Basic Description
Spiral silos, also known as spiral-jointed steel silos or spiral-jointed steel silos, are the mainstream standardized grain storage equipment in modern grain storage.
These silos utilize specialized forming equipment to continuously roll hot-dip galvanized steel strips on-site, forming a spiral joint. Unlike traditional bolt-assembled steel silos, they have no bolt holes, creating an integrated, sealed steel grain storage structure.
The entire equipment employs a high-specification hot-dip galvanizing anti-corrosion process, with a standard zinc coating weight of 275g/㎡ or higher. It is corrosion-resistant, anti-aging, and suitable for various complex storage environments.
The overall structure is highly integrated and stable, with low cost. It is specifically designed for the large-scale, safe, and long-term storage of bulk grains such as wheat, corn, rice, and soybeans, widely replacing traditional brick-and-mortar grain silos and ordinary assembled steel silos.
Parameters
| Silo Dia. | Model | Layers | Silo Volume(m³) | Total Volume(m³) | Total Loading ability(Tones) | Silo Height H1(m) | Roof Height H2(m) | Total Height H(m) |
| 4.584 S=16.5 | TC04503 | 3 | 57 | 63 | 47 | 3.43 | 1.35 | 4.78 |
| TC04504 | 4 | 72 | 81 | 61 | 4.55 | 1.35 | 5.9 | |
| TC04505 | 5 | 94 | 100 | 75 | 5.67 | 1.35 | 7.02 | |
| TC04506 | 6 | 112 | 118 | 89 | 6.79 | 1.35 | 8.14 | |
| TC04507 | 7 | 131 | 137 | 103 | 7.91 | 1.35 | 9.26 | |
| TC04508 | 8 | 149 | 155 | 117 | 9.03 | 1.35 | 10.38 | |
| TC04509 | 9 | 167 | 174 | 130 | 10.15 | 1.35 | 11.5 | |
| TC04510 | 10 | 186 | 192 | 144 | 11.27 | 1.35 | 12.62 | |
| 5.500 S=23.75 | TC05504 | 4 | 108 | 120 | 90 | 4.55 | 1.62 | 6.17 |
| TC05505 | 5 | 94 | 147 | 110 | 5.67 | 1.62 | 7.29 | |
| TC05506 | 6 | 112 | 173 | 130 | 6.79 | 1.62 | 8.41 | |
| TC05507 | 7 | 131 | 200 | 150 | 7.91 | 1.62 | 9.53 | |
| TC05508 | 8 | 149 | 226 | 170 | 9.03 | 1.62 | 10.65 | |
| TC05509 | 9 | 167 | 253 | 190 | 10.15 | 1.62 | 11.77 | |
| TC05510 | 10 | 186 | 280 | 210 | 11.27 | 1.62 | 12.89 | |
| TC05511 | 11 | 204 | 306 | 230 | 12.39 | 1.62 | 14.01 | |
| 6.417 S=32.34 | TC06405 | 5 | 183 | 203 | 152 | 5.67 | 1.88 | 7.55 |
| TC06406 | 6 | 112 | 239 | 179 | 6.79 | 1.88 | 8.67 | |
| TC06407 | 7 | 131 | 275 | 207 | 7.91 | 1.88 | 9.79 | |
| TC06408 | 8 | 149 | 312 | 234 | 9.03 | 1.88 | 10.91 | |
| TC06409 | 9 | 167 | 348 | 261 | 10.15 | 1.88 | 12.03 | |
| TC06410 | 10 | 183 | 384 | 288 | 11.27 | 1.88 | 13.15 | |
| TC06411 | 11 | 204 | 420 | 315 | 12.39 | 1.88 | 14.27 | |
| TC06412 | 12 | 223 | 457 | 342 | 13.51 | 1.88 | 15.39 | |
| 7.334 S=42.24 | TC07306 | 6 | 287 | 316 | 237 | 6.79 | 2.15 | 10.06 |
| TC07307 | 7 | 334 | 363 | 272 | 7.91 | 2.15 | 11.18 | |
| TC07308 | 8 | 381 | 411 | 308 | 9.03 | 2.15 | 11.18 | |
| TC07309 | 9 | 429 | 458 | 343 | 10.15 | 2.15 | 12.3 | |
| TC07310 | 10 | 476 | 505 | 379 | 11.27 | 2.15 | 13.42 | |
| TC07311 | 11 | 523 | 553 | 414 | 12.39 | 2.15 | 14.54 | |
| TC07312 | 12 | 571 | 600 | 450 | 13.51 | 2.15 | 15.66 | |
| TC07313 | 13 | 618 | 647 | 485 | 14.63 | 2.15 | 16.78 | |
| 8.25 S=53.46 | TC08207 | 7 | 423 | 465 | 349 | 7.91 | 2.41 | 10.32 |
| TC08208 | 8 | 483 | 525 | 394 | 9.03 | 2.41 | 11.44 | |
| TC08209 | 9 | 543 | 585 | 439 | 10.15 | 2.41 | 12.56 | |
| TC08210 | 10 | 602 | 645 | 483 | 11.27 | 2.41 | 13.68 | |
| TC08211 | 11 | 662 | 705 | 528 | 12.39 | 2.41 | 14.8 | |
| TC08212 | 12 | 722 | 764 | 573 | 13.51 | 2.41 | 15.92 | |
| TC08213 | 13 | 782 | 824 | 618 | 14.63 | 2.41 | 17.04 | |
| TC08214 | 14 | 842 | 884 | 663 | 15.75 | 2.41 | 18.16 | |
| 9.167 S=66.00 | TC09107 | 7 | 522 | 580 | 435 | 7.91 | 2.68 | 10.59 |
| TC09108 | 8 | 596 | 654 | 490 | 9.03 | 2.68 | 11.71 | |
| TC09109 | 9 | 670 | 728 | 546 | 10.15 | 2.68 | 12.83 | |
| TC09110 | 10 | 744 | 802 | 601 | 11.27 | 2.68 | 19.95 | |
| TC09111 | 11 | 818 | 876 | 657 | 12.39 | 2.68 | 15.07 | |
| TC09112 | 12 | 892 | 950 | 712 | 13.51 | 2.68 | 16.19 | |
| TC09113 | 13 | 966 | 1024 | 768 | 14.63 | 2.68 | 17.31 | |
| TC09114 | 14 | 1040 | 1097 | 823 | 15.75 | 2.68 | 18.43 | |
| 10.084 S=79.86 | TC10008 | 8 | 721 | 798 | 599 | 9.03 | 2.94 | 11.97 |
| TC10009 | 9 | 811 | 887 | 666 | 10.15 | 2.94 | 13.09 | |
| TC10010 | 10 | 900 | 977 | 733 | 11.27 | 2.94 | 14.21 | |
| TC10011 | 11 | 989 | 1066 | 800 | 12.39 | 2.94 | 15.33 | |
| TC10012 | 12 | 1079 | 1156 | 867 | 13.51 | 2.94 | 16.45 | |
| TC10013 | 13 | 1168 | 1245 | 934 | 14.63 | 2.94 | 17.57 | |
| TC10014 | 14 | 1258 | 1335 | 1001 | 15.75 | 2.94 | 18.69 | |
| TC10015 | 15 | 1347 | 1424 | 1068 | 16.87 | 2.94 | 19.81 | |
| 11.001 S=95.05 | TC11009 | 9 | 965 | 1065 | 799 | 10.15 | 3.21 | 13.36 |
| TC11010 | 10 | 1071 | 1171 | 879 | 11.27 | 3.21 | 14.48 | |
| TC11011 | 11 | 1178 | 1278 | 958 | 12.39 | 3.21 | 15.6 | |
| TC11012 | 12 | 1284 | 1384 | 1038 | 13.51 | 3.21 | 16.72 | |
| TC11013 | 13 | 1391 | 1491 | 1118 | 14.63 | 3.21 | 17.84 | |
| TC11014 | 14 | 1497 | 1597 | 1198 | 15.75 | 3.21 | 18.96 | |
| TC11015 | 15 | 1603 | 1704 | 1278 | 16.87 | 3.21 | 20.08 | |
| TC11016 | 16 | 1710 | 1810 | 1358 | 17.99 | 3.21 | 21.2 | |
| 11.917 S=111.54 | TC11910 | 10 | 1257 | 1385 | 1039 | 11.27 | 3.47 | 14.74 |
| TC11911 | 11 | 1178 | 1510 | 1132 | 12.39 | 3.47 | 15.86 | |
| TC11912 | 12 | 1284 | 1635 | 1226 | 13.51 | 3.47 | 16.98 | |
| TC11913 | 13 | 1391 | 1760 | 1320 | 14.63 | 3.47 | 18.1 | |
| TC11914 | 14 | 1497 | 1885 | 1414 | 15.75 | 3.47 | 19.22 | |
| TC11915 | 15 | 1603 | 2010 | 1507 | 16.87 | 3.47 | 20.34 | |
| TC11916 | 16 | 1710 | 2135 | 1601 | 17.99 | 3.47 | 21.46 | |
| TC11917 | 17 | 1816 | 2259 | 1695 | 19.11 | 3.47 | 22.58 | |
| 12.834 S=129.36 | TC12910 | 10 | 1458 | 1617 | 1213 | 11.27 | 3.73 | 15 |
| TC12911 | 11 | 1603 | 1762 | 1321 | 12.39 | 3.73 | 16.12 | |
| TC12912 | 12 | 1748 | 1907 | 1430 | 13.51 | 3.73 | 17.24 | |
| TC12913 | 13 | 1893 | 2052 | 1539 | 14.63 | 3.73 | 18.36 | |
| TC12914 | 14 | 2037 | 2197 | 1647 | 15.75 | 3.73 | 19.48 | |
| TC12915 | 15 | 2182 | 2341 | 1756 | 16.87 | 3.73 | 20.6 | |
| TC12916 | 16 | 2327 | 2485 | 1865 | 17.99 | 3.73 | 21.72 | |
| TC12917 | 17 | 2472 | 2631 | 1973 | 19.11 | 3.73 | 22.84 |
Main Components
The grain spiral galvanized silo adopts a modular integrated structure, consisting of four main parts: the main silo body, the foundation structure, the supporting grain storage system, and the auxiliary protection system. These modules work together to ensure grain storage safety and stable equipment operation:
Main Silo Body
This is the core grain storage structure of the silo. It is formed on-site by spiral rolling and interlocking hot-dip galvanized steel strips. The silo wall has continuous spiral reinforcing ribs, eliminating the need for additional reinforcement components. The wall thickness is designed according to the grain storage pressure gradient, with a thickness of 6-10mm in the lower pressure-bearing area. The thickness increases reasonably from top to bottom, evenly distributing the lateral pressure on the grain and preventing silo deformation. The entire structure is seamless with no bolt joints, providing excellent sealing.
Foundation Structure
A reinforced concrete rigid foundation is used, suitable for flat ground-based structures. Dimensions and load-bearing specifications can be customized according to geological conditions and silo tonnage. The foundation has high flatness and strong load-bearing capacity, effectively distributing the overall load of the silo body and grain, preventing settlement and tilting, and is suitable for different site conditions such as plains, coastal areas, and deserts.
Intelligent Grain Storage Supporting System
Includes grain inlet and outlet conveying equipment, ventilation and cooling system, circulating fumigation system, grain condition monitoring system, and drying and dehumidification system. It can monitor the temperature and humidity inside the silo, grain pile temperature, and pest situation in real time, automatically completing ventilation, temperature regulation, dehumidification, and pest control operations to achieve green, intelligent, and scientific grain storage.
Auxiliary Protection System
Covering the silo roof with rain and dust protection, maintenance ladder, safety railings, ventilation openings, pressure relief devices, and lightning protection grounding devices. It has functions such as rain protection, dust protection, lightning protection, pressure relief, and personnel safety maintenance, comprehensively ensuring the long-term safe and stable operation of the silo.
Core Advantages
One-piece molding, extremely strong sealing
Adopting a continuous spiral seam process, there are no bolt holes or splicing gaps, completely solving the problems of air leakage, moisture return, and dust ingress in traditional assembled silos. 1. Excellent airtightness meets the requirements of controlled atmosphere storage and closed fumigation operations, effectively isolating external moisture, mold, and impurities, significantly reducing the probability of grain mold, clumping, and insect infestation, making it suitable for long-term safe grain storage.
Stable structure and outstanding load-bearing capacity
The spiral seams of the silo wall form continuous annular reinforcing ribs, equivalent to an integral reinforced structure, greatly improving circumferential tensile strength and vertical load-bearing capacity, and can stably withstand the lateral pressure of large-capacity grain piles. The equipment can withstand winds up to level 12 and earthquakes up to level 8, resisting extreme weather and geological conditions such as typhoons, rainstorms, and earthquakes, and is suitable for complex working conditions such as coastal areas, windy areas, and high altitudes.
Corrosion-resistant and durable with a long service life:
Customized hopper inclination angles fit multiple granular grains. Grain is discharged completely by gravity without manual sweeping or extra silo cleaning machines, achieving high discharging efficiency and extremely low residual grain. It fundamentally solves mildew and cross contamination risks caused by leftover grain inside flat bottom silos, making it especially suitable for high quality grain and feed material storage & turnover.
Highly Efficient Construction and Cost-Effective:
The entire construction process is mechanized on-site, eliminating the need for complex welding and assembly procedures. This results in a short construction period and low labor costs. The equipment is lightweight, requiring less stringent foundation loads, and its civil engineering costs are significantly lower than traditional brick-and-mortar grain silos, making it suitable for large-scale storage construction.
Intelligent Grain Storage with Low Loss Rate:
Equipped with a complete intelligent grain storage system, it enables real-time control of the internal environment and 24/7 monitoring of grain conditions. Precise temperature and humidity control effectively inhibits grain respiration loss and pest infestation, resulting in significantly lower grain storage losses compared to traditional storage methods, ensuring stable grain quality.
Application Scenarios
1. National and Local Grain Reserve Scenarios:
Suitable for central and local grain reserves and emergency grain reserve bases, meeting the long-term safety reserve needs of staple grains such as wheat, corn, rice, and soybeans. Leveraging its high sealing and stability characteristics, it ensures the year-round quality of reserve grains, aligning with the construction of the national grain security reserve system.
2. Grain Processing Enterprise Scenarios:
Widely used in flour mills, rice mills, grain and oil processing plants, feed mills, and breweries for raw grain storage and temporary storage of finished grain and oil products. It enables bulk raw material storage and on-demand retrieval, adapting to the continuous and large-scale production rhythms of enterprises.
3. Port Logistics Transit Scenarios:
Suitable for grain transshipment, temporary storage, and turnover operations in ports, grain logistics parks, and distribution centers. It features rapid construction, large capacity, and good sealing, meeting the high-frequency logistics needs of bulk grain entry and exit, short-term storage, and cross-border transshipment.
4. Large-Scale Agricultural Planting Scenarios:
Applicable to large family farms, agricultural cooperatives, and large-scale planting bases for centralized storage of autumn harvest grain. It solves the problems of mold, high losses, and land occupation associated with open-air grain storage by farmers, achieving on-site grain storage, ensuring quality and increasing yields.
5.Special Bulk Material Storage Scenarios
In addition to grains, it can also be used for the sealed storage of dry bulk materials such as feed pellets, miscellaneous grains, and oilseeds. With its excellent anti-corrosion, sealing, and moisture-proof properties, it is suitable for the storage needs of multiple industries such as agriculture, animal husbandry, and food processing.
