(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.
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