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Product Description
Our hot-dip galvanized steel grain silos are engineered for long-lasting durability and all-weather resistance, ideal for the bulk storage of various grains, including wheat, maize (corn), paddy rice, soybeans, sunflower seeds, sorghum, barley, and peanuts. With a designed lifespan of 30 to 50 years, these silos are built to ensure safe and efficient storage over the long term.
Applications
Double-sided galvanized grain silos are widely applied in:
Wheat and maize flour milling plants
Rice processing lines
Oilseed processing factories
Feed mills and livestock farms
Grain collection and trading depots
Breweries and malt processing plants
Optional features such as pre-cleaning systems, grain dryers, automatic ventilation, and temperature/moisture monitoring can be added to create a fully automated and climate-controlled storage solution.
Main Components of a Grain Storage Silo System
Grain silos are designed not only for storage but also for maintaining grain quality through integrated systems. Below are the key parts of a complete grain silo setup:
Pre-cleaning System
Removes large impurities such as straw, stones, and dust before grain enters the silo to prevent contamination and improve storage safety.
Drying System
Reduces moisture content in the grain to an optimal level, preventing mold and spoilage during long-term storage.
Monitoring & Ventilation System
Level Monitor: Tracks the amount of grain stored in real-time.
Temperature Controller: Monitors and adjusts internal temperature to maintain ideal storage conditions.
Ventilation System: Ensures proper airflow to avoid hotspots and condensation inside the silo.
Silo Structure
Silo Roof: Made of high-strength galvanized steel sheets with access ladders and vents.
Silo Body: Corrugated galvanized steel plates, bolted together for strength and durability.
Silo Bottom: Can be flat or conical, depending on discharge needs.
Auxiliary Equipment: Includes ladders, handrails, inspection doors, and platforms for easy access and maintenance.
| Material | Hot galvanized steel | |
| Capacity | 500T | 1000T |
| Diameter(meter) | 7.9 | 10.39 |
| layer | 11 | 13 |
| Installation | Support overseas installation Now we have more than 20 engineers in Africa |
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| Delivery Time | 60-90days | |
| Features | Automatic-flow unloading; Hopper angles can be 45° and 60°; Easily to be installed; Fewer grain residues in steel-insulated rice storage silo; Hopper structure prevents loss of time and cost during the unloading period. |
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| Technology | Advanced thermal curing mold release which is used in the Aerospace Manufacturing Field, is the Same Thickness whole silo, No bubble. Ventilation system Level indicator Temperature system |
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Example Models
500-ton Grain Silo: Suitable for medium-sized milling or storage operations, equipped with complete ventilation and monitoring system.
1,000-ton Grain Silo: Ideal for larger-scale operations or as part of a complete flour milling plant, supports integration with automated handling systems.
Material Quality
Made with high-strength SGH hot-dip galvanized steel plates.
Galvanization coating thickness ranges from Z275 to Z600, ensuring excellent corrosion resistance and long service life.
Corrugated Plate Design
Corrugated plates are produced via a fully automated, computer-controlled production line, adopting internationally advanced manufacturing technology.
Ripple spacing: 68mm (small ripple design), which enhances the silo's structural integrity and wind resistance.
Bolt and Seal System
Corrugated plates with thickness greater than or equal to 2.5mm use four rows of high-strength 10.9-grade bolts for secure fastening.
Bolts are sealed using waterproof rubber pads and aerospace-grade mortar to ensure tightness and prevent leakage.
Sealing around the corrugated plate with aerospace rubber enhances weatherproofing and airtightness.
Material Specification
Constructed with Z275-Z600 high-quality SGH series high-strength hot-dip galvanized steel plates, offering excellent durability, corrosion resistance, and a service life of up to 30-50 years.
Stiffener Technology
Stiffeners are produced using a fully automated microcomputer-controlled line that ensures high precision and international-standard processing quality.
Features an advanced "W"-shaped support column design, 365mm in width, and treated with hot-dip galvanizing for enhanced structural strength and long-term corrosion protection.
High-Strength Bolt Assembly
The silo cylinder is assembled using super-strength 10.9-grade bolts, ensuring a solid and secure connection for all structural components, suitable for large-capacity grain storage.
This is a 5*3500T silo we provided to a customer in Zimbabwe. The silo is equipped with a 500t/d maize flour mill.
Other silo projects
Our silos are equipped with pre-cleaning and drying machines to effectively prevent grain and flour from spoiling500T*2 silos in Angola1500T silo in Kenya500T*4 silos in Ethiopia100-10,000 Ton Grain Storage Silo System with Turnkey Project Support
Hongdefa offers grain silos with capacities ranging from 100 tons to 10,000 tons, available in various discharge types including:
Flat bottom
Hopper/cone bottom
Fluidized discharging
Multi-outlet discharging
We provide complete turnkey project solutions, including:
Process and civil engineering design
Automated control system integration
Manufacturing, installation, and commissioning of supporting equipment such as:
Grain elevators and conveyors
Pre-cleaning and cleaning machines
Magnetic separators
Moisture and temperature control systems
Dryers and fumigation systems
Cold storage and ventilation
Dust collection units
Metering and weighing systems
We also offer:
Personnel training
Ongoing technical support
Hongdefa's silo systems are ideal for storing wheat, maize, paddy, soybeans, sunflower seeds, sorghum, barley, peanuts, and other grains, ensuring long-term protection, operational efficiency, and easy integration into modern grain handling plants.
Shijiazhuang Hongdefa Machinery Co., Ltd. is located in Wumashan Industrial Area, Zanhuang County, Shijiazhuang City, just a 4-hour drive from Beijing.
We are a professional manufacturer and exporter of maize milling machines and wheat flour milling machines with packing machines, with a strong industry presence since 1982. With decades of experience, we have earned a solid reputation for quality, reliability, and international service.Hongdefa has a professional team of around 100 skilled workers, a 30,000 m2 modern manufacturing base, and a 1,000 m2 research and development center.
Our advanced facilities and experienced team ensure high-quality production and continuous innovation in grain milling technology.
Our engineering team includes over 30 highly qualified engineers, each with more than 15 years of experience in flour mill design, manufacturing, and on-site installation.
Our sales managers also bring over 10 years of international sales experience. They have visited more than 20 countries, meeting clients face-to-face, providing professional consultation, and helping establish overseas offices to better serve our global customers.
We provide lifelong after-sales support for all our maize milling machines.
Currently, we have:
Warehouses in Zambia and Kenya
A local office in Ethiopia
Authorized agents in DR Congo, Australia, Yemen, Burkina Faso, and other countries
These overseas service points enable us to offer quick response, local spare parts supply, and technical support, ensuring your production runs smoothly at all times
All our machines and silos are manufactured to the highest quality standards and have passed international certifications, including ISO, CE, BV, SGS, and COC.
These certifications ensure our equipment meets global requirements for safety, reliability, and performance.
5. Loading & Shipping the Machines and silos
The machine and silo will first wrapped with protective film inside and waterproof plastic film outside to prevent moisture and dust.
For orders shipped in less than a full container, wooden crate packing is applied to ensure safety during transport.
Inside the container, the machine and silo will be securely fastened with steel ropes to avoid any movement or damage.
All machines are carefully inspected and reinforced to ensure they arrive at the destination in perfect working condition.
Q1: How will the silos be shipped to my country?
A: We package the silo components securely into standard shipping containers and ship them by sea from Tianjin Port, China. For spare parts, we can deliver them either by air freight or sea, depending on the size, urgency, and type of parts ordered.
Q2: Have you completed silo projects in Africa? Can I visit?
A: Yes, we have successfully completed multiple silo projects across Africa. We also have branch offices in Ruiru (Kenya), Lusaka (Zambia), and Addis Ababa (Ethiopia). Our local staff can accompany you to visit nearby installed silo systems. We have ongoing and completed projects in Kenya, Nigeria, South Africa, Zimbabwe, Rwanda, Tanzania, and more. If you'd like to schedule a visit, please contact us - we're happy to assist.
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