In-Situ Crankshaft Crankpin Machining
Client: Confidential
Industry: Marine & Shipping
Location: Iceland
Turnaround Time: 24 Hours
Service: In-Situ Crankshaft Crankpin Polishing (Main Engine – 7 Pins)
Emergency Marine Crankpin Polishing Service in Iceland
Royce Onsite Machining was urgently mobilised to Iceland to carry out in-situ crankshaft crankpin polishing on a main engine with 7 crankpins, following reports of surface wear and reduced bearing performance onboard a marine vessel.
This critical repair was completed within 24 hours, eliminating the need for crankshaft removal, workshop intervention, and costly vessel downtime.
Our onsite machining team restored crankpin surface finish and bearing performance using advanced precision polishing techniques directly on the installed engine.
Problem: Crankpin Wear Affecting Main Engine Performance
Inspection identified:
- Crankpin journal wear and surface damage across 7 journals
- Poor surface finish affecting lubrication film stability
- Increased risk of bearing failure
- Urgent requirement to avoid vessel downtime
Traditional repair methods would have required:
- Full main engine strip-down
- Crankshaft removal
- Offshore machining or extended transport delays
This was not feasible due to operational constraints.
Solution: In-Situ Crankpin Polishing (24 Hour Turnaround)
Our marine engineering team executed a rapid-response onboard repair using precision in-situ crankpin polishing techniques.
Key Work Performed:
- Immediate inspection and dimensional verification of all 7 crankpins
- Surface condition assessment and tolerance checks
- Precision in-situ polishing of crankpin journals
- Controlled surface refinement to restore finish quality
- Final verification of geometry and surface condition
Technical Benefits of Crankpin Polishing
Crankpin polishing is critical to maintaining main engine reliability and performance, offering:
- Improved bearing surface contact
- Enhanced lubrication film stability
- Reduced friction and wear
- Extended crankshaft service life
- Reduced risk of catastrophic bearing failure
Fast Response Marine Machining – 24 Hour Completion
This emergency intervention was completed within 24 hours on-site in Iceland, demonstrating the capability of rapid-deployment onsite machining services for critical marine applications.
No dismantling. No transport delays. No extended downtime.
Outcome
The crankpins were successfully restored to a high-quality surface finish, enabling the main engine to return to full operational condition immediately.
This project demonstrates Royce Onsite Machining’s capability in delivering emergency in-situ crankshaft crankpin polishing services for the global marine and shipping industry.
