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 crankshaft repair process has been simplified by RA Power Solutions with the minimum amount of engine downtime possible by the introduction of lightweight, compact onsite crankshaft polishing equipment. The engine block is used to insert the polishing and grinding machine, and the crankpin is polished. 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.

The failure of the crankpin or main journal bearing is common which damages the crankpin and main journal diameter of the crankshaft.

The following are the main observations in the case of the failure of the bearing:

1. Development of taper & ovality on crankpin & main journal diameter.
2. Dent, bearing line marks, and a rough surface are observed on the pin.
3. In a severe accident, heat causes the bearing material to stick to the crank pin or main journal diameter.
4. Overheating turns the crankpin black or blue and creates hard spots
5. The failure of the bearing also causes the development of cracks.

Specialization of RA Power Solutions in Crankshaft Machining, Grinding, and Polishing:

RA Power Solutions specializes in the machining of crankshafts without removing them from the engine block. Our highly trained technicians reach the accident site in the minimum possible time with portable equipment to undertake the repairs.

We have been extending crankshaft machining and onsite crankshaft repair services to leading shipping companies for more than four decades. Our success rate is almost 100 percent.

In extreme cases where damage is more than the last limit, the crankshaft is rejected. There are several occasions where RA Power Solutions have successfully repaired the crankshaft under deviations.

In this case, we have undertaken the crankpin machining beyond the undersize recommended by the manufacturer.

Our team of highly skilled engineers and technicians utilizes the latest technology. The equipment to deliver precise, reliable, and cost-effective onsite crankshaft machining and polishing services.

We understand the importance of minimal downtime for our clients. Our onsite services save you time and money by eliminating the need to transport heavy crankshafts to a workshop.

The matching bearings are also supplied by us. This initiative has saved several crankshafts from rejection.

Working on the most popular model of Engines

We undertake repair of all makes and models of diesel engines, compressors, pumps, and all types of rotary equipment. The most popular make & model of engines are Yanmar, Wartsila, Daihatsu, MAN B&W, Caterpillar, Deutz MWM & Allen Engine, etc.

We have been regularly executing the repairs in Argentina, Bahamas, Barbados, Bermuda, Bolivia, Brazil, Canada, Chile, Colombia, Costa Rica, Cuba, Dominican Republic, Ecuador, El Salvador, Guatemala, Guyana, Haiti, Honduras, Jamaica, Mexico, Nicaragua, Malaysia, Nigeria, UAE, Togo, Spain, Madagascar, Singapore etc.

For more details on the crank pin grinding machine, Onsite Crankshaft Repair Services,  insitu machining equipment, and in situ crankshaft machining, please email us at rajshahani@rapowersolutions.com, info@rapowersolutions.com, or call us at +91 9582647131 or  +91 9810012383.

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Crankpin Machining is Required in Case of the Following Damage to the Crankpin

1. Development of excessive taper & ovality on a crankpin.Seizure of crankpin bearingDevelopment of bearing marks and pitting on crankpin.
2. Development of excessive taper & ovality on a Crankpin diameter.
3. Seizure of crankpin bearing.
4. Development of bearing marks and pitting on the crankpin.
5. Due to the above defects, it is necessary to get the Crankpin Machining undertaken.

RA Power Solutions Pvt. Ltd, an easy-to-operate and do-it-yourself crankshaft polishing machine manufacturer, up to 700 mm in diameter.

Reason for periodical polishing of crankpin and main journal:-

1. Leading manufacturers like Wartsila, Daihatsu, Mirrlees Blackstone, Yanmar, Allen, MAK, MAN, B&W, Sulzer, and Caterpillar design their engines with close tolerances in the crank pin and main journal.

2. Generally, the tolerance ranges between 0.02 mm to 0.05 mm.
3. We highly recommend polishing the crankpin and main journal diameters periodically. This process removes line marks and pitting from the journals.
4. Crankshaft polishing improves the surface finish and enhances the life of bearing manifolds.

5. Proper maintenance and precision machining greatly reduce the chances of serious crankshaft accidents or bearing seizure incidents.

6. The high surface finish of the crankpin and main journal after polishing can produce more power, durability, and long-lasting performance of the Engine.
7. The crankshaft polishing results in less noise, vibrations, and friction, and consumes less fuel.
8. Lower emissions are produced.

Due to the above and many other reasons, it is highly recommended to undertake the polishing of the crankpin and main journal periodically at the time of major overhauling or replacement of bearings.

RA Power Solutions Pvt. Ltd. manufactures, for the last forty-five years, revolutionary equipment for the onsite polishing of crankpins without removing the crankshaft from the engine block. The crankshaft polishing machine is manufactured in the range starting from 35 mm to 700 mm in terms of diameter.

RA  Power Solutions has the following features:-

1. The technician inserts the crankshaft polishing machine through the engine block inspection window. It sits directly on the crankpin diameter.
2. There is no requirement for the removal of the crankshaft from the block.
3. The machine supplied in two versions: electrical and pneumatic. This depends on the availability of the facilities on board the vessel or in any industry.
4. Machine is easy to operate, and can reduce the taper and ovality. To improve the surface finish to far better than the international standards.
5. Any technician can easily operate the crankshaft polishing machine. The machine allows them to perform polishing efficiently.

Stop spending high amounts on polishing of crankshaft by calling the specialized companies. It reduces the cost of maintenance by increasing the life of bearings and crankshafts.

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

For more information on  Onsite Crankshaft Polishing, crankshaft polishing machine manufacturers, polishing crank journals, crankshaft grinding and polishing, or cylindrical shaft grinding machine. Contact us at rajshahani@rapowersolutions.com or info@rapowersolutions.com or call us at +91 9582647131.

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