Conveyors - Maximum Inclination
Maximum conveyor slopes for various materials
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Maximum conveyor slopes for various materials:
| Material | Maximum Slope (degrees) |
|---|---|
| Alumina - sized or briquette | 10 |
| Anthracite coal | 16 |
| Ashes - wet | 38 |
| Ashes - dry | 27 |
| Bauxite - ground dried | 23 |
| Bauxite - mine run | 17 |
| Cement - Clinker | 20 |
| Cement - loose | 22 |
| Cement - Portland | 28 |
| 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 |
| Earth - loose | 20 |
| Earth - sluggish | 22 |
| Fieldspar - crushed | 17 |
| Furnace slag - granulated | 13 |
| Gravel - sized and washed | 12 |
| Gravel - unsized | 18 - 20 |
| Gypsum - ground | 27 |
| Gypsum - powder | 23 |
| Iron ore - limonite | 28 |
| Iron ore - soft | 21 |
| Kaolin - pulverized | 32 |
| Lime - burned pebble | 15 |
| Lime - burned pulverized | 17 |
| Lime - fine | 29 |
| Limestone - pulverized | 34 |
| Limestone - mixed sized | 21 |
| Limestone - coarse sized | 12 |
| Logs - no bark | 10 |
| Mica - ground | 23 |
| Molybdenite ore - powdered | 25 |
| Manganese | 24 |
| 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 |
| Phosphate | 14 |
| Phosphate - pulverized | 28 |
| Salt | 20 |
| Sand - dry | 16 |
| Sand - damp moist | 20 |
| Sand - uniformly sized foundry high-quality silica sand or lake | 24 |
| Shale | 26 |
| Stone - crushed | 18 |
| Sulfur - powder | 21 |
| Stones - larger than 4 inches | 15 |
| Stones - less than 4 inches | 16 |
| Whole grain | 15 |
| Wood chips | 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.
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