🚜 What Is Swell Factor and Why Does It Matter in Mining? One of the most overlooked concepts in mining and quarry operations is Swell Factor. When rock or soil is excavated, it expands because voids are created between particles. This increase in volume is called Swell. Example 100 m³ of rock in the ground ⬇ 130 m³ after blasting and excavation ✅ Swell Factor = 30% Why Is This Important? Because trucks, stockpiles, and production plans are based on the loose volume—not the in-situ volume. If your mine plan calls for: 📌 10,000 BCM And your swell factor is 30% Then you actually need to move: 📌 13,000 LCM Ignoring swell factor can lead to: ❌ Incorrect fleet sizing ❌ Poor production estimates ❌ Higher haulage costs ❌ Stockpile inaccuracies Typical Swell Factors • Sand: 10–15% • Clay: 20–40% • Limestone: 30–50% • Granite: 40–70% Understanding swell factor helps improve production planning, truck allocation, and overall mining efficiency. 📊 What swell factor do you use for limestone or hard rock operations? #Mining #Quarrying #MinePlanning #Excavator #DumpTruck #MiningEngineering #Earthmoving #FleetManagement #VantageEarthmovers