically developed for onsite crank pin grinding and polishing in confined spaces.
• Eliminates the need to remove the crankshaft from the entablature, minimizing downtime.
• Lightweight and Ergonomic:
• We continuously optimize component weight to ensure easy handling and global transportation.
• Designed for operator comfort and convenience during repair operations.

2. High-Quality Construction:

• We build the main body with high-grade titanium alloy for unmatched strength and vibration control.

3. Precision and Performance:

• Capable of maintaining close tolerances of 0.02 mm.
• The crankshaft grinding machine is used even while the vessel is sailing, ensuring uninterrupted operations.

4. Single-Setting Operation:

• Both crankpin and main journal grinding and polishing can be performed in one setup.
• Eliminates the need for multiple adjustments during operation.

5. Versatile Functionality:

• Suitable for honing and polishing when damage is minor, without reducing the crankshaft diameter.
• Effectively removes surface line marks, pitting, and rust to improve surface finish.

6. Complete Supply Package:

• Delivered with all necessary consumables, sufficient to grind or polish one complete crankshaft.

7. Training and Support:

• A senior technician is deputed to the client’s site for comprehensive training.
• Training covers equipment operation, handling, and maintenance.

The Crankshaft Grinding Machine isn’t just portable—it’s precise.

We’re talking accuracy within 10 microns (that’s micrometer-level precision), with surface finishing that complies with international quality standards. It’s lightweight, simple to carry, and super user-friendly.

Technicians don’t need to be hardcore specialists. With a quick 1-week training (yes, literally just a week), they’re able to grind and polish crankshafts like pros.

In Situ Crankshaft Grinding Machine | R A Power Solutions

RA Power Solutions has already delivered 1500+ crankshaft grinding and polishing machines worldwide, powering industries like:

• Marine & shipping fleets
• Repair & maintenance workshops
• Heavy engineering plants

These machines aren’t just tools—they’re profit boosters.
Less downtime means more productivity, which saves more money.

For any information, please email us at rajshahani@rapowersolutions.com, info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

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Quality Standards : RA Power Solutions

The onsite crankshaft grinding executed successfully, meeting all technical and quality standards. As part of our quality assurance process, inspection reports are obtained and duly signed by the vessel’s Chief Engineers. These reports are available upon request and can be shared along with photographs and videos.

Our team is available 24/7 and can mobilize at short notice to any location worldwide. We are committed to minimizing downtime and ensuring smooth and reliable operation of your engines.

Assembly of Crankshaft Grinding Machine on Damaged Crankpin	Onsite Crankshaft Grinding Under Process

RA Power Solutions offers specialized onsite services:

RA Power Solutions has been a world leader in onsite crankshaft grinding and polishing for more than 45 years, serving power plants, shipyards, marine vessels, and engineering sectors globally. We can do insitu crankshaft grinding for diameters up to 700 mm with unparalleled accuracy and efficiency because we have experience with engines of all makes and models.

Serving engines such as MAN B&W 7L23/30H, Daihatsu 6DK20, Hyundai Himsen 9H25/33P, and Bergen Rolls-Royce, among others, our recent projects span important international ports and clients from Sharjah, Dubai, Vietnam, and beyond.

For more details of the onsite crankshaft repair, Crankshaft Grinding Services, In Situ Crankshaft Grinding Machine, or email us at info@rapowersolutions.com or call us at +91-9582647131,+91 9810012383.

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The onsite crankshaft grinding machines are portable, light in weight, and have the following main features:

 The features of the portable onsite crankshaft grinding machine are given as follows:

1. RA Power Solutions Pvt. Ltd. designed, manufactured, and exported the machine worldwide.. We are proud to be the only manufacturer in the world producing centerless, portable, onsite crankshaft grinding machines. Please be aware of counterfeit machines and unauthorized imitations of our products.
2. We have already delivered more than 80 units across the globe. Engine repair workshops, shipping repair companies, diesel-based power plants, and leading onsite crankshaft grinding companies use them.
3. The current machine range of onsite crankshaft grinding machines is from 60–700 mm in terms of the diameter of crankshaft.
4. With our experience of over 45 years in this field, we have been improving the design and metallurgical composition of the parts to make the onsite crankshaft grinding machine light in weight, more efficient, and to improve the overall quality of grinding and polishing of crankshafts.
5. The machine is compact and lightweight. You can carry it as checked-in baggage during travel. This eliminates the need to book the equipment separately in a cargo flight.
6. The machine is operated by a heavy-duty pneumatic turbine motor. Hence, there is no hassle related to voltage variations, frequency fluctuations, or compatibility issues.
7. The machine is supplied as a complete unit, including all accessories. It is ready to operate immediately upon arrival.
8. We offer free training by our senior service engineer at the customer site or at our dedicated training school based near New Delhi.
9. The cost of the machine is affordable and makes it a financially viable option even for crankshaft and engine repair companies.

About RA Power Solutions:

We are a global leader in onsite crankshaft grinding and repair services for crankpins and main journals up to 700 mm. With over four decades of hands-on experience, we are Asia’s most established and trusted company in this field.

We are the original developers and manufacturers of portable onsite crankshaft grinding machines. Our machine design originates from a reputed Italian engineering firm. To date, we have supplied over 80 onsite crankshaft grinding machines across the globe.

In addition to repair services, we also supply the complete range of tools and measuring instruments necessary for crankshaft repairs.

We offer hands-on training programs for client technicians at our in-house training center near New Delhi, India, conducted by our expert engineers. We successfully delivered training sessions to clients from Colombia, Panama, Ecuador, Dubai, Singapore, Bangladesh, Tanzania, and many other countries.

For more details on the onsite crankshaft repair, Crankshaft Grinding Services, or In Situ Crankshaft Grinding, email us at info@rapowersolutions.com, Call at +91-9582647131,+91 9810012383.

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RA Power Solutions introduced mobile in situ machining services to cut repair costs and save time by avoiding disassembly, removal, and transport of shafts to workshops. We machine all types of cylindrical shafts and crankshafts up to 700 mm in diameter. We maintain tolerances according to the manufacturer’s requirements.

Advantages of Mobile Machining of Cylindrical Shaft and Crankshaft Onsite:

1. We use advanced technology and processes for the machining of cylindrical shafts and crankshafts.
2. Onsite machining equipment is portable and can be taken all over the world by our technicians.
3. Customization of onsite machining tools is possible according to the specifications of the shaft and site requirements.
4. Crankshaft Grinding Mobile Services machining minimizes the downtime and cost of the repairs.
5. Mobile machining is of great advantage to the plants as we are available 24*7 and can fly to any part of the world on short notice.
6. All our technicians experienced and trained in our in-house training school.
7. We have 45 years of experience. We regularly provide mobile machining services to leading companies across the world.
8. We design mobile machining equipment to undertake machining of damaged crankshafts in main and auxiliary engines installed on vessels.
9. Mobile machining is also possible while sailing of the vessel.

For more information regarding crankshaft machining, cylindrical shaft machining, and Crankshaft Grinding Mobile Services, please contact us at rajshahani@rapowersolutions.com or info@rapowersolutions.com or call us at +91 9582647131 or +91 9810012383.

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The advantages of undertaking onsite repair of the crankshaft are as follows:

1. No requirement for the removal of the crankshaft from the block.
2. Crankpin grinding is performed by inserting the portable crankshaft grinding machine through the engine’s inspection window.
3. The portable onsite crankshaft grinding machine is manufactured in two parts, which sit on the crankpin diameter.
4. The machine manufactured by RA Power Solutions is portable, lightweight, and can be carried anywhere in the world.
5. The onsite crankshaft grinding machine is designed to maintain close tolerance in terms of taper and ovality. It meets the standards set by leading engine manufacturers such as Daihatsu, Yanmar, MAK, MAN, and others.
6. The crankshaft grinding machine is designed to generate minimum vibrations while in operation. This facilitates the grinding of the crankpin even while the sailing of the vessel.
7. It is observed that due to a seizure of the bearing or an accident. The radius fillet of both ends gets damaged. The crankshaft grinding machine was developed and manufactured by RA Power Solutions. It can undertake the grinding even if the crankpin has damaged fillets.
8. The cost of the machine is low and is used by diesel power plants, shipping companies, engine repair workshops, etc.
9. Free training for the client’s technicians is provided in our in-house training school.

We have sold more than 10,000 machines all over the world including Australia, Bangladesh, Cambodia, Chinese Mainland, Hong Kong, Indonesia, Japan, Malaysia, Maldives, Myanmar, New Caledonia, New Zealand, Philippines, Singapore, South Korea, Sri Lanka, Thailand, Vietnam, Afghanistan, Bahrain, Iraq, Israel, Jordan, Kuwait, Lebanon, Oman, Qatar, Saudi Arabia, Syria, United Arab Emirates, Yemen, Singapore, etc.

For more details on insitu grinding crankpin, grinding a crankshaft, and grinding machine of crankpin, please email us at info@rapowersolutions.com, rajshahani@rapowersolutions.com, or call +91 9582647131, or +91 9810012383.

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Onsite Crankshaft Grinding Machine developed & manufactured by RA Power Solutions:

RA Power Solutions has been providing crankshaft repair services worldwide for the last forty-five years. To meet changing customer demands, we introduced an onsite crankshaft grinding machine that has revolutionized the grinding process.

Design and construction of an onsite crankshaft grinding machine:

1. Amazing technology and precise engineering are applied to the development and manufacturing of crankshaft grinding machines.
2. The main frame of the crankshaft grinding machine is manufactured from titanium alloy. It is lightweight and absorbs vibrations.
3. Ours is the only crankshaft grinding machine in the world that can execute grinding and polishing while sailing of the vessel.
4. Easy to operate and easy to learn.
5. We provide training on the operation and maintenance of crankshaft grinding machines.
6. With our competencies, experience, and simple methodology, the crankshaft repair has become simple and easy.

Selection of an In-Situ crankshaft grinding machine:

Our team of highly experienced engineers thoroughly studies the client’s requirements, engine make, and model for the crankshaft repair. Based on these requirements, they design and recommend the appropriate model of the crankshaft grinding machine.

We analyze the possible grinding problem and provide the customers with quick solutions.

 Quality and Testing of Grinding Machine:

Every part of the machine undergoes the quality control inspection and geometrical test, capability test, and other examination as per the protocol.

Crankshaft Grinding Machine Ready for Dispatch	Portable Crankshaft Grinding/ Polishing machine

Lowest Cost:

The machine costs are considerably low, and you can recover the investment after completing just 3–4 jobs. Therefore, we have sold more than seventy-seven onsite crankshaft grinding machines all over the world.

For your requirement of onsite portable crankshaft grinding machine, <strong>onsite repairing services, and crankshaft grinders, contact us at rajshahani@rapowersolutions.com or info@rapowersolutions.com or call us at +91 9582647131, 9810012383.

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We have a present range of onsite crankshaft grinding & polishing machines up to 700 mm in diameter.

The onsite crankshaft grinding & crankshaft polishing machines manufactured by us are exported globally reaching companies from different sectors like shipping, large power plants, oil and gas rigs, heavy engineering plants, etc.

Construction and Operation of an Onsite Crankshaft Grinding Machine:

• The metallurgical properties of all the components of an onsite crankshaft grinding machine are of great importance. As the machine operates under heavy stress and in extremely high temperatures, even while in operation, considerable heat is generated.
• The main body of the machine is manufactured out of Titanium alloy having the property of absorbing vibration. Due to the right selection of raw material, metallurgy, and design of crankshaft grinding machine, it is possible to maintain the tolerance in terms of taper & ovality within 0.02 mm after grinding and polishing the crankpin.
• The onsite crankshaft grinding machine designed & manufactured by RA Power Solutions is capable of undertaking the grinding even while sailing of the vessel. There is no need to hold the vessel.
• Whereas the operation of the machine is concerned it is very simple to operate. We provide free training to our buyer’s technicians for the operation and maintenance of the crankshaft grinding machine.

Advantages of Onsite Crankshaft Grinding Machine Manufactured by RA Power Solutions

1. RA Power Solutions with forty-five years of experience in the field of crankshaft repair, has been using the machines designed & manufactured by us ,hence the performance of the machine is proven.
2. The cost of the machine is kept very low. It is popular with large shipping companies, diesel power plants, and heavy engineering industries.
3. The crankshaft grinding machine is capable of grinding and polishing any cylindrical shaft/ crankshaft irrespective of its length.
4. No need to remove the shaft from the casing.
5. The machine is portable and can be taken to any site all over the world as accompanied baggage.
6. The tolerance, like taper & ovality, is maintained as per the engine manufacturer’s specification.
7. The machine is capable of maintaining a high surface finish of even less than 20 RA value.
8. Machine has great productivity properties reducing the downtime of the main time of the main equipment.
9. Easy to use and operate.

Availability of duplicate or copied machines in the market, as per our design

Be aware of the duplicate and copied machines available in the Indian market.

A few companies are falsely claiming as the manufacturer of the on site crankshaft grinding machine in fact, they are trying to misguide the clients hence customers are advised to be alert.

We have established an excellent track record in the market by focusing on providing high-quality solutions for the marine, industrial, and power-generating industries. The Portable Onsite Grinding Machine, one of our highlight products, revolutionized crankshaft grinding. Our portable onsite grinding machine can be easily transported to any location, including a ship, power plant, or workshop, due to its compact design.

Our services extend beyond just grinding. We offer a full range of solutions including inspection, repair, and maintenance of crankshafts. We are ensuring the longevity and reliability of your equipment.

Please check the company’s credentials.

For your requirement of crankshaft grinding machine, Onsite Portable Crankshaft Grinder and crankshaft grinders, contact us at rajshahani@rapowersolutions.com or info@rapowersolutions.com or call us at +91 9582647131, 9810012383.

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