Conveyors - Maximum Inclination vs. Product
Maximum conveyor inclination slopes for typical products.
Maximum conveyor slopes for various materials:
| Material | Maximum Slope (degrees) |
|---|---|
| Acid phosphate | 13 |
| Alum | 22 |
| Alumina - sized or briquette | 10 |
| Aluminum sulphate | 17 |
| Anthracite coal | 16 |
| Ammonium chloride | 10 |
| Ammonium nitrate | 23 |
| Asbestos ore rock | 18 |
| Asbestos shred | 30 |
| Ashes - wet | 18 |
| Ashes - dry | 16 |
| Asphalt | 30 |
| Bagasse | 30 |
| Bark, wood | 27 |
| Barley | 12 |
| Bauxite - ground dried | 23 |
| Bauxite - mine run | 17 |
| Beans | 7 |
| Beets, whole | 20 |
| Borax | 20 |
| Bran | 12 |
| Brewers grain, spent | 27 |
| Brick | 27 |
| Calcium carbide | 18 |
| Carbon black, pelleted | 5 |
| Carborundum 75 mm | 15 |
| Cashew nuts | 22 |
| Cement - Clinker | 20 |
| Cement - loose | 22 |
| Cement - Portland | 20 |
| Chalk, lumpy | 15 |
| Chalk < 100 mesh | 28 |
| Charcoal | 22 |
| Chrome ore | 17 |
| Cinders | 23 |
| Clay - dry lump loose | 21 |
| Clay - ground | 22 |
| Clay - gray granular | 20 |
| Coal - bituminous slake | 20 |
| Coal - run of mine | 18 |
| Coke - screened | 18 |
| Coke - breeze | 20 |
| Coke - run of oven | 18 |
| Concrete - 6 inch slump (how wet the concrete is - based on the "slump test") | 12 |
| Concrete - 4 inch slump | 20 |
| Concrete - 2 inch slope | 24 - 26 |
| Coal - soft lumps > 4 inches | 15 |
| Coal - soft lumps < 4 inches | 16 |
| Coal - unsized | 18 |
| Coal - soft fine | 20 - 22 |
| Copper sulphate | 17 |
| Corn, ear | 18 |
| Corn, shelled | 10 |
| Cornmeal | 22 |
| Cottonseed cake | 20 |
| Dolomite | 20 |
| Earth - loose | 20 |
| Earth - sluggish | 22 |
| Earth - moist | 18 - 20 |
| Fertilizer - artifical | 12 - 15 |
| Fieldspar - crushed | 17 |
| Flour | 15 - 18 |
| Fluorspar | 20 |
| Foundry sand | 20 |
| Furnace slag - granulated | 13 |
| Grain - except oats | 14 |
| Grain, distillery spent dry | 15 |
| Granite, 75 mm broken lumps | 18 |
| Graphite, flakes | 15 |
| Gravel - sized and washed | 12 |
| Gravel - unsized | 18 - 20 |
| Gypsum - broken | 18 |
| Gypsum - ground | 27 |
| Gypsum - powder | 23 |
| Iron ore - limonite | 28 |
| Iron ore - soft | 21 |
| Kaolin - pulverized | 32 |
| Lead ores | 15 |
| Lead oxide | 20 |
| Lignite, air dried | 18 |
| Lime - burned pebble | 15 |
| Lime - burned pulverized | 17 |
| Lime - fine | 29 |
| Limestone - pulverized | 34 |
| Limestone - mixed sized | 21 |
| Limestone - coarse sized | 12 |
| Lineseed cake | 15 |
| Lineseed meal | 20 |
| Loam, moist | 18 - 20 |
| Logs - no bark | 10 |
| Magnesium chloride | 23 |
| Magnesium sulphate | 15 |
| Marble, crushed < 12 mm | 15 |
| Mica - ground | 23 |
| Molybdenite ore - powdered | 25 |
| Manganese | 24 |
| Nickel-cobalt | 20 |
| Oats | 10 |
| Ore - larger than 4 inches | 18 |
| Ore - less than 4 inches | 20 |
| Packages - wrapped in paper on smooth belts | 16 |
| Packages - wrapped in paper on ribflex belts or similar | 25 - 45 |
| Peanuts in shells or shelled | 8 |
| Peas dried | 8 |
| Peat | 16 |
| Phosphate | 14 |
| Phosphate - pulverized | 28 |
| Potash ore | 15 |
| Potatoes | 12 |
| Quartz | 15 |
| Rice | 8 |
| Rock crushed | 18 |
| Rubber pelleted | 22 |
| Rye | 8 |
| Salt, fine | 15 - 18 |
| Salt, rock | 18 - 20 |
| Sand - dry | 16 |
| Sand - damp moist | 20 |
| Sand - uniformly sized foundry high-quality silica sand or lake | 24 |
| Sawdust | 22 |
| Shale | 26 |
| Sinter | 15 |
| Slag, furnace | 10 - 15 |
| Slate | 18 |
| Soap chips | 18 |
| Soda ash, briquettes | 7 |
| Sodium nitrate | 11 |
| Sodium phosphate | 16 |
| Soybeans, cracked | 18 |
| Soybeans, whole | 14 |
| Starch | 12 |
| Steel trimmings | 18 |
| Stone - crushed | 18 |
| Sugar, raw cane | 22 |
| Sugar, refined | 20 |
| Sulfur - powder | 21 |
| Sulpate - powder | 21 |
| Stones - larger than 4 inches | 15 |
| Stones - less than 4 inches | 16 |
| Talc, powder | 12 |
| Titanium ore | 18 |
| Traprock | 18 |
| Vermiculite, expanded | 23 |
| Vermiculite, ore | 20 |
| Walnut shells, crushed | 20 |
| Wheat | 12 |
| Whole grain | 15 |
| Woodchips | 27 |
| Zinc ore | 22 - 25 |
Inclination or Slope Chart
Use this chart to estimate the inclination or slope angle of a conveyor. Measure the horizontal run and the vertical rise of the conveyor. Draw the lines in the chart to estimate inclination.
