Onsite Crankshaft Grinding and Polishing Archives

Compressor Crankshaft Grinding and Polishing Onsite

RA Power Solutions was approached by a leading Fertilizer producing company based in north India regarding the requirement of onsite grinding and polishing of compressor crankshaft.

The company has five high-capacity CO2 compressors which have been imported from a leading company based in Europe.

Our team consisting of three technicians along with onsite crankshaft grinding equipment was deputed to the site and following was observed:

Details of CO2 Compressor Crankshaft:

S. NO	Crankshaft Details
1	Engine Make/ Model	CO2 COMPRESSOR
2	Crankpin Diameter Standard	317.30 MM
3	Crankpin Bearing Width	210.00 MM
4	Main Journal diameter	330 mm & 317.30 mm
5	Main Journal Width	370 mm & 225 mm
6	Place of execution of crankshaft repair	Fertilizers & Chemicals Plant in India

On dimensional inspection of crankpin it was observed that crankpin nos. 02 developed excessive ovality. It also had deep line marks due to the failure of bearings which are of babbitt white metal type.
All the remaining crankpins were inspected and rough surfaces including bearing line marks were observed.
The main journal having a standard diameter of 330 mm also had a rough surface and required polishing.

**Damage of crankpin no. 6 of Compressor**

**Onsite repair of damaged crankshaft of CO2 Compressor**

**Picture showing before polishing of Main Journal**

Action taken by RA Power Solutions

Considering the fact that the main journal having a diameter of 330 mm having a rough surface and bearing line marks it was decided to remove the crankshaft from the compressor.

RA Power Solutions technicians submitted a drawing of V-Block which were manufactured in the factory for placement of crankshaft.

The grinding of crankpin no. 02 was undertaken and the final dimensions were maintained between 315.58 mm to 315.60 mm. The ovality of only 0.02 mm was observed.

All the remaining 05 crankpins were polished, removing the line marks and improving the surface finish. The surface finish after polishing was observed at less than 15 RA value.

All the main journals were also polished onsite removing the ovality to some extent and improving the surface finish again to less than 15 RA value.

**Crack detection test of compressor crankshaft before grinding**

**CO2 Compressor Crankshaft Inspection and Repair on site**

Advantage of getting the crankshaft grinding/ Polishing done by RA Power Solutions

RA Power Solutions is the only company in India having experience of forty-three years in crankshaft repair.
We have ready availability of equipment up to 700 mm diameter. The equipment is portable and lightweight and can be taken to any site all over the world as accompanied baggage. The modification in the onsite crankshaft grinding and polishing equipment is possible as per the site requirement.
In this case since the main journal diameter was to be polished the V-Block was designed and fabricated onsite.
RA Power Solutions as a protocol undertakes all the checks prior to grinding and polishing like cracks by MPI, Hardness test, deflection, etc.
We also manufacture babbitt white metal bearings and do rebabbitting of old bearing up to 1500 mm diameter.

**After Grinding and polishing taken deflection of CO2 Compressor Crankshaft**

**Main Journal of CO2 compressor after polishing**

For more information on crankshaft grinding services, insitu crankshaft grinding and polishing, onsite crankshaft repair, or crankshaft polishing services email us at rajshahani@rapowersolutions.com, info@rapowersolutions.com Call at +91 9582647131,+91 9810012383.

Onsite Crankshaft Grinding Machine Manufacturer | Operation & Training

Manufacture Of Onsite Crankshaft Grinding:

RA Power Solutions is a manufacturer of on site crankshaft grinding machine ranging from 35 mm to 700 mm. The crankshaft grinding machine is light in weight, compact, and can easily be taken to the site for grinding and polishing of crankshaft and cylindrical shafts up to the diameter of 700 mm.

**Crankshaft Grinding Machine with Pneumatic Motor**

We have sold more than 70 onsite crankshaft grinding machines all over the world, we understand the importance of training and the essential skills involved in the operation and maintenance of the machine. We ensure that the client’s technicians are thoroughly briefed about the operation and maintenance of the equipment.

The training is given at our works or at the client’s site. We prefer in case the training is provided at client’s site. The following points are covered during the training on the operation and maintenance of the crankshaft grinding machine.

I) Safety:

a) Safety is a very important aspect and technicians are briefed to wear safety glasses, gloves, safety shoes, etc.

b) Keep all parts of the body away from the moving parts of the machine

II) Brief explanation of the main parts of the crankshaft grinding machine

The details and function of all the parts of the grinding machine are explained to the client’s team so that they can easily grind the shaft without any hassle and maintain the tolerance of the crankpin and main journal as per engine manufacturer guidelines.

III) Operation of the machine:

**Training on Operation of Crankshaft Grinding Machine**

All the technical aspects involved in the operation of the machine are explained including the control system, the process of grinding, and complete operation.

IV) Maintenance:

The maintenance of the machine for the long life and smooth operation is of great importance. All the aspects related to day-to-day maintenance are explained.

The onsite crankshaft grinding machine manufactured by RA Power Solutions is designed to have minimum vibration resulting in maintenance of close tolerance in terms of taper and ovality within 0.02 mm or depending on the diameter of the crank pin and main journals. The pneumatic motor used as a drive for the crankshaft grinding machine needs clean air without moisture at a pressure of 7 kg/cm2 and 90 CFM.

Crankshaft Grinding Machine Packed in a Aluminium Box — **Crankshaft Grinding Machine Packed in an Aluminium Box**

It is important that the moisture in the air is kept controlled and maintenance of the pneumatic motor is undertaken periodically as per the instruction manual provided by the manufacturer. The storage and the transportation of the machine to the site are generally done in the large toolboxes made out of aluminum and powder coated. In certain cases due to the weight restriction, the machine is also carried in large suitcases. In that case, the machine is properly packed in order to avoid any damage during the movement of the machine from one site to another.

Brief explanation on main parts of the crankshaft grinding machine — **Brief Explanation On Main Parts of the Crankshaft Grinding Machine**

**Training on Safety and Maintenance of Grinding Machine**

The author of the blog is Mr. Raj Shahani (Managing Director of RA Power Solutions). He is having forty years of experience in the field of repair and overhauling of engines. He has developed an onsite crankshaft grinding machine to save enormous time and money for the client.

For any information on on site crankshaft grinding, onsite crankshaft grinding machine supplier, onsite crankshaft journal grinding, and manufacturer of onsite crankshaft grinding machine 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.

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

RA Power Solutions undertakes Onsite Repair and Grinding of Crankshaft up to diameter of 700 mm. The experience technicians travel with light weight latest design of On site Crankshaft Grinding Machine to execute the Crankshaft Repair. The On site Crankshaft Grinding Machine has following benefits to the clients.

The Benefits:

You do not need to remove the Cranks shaft from the engine or press.
We save your time: – some of these repairs can be carried out as little as 24 hours.
We save your money: – The engine does not have to be stripped down and transported or reassembled. The savings on this alone are usually very significant.
We keep your plant running: – Downtime is minimized so that you can be back into operation and earning money sooner.

Machining and polishing of Crankshaft and Crankpin are carried to OEM tolerances and surface finish specifications.
We cover standard Crankshaft diameter ranging from 30 mm to 700 mm.
Our patented orbital equipment rotates around damaged crankpin journal using the radius as a datum.
We can also Hone and Polish your crankpin if the damage is slight or you just want to improve the surface finish up to 0.3 micron Ra Value.

For more information on on site crankshaft grinding, onsite crankshaft repair on vessel, onsite crankshaft machining and polishing, onsite crankshaft maintenance services, or insitu crankshaft grinding please email us at rajshahani@rapowersolutions.com, or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

Repir ofCrankshaft MAN B& W — Repair of Crankshaft MAN B& W

Onsite Crankshaft Grinding Machine | Insitu Crankshaft Polishing and Grinding Machine | Crankshaft Machining – RA Power Solutions

In case of accident of Crankshaft in recent past, it was necessary to disassemble the crankshaft from the engine block or housing, pack it and send it to the designated workshop.

The Introduction of Onsite Crankshaft Grinding Machine, Insitu Crankshaft Polishing and Grinding Machine, and Crankshaft Machining, there is no need of removing the Crankshaft and sending it to the work shop as now it is possible to undertake crankshaft grinding and crankshaft repair with revolutionary design of Onsite Crankshaft Grinding Machines manufactured by RA Power solutions.

The Onsite Crankshaft Grinding Machine has been developed out of our experience of Crankshaft repair of Forty Years. The Machine is Lightweight and can be taken to the Site. It has the following Features.

Onsite Crankshaft Grinding Machine, Insitu Crankshaft Polishing, and Grinding Machine is manufactured by RAP after extensive research, development, and our experience.
The Machine in the Initial Years was used by our technicians for In-house applications. Now from last ten years Machine is sold in open market all over the world.
The Insitu Crankshaft Grinding and Polishing Machine is user-friendly and can be operated by any person having basic machining knowledge.
The Machine is capable and is designed to maintain the close dimensions and Geometrical tolerances as per the manufacturers requirement.
Presently Onsite Crankshaft Grinding Machine is manufactured for the diameter of the Crank-pin and Main Journal of the Crankshaft ranging from 30 mm to 700 mm.
Crankshaft Grinding Machine is manufactured out of Titanium Alloy which is lightweight and can be easily carried to the Site.
The Machine is capable of working on a Vessel while it is moving.
Training forms an integral part of the Crankshaft Grinding Machine. Training onsite is provided.
We have sold more than seventy machines all over the world and are priced cheapest in the International Market.

Onsite Crankshaft Grinding Machine Ready for Dispatch

Onsite Grinding Machine for Small Diameter

For more details on insitu crankshaft grinding equipment, portable crankshaft grinding machine or 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.