Onsite Crankshaft Grinding Machines – Worldwide Supplier

Onsite crankshaft grinding machine is a specialised machine that is used to manufacture, repair, and recondition crankshafts on site. The engine’s backbone is the crankshaft, which converts piston motion into rotation. Consequently, its precision is essential. Crankshafts can develop surface imperfections, erosion, or scoring over time. Through the restoration of engines to their exact proportions with a faultless finish, our machine guarantees their dependability and efficiency.

RA Power Solutions is emerging as a worldwide supplier of such machines, enabling engine and repair shops, power plants, and marine operators to carry out crankshaft repairs without removing them from the engine block.

Crankshaft Grinding Machine Ready for Dispatch

Important Features:

A finish that meets international standards is achieved through high-precision grinding, which maintains strict tolerances of less than 10 microns.
It is portable and lightweight, allowing for immediate on site crankshaft maintenance at the designated location.

User-Friendly:

This device is suitable for both novice and seasoned technicians, as it is designed to be low-maintenance and trouble-free.
A Wide Range of Applications: It is suitable for marine engines, power plants, and heavy industrial apparatus, as it does not necessitate disassembly.

Applications:

Marine Industry: Large ship engines can be repaired on site without the need for removal.
The crankshafts of diesel generators function effectively in power facilities.
Heavy engineering is suitable for the construction of buildings, mining, and industrial machinery.

Benefits:

Restoring crankshafts rather than replacing them with costly alternatives results in cost savings.
Increased Engine Life: Prevents deterioration and extends the lifespan of the engine.
The advantage of onsite repair is that it eliminates the necessity of transporting large engines to workshops.
Enhanced Performance: Ensures a smoother operation, reduced fuel consumption, and reduced friction.
Time-saving: Restoration can be completed more rapidly than the process of obtaining new materials.

Bushes Used in Crankshaft Grinding Machine

Crankshaft Grinding Machine for Big Diameter

Global Presence:

Over 200 Onsite Crankshaft Grinding Machines and crankshaft grinding and polishing equipment have been supplied globally by RA Power Solutions. Our apparatus is utilised in the following regions:

Asia: India, Saudi Arabia, the United Arab Emirates, Indonesia, Sri Lanka, and Bangladesh
Africa: Burkina Faso, Tanzania, Ghana, Kenya, Egypt, South Africa, and Nigeria
Greece, Turkey, Italy, Germany, the United Kingdom, and the Netherlands comprise Europe.
Americas: the United States, Canada, Mexico, and Brazil
Oceania comprises Australia and New Zealand.

We are committed to enhancing the profitability of transportation companies, repair shops, power plants, and heavy industries by reducing costs, minimizing downtime, and expanding our global presence.

For additional information about the Onsite Crankshaft Grinding Machines, Onsite Crankshaft Grinding Equipment. Please contact us at rajshahani@rapowersolutions.com, info@rapowersolutions.com, or +91 9582647131 or +91 9810012383.

FAQs:

Q1. What is onsite crankshaft grinding, and how does it work?

Onsite crankshaft grinding (in situ grinding) is a process where damaged crankpins or main journals are repaired using portable grinding machines directly at the site, without dismantling the engine.

Q2. What are the benefits of using an onsite crankshaft grinding machine?

The key benefits include reduced downtime, lower repair costs, elimination of transportation hassles, precision repairs meeting OEM standards, and extended crankshaft life.

Q3. Which industries use onsite crankshaft grinding machines?

These machines are widely used in marine, power plants, diesel generator sets, offshore platforms, heavy engineering, and industrial plants where large engines are in operation.

Q4. What crankshaft sizes can be repaired using portable grinding machines?

RA Power Solutions machines can handle a wide range of crankshaft diameters, from small engines to large marine and industrial engines, with high accuracy.

Q5. Does RA Power Solutions provide worldwide supply and training for these machines?

Yes, RA Power Solutions supplies crankshaft grinding machines globally and provides operator training to ensure easy and efficient use at any site.

Onsite crankshaft grinding machine is a specialised machine that is used to manufacture, repair, and recondition crankshafts on site. The engine’s backbone is the crankshaft, which converts piston motion into rotation. Consequently, its precision is essential. Crankshafts can develop surface imperfections, erosion, or scoring over time. Through the restoration of engines to their exact proportions … Continue reading “Onsite Crankshaft Grinding Machines – Worldwide Supplier”

Onsite Crankshaft Grinding and Repair Services

When it comes to maintaining heavy-duty machinery, engine performance and reliability are crucial. At the core of every engine lies the crankshaft, a component that demands precise maintenance to ensure consistent operation. Traditionally, repairing a damaged crankshaft required complete disassembly and transportation to a workshop, resulting in extended downtime and high costs. Fortunately, modern advancements have introduced in situ crankshaft grinding machines, making it possible to perform repairs directly at the site, eliminating the need for dismantling.

**Overview of onsite crankshaft grinding and repair**

Understanding In Situ Crankshaft Grinding Machines

In situ crankshaft grinding machines are specialized tools designed to repair and restore crankshafts directly within the engine assembly. These machines eliminate the need to remove the crankshaft from the engine block, thereby reducing downtime and associated costs. They are particularly beneficial in situations where only one or two crank pins are damaged, making it uneconomical to send the entire crankshaft to a distant workshop.

crankshaft grinding and polishing under process

Advantages of On Site Crankshaft Repair

Reduced Downtime: The ability to conduct onsite crankshaft repair means equipment can be restored swiftly without disassembly or transport.
Cost Savings: Avoids the need for dismantling and shipping large engine components.
OEM Compliance: Advanced in situ crankshaft repair services meet or exceed original equipment manufacturer (OEM) specifications.
Versatility: Suitable for onsite crankpin repair, crankshaft polishing services, and full crankshaft repair onsite.

Why Choose Onsite and In Situ Crankshaft Machining?

Quick turnaround time
No transportation of heavy engine blocks
Consistent results with minimal vibration
Services like in situ crankshaft grinding repair and on site crankshaft machining are available globally.

This method also supports in situ crankshaft machining and in situ crankshaft repair for engines that have suffered wear, ovality, scoring, or bearing failures.

Inspection of the crankpin before grinding

Why Choose RA Power Solutions

RA Power Solutions stands out as a leader in the field of in situ crankshaft grinding, offering comprehensive onsite crankshaft repair services globally. With decades of expertise, state-of-the-art equipment, and a team of highly skilled technicians, RA Power Solutions ensures minimal downtime and OEM-standard accuracy in every crankshaft repair. Whether it’s onsite crankshaft grinding, insitu machining & polishing of crankshaft, or urgent crankpin repair.

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

When it comes to maintaining heavy-duty machinery, engine performance and reliability are crucial. At the core of every engine lies the crankshaft, a component that demands precise maintenance to ensure consistent operation. Traditionally, repairing a damaged crankshaft required complete disassembly and transportation to a workshop, resulting in extended downtime and high costs. Fortunately, modern advancements … Continue reading “Onsite Crankshaft Grinding and Repair Services”

On Site Crankshaft Repair of HIMSEN HYUNDAI 6H 17/28 | Turkey

RA Power Solutions successfully repaired the Crankshaft of Himsen Hyundai 6H17/28 engine at MIP Mersin, Turkey. The engine, owned by an Italian company, experienced a major breakdown due to a failure in one of its auxiliary engines.

RA Power Solutions promptly deployed two skilled technicians equipped with onsite crankshaft grinding tools. The repair was efficiently conducted while the vessel remained anchored at MIP Mersin, ensuring minimal downtime and reliable restoration of the engine.

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:
(i) The breakdown was caused by the failure of the lubricating oil pump, resulting in damage to all connecting rod bearings.
(ii) Bearing material was embedded on all six crankpins and was meticulously removed.
(iii) Dimensional inspection conducted after polishing revealed taper and ovality measurements ranging from 0.22 mm to 0.86 mm.

MPI Test Before Crankshaft Grinding and Repair

HIMSEN HYUNDAI 6H 17 28 Before Grinding and Polishing

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	0.38MM
CR-2	174.83	174.92	174.80	174.78	174.83	174.93	174.78	175.00	0.22MM
CR-3	174.70	174.90	174.55	174.69	174.48	174.54	174.48	175.00	0.52MM
CR-4	174.78	174.88	174.79	174.72	174.79	174.92	174.72	175.00	0.28MM
CR-5	174.78	174.88	174.76	174.92	174.72	174.78	174.72	175.00	0.28MM
CR-6	174.22	174.80	174.14	174.78	174.37	174.85	174.14	175.00	0.86MM

(iv) Hardness testing indicated acceptable levels overall, with minor exceptions in a few areas, which were assessed as non-critical.
(vi) Magnetic Particle Inspection (MPI) revealed minor hairline cracks, while all other parameters remained within acceptable limits.

MPI Test of HIMSEN HYUNDAI 6H 17 28 Before Grinding

Actions Taken by RA Power Solutions Technicians:

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

We ensure all six crankpins are maintained with a stringent tolerance of 0.02 mm, delivering exceptional accuracy and optimal performance in every project.

Global Expertise in Crankshaft Repair
RA Power Solutions is a global leader in onsite crankshaft repair and grinding services. With extensive experience, we have successfully completed projects across the globe, including Dubai, Fujairah, Qatar, Saudi Arabia, Oman, Iraq, Togo, Malta, Freetown, Egypt, Malaysia, Iran, Indonesia, Vietnam, Jordan, and many other locations.

Our highly skilled technicians are available 24/7 and can be deployed at short notice. Many of our team members hold valid US visas, allowing us to serve clients in South America, the Caribbean, and other regions efficiently.

Get in Touch for Professional Crankshaft Services:
Email: rajshahani@rapowersolutions.com | info@rapowersolutions.com
Phone: +91 9582647131 | +91 9810012383.

FAQs

1. What is onsite crankshaft repair for HIMSEN HYUNDAI 6H 17/28 engines?

Onsite crankshaft repair for HIMSEN HYUNDAI 6H 17/28 engines by RA Power Solutions involves in-situ grinding and polishing of crankpins and main journals without shaft removal. This saves downtime, avoids disassembly, and restores crankshaft dimensions as per OEM standards.

2. How is crankshaft grinding performed on ships in Turkey?

RA Power Solutions performs crankshaft grinding on ships in Turkey using portable, high-precision equipment. The process includes inspection, in-situ grinding, and polishing of crankpins or main journals, all done onboard without shaft removal, ensuring minimal downtime and cost.

3. What are the benefits of in situ crankshaft repair on HIMSEN engines?

In-situ crankshaft repair on HIMSEN engines by RA Power Solutions reduces downtime, eliminates the need for shaft removal, and avoids costly dismantling and transport. It ensures fast, cost-effective restoration of crankpins or main journals to OEM specifications onboard the vessel.

RA Power Solutions successfully repaired the Crankshaft of Himsen Hyundai 6H17/28 engine at MIP Mersin, Turkey. The engine, owned by an Italian company, experienced a major breakdown due to a failure in one of its auxiliary engines. RA Power Solutions promptly deployed two skilled technicians equipped with onsite crankshaft grinding tools. The repair was efficiently … Continue reading “On Site Crankshaft Repair of HIMSEN HYUNDAI 6H 17/28 | Turkey”

Renewal of Crankshaft | Crankshaft Replacement of Engine – RA Power Solutions

Crankshaft Renewal by RA Power Solutions

Serious breakdown of Wartsila 12V32 diesel generating set installed in one of our client’s power plants in Madagascar was reported. RA Power Solutions deputed 2 senior engineers immediately to the site.

**Wartsila Diesel Generating Sets Installed in Plant**

On inspection, the following were the main observations of the Wartsila 12V32 diesel-generating sets:

The bearing of CR pin no. 2 got seized due to the lack of lubrication.
The removal of bearing from the crankpin was a tough task as the bearing material got embedded in the CR pin.
After removal of bearing, the crankpin was subject to crack detection test by MPI. Multiple cracks with open mouth were observed even in the critical area of the crankpin like lubricating oil hole, and radius fillet.
On spot grinding on cracks was done. Even after stock removal of 4 mm in terms of depth, cracks were observed. Hence, the crankshaft was rejected.

Replacement of Crankshaft

The old and rejected crankshaft was removed.
All the main journal housings, connecting rods, and cylinder liners were calibrated.
Reconditioned standard-size crankshaft was supplied by RA power and floated in the crankcase, and the engine was rebuilt.

**Removal of Crankshaft by RA Power Solutions**

After inspecting all the major parameters as per the manufacturer’s guidelines, engine was load tested to the entire satisfaction of the customer. RA Power Solutions undertakes onsite crankshaft repair of major components, overhaul, and maintenance of high-capacity diesel engines installed in power plants or on the vessel.

**Reconditioned Standard Size Crankshaft Installed**

**Inspection & Calibration of Engine Components**

For more information on crankshaft replacement of engine, crankshaft inspection, and crankshaft renewal email us at rajshahani@rapowersolutions.com or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

Crankshaft Renewal by RA Power Solutions Serious breakdown of Wartsila 12V32 diesel generating set installed in one of our client’s power plants in Madagascar was reported. RA Power Solutions deputed 2 senior engineers immediately to the site. On inspection, the following were the main observations of the Wartsila 12V32 diesel-generating sets: Replacement of Crankshaft After … Continue reading “Renewal of Crankshaft | Crankshaft Replacement of Engine – RA Power Solutions”

In-Situ Crankshaft Grinding Machine | Onsite Crankshaft Machining | Onsite Crankshaft Grinding & Polishing Machine – RA Power Solutions

Crankshaft is a mechanical and important part of the engine that facilitates the performance of a conversion between reciprocating motion and rotational motion. The tolerances of the crankpin and main journal of the crankshaft are generally very close in order to have a longer life and continuous satisfactory performance of the Crankshaft without any damage. It is important that crankshaft tolerances are always maintained strictly as per original tolerances.

RA Power Solutions designs and manufactures insitu crankshaft grinding and polishing machine. The insitu crankshaft machine is of advanced technology which is designed to maintain the crank pin and main journal tolerances in terms of taper, ovality, and surface finish strictly as per the manufacturer’s specifications. There is no need of disassembly /removal of the crankshaft from the entablature. The onsite crankshaft grinding and polishing machine manufactured by RA Power Solutions is available in the range of 35 mm to 700 mm in terms of diameter.

The onsite crankshaft grinding machine is light in weight and can be easily taken to far from places all over the world. The onsite crankshaft grinding and polishing machine has the following features:

Technologically advanced crankshaft machining equipment in comparison to the conventional and old cage-type design, which is outdated.
Onsite crankshaft grinding and polishing machine does not require any reference of radius fillet for machining of the crankpin/main journal of the crankshaft.

Onsite crankshaft grinding and polishing machine frame is made out of titanium steel, which is robust and vibrationless.
With our latest onsite crankshaft grinder, machining of crankshaft up to 700 mm diameter can even be done while sailing the vessel, maintaining the close tolerance.
Onsite crankshaft grinding machine capable of maintaining close tolerance within 0.02 mm and with high surface finish far better than the international standards.
The insitu crankshaft grinding machine manufactured by RA Power Solutions can also be used for cylindrical shaft grinding and polishing and for the repair of the alternator, rotor shaft, pump shaft, intermediate shaft, mid-shaft, and turbine shaft.
Insitu crankshaft grinding and polishing equipment is easy to operate and maintain. It does not require any complicated day-to-day maintenance.
We are giving free training to the client’s technicians for the operation of this latest onsite crankshaft grinding equipment.

The cost of insitu crankshaft machining equipment is low and affordable. Highly recommended for large diesel power plants, shipping companies, and engine repair workshops. Insitu crankshaft grinding equipment is supplied in sturdy steel boxes that can be easily stored and taken from one site to another.

We have sold more than 70 crankshaft grinding machines all over the world including South America, UK, Italy, Nigeria, Singapore, the Philippines, Iran, Dubai, and various countries.

The author of this blog is Mr. Raj Shahani (Managing Director of Company). He has four decades of experience in the field of high-capacity engine repair and grinding of shaft. He has developed an onsite crankshaft grinding machine to make the grinding process easy and less time-consuming. With the development of grinding equipment, now companies can undertake grinding and repair of any rotary shaft themselves saving a huge amount of money and time.

For information regarding onsite crankshaft grinding & polishing machine, on site machining services, onsite crankshaft machining, contact us at rajshahani@rapowersolutions.com or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

Crankshaft is a mechanical and important part of the engine that facilitates the performance of a conversion between reciprocating motion and rotational motion. The tolerances of the crankpin and main journal of the crankshaft are generally very close in order to have a longer life and continuous satisfactory performance of the Crankshaft without any damage. … Continue reading “In-Situ Crankshaft Grinding Machine | Onsite Crankshaft Machining | Onsite Crankshaft Grinding & Polishing Machine – RA Power Solutions”

In Situ Crankshaft Grinding Machine | Onsite Crankshaft Grinding & Polishing Machine | Crankshaft Grinder – RA Power Solutions

The in situ crankshaft grinding and crankshaft repair machine is a unique invention and is of great assistance to the shipping companies as they can not remove the crankshaft from the vessel and send it to the workshop for repair. Again, the crankshaft grinding machines installed in the workshop are not an ideal solution due to its high cost and lack of know-how to operate. RA Power Solutions manufactures and exports onsite crankshaft grinding and repair machines having a range of 35 mm to 700 mm in terms of the diameter of crankpin and main journal of the crankshaft.

Crankshaft Grinding Machine of Bigger Diameter

Crankshaft Grinding Machine has the following features:

Onsite crankshaft grinding and polishing machine is compact, lightweight, and can be inserted from the inspection window of the engine block.
It is simple in design, easy to operate, and maintain
Crankshaft grinding and polishing machine body is manufactured out of titanium steel having the property of absorbing the vibrations. With the vibration or almost zero vibration machine can also be used for crankshaft grinding and crankshaft repair while sailing of the vessel.
- All parameters and tolerances as recommended by the engine manufacturer can be strictly maintained.
With the use of onsite crankshaft grinding and polishing machine, repair can be done in one setting. Thus saving the time.
This crankshaft grinding and polishing machine is manufactured with a pneumatic or electrical drive depending on the client’s requirement.
On Job training for the operation and maintenance of the crankshaft grinding machine is extended through our experienced technicians.
Crankshaft repair machine is supplied in a toolbox and can be transported all over the world.

**Onsite Crankshaft Grinding & Repair Machine**

We have sold more than 70 crankshaft grinding machines all over the world that includes shipping companies, leading repair workshops and power plants, etc.

The author of the blog is Mr. Raj Shahani, Managing Director of the company. He is having 40 years of experience in solving the major issues related to repair and overhauling of engines, grinding and repair of the crankshaft, and many more related to the high capacity engine.

For more information regarding onsite machining of crankshaft, in situ crankshaft grinding repair, crankshaft grinding machines, onsite crankshaft grinding, and crankshaft polishing equipment, please email us at rajshahani@rapowersolutions.com or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

**Repair of Crankpin by Crankshaft Grinding Machine**

**Onsite Grinding Machine for Small Diameter**

RA Power Solutions manufactures in situ crankshaft grinding and polishing machine. It is a revolutionary, lightweight, easy-to-operate, and compact crankshaft grinding and crankshaft polishing machine which can undertake the repair of crankpins up to the diameter of 700 mm without removing the crankshaft from the engine block. The in situ crankshaft grinding and crankshaft repair … Continue reading “In Situ Crankshaft Grinding Machine | Onsite Crankshaft Grinding & Polishing Machine | Crankshaft Grinder – RA Power Solutions”

Crankshaft Grinding | Crankshaft Repair | Crankpin Grinding – RA Power Solutions

RA Power Solutions having experience of more than four decades has emerged as a leader in providing services for onsite crankshaft grinding, crankshaft repair, crankshaft polishing, and crankpin reconditioning in Asia, the Middle East, South America, Parts of Europe, and many countries all over the world. The technology and process used for crankshaft repair are of the latest design, which ensures that the quality after the crankshaft grinding and repair is maintained strictly as per the engine manufacturer’s specifications and tolerances.

**Repair of Crankpin by Portable Crankshaft Grinding Machine on Vessel**

The combination of the latest design of onsite crankshaft grinding machine possessed by RA Power Solutions and experienced technicians who have collectively repaired more than 10,000 crankshafts gives confidence to our clients for successful repairs of crankshaft once the job is entrusted to RA Power Solutions.

Following are the main abnormalities observed in the crankshaft which require crankshaft repair:

Bearing line marks and development of rough surface.
Damage of radius fillet, lubricating oil hole due to an accident.
Development of taper and ovality beyond the limits specified by the engine manufacturers.
Increase in hardness beyond the permissible limit due to overheating.
Cracks were observed on crank pins and the main journal.
Presence of watermarks and rough surface.

Crankshaft Grinding and Repair process followed by RA Power Solutions:

Dimensional inspection of the crankshaft in detail is undertaken by RA Power technicians
A hardness check of the damaged CR Pin or main journal of the Crankshaft is conducted.
Crack detection by MPI, dye penetrant, or ultrasonic crack detection is done.
Visual inspection

**Inspection of Crankpin Under Process**

**Inspection of Crankpin Before Grinding**

The inspection report in detail is studied by our senior technicians and the necessary planning for onsite repair is done. The onsite crankshaft grinding and polishing is undertaken by RA Power in the shortest possible time.

We also possess portable onsite crankshaft grinding machines which have minimum vibrations. This facilitates us to undertake crankshaft grinding and repair even while the vessel is sailing on the high seas.

**Grinding & Polishing of Crankshaft by RA Power Solutions**

After crankshaft grinding and repair, the final inspection reports are prepared by our technicians and submitted to clients for their records. RA Power also extends services for repair crankshaft, crankshaft refurbishment, engine overhaul and maintenance, metal stitching, rebabbitting of bearings, spares, etc.

**Crankpin After Grinding on Board a Vessel**

The author is Mr. Raj Shahani Managing Director of RA Power Solutions having experience of almost four decades of working on high-capacity diesel engines, crankshaft, turbines, and rotary equipment.

For more information regarding crankshaft polishing, grinding of crankshaft, onsite inspection of crankshaft, crankshaft grinding and repair, onsite crankshaft grinding and polishing services, and crankpin grinding, please email us at rajshahani@rapowersolutions.com or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

RA Power Solutions having experience of more than four decades has emerged as a leader in providing services for onsite crankshaft grinding, crankshaft repair, crankshaft polishing, and crankpin reconditioning in Asia, the Middle East, South America, Parts of Europe, and many countries all over the world. The technology and process used for crankshaft repair are … Continue reading “Crankshaft Grinding | Crankshaft Repair | Crankpin Grinding – RA Power Solutions”

Onsite Crankshaft Grinding Machine for Crankshaft Repair – RA Power Solutions

RA Power Solutions, with 4 decades of experience, has now introduced an onsite crankshaft grinding machine which is portable and can undertake crankshaft machining, crankshaft grinding, and crankshaft repair onsite.

Grinding of Crankpin using Onsite Crankshaft Grinding Machine

Now there is no need to remove the crankshaft from the engine block and send it to the workshop.

The crankshaft grinding machine has the following features:

I) The crankshaft grinding machine is introduced by RA Power Solutions, having experience of 4 decades in crankshaft repair.

II) After extensive trials and experience, we have introduced the machine in the open market. It is now available for shipping companies, engine repair workshops, power plants, and more.

III) The onsite crankshaft grinding and polishing machine is of the latest design, having minimum vibrations during operation. An onsite crankshaft grinding machine can be used while sailing the vessel.

IV) Tolerances achieved after crankshaft grinding and crankshaft polishing are far better than the manufacturer’s specifications. This is proven as repairs executed are class approved.

In case of emergency, we operate the onsite crankshaft grinding and polishing round the clock. The crankshaft grinding and polishing machine is easy to operate and job training is provided. This machine is supplied ready to use and complete in all respect. More than 100 machines supplied all over the world.

Crankshaft Grinding Machine Packed in Steel Box for Dispatch

For more information on crankshaft repair and crankshaft grinding services, contact us by email at rajshahani@rapowersolutions.com or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

FAQs:

1. What is an onsite crankshaft grinding machine?

It is a portable, in-situ machine designed to grind and repair crankpins and main journals without removing the crankshaft from the engine block.

2. What sizes of crankshafts can RA Power Solutions repair onsite?

We can repair crankshafts with diameters up to 700 mm directly at the vessel, power plant, or industrial site.

3. Can the onsite crankshaft grinding machine be used while the vessel is sailing?

Yes, our machine is lightweight, low-vibration, and capable of operating during sailing, reducing downtime.

4. What are the benefits of using a portable crankshaft grinding machine?

It eliminates the need to dismantle the engine, saves time and money, and ensures repairs meet OEM tolerances.

5. Does RA Power Solutions provide training for operating the machine?

Yes, we provide free onsite training for operators along with 24/7 support and worldwide service.

RA Power Solutions, with 4 decades of experience, has now introduced an onsite crankshaft grinding machine which is portable and can undertake crankshaft machining, crankshaft grinding, and crankshaft repair onsite. Now there is no need to remove the crankshaft from the engine block and send it to the workshop. The crankshaft grinding machine has the following … Continue reading “Onsite Crankshaft Grinding Machine for Crankshaft Repair – RA Power Solutions”

Insitu Crankshaft Grinding Machine – RA Power Solutions

For over four decades, RA Power Solutions has led the industry in portable crankshaft grinding, enabling repair directly on vessels or in power plants—eliminating the need to dismantle or transport heavy engine components.

RA Power Solutions manufactures the insitu crankshaft grinding machine, which is lightweight, portable, and easy to operate. We developed and manufactured this revolutionary equipment.

Globally Deployed Machines & Capabilities:

Designed for crankpin and main journal diameters between 35 mm and 700 mm—covering most diesel engine builds
We have sold over 100 machines worldwide to shipping firms, power plants, and engine workshops. Clients are located in countries like Singapore, Nigeria, Italy, Saudi Arabia, and beyond.
Combines grinding and polishing in one setup, with minimal vibration, maintaining tolerances as tight as 0.02 mm.

Key Features & Benefits:

Feature	Benefit
Compact, lightweight design	Easily fits through engine inspection windows and transports globally with ease
Titanium‑steel vibration‑absorbing frame	Enables grinding even while the vessel is underway, preserving OEM tolerances
Electrical or pneumatic drives	Versatile operation adapted to client’s power infrastructure
On-job training included	Technicians learn how to operate and maintain the equipment directly from RA Power staff
Fully portable toolbox unit	Supplied ready-to-use in a steel box—ideal for rapid site deployment

Why Onsite Grinding Beats Workshop Repairs?

Reduces downtime by eliminating dismantling and logistics
Cuts costs significantly versus sending crankshafts to external workshops
Meets or exceeds OEM specifications, including taper, ovality, and surface finish.
Fully class-approved repair methods and international case studies support machine reliability worldwide.

Proven Track Record

RA Power Solutions’ patented handheld machines have repaired over 10,000 crankshafts worldwide, delivering results trusted by shipowners and industrial clients alike.
Ideal for marine engines, power-plant diesels, turbines, alternators, and general rotary equipment requiring precision journal repairs.

Get in Touch
Need emergency crankshaft repair or onsite polishing? RA Power Solutions offers Insitu Crankshaft Grinding Machine for 24/7 global service with immediate dispatch. Contact us:
Email: rajshahani@rapowersolutions.com or info@rapowersolutions.com

Phone: +91 9582647131 | +91 9810012383

FAQs:

Q1: What is an in-situ crankshaft grinding machine?

Technicians use this portable machine to grind crankshaft journals directly on-site. It eliminates the need to dismantle the engine.

Q2: What crankshaft sizes can your machine handle?

Our machines cover crankpins and main journals ranging from 35 mm to 700 mm in diameter.

Q3: Can the machine be used onboard ships?

The compact, vibration-free design allows technicians to use it on ships—even during voyages.

Q4: What power options are available?

Machines can be operated with either pneumatic or electric power, depending on site conditions.

Q5: Do you provide training with the machine?

Yes, onsite training and support are included to ensure proper operation and maintenance.

For over four decades, RA Power Solutions has led the industry in portable crankshaft grinding, enabling repair directly on vessels or in power plants—eliminating the need to dismantle or transport heavy engine components. RA Power Solutions manufactures the insitu crankshaft grinding machine, which is lightweight, portable, and easy to operate. We developed and manufactured this … Continue reading “Insitu Crankshaft Grinding Machine – RA Power Solutions”

Portable Crankshaft Polishing Machine – RA Power Solutions

In case of bearing failure or continuous running of the crankshaft, it develops bearing line marks, pitting, or rough surfaces. This requires polishing of the crankshaft, crankpin, and main journal.

A revolutionary onsite portable crankshaft polishing machine has been introduced by RA Power Solutions Pvt. Ltd., which is portable, lightweight, easy to operate, and can be taken to the site. The polishing of the crankshaft and crankpin is possible without removing the crankshaft from the engine block. We manufacture the onsite crankshaft polishing machine for diameters ranging from 50 mm to 700 mm.

The use of a crankshaft polishing machine removes bearing line marks and pitting. It also improves the surface finish as required by the manufacturer.

We provide free training to customers for a duration of one week. During this time, our team explains and demonstrates the operation and maintenance of the crankshaft polishing machine.

The cost of the machine is kept low, as it is the company’s objective that nobody should spend an exorbitant amount on polishing and grinding the crankshaft anymore, and sending it to the workshop. More than 60 machines are sold all over the world.

**Close-Up View of Crankshaft Polishing Machine After Packing**

Our team developed the crankshaft grinding and polishing machine through consistent and focused R&D. We also conducted field trials under various operating conditions.

The company aims to reduce the cost of repairing crankshafts. It also seeks to eliminate the outdated practice of sending crankshafts to workshops. For more information on crankshaft polisher, crankshaft polisher machine, crankshaft polishing tool, crankshaft polisher for sale, polishing crankshaft journals, crankshaft polishing, crankshaft grinding machine, and crankshaft polishing equipment — contact us at rajshahani@rapowersolutions.com or info@rapowersolutions.comCall: +91 9582647131 / +91 9810012383

FAQs:

1. Can the crankshaft be repaired without removing it from the engine?

Yes, RA Power Solutions designed the in-situ crankshaft polishing machine to operate directly inside the engine block through the inspection window. The process eliminates the need to remove the crankshaft. This approach saves both time and cost.

2. How long does it take to repair a crankpin or main journal?

Typically, technicians complete a full in-situ repair—including inspection, setup, grinding, and final polishing—within 24 to 30 hours. The exact time depends on the extent of the damage.

3. What types of engines can this machine be used on?

The portable crankshaft polishing machine is suitable for marine engines, power plant generators, compressors, diesel locomotives, construction equipment, and mining machinery. It is also ideal for other heavy-duty engines. The machine works effectively for both land-based and shipboard applications.

4. What is the diameter range this machine can handle?

The portable polishing machine can service crankshafts with a diameter range from 35 mm to 700 mm. Custom solutions are available for crankshafts up to 1000 mm in diameter.

5. How precise is the machine in terms of finish and tolerance?

The machine achieves a surface finish as fine as 0.15–0.2 µm Ra and maintains dimensional tolerances within 0.01 to 0.025 mm, meeting or exceeding OEM standards.

In case of bearing failure or continuous running of the crankshaft, it develops bearing line marks, pitting, or rough surfaces. This requires polishing of the crankshaft, crankpin, and main journal. A revolutionary onsite portable crankshaft polishing machine has been introduced by RA Power Solutions Pvt. Ltd., which is portable, lightweight, easy to operate, and can … Continue reading “Portable Crankshaft Polishing Machine – RA Power Solutions”