The Bellstone BHI-CSC-484 Los Angeles Abrasion Testing Machine is a specialized tool designed for evaluating the abrasion resistance of various aggregates, including crushed rock, crushed slag, and uncrushed gravel. The machine features a hollow cylinder mounted horizontally on a sturdy frame with ball bearings, ensuring smooth rotation. Inside the cylinder, a shelf lifts and drops the sample as it rotates at a speed of 30-33 RPM, simulating real-world wear conditions. Equipped with a heavy reduction counter, this machine provides accurate and reliable results, making it essential for testing the durability of materials used in road construction and high-traffic infrastructure. By measuring the wear resistance of aggregates, the Los Angeles Abrasion Testing Machine helps ensure the quality and longevity of materials for pavements, highways, and other construction projects.