Crankshaft Grinding and Polishing Archives

On Site Crankshaft Repair of HIMSEN HYUNDAI 6H 17/28 | Turkey

RA Power Solutions successfully repaired the Crankshaft of Himsen Hyundai 6H17/28 engine at MIP Mersin, Turkey. The engine, owned by an Italian company, experienced a major breakdown due to a failure in one of its auxiliary engines.

RA Power Solutions promptly deployed two skilled technicians equipped with onsite crankshaft grinding tools. The repair was efficiently conducted while the vessel remained anchored at MIP Mersin, ensuring minimal downtime and reliable restoration of the engine.

Following are the major Engine and Crankpin details:

S. No.	Engine and Crankpin Details
1.	Engine Make	HIMSEN HYUNDAI
2.	Engine Model	6H 17/28
3.	Crankpin Diameter Standard	175.00MM
4.	Crankpin Bearing Width	60.00 MM
5.	Place of Execution of Grinding of Crankpin	MIP Mersin, Turkey
6.	Name of Shipping Company	Reputed Company from Italy

Key Observations of the Crankshaft:

Visual Inspection Findings:
(i) The breakdown was caused by the failure of the lubricating oil pump, resulting in damage to all connecting rod bearings.
(ii) Bearing material was embedded on all six crankpins and was meticulously removed.
(iii) Dimensional inspection conducted after polishing revealed taper and ovality measurements ranging from 0.22 mm to 0.86 mm.

MPI Test Before Crankshaft Grinidng and Repair

Image Showing Before Grinding and Polishing

The Dimensional Inspection Report of Six (6) Number Crankpins of HIMSEN HYUNDAI 6H 17/28:

SIZE OF CR PINS BEFORE REPAIR
	A	Aa	C	Cc	B	Bb	Min	STD	Ovality
CR-1	174.74	174.85	174.62	174.73	174.66	174.88	174.62	175.00	0.38MM
CR-2	174.83	174.92	174.80	174.78	174.83	174.93	174.78	175.00	0.22MM
CR-3	174.70	174.90	174.55	174.69	174.48	174.54	174.48	175.00	0.52MM
CR-4	174.78	174.88	174.79	174.72	174.79	174.92	174.72	175.00	0.28MM
CR-5	174.78	174.88	174.76	174.92	174.72	174.78	174.72	175.00	0.28MM
CR-6	174.22	174.80	174.14	174.78	174.37	174.85	174.14	175.00	0.86MM

(iv) Hardness testing indicated acceptable levels overall, with minor exceptions in a few areas, which were assessed as non-critical.
(vi) Magnetic Particle Inspection (MPI) revealed minor hairline cracks, while all other parameters remained within acceptable limits.

CR Pin Before Grinding of HIMSEN HYUNDAI 6H 17/28

Actions Taken by RA Power Solutions Technicians:

1. The grinding of all six (6) crankpins was undertaken by our insitu crankshaft grinding machine.
2. Three (3) number of crankpins diameter was reduced by 1.00 MM and the final size was maintained as 174.00 MM.
3. Three (3) number of crankpins diameter was reduced by 1.50 MM and the final size was maintained at 173.50 MM.

Final Report After Grinding is Pasted Below:

SIZE OF CR PINS AFTER REPAIR
	A	Aa	C	Cc	B	Bb	Min	U/S	Ovality
CR-1	173.48	173.49	173.49	173.48	173.50	173.50	173.48	173.50	0.02MM
CR-2	173.98	173.99	174.00	173.99	173.98	173.99	173.98	174.00	0.02MM
CR-3	173.49	173.50	173.50	173.48	173.49	173.50	173.48	173.50	0.02MM
CR-4	173.98	173.99	173.98	174.00	173.98	174.00	173.98	174.00	0.02MM
CR-5	173.99	173.99	173.98	174.00	173.98	173.99	173.98	174.00	0.02MM
CR-6	173.48	173.49	173.49	173.50	173.50	173.48	173.48	173.50	0.02MM

We ensure all six crankpins are maintained with a stringent tolerance of 0.02 mm, delivering exceptional accuracy and optimal performance in every project.

Global Expertise in Crankshaft Repair
RA Power Solutions is a global leader in onsite crankshaft repair and grinding services. With extensive experience, we have successfully completed projects across the globe, including Dubai, Fujairah, Qatar, Saudi Arabia, Oman, Iraq, Togo, Malta, Freetown, Egypt, Malaysia, Iran, Indonesia, Vietnam, Jordan, and many other locations.

CR Pin Grinding of HIMSEN HYUNDAI — **CR Pin After Grinding of HIMSEN HYUNDAI**

Our highly skilled technicians are available 24/7 and can be deployed at short notice. Many of our team members hold valid US visas, allowing us to serve clients in South America, the Caribbean, and other regions efficiently.

Get in Touch for Professional Crankshaft Services:
Email: rajshahani@rapowersolutions.com | info@rapowersolutions.com
Phone: +91 9582647131 | +91 9810012383.

RA Power Solutions successfully repaired the Crankshaft of Himsen Hyundai 6H17/28 engine at MIP Mersin, Turkey. The engine, owned by an Italian company, experienced a major breakdown due to a failure in one of its auxiliary engines. RA Power Solutions promptly deployed two skilled technicians equipped with onsite crankshaft grinding tools. The repair was efficiently … Continue reading “On Site Crankshaft Repair of HIMSEN HYUNDAI 6H 17/28 | Turkey”

In-Situ Crankshaft Grinding Machine | Onsite Crankshaft Machining | Onsite Crankshaft Grinding & Polishing Machine – RA Power Solutions

Crankshaft is a mechanical and important part of the engine that facilitates the performance of a conversion between reciprocating motion and rotational motion. The tolerances of the crankpin and main journal of the crankshaft are generally very close in order to have a longer life and continuous satisfactory performance of the Crankshaft without any damage. It is important that crankshaft tolerances are always maintained strictly as per original tolerances.

RA Power Solutions designs and manufactures insitu crankshaft grinding and polishing machine. The insitu crankshaft machine is of advanced technology which is designed to maintain the crank pin and main journal tolerances in terms of taper, ovality, and surface finish strictly as per the manufacturer’s specifications. There is no need of disassembly /removal of the crankshaft from the entablature. The onsite crankshaft grinding and polishing machine manufactured by RA Power Solutions is available in the range of 35 mm to 700 mm in terms of diameter.

**Onsite Crankshaft Grinding Machine Ready for Dispatch**

**Accessories of Grinding Machine Packed in Steel Box**

The onsite crankshaft grinding machine is light in weight and can be easily taken to far from places all over the world. The onsite crankshaft grinding and polishing machine has the following features:

Technologically advanced crankshaft machining equipment in comparison to the conventional and old cage-type design, which is outdated.
Onsite crankshaft grinding and polishing machine does not require any reference of radius fillet for machining of the crankpin/main journal of the crankshaft.

**Packing of Crankshaft Grinding Machine is in Process**

Onsite crankshaft grinding and polishing machine frame is made out of titanium steel, which is robust and vibrationless.
With our latest onsite crankshaft grinder, machining of crankshaft up to 700 mm diameter can even be done while sailing the vessel, maintaining the close tolerance.
Onsite crankshaft grinding machine capable of maintaining close tolerance within 0.02 mm and with high surface finish far better than the international standards.
The insitu crankshaft grinding machine manufactured by RA Power Solutions can also be used for cylindrical shaft grinding and polishing and for the repair of the alternator, rotor shaft, pump shaft, intermediate shaft, mid-shaft, and turbine shaft.
Insitu crankshaft grinding and polishing equipment is easy to operate and maintain. It does not require any complicated day-to-day maintenance.
We are giving free training to the client’s technicians for the operation of this latest onsite crankshaft grinding equipment.

**Accessories Used in Crankshaft Grinding Machine**

The cost of insitu crankshaft machining equipment is low and affordable. Highly recommended for large diesel power plants, shipping companies, and engine repair workshops. Insitu crankshaft grinding equipment is supplied in sturdy steel boxes that can be easily stored and taken from one site to another.

**Training on Operation of Crankshaft Grinding Machine**

We have sold more than 70 crankshaft grinding machines all over the world including South America, UK, Italy, Nigeria, Singapore, the Philippines, Iran, Dubai, and various countries.

The author of this blog is Mr. Raj Shahani (Managing Director of Company). He has four decades of experience in the field of high-capacity engine repair and grinding of shaft. He has developed an onsite crankshaft grinding machine to make the grinding process easy and less time-consuming. With the development of grinding equipment, now companies can undertake grinding and repair of any rotary shaft themselves saving a huge amount of money and time.

For information regarding onsite crankshaft grinding & polishing machine, on site machining services, onsite crankshaft machining, contact us at rajshahani@rapowersolutions.com or info@rapowersolutions.com, or call us at +91 9582647131 or +91 9810012383.

**Onsite Grinding of Crankpin by Crankshaft Grinding Machine**

Crankshaft is a mechanical and important part of the engine that facilitates the performance of a conversion between reciprocating motion and rotational motion. The tolerances of the crankpin and main journal of the crankshaft are generally very close in order to have a longer life and continuous satisfactory performance of the Crankshaft without any damage. … Continue reading “In-Situ Crankshaft Grinding Machine | Onsite Crankshaft Machining | Onsite Crankshaft Grinding & Polishing Machine – RA Power Solutions”

Onsite Crankshaft Grinding Machine for Crankshaft Repair – RA Power Solutions

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”