In Situ Crankshaft Grinding

Cast iron shows up everywhere in marine, power, mining, cement, and heavy engineering—engine blocks, crankcases, cylinder heads, pumps, turbine casings, and you name it. It's strong, it damps vibration well, and it holds its shape under load, which is exactly why it's been the go-to material for these components for so long. The catch is that it's brittle. Push it too far, run it too long under stress, and it cracks. When a large casting cracks, the instinct is often to replace it. But replacing big cast iron components is expensive and slow, and that's exactly why metal stitching has become the preferred fix for a lot of operators. It repairs cracked cast iron without welding, and it does it while keeping the component's strength and dimensions intact. Why Do Cast Iron Components Crack in the First Place? After years of repairing marine and industrial machinery, one thing becomes clear pretty quickly—it's rarely just one cause. Usually it's a mix of condi...

RA Power Solutions undertakes in situ machining and repair of crankshafts for 2-stroke and 4-stroke engines installed in power plants, ships, and various other industrial applications. We offer professional in-situ machining services and crankshaft repairs for diameters up to 700 mm. Through the concept of in-situ machining, grinding and repair works are executed directly in place without removing the crankshaft from the engine block, which drastically reduces engine downtime. In the shipping industry, extracting a massive crankshaft to send it to an onshore workshop is practically impossible. Consequently, on-site crankshaft machining is rapidly growing in popularity—not just for vessels, but also for high-capacity generators operating in land-based power plants. Damage of crankpin of Caterpillar 3416B   Caterpillar engine 3416B Crankpin after grinding & polishing    Technical Support and Precision Engineering Backed by over four decades of experience, RA Pow...