crankshaft grinding and polishing machine Archives

Hand Polishing of Crankshaft Journals | Crankshaft Grinding Equipment | Main Journal Grinding

The crankshaft is the heart of the engine and is the most important/expensive component. It is necessary that the crankpin journal and main journal of the crankshaft are periodically inspected and polished. This not only enhances the life of the bearing but saves the crankshaft from any damage in case it is properly polished.

The oil film between the crankpin/main journal and bearings is too thin while the engine is in operation. In case the main journal and crankpin have roughness, burr, pitting, and line marks it can result in the discontinuation of oil film and failure of bearing causing damage to the crankshaft.

RA Power Solutions during the working on crankshafts of marine Engines for the last four decades have observed that non-conventional methods for polishing of main journal and crank pin journal are adopted to put the engine back in operation.

The non-conventional methods used are as follows:

I) Polishing of crankpin journal and main journal by Jute rope.
II) Polishing of crankpin journal and main journal by various grinding and polishing mediums.

**Consequences of Hand Polishing on Crankpin**

We observed that following these unconventional and nontechnical processes for polishing the crankshaft does not remove the line marks or the various other abnormalities which do get developed. In some cases, since this process has no control excessive taper and ovality are created resulting in the failure of the bearing and crankshaft.

Crankpin and Main Journal Polishing Made Easy:

RA Power Solutions by introducing a lightweight, compact onsite crankshaft polishing machine has made the crankshaft repair process simple with minimum downtime of the engine. The polishing and grinding machine are inserted from the engine block and a polishing crankpin is undertaken. The onsite crankshaft grinding and polishing machine is capable of maintaining a surface finish better than the international standards i.e. 0.2 RA value.

**Grinding of Crankpin by Onsite Crankshaft Grinder on Vessel**

**Crankshaft Grinding and Polishing Machine**

Suggestions:

RA Power Solutions strongly suggest that the polishing of the crankpin should be undertaken periodically as a routine maintenance process. This will not only extend the life of the bearings but also save the crankshaft from any major breakdown.

We offer two options to our clients either they can call our technicians who will visit their site with the portable on-site Crankshaft polishing equipment and undertake the polishing of the crankshaft. Alternatively, we also manufacture onsite crankshaft polishing machines which are simple to operate. More than 70 onsite crankshaft grinding and polishing machines have been sold all over the world.

**Crankpin After Grinding of Crankshaft**

RA Power Solutions offers a cutting-edge crankshaft polisher machine that revolutionizes the process of crankshaft polishing. The crankshaft polisher machine is designed to enhance the crankshaft’s performance, durability, and overall efficiency, ultimately optimizing the engine’s performance.

Our commitment to quality and innovation makes their crankshaft polisher machine a go-to solution for clients seeking top-notch results. Trust in RA Power Solutions to deliver excellence in crankshaft polishing, meeting the highest industry standards and exceeding customer expectations.

This blog is written by Mr. Raj Shahani (Managing Director of RA Power Solutions) having more than forty years of experience in the field of onsite repair of high-capacity engines. After extensive trials and research, he has developed onsite crankshaft grinding and polishing equipment for saving the crankshaft from rejection.

For any queries about main journal grinding, onsite crankshaft polishing services, crankshaft journal machining, and Crankshaft Polisher machine please email us at rajshahani@rapowersolutions.com, or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

Crankshaft Grinders | Crankshaft Machining | Crankshaft Repair Equipment | Onsite Machining of Crankshaft

RA Power Solutions is the world’s leader in the development, manufacturing, and supplying of onsite crankshaft grinders. We have already sold worldwide More than 70 onsite crankshaft machining equipment ranging from 35 mm to 700 mm in terms of diameter. Ours is the first company in the world that has changed the concept of crankshaft repair by making it simple and easy.

onsite crankshaft grinding polishing machine — **Onsite Crankshaft Grinding Polishing Machine**

companies based in Europe, the UK, and Singapore projected on site crankshaft grinding and onsite crankshaft repair to be difficult and charged an exorbitant amount towards the repair from shipping companies, diesel power plants, and the industry using rotatory equipment. With the introduction of onsite portable, lightweight crankshaft grinding machines the companies are saving considerable amounts towards the cost of repairs and maintenance of crankshaft and engine in totality.

We have sold more than 70 crankshaft grinders to the shipping companies, industries, and repair workshops that have broken the monopoly of the European companies by offering on site crankshaft grinding and crankshaft polishing services with international standards and at low prices.

**Crankshaft Grinding Machine with Pneumatic Motor**

The crankshaft repair is recommended in case of the following problems:

In case of bearing failure, bearing material gets stuck to the crankshaft surface.
Overheating of crankpin and main journal which is evident by black/blue discoloration and development of local hard spots.
Development of taper and ovality higher than the limits specified by the manufacturers.
Dents and scoring on the crankpin or the fillet radius.
Heat cracks

The onsite crankshaft grinding machine developed and manufactured by RA Power solutions is capable of repairing of crankshaft having all the problems including the problems mentioned above.

The on site crankshaft grinding and polishing machine has the following features:

Lightweight, portable, and can be easily taken to the site all over the world.
Machine is presently available in the range of 35 mm to 700 mm diameter. A higher range of machines is under development. Options for pneumatic and electric drives are available.
Machine is supplied in powder-coated steel boxes with a provision of clamps to hold it in order to avoid damage during the transit from one site to another.
Large information on the crankshaft of the popular engine and their model is shared with the client.
Free training on-site is provided for the operation and maintenance of the crankshaft grinders.

**Crankshaft Grinding Machine Packed in Powder Coated Steel Box**

**Grinding of Intermediate Shaft by Onsite Crankshaft Grinding Machine**

**Crankshaft Grinding Equipment from 30 mm Diameter**

The author is Mr. Raj Shahani, Managing Director of the company. He is having forty years of experience in providing on site engine repair services to companies all over the world. For saving the owner’s time and money, he has developed an on site crankshaft grinding machine.

For any information on onsite crankshaft grinding machine exporter, onsite crankshaft grinder manufacturer, and onsite machining of crankshaft please email us at rajshahani@rapowersolutions.com, or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

Crankshaft Repair | Crankshaft Grinding and Crankshaft Polishing – RA Power Solutions

The concept of onsite repair of crankshaft is getting popular with the introduction of a portable lightweight on-site crankshaft grinding machine. Now it is possible to undertake crankshaft repair, crankshaft grinding and polishing on site without dismantling the crankshaft from the engine.

On-site Crankshaft Repair, Crankshaft Grinding, and Crankshaft Polishing costs low with minimum downtime and inconvenience as it does not require removal of crankshaft from the engine block, packing, and transportation to the designated workshop for repair by grinding or polishing process.

Advantage of trusting RA Power solutions

First company based in Asia having experience of four decades in Crankshaft Repair, Crankshaft Grinding and Crankshaft Polishing.
All repairs of crankshaft and process followed for grinding of crankshaft and polishing of crankshaft are approved by class agencies of repute like DNV, Lloyds and various inspecting organisations spread all over the world.
The repair of crankshaft is executed with a guarantee for the satisfactory performance, the pre and final inspection reports before and after grinding and polishing crankshaft are submitted.
Technicians executing the repair of crankshaft onsite are highly skilled, trained in our factory on a dummy crankshaft in order to understand the techniques for successful repair of the crankshaft. Some of our technicians have experience of more than 45 years.
The onsite inspection and polishing of crankshaft repair is recommended to enhance the life of crankshaft and bearings.
RA power solutions offer and undertake inspection and polishing of crankshaft on board a vessel at a nominal cost.
During our working of four decades on diesel power plant, shipping companies we have undertaken Crankshaft Repair, Crankshaft Grinding and Crankshaft Polishing number exceeding more than 10,000.

Conclusion:

RA power solutions has team of technicians with valid CDC from Panama, Palau, and India and can travel all over the world with short notice.

For more details regarding crankshaft grinding, on site crankshaft repair, onsite crankshaft grinding and polishing please email us at rajshahani@rapowersolutions.com, or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

Portable Crankshaft Grinding and Polishing Machine | On-Site Machining Services – RA Power Solutions

The large bench type crankshaft grinding and polishing machines are outdated and are replaced by light weight, portable onsite grinding and polishing machine. The machine is driven either by pneumatic motor or is electrically operated.

The objective of using pneumatic motor is to make machine compact which can be inserted from the inspection window of the engine block for grinding of crankpin and main journal.

Crankshaft Grinding and Polishing

Portable Crankshaft Grinding and Polishing Machine is light weight and can be carried to the work site by the technicians. It is easy to assemble and operate. Any technician with machine shop experience can easily operate this machine. The crankshaft grinding and polishing machine is capable of maintaining taper, ovality and high surface finish after grinding operation and all the dimensions of crankpin or main journal can be controlled as per the manufacturer’s requirement.

Assembly of Insitu Crankshaft Grinding Machine

RA Power Solutions Pvt. Ltd. designs and manufactures the onsite crankshaft grinding and polishing machine as per the customer’s requirement. We have capability of designing and manufacturing the grinding machine up to 700 mm in terms of diameter.

More than 60 crankshaft grinding and polishing machines have been supplied all over the world which are performing satisfactory. The cost of on site machining services is very low.

For more information on portable crankshaft grinding and polishing, on site crankshaft grinding, in situ crankshaft grinding, on site machining services and portable onsite in-situ grinding contact us at email us at rajshahani@rapowersolutions.com, or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.