When a critical engine—like MAK, MAN, Daihatsu, Wartsila, Caterpillar, Cummins, Yanmar, Hyundai Himsen, or MAN B&W—starts showing wear on its crankshaft, downtime isn’t an option. Every minute the vessel or plant is offline, you’re losing money.
That’s exactly where R A Power Solutions comes in.
Instead of dismantling the entire engine and shipping the crankshaft to a workshop, our team travels to your site—anywhere in the world—and performs in situ crankshaft grinding and polishing right inside the engine block.
Less downtime. Less cost. No heavy logistics.
What is in situ crankshaft grinding?
In situ crankshaft grinding is the process of repairing and restoring crankpins and main journals directly on the engine, without removing the crankshaft.
We use state-of-the-art portable grinding and polishing machines designed by our in-house R&D team for precision repairs.
Key benefits:
- No need to remove or transport the crankshaft
- No dismantling of major engine components
- Fast turnaround
Massive cost savings
Why It Matters for Marine & Industrial Engines
Whether it’s a ship sailing across continents or a power plant supporting industrial operations, crankshaft failure can bring everything to a halt.
That downtime translates to:
- Delay charges
- Production loss
- Unplanned repair costs
R A Power Solutions specializes in repairing crankshafts of MAK, MAN, Daihatsu, Wartsila, Caterpillar, Cummins, and similar large engines installed in:
- Marine vessels (bulk carriers, LNG carriers, tankers)
- Offshore platforms
- Power plants
- Cement and mining industries
Our expertise and equipment allow us to restore crankshafts to OEM tolerances without stripping the entire engine.
On Site vs Off Site Grinding: The Advantage of R A Power Solutions
| On Site (In Situ) by R A Power | Traditional Workshop Grinding |
| Zero crankshaft removal | Requires complete dismantling |
| Fast turnaround | Long transport & reassembly delays |
| Saves logistics cost | Expensive handling & freight |
| Ideal for emergencies | Slow and dependent on workshop availability |
Why choose us?
Because downtime is expensive, we eliminate it.
Our step-by-step process:
- On-site inspection and journal measurement
- Alignment and setup of the portable grinding machine
- Precision grinding within OEM tolerance
- Final polishing for correct oil film thickness
- Onsite crankshaft straightening & hardness test
- Dynamic balancing (if required)
- Final inspection and calibration report
We maintain tolerances of 0.02–0.03 mm, keeping the crankshaft within OEM specs. We’ve successfully completed crankshaft repairs across more than 45 countries, including projects in Burkina Faso, UAE, Singapore, Oman, Saudi Arabia, and the Netherlands.
How to Choose the Right In Situ Crankshaft Grinding Company
If you need crankshaft grinding or repair—and downtime is not an option—R A Power Solutions is your go-to partner.
We deliver:
- Fast deployment
- Global service
- OEM-standard precision
Request a quote or schedule an inspection:
info@rapowersolutions.com
+91 9582647131 / +91 9810012383.
FAQs
In situ crankshaft grinding is a precision machining service performed on-site without removing the crankshaft, saving time and reducing downtime.
In situ grinding keeps marine engines operational, minimizes disassembly, and avoids costly transport of large components—perfect for vessels and dockside repairs.
It eliminates transportation and handling costs, reduces engine downtime, and extends engine life, making it a cost-effective solution for industrial and marine engines.
Yes—modern in situ grinding machines can correct heavy wear, scoring, and out-of-tolerance journals with high precision, restoring crankshaft geometry effectively.
Turnaround time varies by engine size and damage severity, but in situ services are generally faster than workshop repairs since no removal or shipping of parts is needed.
