Full definition
Solid material composed of loose particles (ore, gravel, coal, grain, cement, fertilizers) transported in mass. Key properties for conveyor design: bulk density (0.5-4.5 t/m³), angle of repose (15-45°), particle size distribution, abrasiveness index (CEMA classes A, B, C, D), moisture, and temperature. Accurate bulk material characterization is the first step in any conveyor belt technical specification and determines belt width, speed, and component selection.