crankshaft grinding Archives - Rebabbitting Bearing

Insitu Crankshaft Repair | Onsite Crankshaft Grinding And Polishing | 45 Years Of Expertise

Raj — Fri, 18 Apr 2025 11:27:42 +0000

RA Power Solutions Pvt. Ltd. has offered in situ crankshaft repair and polishing services for over four decades. The crankshaft is the most important part for keeping the engine running properly. It is an essential component of engines in marine boats, power plants, and heavy machinery. However, when it becomes damaged or worn out, it can bring operations to a standstill, resulting in costly repairs and downtime. RA Power Solutions, a global pioneer in crankshaft maintenance, has introduced its breakthrough in situ crankshaft grinding technology to Bangladesh. This unique approach is changing the game for industries throughout the country.

With the insitu crankshaft grinding machine, our trained specialists can arrive at a site in the shortest amount of time and fix the crankshaft without removing it from the main engine.

Efficient crankshaft on the engine Restoration: 35 to 700 mm in diameter Grinding Accuracy

Since the crankshaft is the engine’s central component, it transforms reciprocating motion into the linear movement that powers the engine through the use of connecting rods. With the process, technology, and onsite crankshaft grinding equipment from RA Power Solutions, crankshaft repair is now feasible without removing the crankshaft from the engine. These machines range in size from 35 mm to 700 mm. Our technology can repair crankshafts up to 700 mm in diameter, allowing us to fix any crankshaft, regardless of its weight or length.

In general, the crankshaft has several applications, including diesel generators and marine engines. Typical areas of crankshaft applications are as follows:

Compressors
Power generators
Forging hammers
Pumps
Marine engines

RA Power’s Journal and Crankshaft Machining Advantages:

The vast experience of having repaired over 10,000 shafts on any size Main or Auxiliary engine

Specially designed crankshaft machining tooling for insitu reconditioning without dismantling the full engine, deployed all around the globe.

A large, global team of highly skilled machining technicians ensures a rapid, expert response anytime and anywhere.

The latest breed of inspection instruments is available to undertake hardness tests, MPI, surface roughness tests, dimensional inspection, etc.

Our crankshaft grinding machine weighs 1/3rd of our competitors, saving on freight costs.

Giving ship and power plant crews the tools they need to grind and fix crankshafts on site

Years of crankshaft grinding and polishing by RA Power Solutions, it is now possible to not only grind and polish the crankshaft onsite, but also to repair the crankshaft by ship or power plant crew.

For more information on in situ crankshaft grinding, onsite crankshaft grinding, crankshaft grinding, insitu crankshaft grinding repair, onsite crankshaft machining, and crankshaft machining in situ, crankpin bearings, bearings for MAN and MAK engines please contact info@rapowersolutions.com, rajshahani@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

FAQs

1. What sizes of crankshafts can you repair onsite?

Customers often want to know the diameter range your equipment handles. RA Power’s insitu grinding is capable of servicing crankpins from 35 mm up to 700 mm (even 50–700 mm) without engine removal.

2. How much downtime and cost savings are involved?

One of the top concerns: how in-situ grinding cuts downtime and expense. By avoiding full engine disassembly and shipping, companies save significantly on labor, transport, and workshop costs.

3. What precision and finish can you achieve?

Customers ask if the onsite process meets OEM specifications. The portable machines deliver precision within 10–25 µm and achieve surface finishes (Ra) that align with OEM standards.

4. Can you repair crankshafts while the engine is in operation or at sea?

A common need in marine and power-plant contexts. Yes—insitu grinding can be done on-vessel (even underway) or at power plants, offering portable, global 24/7 service.

5. What inspection and quality assurance processes do you use?

Customers want confirmation of quality control. Services typically include MPI/crack detection, hardness testing, surface roughness measurement, dimensional checks, vibration testing, ensuring journals are restored to spec.

The post Insitu Crankshaft Repair | Onsite Crankshaft Grinding And Polishing | 45 Years Of Expertise appeared first on Rebabbitting Bearing.

Precision Crankshaft Grinding in Tanzania | RA Power Solutions

Raj — Mon, 31 Jul 2023 11:16:20 +0000

Introduction:

Welcome to the world of precision engineering and exceptional crankshaft grinding services in Tanzania. When it comes to ensuring the optimal performance & longevity of your engines, nothing compares to the expertise delivered by our skilled technicians.

With cutting-edge technology & a commitment to greatness, our crankshaft grinding services guarantee that your crankshafts will be converted to their original specifications, eliminating any spots that may hinder your engine’s efficiency.

Damaged Crankpin

Whether you are in requirement of standard repairs or complex custom solutions, our dedicated team is ready to deliver outstanding results, ensuring your engines run smoothly and reliably. Experience the epitome of quality & reliability with our professional crankshaft grinding services in Tanzania.

The Expertise of RA Power Solutions in Crankshaft Grinding Services

RA Power Solutions is a well-known name in the industry, offering top-notch expertise in crankshaft grinding services. With a strong presence in Tanzania, they have carved a niche for themselves with their amazing services in crankshaft repair, grinding, polishing, and inspection.

When it comes to crankshaft grinding, RA Power Solutions stands as a trusted partner for a wide range of clients. Their experienced technicians possess extensive knowledge and experience in handling various types of crankshafts, be it from marine engines, industrial equipment, or power plants.

Crankpin After Grinding And Polishing

The company’s expertise in crankshaft repair is second to none. They employ advanced techniques and cutting-edge equipment to repair damaged crankshafts to their original specifications, providing the highest level of precision and performance.

For those seeking crankshaft polishing services, RA Power Solutions offers a seamless process that results in smooth, mirror-like surfaces on crankshafts. The particular approach adopted during polishing ensures improved performance and reduced friction, resulting in improved efficiency and longevity of the crankshafts.

Crankshaft inspection is a critical aspect of their services, reflecting their dedication to delivering top-tier quality. Through advanced inspection methods, including non-destructive testing & dimensional analysis, RA Power Solutions ensures that every crankshaft meets the strictest industry standards before being returned to its rightful place.

RA Power Solutions stands as a leading authority in crankshaft grinding and repair, polishing, and inspection. Their expertise, coupled with a customer-centric approach, has earned them the trust & loyalty of clients across various industries, making them the go-to choice for all crankshaft-related needs.

The Benefits of Choosing RA Power Solutions for Crankshaft Grinding in Tanzania

When it comes to crankshaft grinding and repair services, RA Power Solutions stands out as a trustworthy and efficient choice. With their expertise and specialized equipment, they deliver a range of essential services that ensure optimal performance & durability of crankshafts.

Crankshaft grinding is a crucial process for restoring the precision and smoothness of damaged crankshafts. RA Power Solutions boasts advanced grinding machinery & skilled technicians who can handle crankshafts of various sizes and designs. Their precise grinding techniques not only eliminate any surface irregularities but also help in restoring the original dimensions, leading to improved engine efficiency & reduced vibrations.

Another key service offered by RA Power Solutions is crankshaft repair. Whether it’s a minor crack or a major damage, their experienced team can effectively repair the crankshaft, saving clients from the cost of a full replacement. By employing state-of-the-art technologies & following industry best practices, they ensure that the repaired crankshafts recover their structural integrity, minimizing the risk of future failures.

RA Power Solutions also places significant emphasis on crankshaft inspection. A thorough inspection is crucial to determine any hidden defects or potential issues that could lead to catastrophic engine failure.

Choosing RA Power Solutions for crankshaft grinding, repair, polishing, and inspection in Tanzania brings multiple advantages. With their cutting-edge equipment & expertise, they ensure the highest quality standards are met, ultimately improving engine performance, increasing the longevity of crankshafts, and delivering customers with the peace of mind they deserve.

Crankshaft Grinding as a Preventive Maintenance Measure for Long-lasting Engines

Crankshaft grinding is a necessary preventive maintenance measure for ensuring the longevity & optimal performance of engines. In Tanzania, specialized services such as crankshaft grinding, crankshaft repair, crankshaft polisher, and crankshaft inspection are readily available to address possible issues with this crucial engine component.

Over time, the crankshaft can develop wear & tear due to constant operation, which can lead to inequalities and reduced engine efficiency. By utilizing professional crankshaft grinding services in Tanzania, engine owners can have their crankshafts restored to their original specifications, eliminating any irregularities and providing smooth rotation.

This process not only enhances engine performance but also prevents further damage to other engine parts, thus significantly extending the overall lifespan of the engine. Whether it’s a regular maintenance check or addressing a specific concern, relying on experienced professionals for crankshaft services in Tanzania is a smart investment for maintaining reliable, long-lasting engines.

Contact Us for Top-notch Crankshaft Grinding Services in Tanzania

Looking for top-notch crankshaft grinding services in Tanzania? Look no further than RA Power Solutions. We specialize in comprehensive crankshaft solutions, including crankshaft grinding, repair, polishing, and inspection services.

Our team of professional technicians is equipped with state-of-the-art machinery & years of experience, ensuring preciseness and efficiency in every project. Whether you require crankshaft repair, grinding, polishing, or inspection services, we have you covered.

With our commitment to quality and customer satisfaction, you can trust RA Power Solutions to deliver outstanding results for all your crankshaft requirements in Tanzania. For more information, please email us at rajshahani@rapowersolutions.com or info@rapowersolutions.com or call us at +91 9582647131 or +91 9810012383.

FAQs

1. Do you offer on-site (in-situ) crankshaft grinding in Tanzania without removing the crankshaft?

Customers often need assurance that the grinding can be performed directly on-site—such as onboard vessels or at power plants—without dismantling the engine.

2. What size and weight capacity can you handle for crankshaft grinding?

Users frequently ask about the maximum diameter and mass of crankshafts that the service can accommodate, especially for large diesel engines (e.g., 500–700 mm diameter, up to 20 tons).

3. Do you provide crankshaft inspection and nondestructive testing before or after grinding?

Prospective clients want to know if inspections—like dimensional analysis and NDT—are included to guarantee quality and adherence to specifications.

4. Can you handle polishing or finishing to restore surface smoothness and reduce friction?

Many ask not only about grinding but also polishing services that ensure mirror-like finishes to improve engine performance.

5. Can you repair crankshafts with cracks or major damage instead of replacing them?

Customers are often interested in repair services for cracked or severely damaged crankshafts to avoid costly replacements.

The post Precision Crankshaft Grinding in Tanzania | RA Power Solutions appeared first on Rebabbitting Bearing.

White Metal Babbitt Bearing | Rebabbitting of Bearing – RA Power Solutions

Raj — Thu, 06 Dec 2018 06:31:36 +0000

White metal babbitt bearings are manufactured by RA Power Solutions for all applications, like engines, pumps, turbines, alternators, and rotatory equipment.

We also manufacture them from samples of equipment when the original manufacturer no longer produces the bearings. They follow stringent quality control norms during manufacturing. We use a centrifugal system for rebabbitting white metal, which ensures excellent bonding between the base metal and white metal.

The white metal after centrifugal casting has a dense surface without any pin holes or blow holes, which results in satisfactory performance and long life of the white metal babbitt bearing.

RA Power Solutions uses our in-house, latest-design equipment for rough and final machining and to maintain critical dimensions. We manufacture white metal babbitt bearings as per international standards and maintain close tolerances. We have the facility to manufacture white metal babbitt bearings up to the outer diameter of 1500 mm.

Rebabbitting of old white metal bearings is undertaken, which develops taper and ovality or gets damaged. We are exporting bearings regularly to Singapore, Indonesia, Nigeria, the UK, South America, Sri Lanka, Greece, Dubai, Qatar, etc.

Babbitt Metal Supplier | White Metal Babbitt Manufacturer

Manufacturers of non-ferrous metals such as tin, lead, copper, antimony, zinc, and aluminium produce white metal for the heavy-duty engineering industry, diesel engines, turbines, and alternators. The tin-based Babbitt white metal manufactured qualifies ASTM, SAE, and federal specifications of Babbitt metal. Being an ISO 900:2015 certified company, we provide detailed metallurgical analysis reports with the Babbitt white metal manufactured and supplied by us. The quality of the white metal is assured and guaranteed.

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

FAQs:

1. What maximum size of white metal bearing can RA Power Solutions manufacture or rebabbit?

They handle white metal bearings up to a 1500 mm bore size.

2. What casting method do they use for rebabbitting?

They use centrifugal casting to achieve excellent bonding between base metal and white metal.

3. Do the bearings have defects like pin-holes or blow holes?

No,their casting process produces dense surfaces without pin-holes or blow holes.

4. Can RA Power Solutions produce bearings when the OEM is no longer manufacturing them?

Yes ,they manufacture to existing drawings or sample parts if originals aren’t available.

5. Does RA Power Solutions comply with international standards and provide metallurgical reports?

Yes, their white metal meets ASTM, SAE, and similar standards, and they give detailed metallurgical analysis.

The post White Metal Babbitt Bearing | Rebabbitting of Bearing – RA Power Solutions appeared first on Rebabbitting Bearing.

Crankpin Grinding by Crankshaft Grinding Machine – RA Power Solutions

Raj — Thu, 28 Jun 2018 05:46:15 +0000

A diesel power plant based in northern India, having 10 nos. of 12.3 MW Wartsila diesel generating sets, reported a severe casualty involving one of their Wartsila generators. RA Power Solutions’ team of technicians rushed to the power plant with the measuring instruments and onsite crankshaft grinding equipment to assess the cause of the breakdown.

We inspected the crankshaft in detail with dimensional checks, hardness tests, and MPI for cracks and deflection. We found damage on one of the crankpin journals caused by a big-end bearing failure.

Grinding & Repair of Crankpin is in Process

Inspection & Diagnosis:

Taper and ovality in the crankpin is observed as 0.70 mm.
Due to the failure of the bearing, deep line marks were visible.
Hardness and MPI tests were done, and no cracks were observed.

RA Power Solutions’ Edge

RA Power Solutions used the latest design of onsite crankshaft grinding machine, having almost no vibrations. The crankpin was undersized by 1.5 mm, maintaining the tolerance within 10 microns. Our technicians took only 18 hours to complete the Crankshaft repair from the time of the start of the preliminary inspection, grinding, and final inspection. The repair of the crankpin in such a short time was possible due to the latest technology, an onsite crankshaft grinding machine, and the experience of our technicians.

Inspection of Crankpin Before Grinding

Inspection of Crankpin Under Process

RA Power Solutions has four decades of experience in working on crankshafts of high-capacity main and auxiliary engines. Factory training prepares our technicians to repair crankshafts. They strictly follow the manufacturer’s specifications and tolerances.

For more information on Portable Crankshaft Grinding Machine, please email us at rajshahani@rapowersolutions.com, or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

FAQs:

2. When does a crankpin need grinding?

A: You need grinding when a crankpin shows ovality or taper. It also becomes necessary if you notice scoring or surface damage from bearing failure.

1. What is crankpin grinding?

A: It’s the process of machining and restoring worn or damaged crankpins on a crankshaft to OEM specifications.

3. Crankpin grinding done onsite?

A: Yes, with portable crankshaft grinding machines, repairs can be done at the site without dismantling the crankshaft.

5. How much downtime does the process take?

A: In most cases, we complete inspection, grinding, and finishing within 18–24 hours.

4. How accurate is onsite crankpin grinding?

A: Modern machines achieve tolerances within 10 microns, ensuring smooth operation.

The post Crankpin Grinding by Crankshaft Grinding Machine – RA Power Solutions appeared first on Rebabbitting Bearing.

Onsite Crankshaft Grinding Machine | Crankshaft Grinding And Repair

Raj — Wed, 13 Jun 2018 05:30:33 +0000

At RA Power Solutions, we understand how critical crankshaft condition is to the performance and longevity of marine engines, diesel sets, turbines, compressors, and other heavy rotating equipment. That’s why for over four decades, we’ve been pioneering onsite crankshaft grinding and repair, using advanced, portable grinding machines designed to restore crankpins, main journals, and polished surfaces with precision.

onsite crankshaft grinding machines

What Is Onsite Crankshaft Grinding?

The on site crankshaft grinding machine is manufactured having a range starting from 30 mm to 700 mm in terms of diameter. The smaller diameter of the on site crankshaft grinding machine up to 100 mm is more suitable for grinding and polishing crankshafts used in construction equipment, compressors, pumps, etc.

The crankshaft grinding machine having a range of 100 mm and above is ideal for undertaking crankshaft repair, crankpin grinding, and polishing of marine engines and heavy-duty rotating equipment.

We are the leading provider of onsite crankshaft grinding machines and polishing, Insitu turbine shaft Grinding and Polishing, Rotor Shaft Grinding and Polishing, Portable crankshaft grinding machines, crankshaft grinding and repair.

Crankshaft Grinding Onsite

Key Features of Our Crankshaft Grinding Machines

Wide diameter range — capable of handling from small shafts (≈ 30-100 mm) used in pumps, compressors, etc., up to heavy crankshafts in marine engines.
Portable / in-situ design — smaller footprint, easier setup, reduced downtime.
Durable materials — main structural parts built from titanium / ferrous alloys to handle stress and maintain precision.
Operator training & support — includes on-site training so technicians can operate and maintain the machine safely and effectively.

Benefits of Choosing On-Site Grinding

Traditional (bench) grinding	OnSite / Portable Grinding
Requires dismantling, transportation	Machine comes to the site, minimal movement
High cost and long downtime	Reduced repair time & costs
Risk of damage during handling	Less handling; safer for crankshaft
Less flexibility for large shafts	Suitable for large & marine-scale jobs

Clients have also noted that with onsite crankshaft grinding, the repair turnaround is much faster, leading to less downtime and lower overall cost.

Why RA Power Solutions?

With 45 years of experience, RA Power Solutions has recently supplied a crankshaft grinding machine, ranging in diameter from 220 to 260 mm, to a Bangladesh-based client. This is the first onsite crankshaft grinding machine to be sold in Bangladesh. Several diesel-generating sets are in operation, serving a large population of vessels that pass through the various ports of Bangladesh.

On Site Crankshaft Grinding

At RA Power Solutions, we prioritize customer satisfaction and strive to deliver top-quality services that exceed your expectations. Our on site crankshaft grinding machine is just one example of our commitment to providing innovative solutions for engine repair and maintenance.

For more information regarding crankshaft grinders, crankshaft grinding services, and crankshaft grinding equipment, please email us at rajshahani@rapowersolutions.com, or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

FAQs:

1. What diameter range can your on-site crankshaft grinding machines handle?

From approximately 30 mm up to 700 mm diameter.

2. Is it necessary to remove the crankshaft for grinding?

No,our portable insitu machines allow grinding/repair without shaft removal.

3. How long does the operator training take?

Roughly one week to operate and maintain the machine properly.

4. What materials are used in the machine construction for durability?

Key components are made from titanium and ferrous alloys.

5. How does onsite grinding reduce costs?

It cuts down dismantling, transportation, engine downtime, and handling risks.

The post Onsite Crankshaft Grinding Machine | Crankshaft Grinding And Repair appeared first on Rebabbitting Bearing.

Wartsila 6R32 Crankshaft Repair | RA Power Solutions

Raj — Sat, 19 May 2018 05:31:08 +0000

A continuous process industry based in western India using 2 units of Wartsila 6R32 for their power requirements reported a breakdown of one of the Wartsila 6R32 diesel generating sets.

What We Do:

RA Power Solutions sent senior technicians with portable inspection instruments and an onsite crankshaft grinding and polishing machine. They reported the following observations on the crankpins:

We investigated the Wartsila diesel generating sets and found a clear case of lube oil pump failure.
All 6 crankpins damaged.
Inspection in detail is carried out. The gist of this is as follows:
Crankpin no. 1 ovality of 0.76 mm. No cracks observed. Hardness within limits.
Crankpin no. 2 ovality of 0.54 mm. No cracks observed.. Hardness within limits.
Crankpin no. 3 ovality of 0.26 mm. No cracks observed. Hardness within limits.
Crankpin no. 4 ovality of 0.49 mm. No cracks observed. Hardness within limits.
Crankpin no. 5 ovality of 0.29 mm. No cracks observed. Hardness within limits.
Crankpin no. 6 ovality of 0.62 mm. No cracks observed. Hardness within limits.

We inspected the Wartsila 6R32 crankshaft and decided to repair it by grinding the crankpin.

We ground three pins undersized by 1 mm and three pins undersized by 0.5 mm. RA Power maintained taper, ovality, and surface finish far better than the manufacturer’s recommendations. We completed the job in a record 6 days.

Crankshaft Under Repair

Why Choose On Site Grinding?

Traditional Bench Grinding	Onsite / Insitu Grinding
Requires removal of crankshaft, transport, higher handling risk	Performed at site, less handling, less risk, lower transport cost
Higher downtime	Faster turnaround, repairs are executed where the equipment is located
Fixed-machine limitations for large components	Our machines cover a wide diameter range (30-700 mm) for large shafts

Recent Projects and Training

We recently supplied a 220-260 mm diameter onsite crankshaft grinding machine to a client in Bangladesh, supporting diesel generating sets and marine vessels.
Included with the supply is one week onsite training for client technicians in operation and maintenance. This helps ensure smooth use and long service life.

For more information regarding auxiliary engine crankshaft repair, marine and auxiliary engine crankshaft repair, please email us at rajshahani@rapowersolutions.com, or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

FAQs:

1. What the diameter range covered on-site crankshaft grinding machine?

From 30 mm up to 700 mm.

2. Do I need to remove the crankshaft for grinding?

No ,the machine works in situ, meaning you don’t need to remove the shaft.

3. How quickly can technicians learn to operate and maintain the grinding machine?

About one week of onsite training.

4. What materials used in the machine’s key components for durability?

Titanium and ferrous alloys used.

5. How does on-site grinding reduce overall repair & downtime costs?

By eliminating transportation, reducing handling, and speeding up repair execution.

The post Wartsila 6R32 Crankshaft Repair | RA Power Solutions appeared first on Rebabbitting Bearing.

Crankpin Grinding By RA Power Solutions | Over 4 Decades Experience

Raj — Mon, 28 Nov 2016 11:38:27 +0000

The incidence of failure of the crankpin bearing is higher than that of the main journal bearing of the crankshaft. The main reason is that the crankpin has the major load of the engine due to its design characteristics.

Crankshaft Ready for Grinding

RA Power Solutions Pvt. Ltd. undertakes onsite grinding and polishing of crankpins. The crankpin diameter ranging from 60 mm to 700 mm, can be repaired by grinding and polishing. The crankpin diameter is maintained as per the manufacturer’s recommendation, controlling the taper and ovality.

In case of failure of the crankpin bearing, RA Power Solutions can undertake grinding and polishing of the crankpin without removing the crankshaft from the engine block. Thus saving the downtime of the engine.

Worldwide Services Provider

We have been regularly executing the inspection and repairs in Madagascar, Oman, Qatar, Philippines, Bahrain, Srilanka, Bangladesh, Myanmar, Turkey, Nigeria, Greece, Saudi Arabia, UK, Dubai, Malta, Cyprus, Singapore, Malaysia, Colombia, Indonesia, Hong Kong, Spain, Netherlands, Dubai, Portugal, Estonia, Morocco, Belgium, Vietnam, Canada, Jordan, Libya, Kuwait, Egypt, Morocco, Yemen, Bahrain, Tunisia, Sudan, Oman, Algeria, Saudi Arabia, Iraq, Iran, UAE, Sri Lanka etc.

For more information on Crankpin Grinding Services, Crankpin Repair, and Onsite Crankshaft Grinding please email us at rajshahani@rapowersolutions.com, or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

FAQs:

1. What is crankpin grinding?

Crankpin grinding is the precision machining process that restores the crankpin surface to the correct diameter and finish after wear or damage.

2. Can you grind the crankpin without removing the crankshaft?

Yes, We perform onsite crankpin grinding without removing the crankshaft from the engine block to minimize downtime.

3. What size crankpin diameters do you handle?

We grind crankpin diameters ranging from 60 mm to 700 mm for various engine types.

4. Which industries benefit from your crankpin grinding services?

Marine vessels, diesel power plants, and heavy industry equipment all benefit from our precision grinding repairs.

5.Why is crankpin grinding important?

Grinding corrects wear, taper, and ovality, restoring smooth operation and extending engine and bearing life.

The post Crankpin Grinding By RA Power Solutions | Over 4 Decades Experience appeared first on Rebabbitting Bearing.