Sanhe-Grain Storage Silo Manufacturer in China | Shijiazhuang, Hebei, China | (+86) 139 3119 1517

Hopper Bottom Grain Storage Bin

Hopper (Cone) Bottom Silos allow grain to flow out by gravity during unloading. The suggested capacity for these silos is typically 10-1000T, based on the silo’s height and diameter.

Hopper bottom grain silos are generally supported by a steel cone structure, although some may have a concrete structure. Compared to flat-bottom grain storage silos, this type of silo requires less transportation equipment.

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Hopper (Cone) Bottom Grain Silo
Grain Storage Silo with Hopper / Cone Bottom

Hopper Silo Advantage

Cone bottom Silo can help us unloading the grain from silo by gravity. Grain Stored inside the silo can be discharged easily through it’s self flow along the cone. After loading, there will be no grain remained in the silo.

And this will save power and to unloading and silo clean. But the silo capacity will not be lower than 1000T each. Different angle will designed according to grains repose angle(maize/corn, wheat, soya, rice, paddy, flour and so on).

Besides grain, the cone bottom silo can also be used for storing other granule stock and powder stocks(such as feed pellet, wood pellet, coal, sand, resin and so on)


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Hopper Storage Silo Composition

Except Auxiliary Equipment, the main hopper storage silo is composed by Radial roof system, Silo cylinder body, Conical Bottom and Support Structure, Ladders and Inspection Doors.

Radial roof system  with 25° Slope angle and rigid design to ensure no water remained or go inside the bin.

Grain Storage Silo Roof
Grain Storage Silo Roof

Roof Structure formed by  Ring beam, Radial Purlin and Circumferential parallel bracelet. Make the roof structure steady enough for bad weather and equipment load. 

Galvanized roof plate(0.8mm-1mm) is joint to roof framework with high strength bolts(Grade 8.8). The whole roof system make the whole grain silo an unity for grain storage while protect the grain from bad weather, humidity, insect, birds and mouse damage.

Hopper /Cone Bottom

Optional Angle 45°  or 60° according to stock’s repose angle(wheat, maize, paddy, soyabean, flour/meal and so on)

Hopper Bottom Grain Storage Silo Diagram
Hopper Bottom Grain Storage Silo Diagram
1000Tx2 Hopper Bottom Grain Storage Silo
2 set 1000T Hopper Bottom Grain Storage Silo

The Cone Bottom is composed by heavy duty hopper and supported steel structure. Jointed With High tense galvanized bolts Grade 8.8. 

Support Steel Structure by Wide edge H Steel to for the upright column and enhanced by cross bracelet for bearing whole silo weight with grain.

Silo Body

Assembly Steel Silo body made by hot galvanized steel plate(G90,275g/m2) punched and rolled in one time to keep the integrity of the plate and accuracy during the installation of the grain silo at site.

Galvanized Grain Storage Silo Wall Plate
Galvanized Grain Storage Silo Wall Plate

Upright Stiffener in optional interior or external and steel plate form an integrity system with high strength and stability for holding the grain.

Interior Stiffener for grain storage Silo
Interior Stiffener for grain storage Silo
External Stiffener for grain Storage silo
External Stiffener for grain Storage silo

High strength galvanized bolts adopted in the joint of the silo to ensure the stability of the grain silo system in use.

Ladders&Inspection Door

Silo Internal and External Ladders for convenient go up for inspection, maintenance.

Safety cage will protect people from dangerous status, besides there are guard rail on the top  roof also for safety protection.

Grain Storage Silo Ladders and Safety Cage
Grain Storage Silo Ladders and Safety Cage on the silo wall

Wheat Hopper Silo Parameter

Hopper Bottom Grain Silo Parameter by Wheat

Silo Parameter(By Wheat,Repose Angle 33o,Bulk density:780kg/m2
Cone Outlet to Ground:1.1m,Zinc Coated 275g/m2
  Flat Bottom Cone Bottom
Model Working Volume Working Capacity Cylinder Height Peak Height Volume With Cone Capacity with Cone Total Height with Cone Ground to Peak
(m3) (t) (m) (m) (m3) (t) (m) (m)
ф4.6*4 72.5 56.55 4.48 5.38 81.45 63.531 6.89 7.99
ф4.6*5 91 70.98 5.6 6.5 99.95 77.961 8.01 9.11
ф4.6*6 109.5 85.41 6.72 7.62 118.45 92.391 9.13 10.23
ф5.5*4 104.7 81.666 4.48 5.6 119.95 93.561 7.42 8.52
ф4.6×7 128 99.84 7.84 8.74 136.95 106.821 10.25 11.35
ф5.5*5 131.3 102.414 5.6 6.72 146.55 114.309 8.54 9.64
ф4.6*8 146.5 114.27 8.96 9.86 155.45 121.251 11.37 12.47
ф5.5*6 157.9 123.162 6.72 7.84 173.15 135.057 9.66 10.76
ф4.6*9 165 128.7 10.08 10.98 173.95 135.681 12.49 13.59
ф4.6*10 183.5 143.13 11.2 12.1 192.45 150.111 13.61 14.71
ф5.5*7 184.5 143.91 7.84 8.96 199.75 155.805 10.78 11.88
ф6.4*5 179.1 139.698 5.6 6.93 203.29 158.5662 9.08 10.18
ф5.5*8 211.1 164.658 8.96 10.08 226.35 176.553 11.9 13
ф6.4*6 215.3 167.934 6.72 8.05 239.49 186.8022 10.2 11.3
ф5.5*9 237.7 185.406 10.08 11.2 252.95 197.301 13.02 14.12
ф6.4*7 251.5 196.17 7.84 9.17 275.69 215.0382 11.32 12.42
ф5.5*10 264.3 206.154 11.2 12.32 279.55 218.049 14.14 15.24
ф5.5*11 290.9 226.902 12.32 13.44 306.15 238.797 15.26 16.36
ф6.4*8 287.7 224.406 8.96 10.29 311.89 243.2742 12.44 13.54
ф7.3*6 278.7 217.386 6.72 8.18 314.35 245.193 9.38 10.48
ф6.4*9 323.9 252.642 10.08 11.41 348.09 271.5102 13.56 14.66
ф7.3*7 326 254.28 7.84 9.3 361.65 282.087 10.63 11.73
ф6.4*10 360.1 280.878 11.2 12.53 384.29 299.7462 14.68 15.78
ф7.3*8 373.3 291.174 8.96 10.42 408.95 318.981 11.75 12.85
ф6.4*11 396.3 309.114 12.32 13.65 420.49 327.9822 15.8 16.9
ф7.3×9 420.6 328.068 10.08 11.54 456.25 355.875 12.87 13.97
ф6.4*12 432.5 337.35 13.44 14.77 456.69 356.2182 16.92 18.02
ф8.3*7 413.6 322.608 7.84 9.52 466.93 364.2054 12.37 13.47
ф7.3*10 467.9 364.962 11.2 12.66 503.55 392.769 13.99 15.09
ф8.3*8 473.5 369.33 8.96 10.64 526.83 410.9274 13.49 14.59
ф7.3*11 515.2 401.856 12.32 13.78 550.85 429.663 15.11 16.21
ф9.1*7 511.3 398.814 7.84 9.73 581.9 453.882 12.84 13.94
ф8.3*9 533.4 416.052 10.08 11.76 586.73 457.6494 14.61 15.71
ф7.3*12 562.5 438.75 13.44 14.9 598.15 466.557 16.23 17.33
ф7.3*13 609.8 475.644 14.56 16.02 645.45 503.451 17.35 18.45
ф8.3*10 593.3 462.774 11.2 12.88 646.63 504.3714 15.73 16.83
ф9.1*8 585.2 456.456 8.96 10.85 655.8 511.524 13.96 15.06
ф8.3*11 653.2 509.496 12.32 14 706.53 551.0934 16.85 17.95
ф9.1*9 659.1 514.098 10.08 11.97 729.7 569.166 15.08 16.18
ф8.3*12 713.1 556.218 13.44 15.12 766.43 597.8154 17.97 1907
ф9.1*10 733 571.74 11.2 13.09 803.6 626.808 16.2 17.3
ф8.3*13 773 602.94 14.56 16.24 826.33 644.5374 19.09 20.19
ф9.1*11 806.9 629.382 12.32 14.21 877.5 684.45 17.32 18.42
ф8.3*14 832.9 649.662 15.68 17.36 886.23 691.2984 2021 21.31
ф10.8*9 802.4 625.872 10.08 12.19 902.4 703.872 15.87 16.97
ф8.3*15 892.8 696.384 16.8 18.48 946.13 737.9814 21.33 22.43
ф9.1*12 880.8 687.024 13.44 15.33 951.4 742.092 18.44 19.54
ф10.8*10 891.8 695.604 11.2 13.31 991.8 773.604 16.99 18.09
ф9.1*13 954.7 744.666 14.56 16.45 1025.3 799.734 19.56 20.66
ф10.8*11 981.2 765.336 12.32 14.43 1081.2 843.336 18.11 19.21
ф9.1*14 1028.6 802.308 5.68 17.57 1099.2 857.376 20.68 21.78
ф10.8*12 1070.6 835.068 13.44 15.55 1170.6 913.068 19.23 20.33
ф9.1*15 1102.5 859.95 16.8 18.69 1173.1 915.018 21.8 22.9
ф9.1*16 1176.4 917.592 17.92 19.81 1247 972.66 22.92 24.02
ф10.8*13 1160 904.8 14.56 16.67 1260 982.8 20.35 21.45
ф9.1*17 1250.3 975.234 19.04 20.93 1320.9 1030.302 24.04 25.14
ф10.8*14 1249.4 974.532 15.68 17.79 1349.4 1052.532 21.47 22.57
ф10.8*15 1338.8 1044.264 16.8 18.91 1438.8 1122.264 22.59 23.69
ф10.8*16 1428.2 1113.996 17.92 20.03 1528.2 1191.996 23.71 24.81
ф10.8*17 1517.6 1183.728 19.04 21.15 1617.6 1261.728 24.83 25.93
ф10.8*18 1607 1253.46 20.16 22.27 1707 1331.46 25.95 27.05
ф10.8*19 1696.4 1323.192 21.28 23.39 1796.4 1401.192 27.07 28.17

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