General Information
In-situ grinding of a crankshaft refers to the process of repairing and grinding the crankpin journals on crankshaft directly on-site, without having dismantling the engine and transport the crankshaft to a workshop. This method is used when the crankshaft becomes damaged or worn due to wear or poor lubrication, but removing it for workshop repair is time-consuming, costly, or impractical.
Benefits of In-Situ Grinding
Time-saving
No need to disassemble the engine or transport the crankshaft to a workshop.
Cost-effective
Reduces downtime and avoids transportation and reassembly costs.
Precision
Specialized equipment and techniques allow for highly accurate grinding and surface finishing, restoring the crankshaft to the original manufacturer’s specifications.
Our specialized technician will attend your vessel to inspect the crankshaft condition.
- Visual Inspection: Inspect the crankshaft visually for visible signs of damage, wear, or cracks. Surface issues such as scoring, pitting, or corrosion are common problems.
- Dimensional Measurement: Use precision measuring tools such as micrometers or calipers to check the journal diameters, crankpin ovality, and any misalignments. Measurements help determine whether the crankshaft is still within the acceptable limits for grinding.
- Run out test: Checking the straightness of the crankshaft for any axial deviation outside the manufacturer’s limits.
- Non-destructive Testing (NDT): Methods such as dye penetrant inspection may be used to detect cracks, fatigue, or other hidden flaws in the crankshaft.
- Hardness: Measurning the hardness of crankpins by portable equipment.
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