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DesignEngineering Manufacturing
bUlK MaTeRIal Table
Bulk Material
Maximum Particle Size (in.)
Bulk Density (lbs/ft³)
Trough Loading
Material Factor (MF)
Component /Bearing Series
Abrasive- ness
Corrosive- ness
Flowability Special Notes
Acetylenogen (Calcium Carbide) + 1/2^ 70-90^ 30A^ 2.0^ B4^ I^ I^ II^ H Adipic Acid -100M 45 30A 0.5 D3 I I III H, M, V Alfalfa Meal -1/8 14-22 30A 0.6 B4 I I IV O, Q, V Alfalfa Pellets -1/2 41-43 45 0.5 B4 I I II Alfalfa Seed -1/8 10-15 45 0.4 A1-A2-A3 I I I H Almonds -1/2 28-30 30A 0.9 B4 I I III K Alum, Fines -1/8 45-50 30A 0.6 A1-A2-A3 I I III M, • Alum, Lumpy + 1/2 50-60 30A 1.4 B1-B2 I I II • Alumina -1/8 55-65 15 1.8 C4 III I II G, Q Alumina, Fines -100M 35 15 1.6 C4 III I II G, Q Alumina, Sized or Briquette -3^65 15 2.0^ C4^ III^ I^ III Aluminate Gel (Aluminate Hydroxide)
-1/8 45 30A 1.7 B4 I I III V
Aluminum Chips, Dry
-1/2 7-15 30A 1.2 B4 I I IV H, N
Aluminum Chips, Oily -1/2^ 7-15^ 30A^ 0.8^ B4^ I^ I^ IV^ N, Q, V Aluminum Hydrate (Aluminum Hydroxide)
-1/2 13-20 30A 1.4 A1-A2-A3 I I III H, V
Aluminum Oxide -100M 60-120 15 1.8 C4 III I I G, H Aluminum Ore (Bauxite)
-3 75-85 15 1.8 D4 III I II
Aluminum Silicate (Andalusite)
-1/2 49 30A 0.8 C1-C2 I III III V
Aluminum Sulfate (Alum) -1/2^ 45-58^45 1.0^ A1-A2-A3^ I^ I^ II Ammonium Chloride, Crystalline
-100M 45-52 30A 0.7 C1-C2 I III IV A, L
Ammonium Nitrate -1/8 45-62 30A 1.3 C3 I II III H, M, • Ammonium Sulfate -1/2 45-58 30A 1.0 A1-A2-A3 I II III A, I, M, • Antimony Powder -100M • 30A 1.6 B4 II I II V, • Apple Pomace, Dry -1/2 15 30A 1.0 B4 I I IV Q, V Arsenate of Lead (Lead Arsenate) -1/64^72 30A^ 1.4^ A1-A2-A3^ I^ I^ III^ G, L Arsenic Oxide (Arsenolite) -100M^ 100-120^ 30A^ •^ •^ I^ •^ III^ L, • Arsenic, Pulverized -100M 30 45 0.8 B4 I • II L, • Asbestos Rock, Ore -3 81 15 1.2 C4 III I III L Asbestos, Shredded Fibers^ 20-40^ 30B^ 1.0^ B4^ II^ I^ IV^ L, P, Q Ash, Black, Ground -1/8 105 30A 2.0 A1-A2-A3 I I III Ashes, Coal, Dry -1/2 35-45 30B 3.0 C4 II II IV Q
DesignEngineering Manufacturing
Bulk Material
Maximum Particle Size (in.)
Bulk Density (lbs/ft³)
Trough Loading
Material Factor (MF)
Component /Bearing Series
Abrasive- ness
Corrosive- ness
Flowability Special Notes
Ashes, Coal, Dry -3 35-40 30B 2.5 C4 II II IV Ashes, Coal, Wet -1/2 45-50 30B 3.0 D4 II II IV P Ashes, Coal, Wet -3 45-50 30B 4.0 D4 II II IV P Asphalt, Crushed -1/2 45 30A 2.0 A1-A2-A3 I I IV Bagasse, Dry Fibers 7-10 30A 1.5 B1-B2-B3 I I IV L, N, P, Q Bakelite -1/8 30-45 45 1.4 A1-A2-A3 I I II Baking Powder -100M 40-55 30A 0.6 A2 I I III Baking Soda (Sodium Bicarbonate)
-100M 40-55 45 0.6 A2 I I II
Barite (Barium Sulfate) +1/2^ 120-180^ 30B^ 2.6^ D4^ II^ I^ III Barite, Powder -100M 120-180 30B 2.0 B4 I I III G, P Barium Carbonate -100M 72 30B 1.6 B4 I I IV L Bark, Wood +1/2 10-20 30B 2.0 C4 I II IV N, Q Barley, Fine Ground -1/8 24-38 30B 0.4 A1-A2-A3 I I III Barley, Malted -1/2 31 30A 0.4 A1-A2-A3 I I III Barley, Meal -1/2 28 30A 0.4 A1-A2-A3 I I III Barley, Whole -1/8 36-48 45 0.5 A1-A2-A3 I I II H Basalt -1/8 80-105 15 1.8 C4 III I II Bauxite, Crushed -3 75-85 30B 2.5 D4 II I III Bauxite, Dry, Crushed -1/8^68 15 1.8^ C4^ I^ I^ II Beans, Castor, Meal -1/8^ 35-40^ 30A^ 0.8^ A1-A2-A3^ I^ I^ III^ O Beans, Castor, Whole, Shelled -1/2^36 45 0.5^ A1-A2-A3^ I^ I^ I^ O Beans, Navy, Dry -1/2 48 45 0.5 A1-A2-A3 I I I Beans, Navy, Steeped
-1/2 60 45 0.8 A1-A2-A3 I I II
Beans, Soy -1/2 45-50 45 0.5 A2 I I I Beet Pulp, Dry • 11-16 • • • • • • • Beet Pulp, Wet • 25-45 • • • • • • • Bentonite -100M 50-60 45 0.7 B4 I I II G, P, Q Bentonite, Crude -3 34-40 30A 1.2 B2 I I IV P Benzene Hexachloride -100M^56 30A^ 0.6^ A1-A2-A3^ I^ I^ IV^ L Blood, Dried -3 35-45 30A 2.0 B4 I I IV M Blood, Dried, Ground -100M^30 30A^ 1.0^ A1-A2^ I^ I^ III^ M Bluestone (Copper Sulfate) -1/2^ 75-95^ 30A^ 1.0^ B1-B2-B3^ I^ III^ III^ • Bone Ash (Tricalcium Phosphate)
-100M 40-50 30A 1.6 A1-A2 I I IV
Boneblack -100M 20-25 45 1.5 A1-A2 I I II Q
bUlK MaTeRIal Table
DesignEngineering Manufacturing
Bulk Material
Maximum Particle Size (in.)
Bulk Density (lbs/ft³)
Trough Loading
Material Factor (MF)
Component /Bearing Series
Abrasive- ness
Corrosive- ness
Flowability Special Notes
Celite (Diatomaceous Earth)
-1/64 11-17 30B 1.6 C4 II I III G, P, Q, •
Cement, Aerated (Portland)
-100M 60-75 30B 1.4 B4 II I I G
Cement, Clinker -3 75-95 30B 1.8 D4 II I III Cement, Mortar -1/8 133 30A 3.0 C4 I I III K Cement, Portland -100M 94 30B 1.4 B4 II I II G Cerrusite (Lead Carbonate) -1/64^ 240-260^ 30A^ 1.0^ B4^ I^ I^ III^ G, L Chalk, Crushed -3 75-95 30A 1.9 B4 I I II P Chalk, Ground -100M 67-75 45 1.4 B4 I I II G, P, Q Charcoal, Ground -100M 18-28 30A 1.2 B4 I I IV H Charcoal, Lumps -3 18-28 30A 1.4 B4 I I IV H, K Chips, Pulpwood +1/2 12-25 30A 1.0 B1 I I III N, Q Chocolate, Cake, Pressed
-3 40-45 30A 1.5 B2 I I II
Chrome Ore -3 125-140 30B 2.5 C4 II I III Cinders, Blast Furnace -3^57 30B^ 1.9^ D4^ II^ II^ III Cinders, Coal -3 40 30B 1.8 D4 II II III Clay, Brick, Dry, Fines -1/2^ 100-120^ 30B^ 2.0^ C4^ II^ I^ III Clay, Calcined -1/8 80-100 30B 2.4 C4 II I III Clay, Ceramic, Dry, Fines
-100M 60-80 30A 1.5 A1-A2-A3 I I III J
Clay, Dry, Lumpy -3 60-75 30A 1.8 B4 I I III Clinker, Cement -3 75-95 30B 1.8 D4 II I III Clover, Seed -1/8 45-48 45 0.4 A1-A2-A3 I I II H Coal, Anthracite (Culm and River)
-1/8 55-61 30A 1.0 B1-B2 I II III
Coal, Anthracite, Sized
-1/2 49-61 45 1.0 B1-B2 I I II
Coal, Bituminous, Mined -3^ 40-60^ 30A^ 0.9^ A1-A2^ I^ I^ III^ F, H, P, Q Coal, Bituminous, Mined, Sized -3^ 45-55^ 30A^ 1.0^ A1-A2^ I^ I^ III^ H, K, N Coal, Bituminous, Mined, Slack -1/2^ 43-50^ 30A^ 0.9^ B1-B2^ I^ II^ IV^ H Coal, Lignite -3 37-45 30A 1.0 B4 I II III H Cocoa, Beans -1/2 30-45 45 0.5 A1-A2 I I II K Cocoa, Nibs -1/2 35 45 0.5 B4 I I II Cocoa, Powdered -100M 30-35 30A 0.9 A2 I I IV G, P, Q Coconut Shredded 20-22 30A 1.5 B2 I I IV Coffee, Beans, Green
-1/2 25-32 45 0.5 A1-A2 I I II J, K
bUlK MaTeRIal Table
DesignEngineering Manufacturing
Bulk Material
Maximum Particle Size (in.)
Bulk Density (lbs/ft³)
Trough Loading
Material Factor (MF)
Component /Bearing Series
Abrasive- ness
Corrosive- ness
Flowability Special Notes
Coffee, Beans, Roasted -1/2^ 20-30^45 0.4^ A2^ I^ I^ II^ J, K Coffee, Chaff -1/8 20 45 1.0 A1-A2 I I II G, Q Coffee, Ground, Dry
-1/64 25 30A 0.6 A1-A2 I I III J
Coffee, Ground, Wet -1/64^ 35-45^ 30A^ 0.6^ A1-A2^ I^ I^ IV^ P Coffee, Soluble -1/64 19 30A 0.4 A2 I I III G,J,K,M,Q Coke, Breeze -1/2 25-35 15 1.2 C4 III I III H, Q Coke, Loose -7 25-35 15 1.2 D4 III I III H, K, N Coke, Petrol, Calcined
-7 35-45 15 1.3 D4 III I III N
Compost -7 30-50 30A 1.0 C1-C2 I II IV N, P, • Concrete, Pre-Mix, Dry -1/2^ 85-120^ 30B^ 3.0^ C4^ II^ I^ III^ M Copper Ore + 1/2 120-150 30B 4.0 D4 II I III Copper Ore, Crushed
+ 1/2 120-150 30B 4.0 C4 II I III
Copper Sulfate (Bluestone)
-1/2 75-95 30A 1.0 B1-B2-B3 I III III •
Copperas (Ferrous Sulfate) -1/2^ 50-75^ 30A^ 1.0^ B4^ I^ I^ III^ M Copra, Cake, Ground -1/8^ 40-45^ 30A^ 0.7^ A1-A2-A3^ I^ I^ IV^ C, O Copra, Cake, Lumpy -3^ 25-30^ 30A^ 0.8^ B1-B2-B3^ I^ I^ III^ C, O Copra, Lumpy + 1/2 22 30A 1.0 B1-B2-B3 I I III C, O Copra, Meal -1/8 40-45 30A 0.7 B4 I I III C, O Cork, Granulated -1/2 12-15 30A 0.5 A1-A2-A3 I I III D, V, Q Cork, Ground -1/8 5-15 30A 0.5 A1-A2-A3 I I III D, V, Q Corn, Cleanings -1/8 20-30 30A 0.4 A1-A2-A3 I I III J, Q Corn, Cracked -1/8 40-50 45 0.7 A1-A2-A3 I I II H, J Corn, Grits -1/8 40-45 30A 0.5 A1-A2-A3 I I III H, J Corn, Seed -1/2 45 45 0.4 A1-A2-A3 I I II H, J, K Corn, Steeped -3 40-60 • 0.8 • • • • • Corn, Shelled -1/2 45 45 0.4 A1-A2-A3 I I II H, V Corn Cobs, Ground -1/2 17 45 0.6 A1-A2-A3 I I II H, Q Corn Cobs, Whole Irregular 12-15 30A • B1-B2 I I II H, N, • Corn Ear -16 56 30A • B1-B2 I I III H, N Corn Fiber Feed -1/8 15-35 30A 1.5 • I I III Corn Fiber, Dewatered -1/8^ 10-25^ 30A^ 0.6^ A1-A2-A3^ I^ I^ III Corn Fiber, Wet -1/8 15-50 30A 0.8 A1-A2-A3 I I III J, M Corn Filter Aid -1/8 15-50 15 2.5 C4 III I III Corn Germ -1/8 21 30A 0.4 A1-A2-A3 I I III H, J, O, Q
bUlK MaTeRIal Table
DesignEngineering Manufacturing
Bulk Material
Maximum Particle Size (in.)
Bulk Density (lbs/ft³)
Trough Loading
Material Factor (MF)
Component /Bearing Series
Abrasive- ness
Corrosive- ness
Flowability Special Notes
Distiller’s Grain, Spent, Dry
-1/8 30 30A 0.5 B4 I I III
Distiller’s Grain, Spent, Wet
-1/2 40-60 30A 0.8 C1-C2 I I IV N
Dolomite, Crushed -1/2 80-100 30B 2.0 B4 II I III Dolomite, Lumpy +1/2 90-100 30B 2.0 B4 II I III Earth, Loam, Dry, Loose
-1/2 76 30B 1.2 B4 II I III
Ebonite -1/2 63-70 30A 0.8 A1-A2-A3 I I III V Egg, Powder -1/64 16 30A 1.0 A2 I I III G, H, J, Q Epsom Salts (Magnesium Sulfate)
-1/64 40-50 30A 0.8 A1-A2-A3 I I III M, V
Ethanedioic Acid (Oxalic Acid)
-1/8 60 30A 1.0 A1-A2 I III III L, M
Feldspar, Ground -100M 65-80 15 2.0 B4 III I III Feldspar, Lumps -7 90-100 15 2.0 B4 III I III Feldspar, Powder -200M 100 30B 2.0 B4 II I III Feldspar, Screenings
-1/2 75-80 15 2.0 B4 III I III
Ferrous Sulphate -1/2 50-75 30A 1.0 B4 I I III M Ferrous Sulfide (Iron Sulfide), Lumps
-1/2 120-135 30B 2.0 A1-A2-A3 II I II V
Ferrous Sulfide (Iron Sulfide), Mesh -100M^ 105-120^ 30B^ 2.0^ A1-A2-A3^ II^ I^ III^ V Fish Meal -1/2 35-40 30A 1.0 A1-A2-A3 I I IV C, J, V Fish Scrap -7 40-50 30A 1.5 B1-B2-B3 I I IV C, • Flaxseed -1/8 43-45 30A 0.4 A1-A2-A3 I I III H, P, V Flaxseed Cake (Linseed Cake) -7^ 48-50^ 30A^ 0.7^ B1-B2^ I^ I^ IV^ O Flaxseed Meal (Linseed Meal)
-1/8 25-45 30A 0.4 A1-A2 I I IV O, V
Flour, Wheat -1/64 33-40 30A 0.6 A2 I I IV F, H, J, V Flue Dust, Basic Oxygen Furnace -1/64^ 45-60^ 30B^ 3.5^ C4^ II^ I^ III^ F, G Flue Dust, Blast Furnace -1/64^ 110-125^ 30B^ 3.5^ C4^ II^ I^ III Flue Dust, Boiler H, Dry -1/64^ 30-45^ 30B^ 2.0^ C4^ II^ I^ III^ F, G Fluorspar (Calcium Fluoride)
-1/8 80-100 30B 2.0 B4 II I III
Fluorspar, Lumps -7 90-110 30B 2.0 B4 II I III Flyash -1/64 30-45 30B 2.0 C4 II I III G Flyash, Coal -1/64 30-60 30B 2.0 C4 II I III G Flyash, Fluidized Bed
-1/64 60-90 30B 3.0 C4 II I III
Foundry Sand, Dry -1/8 90-110 15 1.7 C4 III I III
bUlK MaTeRIal Table
DesignEngineering Manufacturing
Bulk Material
Maximum Particle Size (in.)
Bulk Density (lbs/ft³)
Trough Loading
Material Factor (MF)
Component /Bearing Series
Abrasive- ness
Corrosive- ness
Flowability Special Notes
Fuller’s Earth, Oil Filter, Burned -1/8^40 15 2.0^ C4^ III^ I^ II Fuller’s Earth, Oil Filter, Raw
-1/8 35-40 30B 2.0 B4 II I II
Fuller’s Earth, Oil Filter, Spent
35% oil 60-65 15 2.0 D4 III I III I, O
Galena (Lead Sulfide) -100M^ 240-260^ 30A^ 1.2^ B4^ II^ I^ II^ G, L, P Gelatin, Granulated -1/8 32 30A 0.8 A2 I I III J, K, M, V Gilsonite -1/2 37 30B 1.5 D4 II II III H, L Glass, Batch -1/2 80-100 15 2.5 D4 III I III Glue, Ground -1/8 40 30A 1.7 B4 II I IV M Glue, Pearl -1/2 40 30A 0.5 A1-A2-A3 I I III M Glue, Veg. Powdered -1/64^40 30A^ 0.6^ A1-A2-A3^ I^ I^ IV^ M Gluten Cake, Wet -1/2 30-50 30A 2.5 A2 I I IV Gluten, Meal, Dry -1/8 30-40 30A 0.6 A2 I I III J Granite, Broken +1/2 95-100 15 2.5 D4 III I II Granite, Fines -1/2 80-90 15 2.5 C4 III I II Grape, Pomace -3 15-20 30A 1.4 B4 I I IV M, Q, V Graphite Flakes -1/8 40 45 0.5 A1-A2-A3 I I II F, J, V Graphite Flour -100M 28 30A 0.5 A1-A2-A3 I I III F, G, J, V Graphite Ore +1/2 65-75 30A 1.0 B4 I I III F Grass Seed -1/8 10-32 30A 0.4 A2 I I III H, Q Guano, Dry -1/2 70 30A 2.0 C1-C2 I I III • Gypsum, Calcined -1/8 55-60 30A 1.6 B4 I I III M Gypsum, Calcined, Powdered
-100M 60-80 30A 2.0 B4 I I III M
Gypsum, Raw -3 70-80 30A 2.0 B4 I I II Green Vitriol (Ferrous Sulfate) -1/2^ 50-75^ 30B^ 1.0^ B4^ II^ I^ II Hay, Chopped -1/2 8-12 30A 1.6 B1-B2 I I III D, Q, • Hexanedioic Acid (Adipic Acid) -100M^45 30A^ 0.5^ D3^ I^ I^ III^ H, M Hominy -1/2 35-50 30A 0.4 A1-A2-A3 I I II J, V Hops, Spent, Dry -3 35 30A 1.0 B1-B2-B3 I I III V Hops, Spent, Wet -3 50-55 30A 1.5 D3 I II IV N, V Hydroxybenzoic Acid (Salicylic Acid) -1/8^29 15 0.6^ C4^ III^ I^ III^ M Ice, Crushed -3 35-45 30A 0.4 B1-B2 I I III K, V Ice, Cubed -3 33-35 30A 0.4 A2 I I III K, V Ice, Flaked -1/2 40-45 30A 0.6 A2 I I III K, V, • Ice, Shells -3 33-35 30A 0.4 A2 I I IV K, V Ilmenite Ore -3 140-160 15 2.0 C4 III I III Iron Ore -1/64 120-180 15 2.2 C4 III I III Iron Oxide Pigment -100M 25 30B 1.0 A1-A2-A3 II I III F, G, J
bUlK MaTeRIal Table
DesignEngineering Manufacturing
Bulk Material
Maximum Particle Size (in.)
Bulk Density (lbs/ft³)
Trough Loading
Material Factor (MF)
Component /Bearing Series
Abrasive- ness
Corrosive- ness
Flowability Special Notes
Manganese Ore +1/2 125-140 15 2.0 C4 III I III Manganese Oxide -100M 120 30B 2.0 B4 II I III Manganese Sulfate -1/2 70 15 2.4 C4 III I III Marble, crushed -1/8 80-95 15 2.0 C4 III I III Marl (Clay) + 1/2 80 30B 1.6 B4 II I III Meat, Ground -1/4 50-55 30A 1.5 B1-B2 I II IV C, K, P, • Meat, Scraps, With Bone
Scraps 40 30B 1.5 D4 II I IV C, N, •
Mica, Flakes -1/8 17-22 30B 1.0 B4 II I I G, N, Q, V Mica, Ground -1/8 13-15 30B 0.9 B4 II I III V Mica, Pulverized -100M 13-15 30B 1.0 B4 II I III G, V Milk, Dried, Flake -1/8 5-6 30A 0.4 A2 I I III H, J, M, Q Milk, Malted -1/64 27-30 30A 0.9 A2 I I IV G, H, J, P Milk, Powdered -1/8 20-45 45 0.5 A2 I I II G, H, J Milk, Powdered, Whole
-1/8 20-36 30A 0.5 A2 I I III J, M, P
Milk, Whole, Dried -100M 20 30A 0.4 A2 I I III G, J, M P Milk Sugar (Lactose) -100M^32 30A^ 0.8^ A2^ I^ I^ III^ H, J, P Mill Scale (Steel) Irregular 120-125 30B 3.0 C4 II II IV Milo, Ground -1/8 32-36 30A 0.5 A1-A2-A3 I I II V Milo, Maize (Kafir) -1/8 40-45 45 0.4 A1-A2-A3 I I I H, V Molybdenite Powder
-1/8 107 30A 1.5 B4 II I II
Monosodium Phosphate
-1/8 50 30B 0.6 B4 II I III
Mortar, Wet Irregular 150 30B 3.0 C4 II II IV Muriate of Potash -1/8 77 15 1.8 D4 III III II Mustard Seed -1/8 45 45 0.4 A1-A2-A3 I I I H, V Naphtalene, Flakes -1/8 45 30A 0.7 A1-A2-A3 I I III V Nicotinic Acid (Niacin)
-1/64 35 30A 0.8 B4 I I III J
Oakite (Trisodium Phosphate)
-1/8 60 30B 1.7 B4 II I II
Oats -1/2 26 45 0.6 A1-A2-A3 I I Ii G, H, V Oats, Crimped -1/2 19-26 30A 0.5 A1-A2-A3 I I III V Oats, Crushed -1/8 22 30A 0.6 A1-A2-A3 I I IV H, Q, V Oats, Flour -100M 35 30A 0.5 A1-A2-A3 I I III V Oats, Hulls -1/8 8-12 30A 0.5 A1-A2-A3 I I III H, Q, V Oats, Rolled -1/2 19-24 30A 0.6 A1-A2-A3 I I III H, Q, V
Oleo (Margarine) Irregular 59 30A 0.4 B1-B2 I I IV C, E, J, O, P Oranges, Peels, Dry Irregular^15 30A^ 1.5^ B1-B2^ I^ I^ IV Oxalic Acid, Crystal—Ethane Diacid Crystal
-1/8 60 30A 1.0 A1-A2 I III III K, M
bUlK MaTeRIal Table
DesignEngineering Manufacturing
Bulk Material
Maximum Particle Size (in.)
Bulk Density (lbs/ft³)
Trough Loading
Material Factor (MF)
Component /Bearing Series
Abrasive- ness
Corrosive- ness
Flowability Special Notes
Oyster Shells, Ground -1/2^ 50-60^ 30B^ 2.0^ B4^ II^ II^ III Oyster Shells, Whole
-3 80 30B 2.5 B4 II II III N
Paper Pulp, Stock 5% 62 30A 1.5 B1-B2 I I IV N Paper Pulp, stock 6-15% 60-62 30A 1.7 B1-B2 I I IV N Paraffin Cake, Broken -1/2^45 30A^ 0.6^ A1-A2^ I^ I^ IV^ E Peanuts Meal -1/8 30 30A 0.6 A2 I I III J, V Peanuts, Clean, Shelled
-3 15-20 30A 0.6 B1-B2 I I III K
Peanuts, Raw, Uncleaned, Unshelled
-3 15-20 30B 0.7 C4 I I III K
Peanuts, Shelled -1/2 35-45 30A 0.4 A2 I I III K, V Peas, Dried -1/2 45-50 45 0.5 A1-A2-A3 I I I H, K, V Perlite, Expanded -1/2 8-12 30B 0.6 B4 II I III Phosphate Disodium
-1/8 50-60 30A 0.9 A1-A2 I I III
Phosphate Acid, Fertilizer
-1/8 60 45 1.4 B1-B2 I II II
Phosphate Rock, Broken + 1/2^ 75-85^ 30B^ 2.1^ B2^ II^ I^ III Phosphate Rock, Pulverized -1/8^60 30B^ 1.7^ B4^ II^ I^ III Phosphate of Soda (Disodium Phosphate)
-1/64 25-31 30A 0.5 C4 I I III K
Phosphate Sand, Granular
-1/8 90-100 15 2.0 C4 III I III
Phosphoprotein (Casein)
-1/8 36 30B 1.6 B4 II I II
Phosphoric Acid (Phosphate Acid) -100M^60 30A^ 1.4^ A2^ I^ I^ II Plaster of Paris (Gypsum) -200M^ 60-80^ 30B^ 0.9^ B4^ II^ I^ III^ G Polyethylene, Pellets -1/8^35 30A^ 0.4^ A2^ I^ I^ III^ J, K Polystyrene Beads -1/8 40 30A 0.4 A2 I I II J, K, V Polyvinyl Chloride, Pellets
Irregular 20-30 30A 0.6 A2 I II IV E, J, K
Polyvinyl Chloride, Powder -100M^ 20-30^ 30A^ 1.0^ A1-A2-A3^ I^ II^ IV^ E Potash, Dry (Muriate of Potash) -1/8^70 15 2.0^ D4^ III^ III^ III Potash, Mine Run (Muriate of Potash) +1/2^75 15 2.2^ D4^ III^ III^ III
bUlK MaTeRIal Table
DesignEngineering Manufacturing
Bulk Material
Maximum Particle Size (in.)
Bulk Density (lbs/ft³)
Trough Loading
Material Factor (MF)
Component /Bearing Series
Abrasive- ness
Corrosive- ness
Flowability Special Notes
Saltpeter (Potassium Nitrate) -1/2^76 30B^ 1.2^ C4^ II^ II^ I^ H Sand, Dry Bank, Damp
-1/8 110-130 15 2.8 C4 III I IV
Sand, Dry Bank, Dry
-1/8 90-110 15 1.7 C4 III I III
Sand, Foundry, Prepared -1/8^90 15 3.0^ C4^ III^ I^ III Sand, Foundry, Shakeout -3^ 90-100^15 3.0^ D4^ III^ I^ III^ R Sand, Silica, Dry -1/8 90-100 15 2.0 C4 III I II Sand, Silica, Resin Coated
-1/8 104 15 2.0 C4 III I II
Sand, Zircon, Resin Coated
-100M 115 15 2.3 C4 III I II
Sawdust, Dry -1/8 10-13 30A 1.4 A1-A2-A3 I I IV M, P Sea-Coal -1/8 65 30B 1.0 B4 II I III Sesame Seed -1/8 27-41 30B 0.6 B4 II I II V Shale, Crushed -1/2 85-90 30B 2.0 B4 ll I III Shellac, Powdered or Granulated
-1/8 31 30A 0.6 A2 I I III J, V
Silica Flour -1/64 80 30B 1.5 B4 II I IV Silica Gel (Silicic Acid) -3^45 15 2.0^ C4^ III^ I^ III^ C, E, K, M Silicon Dioxide (Quartz) -1/2^ 80-90^15 2.5^ C4^ III^ I^ II Slag, Blast Furnace, Crushed
-3 130-180 15 2.4 D4 III I III Q
Slag, Furnace, Granular, Dry
-1/2 60-65 15 2.2 A1-A2-A3 III I III
Slaked Lime (Lime, Hydrated) -1/8^40 30A^ 0.8^ B4^ I^ I^ III^ F, G, P Slate, Crushed -1/2 80-90 30B 2.0 B4 II I III Slate, Ground -1/8 82-85 30B 1.6 B4 II I III Sludge, Sewage, Dry
Irregular 40-50 30B 0.8 D4 II II IV O
Sludge, Sewage, Dry, Ground
-1/8 45-55 30B 0.8 D4 II II IV
Snow, Fresh -1/8 5-12 30A 0.4 A2 I I IV Snow, Packed +1/2 15-35 30A 0.8 B1 I I IV Soap, Beads or Granules -1/8^ 15-35^ 30A^ 0.6^ A1-A2-A3^ I^ I^ III^ K, M Soap, Chips -1/2 15-25 30A 0.6 A1-A2-A3 I I III K, M Soap, Detergent -1/8 15-50 30A 0.8 A1-A2-A3 I I III A, K Soap, Flakes -1/8 5-15 30A 0.6 A1-A2-A3 I I III K, M, P, Q Soap, Powder -1/8 20-30 30A 0.9 A1-A2-A3 I I II P Soapstone (Talc) -200M 40-50 30A 2.0 A1-A2-A3 I I IV G, P, Q
bUlK MaTeRIal Table
DesignEngineering Manufacturing
Bulk Material
Maximum Particle Size (in.)
Bulk Density (lbs/ft³)
Trough Loading
Material Factor (MF)
Component /Bearing Series
Abrasive- ness
Corrosive- ness
Flowability Special Notes
Soda Ash, Heavy (Sodium Carbonate)
-1/8 55-65 30B 1.0 B4 II I III
Soda Ash, Light (Sodium Carbonate)
-1/64 20-35 30B 0.8 B4 II I III G, Q, V
Sodium Aluminate (Ground)
-1/8 72 30B 1.0 B4 II I III
Sodium Aluminum Sulphate -100M^75 30B^ 1.0^ B4^ II^ I^ III^ • Sodium Bicarbonate (Baking Soda)
-100M 40-55 45 0.6 A2 I I II
Sodium Nitrate -3 70-80 45 1.2 B1-B2 I III II H Sodium Phosphate -1/8 50-60 30A 0.9 A1-A2 I I III Sodium Sulfate, Dry, Coarse
-1/8 85 30B 2.1 C4 II II III M
Sodium Sulfate, Dry, Pulverized -1/8^ 65-85^ 30B^ 1.7^ C4^ II^ II^ III^ M Sodium Sulfite -1/8 96 30B 1.5 B4 II I IV P Sorghum Seed (Milo or Kafir) -1/8^ 32-36^ 30A^ 0.5^ A1-A2-A3^ I^ I^ II Soybean, Dust -1/64 25-35 30A 2.0 A1-A2-A3 I I III G, H Soybean, Cake -1/2 40-43 30A 1.0 A1-A2-A3 I I III O, V Soybean, Cracked -1/2 30-40 30B 0.6 B4 II I III H, O, V Soybean, Flakes, Raw -1/2^ 15-35^ 30A^ 0.8^ A1-A2-A3^ I^ I^ III^ Q, V Soybean, Flakes, Spent -1/4^ 18-20^ 30A^ 0.6^ A2^ I^ I^ II^ Q, V Soybean, Flour -1/64 25-35 30A 1.0 A1-A2-A3 I I III G, H, V Soybean, Meal, Cold
-1/8 35-45 30A 0.6 A1-A2-A3 I I III V
Soybean, Meal, Hot -1/8 40 30A 0.6 D3 I II III Soybean, Whole -1/2 45-50 30B 1.0 B4 II I II H, O Starch -1/64 25-50 45 1.0 A1-A2-A3 I I I G, H, V, • Steel Turnings (Chips), Crushed
-3 100-150 30B 3.0 D4 II I IV N, O
Stibium (Antimony) -100M • 30A 1.6 B4 II I II •
Sugar, Powdered -100M 50-60 30A 0.8 A2 I I III
H, J, P,
V, •
Sugar, Raw, Cane -1/8 55-65 30A 1.5 A2 I I III H, J, P Sugar, Refined, Granulated, Dry -1/8^ 50-55^ 30A^ 1.0-1.2^ A2^ I^ I^ III^ H, J, M, V Sugar, Refined, Granulated, Wet
-1/2 55-65 30A 1.4-2.0 A2 I I III P
Sugar Beet, Pulp, Dry
-1/2 12-15 30B 0.9 B4 II I II H, •
bUlK MaTeRIal Table
