Onsite Crankshaft Grinding Machines – Worldwide Supplier

Onsite crankshaft grinding machine is a specialised machine that is used to manufacture, repair, and recondition crankshafts on site. The engine’s backbone is the crankshaft, which converts piston motion into rotation. Consequently, its precision is essential. Crankshafts can develop surface imperfections, erosion, or scoring over time. Through the restoration of engines to their exact proportions with a faultless finish, our machine guarantees their dependability and efficiency.

RA Power Solutions is emerging as a worldwide supplier of such machines, enabling engine and repair shops, power plants, and marine operators to carry out crankshaft repairs without removing them from the engine block.

Crankshaft Grinding Machine Ready for Dispatch

Important Features:

A finish that meets international standards is achieved through high-precision grinding, which maintains strict tolerances of less than 10 microns.
It is portable and lightweight, allowing for immediate on site crankshaft maintenance at the designated location.

User-Friendly:

This device is suitable for both novice and seasoned technicians, as it is designed to be low-maintenance and trouble-free.
A Wide Range of Applications: It is suitable for marine engines, power plants, and heavy industrial apparatus, as it does not necessitate disassembly.

Applications:

Marine Industry: Large ship engines can be repaired on site without the need for removal.
The crankshafts of diesel generators function effectively in power facilities.
Heavy engineering is suitable for the construction of buildings, mining, and industrial machinery.

Benefits:

Restoring crankshafts rather than replacing them with costly alternatives results in cost savings.
Increased Engine Life: Prevents deterioration and extends the lifespan of the engine.
The advantage of onsite repair is that it eliminates the necessity of transporting large engines to workshops.
Enhanced Performance: Ensures a smoother operation, reduced fuel consumption, and reduced friction.
Time-saving: Restoration can be completed more rapidly than the process of obtaining new materials.

Bushes Used in Crankshaft Grinding Machine

Crankshaft Grinding Machine for Big Diameter

Global Presence:

Over 200 Onsite Crankshaft Grinding Machines and crankshaft grinding and polishing equipment have been supplied globally by RA Power Solutions. Our apparatus is utilised in the following regions:

Asia: India, Saudi Arabia, the United Arab Emirates, Indonesia, Sri Lanka, and Bangladesh
Africa: Burkina Faso, Tanzania, Ghana, Kenya, Egypt, South Africa, and Nigeria
Greece, Turkey, Italy, Germany, the United Kingdom, and the Netherlands comprise Europe.
Americas: the United States, Canada, Mexico, and Brazil
Oceania comprises Australia and New Zealand.

We are committed to enhancing the profitability of transportation companies, repair shops, power plants, and heavy industries by reducing costs, minimizing downtime, and expanding our global presence.

Packing in Progress Insitu Crankshaft Grinding Machine — Crankpin Grinding Machine

For additional information about the Onsite Crankshaft Grinding Machines, Onsite Crankshaft Grinding Equipment. Please contact us at rajshahani@rapowersolutions.com, info@rapowersolutions.com, or +91 9582647131 or +91 9810012383.

FAQs:

Q1. What is onsite crankshaft grinding, and how does it work?

Onsite crankshaft grinding (in situ grinding) is a process where damaged crankpins or main journals are repaired using portable grinding machines directly at the site, without dismantling the engine.

Q2. What are the benefits of using an onsite crankshaft grinding machine?

The key benefits include reduced downtime, lower repair costs, elimination of transportation hassles, precision repairs meeting OEM standards, and extended crankshaft life.

Q3. Which industries use onsite crankshaft grinding machines?

These machines are widely used in marine, power plants, diesel generator sets, offshore platforms, heavy engineering, and industrial plants where large engines are in operation.

Q4. What crankshaft sizes can be repaired using portable grinding machines?

RA Power Solutions machines can handle a wide range of crankshaft diameters, from small engines to large marine and industrial engines, with high accuracy.

Q5. Does RA Power Solutions provide worldwide supply and training for these machines?

Yes, RA Power Solutions supplies crankshaft grinding machines globally and provides operator training to ensure easy and efficient use at any site.

Onsite crankshaft grinding machine is a specialised machine that is used to manufacture, repair, and recondition crankshafts on site. The engine’s backbone is the crankshaft, which converts piston motion into rotation. Consequently, its precision is essential. Crankshafts can develop surface imperfections, erosion, or scoring over time. Through the restoration of engines to their exact proportions … Continue reading “Onsite Crankshaft Grinding Machines – Worldwide Supplier”

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 Grinding and Repair

HIMSEN HYUNDAI 6H 17 28 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.

MPI Test of HIMSEN HYUNDAI 6H 17 28 Before Grinding

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.

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.

FAQs

1. What is onsite crankshaft repair for HIMSEN HYUNDAI 6H 17/28 engines?

Onsite crankshaft repair for HIMSEN HYUNDAI 6H 17/28 engines by RA Power Solutions involves in-situ grinding and polishing of crankpins and main journals without shaft removal. This saves downtime, avoids disassembly, and restores crankshaft dimensions as per OEM standards.

2. How is crankshaft grinding performed on ships in Turkey?

RA Power Solutions performs crankshaft grinding on ships in Turkey using portable, high-precision equipment. The process includes inspection, in-situ grinding, and polishing of crankpins or main journals, all done onboard without shaft removal, ensuring minimal downtime and cost.

3. What are the benefits of in situ crankshaft repair on HIMSEN engines?

In-situ crankshaft repair on HIMSEN engines by RA Power Solutions reduces downtime, eliminates the need for shaft removal, and avoids costly dismantling and transport. It ensures fast, cost-effective restoration of crankpins or main journals to OEM specifications onboard the vessel.

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.

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.

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.

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.

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.

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”