Belt Conveyors for Bulk Materials Calculations by CEMA 5
Material characteristics and weight per cubic foot CEMA Material Average weight (lbs/cu ft) Angle of repose (degrees) Recommended maximum inclination (degrees) Code Ashes, fly 4045 42 2025 A37 Cement, Portland 7299 3044 2023 A36M Coal, anthracite, river, or culm, inch and under 60 35 18 B35TY Coal, lignite 4045 38 22 D36T Copper ore 120150 3044 20 *D37 Dolomite, lumpy 80100 30