
COBAN grain silos are designed to ensure safe storage, stable ventilation, and long-term grain preservation under different climate conditions. Each silo system can be customized based on capacity, grain type, and project requirements for optimal storage performance and reliability.

Product Type:Oat Flat Bottom Silo
Capacity:1,000–10,000T+
Silo Diameter:10.084–25.668 m
Total Height:18.69–30.60 m
Application:Oat & Bulk Grain Storage
An Oat Flat Bottomed Silo is a cylindrical steel storage silo designed for the long-term storage of oats and other bulk grains. Compared with small storage bins or hopper bottom silos, a flat bottom grain silo is particularly suitable for medium- and large-capacity oat storage where storage volume, aeration, temperature control, and operating cost are important.
For oat storage projects, the silo itself is only one part of the system. A reliable solution normally combines the steel silo, grain conveying equipment, aeration system, temperature monitoring, level monitoring, dust control, and mechanical unloading system.
COBAN supplies flat bottom steel silos from approximately 1,000 tons to 10,000 tons and larger customized capacities, making them suitable for oat processors, grain traders, feed mills, agricultural enterprises, and commercial grain storage facilities.
Oats are commonly stored for extended periods after harvesting, cleaning, or processing. During storage, moisture migration, temperature changes, and poor aeration can affect grain quality.
For this reason, an oat storage silo should be selected according to more than just storage capacity.
The key factors normally include:
For large-volume and long-term oat storage, a flat bottom silo provides a practical balance between storage capacity, structural strength, equipment integration, and investment cost.
A COBAN oat flat bottom silo is a cylindrical galvanized steel structure engineered for bulk grain storage.

The silo wall is assembled from galvanized steel sheets and reinforced according to the silo diameter, height, stored grain load, wind load, seismic conditions, and local engineering requirements.
The galvanized steel construction provides corrosion resistance and allows the silo to be installed as part of a complete grain storage system.
The flat bottom provides a large storage volume and is particularly suitable for high-capacity oat storage.
Because the bottom does not require a large hopper structure, the available internal volume can be efficiently used for bulk grain storage.
For large silos, the bottom can be equipped with mechanical unloading equipment such as a sweep auger, screw conveyor, chain conveyor, or other discharge systems according to the project layout.
The galvanized steel roof protects stored oats from rain and external environmental conditions.
The roof can be configured with:
Aeration is one of the most important parts of an oat storage system.
A flat bottom silo can be equipped with a forced-air aeration system to move air through the stored grain mass. The system can be designed according to silo diameter, grain depth, local climate, and required airflow.
For oats stored in warm or humid regions, proper aeration helps operators manage grain temperature and reduce the risk of moisture-related deterioration.
COBAN can integrate temperature monitoring cables and sensors into the silo.
Operators can monitor temperature at different locations inside the grain mass and identify abnormal temperature changes before they develop into a larger storage problem.
For commercial oat storage, temperature monitoring is especially useful when the storage period is several months.
Flat bottom silos are normally designed with a mechanical discharge system because the stored oats do not completely discharge by gravity.
Depending on the capacity and required discharge rate, the system can use:
The unloading system can be connected directly to the cleaning, processing, conveying, or packaging section of the facility.
The following COBAN flat bottom steel silo models provide typical reference dimensions for large-capacity grain storage.
Important: Silo capacity is normally calculated according to storage volume and the bulk density of the stored grain. Oat bulk density varies according to oat variety, moisture content, cleaning condition, and storage method. Therefore, the final silo capacity should be confirmed based on the customer’s actual oat density and filling conditions.
| Storage Capacity | Model | Diameter | Total Height | Reference Volume* |
|---|---|---|---|---|
| 1,000 Ton | TCK10014 | 10.084 m | 18.69 m | 1,335 m³ |
| 1,500 Ton | TCK11915 | 11.918 m | 20.34 m | 2,009 m³ |
| 2,000 Ton | TCK13715 | 13.750 m | 20.87 m | 2,701 m³ |
| 2,500 Ton | TCK15514 | 15.584 m | 20.30 m | 2,467 m³ |
| 3,000 Ton | TCK15518 | 15.584 m | 24.78 m | 4,145 m³ |
| 5,000 Ton | TCK18321 | 18.334 m | 28.60 m | 6,693 m³ |
| 8,000 Ton | TCK24718 | 24.751 m | 26.99 m | 10,879 m³ |
| 10,000 Ton | TCK25621 | 25.668 m | 30.60 m | 13,484 m³ |
*Reference volume is based on the existing COBAN parameter table and a reference bulk density of 0.75 t/m³. Actual oat storage capacity should be recalculated according to the customer’s oat variety, moisture content, bulk density, and operating conditions.
This is one of the first questions customers ask when selecting an oat storage silo.
The answer depends on bulk density rather than silo volume alone.
For example, a silo with a storage volume of approximately 6,693 m³ does not necessarily store the same tonnage of every grain. Wheat, maize, barley, oats, rice, and other grains have different bulk densities.
For oat projects, COBAN normally confirms:
Required oat storage capacity → oat bulk density → required silo volume → silo diameter and height → aeration → unloading capacity
This approach is more accurate than simply selecting a silo based on nominal tons.
A complete oat storage project normally includes more than the silo body.
A typical system can be arranged as:
Truck Receiving → Pre-Cleaning → Bucket Elevator → Oat Flat Bottom Silo → Aeration & Temperature Monitoring → Unloading → Conveying → Processing / Packing
Depending on the customer’s operation, additional equipment can include:
This allows the oat silo to become part of a complete grain handling system rather than an isolated storage unit.

Both silo types can be used for oats, but they serve different operating requirements.
| Requirement | Flat Bottom Silo | Hopper Bottom Silo |
|---|---|---|
| Large-scale oat storage | Excellent | Good |
| Long-term storage | Excellent | Good |
| 1,000–10,000+ ton storage | Recommended | Less economical |
| Storage cost per ton | Lower | Higher |
| Fast gravity discharge | Limited | Excellent |
| Frequent filling and emptying | Good | Excellent |
| Mechanical unloading required | Yes | Usually less |
| Large commercial grain storage | Recommended | Application dependent |
For a grain trader, oat processor, or large agricultural storage facility that needs to hold several thousand tons for an extended period, a flat bottom oat silo is normally the more economical choice.
For smaller storage volumes with frequent loading and unloading, a hopper bottom silo may be worth considering.
Long-term oat storage requires control rather than simply keeping the grain inside a closed container.
The main storage conditions that should be managed are:
Moisture
Oats should enter storage at a moisture level suitable for the planned storage period and local environmental conditions.
If incoming oats have excessive moisture, a grain dryer should be installed before the silo.
Temperature
Temperature changes inside the grain mass can indicate moisture migration or localized grain deterioration.
A temperature monitoring system allows operators to identify these changes earlier.
Aeration
Aeration fans can be used to reduce grain temperature and maintain more uniform storage conditions.
The required airflow should be designed according to the silo dimensions, grain type, local climate, and storage objective.
Grain Cleanliness
Foreign materials and excessive fines can restrict airflow and create localized problem areas.
For commercial oat storage, pre-cleaning before silo filling is therefore an important part of the complete system.
Oat Processing Plants
For an oat processing plant, the silo can be used as a raw material buffer between receiving and processing.
Multiple silos can be installed to separate oats according to:
Grain Trading Companies
For grain traders, a large-capacity oat storage silo allows oats to be stored after harvest and supplied according to market demand.
Multiple silos also make inventory management easier.
Feed Mills
Oats can be stored as one of the raw materials in a feed production facility.
The silo can be connected to the cleaning, conveying, batching, and feed processing systems.
Farms and Agricultural Enterprises
For large farms, a flat bottom steel silo provides a centralized storage solution after harvesting, especially where several hundred or several thousand tons of oats need to be stored.
Large Storage Capacity
COBAN flat bottom silos are available in capacities such as 1,000T, 1,500T, 2,000T, 3,000T, 5,000T, 8,000T, and 10,000T, with larger capacities available through customized engineering.
Designed Around the Grain
The final silo configuration can be adjusted according to oat bulk density, storage period, local climate, and project requirements.
Integrated Grain Handling
The silo can be connected with conveyors, elevators, cleaning machines, dryers, aeration equipment, and discharge systems.
Temperature and Aeration Management
Temperature monitoring and aeration can be incorporated into the storage design to help maintain stable grain conditions during long-term storage.
Suitable for Large Grain Storage Projects
The flat bottom structure is particularly suitable for commercial oat storage centers where several silos may be installed together.

For a typical commercial oat storage project, we recommend evaluating the following five systems together:
| System | Main Function |
|---|---|
| Storage Silo | Bulk oat storage |
| Aeration System | Grain cooling and storage condition management |
| Temperature Monitoring | Detect temperature changes inside grain |
| Conveying System | Transfer oats between receiving, storage, and processing |
| Cleaning & Drying | Prepare oats for safe storage |
A properly designed system reduces the risk of treating the silo as a standalone product. In practice, the silo capacity, grain dryer, aeration system, conveying capacity, and discharge rate should be matched as one system.
Before selecting an oat silo, send us the following information:
With this information, the silo diameter, height, aeration system, unloading equipment, and conveying capacity can be matched to the actual oat storage requirement.
If you are planning an oat storage silo project, do not select the silo only by nominal tonnage.
Send COBAN your oat storage capacity + project location + oat moisture + required storage period + daily loading/unloading capacity.
We can then recommend the appropriate flat bottom steel silo size, silo quantity, aeration system, temperature monitoring system, and grain conveying configuration for your project.
Typical capacity range: 1,000T–10,000T+
Storage material: Oats, wheat, maize, barley, rice, soybean and other bulk grains
Silo type: Galvanized steel flat bottom silo
Application: Oat storage, grain trading, oat processing, feed mills and commercial grain storage
Tell us your capacity, grain type, and project location. We will design a turnkey solution for you.