crankshaft repair onsite Archives - Connecting Rod Repair

RA Power Solutions has recently undertaken onsite repair of the crankshaft of Peroni pump manufactured and supplied by Peroni Pompe Italy. The crankshaft has three number of crankpin with a standard diameter of 215 mm, developed taper/ovality, and a rough surface. This problem caused frequent damage to the crankpin bearings, leading to major shutdown of the plant and heavy financial losses for the company.

**Onsite Machining Of Peroni Pompe Italy Crankshaft**

The crankshaft of Peroni Pump manufactured by Peroni Pompe Italy, was inspected by RA Power Solutions technicians for the following parameters:

Dimensional inspection of crankpin for taper & ovality. The ovality ranging from 0.06 mm to 0.18 mm was observed.
The MPI test was conducted with a high-intensity Magnaflux torch and no abnormality was observed. Few superficial hairline cracks were observed, which may be due to rubbing of the crankshaft bearing steel lining with the crankpin diameter.
The hardness of the crankpin was observed within limits.
On visual inspection, bearing line marks and a rough surface was observed.

**Grinding & Polishing Of Crankshaft Of Peroni Pompe Italy**

Action Taken by RA Power Solutions for Repair of Peroni Pompe Crankshaft:

It was jointly decided with the client to undertake grinding of all three crankpins to the first step size of 0.5mm.
The grinding of crankpin was executed onsite, and the final diameter was maintained between 214.48 and 214.50 mm.
We are giving below the dimensions of the crankpin before and after the grinding job was executed by RA Power Solutions.

**Insitu Machining & Polishing Of Crankshaft Of Peroni Pompe Italy**

Size of CR Journal

	A	Aa	C	Cc	B	Bb	Min	Max	Ovality
CR-1 Before	214.95	214.96	214.95	214.92	214.88	214.88	214.88	214.96	0.08mm
CR-1 After	214.48	214.48	214.49	214.48	214.49	214.50	214.48	214.50	0.02mm
CR-2 Before	214.88	214.89	214.92	214.94	214.88	214.93	214.88	214.94	0.06mm
CR-2 After	214.48	214.50	214.49	214.48	214.50	214.49	214.48	214.50	0.02mm
CR-3 Before	214.69	214.84	214.87	214.83	214.80	214.81	214.69	214.87	0.18mm
CR-3 After	214.49	214.50	214.50	214.49	214.49	214.48	214.48	214.50	0.02mm

Undersize Crankpin Bearing for Peroni Pompe

The crankpin bearings, undersized by 0.5 mm, were manufactured by RA Power Solutions and supplied to the client. The Peroni Pompe was commissioned, and the performance of the crankshaft and bearings was found satisfactory.

RA Power Solutions, with over 43 years of experience, specializes in onsite crankshaft repair for engines, compressors, pumps, forging hammers, and all rotating equipment. Our technicians have valid visas and can travel all over the world with the in-situ grinding machine to execute the repairs.

**Insitu Grinding & Polishing Of Peroni Pompe Italy**

The author is Mr. Raj Shahani, Managing Director of the company. He has 43 years of experience in grinding crankshafts, polishing crankshafts, and all services related to engine and supporting equipment repair. He has designed and developed a portable crankshaft grinding machine to save time and money.

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

RA Power Solutions has recently undertaken onsite repair of the crankshaft of Peroni pump manufactured and supplied by Peroni Pompe Italy. The crankshaft has three number of crankpin with a standard diameter of 215 mm, developed taper/ovality, and a rough surface. This problem caused frequent damage to the crankpin bearings, leading to major shutdown of the plant … Continue reading “Peroni Pompe Crankshaft Repair | Save Crankshaft From Rejection”

RA Power Solutions with 4 decades of experience have now introduced 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 engine block and sending it to the workshop. Crankshaft grinding machine has 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, the machine is now introduced in the open market for the benefit of shipping companies, engine repair workshops, power plants, etc.

III) The onsite crankshaft grinding and polishing machine is of latest design, having minimum vibrations during operation. 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, this onsite crankshaft grinding and polishing can be operated round the clock. The onsite 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 70 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.

RA Power Solutions with 4 decades of experience have now introduced 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 engine block and sending it to the workshop. Crankshaft grinding machine has following features: I) The crankshaft … Continue reading “Onsite Crankshaft Grinding Machine for Crankshaft Repair – RA Power Solutions”