Company Profile
Founded in 1998 and headquartered in Zhengzhou, Henan Province, China, Zhengzhou Wangu Machinery Co., Ltd. is a state-level High-Tech Enterprise integrating R&D, design, manufacturing, and sales. With over two decades of expertise in grain drying and storage engineering, the company holds more than ten provincial and ministerial-level agricultural machinery promotion certificates. Our products have been exported to Southeast Asia, Africa, South America, the Middle East, and many other regions worldwide.
Product Overview
The Steel Grain Silo is the core product of Wangu Machinery's storage system. It adopts hot-dip galvanized corrugated steel plate with bolted assembly technology, enabling large-scale, safe, and long-term grain storage. The silo body is assembled on-site with bolted hot-dip galvanized corrugated steel plates — no welding required, excellent sealing, fast installation, and relocatable. Two series are available: hopper bottom silo (20–2,715t) and flat bottom silo (800–10,000t), with diameters from φ4.6 to φ12.8m and 90+ size combinations, covering all scenarios from grain procurement stations to national strategic reserves.
Primary Applications
The Steel Grain Silo is designed for large-scale safe grain storage after harvest. It solves critical post-harvest challenges of dampness, mold, rodent damage, and theft from open-air storage, ensuring commercial grain meets quality standards for safe storage and orderly discharge.
Applicable Materials
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Material
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Description
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Paddy / Rice
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Staple in SE Asia, requires moisture & mold protection
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Corn / Maize
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Africa staple, needs rapid silo entry after high-moisture harvest
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Wheat
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Temperate staple, large-volume storage
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Soybean
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Oilseed, requires sealed moisture protection
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Rapeseed
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Fine oilseed, requires airtight insect protection
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Feed Pellets
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Processed feed for short-term turnover
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Cement / Fly Ash
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Flat bottom silo for bulk industrial powder storage
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Hopper Bottom Silo Specifications
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Diameter
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Ring Range
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Capacity Range(t)
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Eave Height(m)
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Best For
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φ4.6m
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4–10
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20–80
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5.2–12.7
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Grain stations, cooperatives
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φ5.8m
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4–12
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40–180
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5.2–15.4
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Small mills
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φ7.3m
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4–14
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80–400
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5.2–17.8
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Mid-size mills, grain depots
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φ8.3m
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4–16
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120–700
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5.2–20.4
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Port transit, large depots
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φ10.08m
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4–18
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200–1000
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5.2–22.6
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Large transit hubs
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φ11m
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4–16
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300–1200
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5.2–22.0
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Processors, reserve bases
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φ11.9m
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4–18
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400–1800
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5.2–24.4
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National reserves
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φ12.8m
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4–18
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500–2715
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5.2–24.4
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Large strategic reserves
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Flat Bottom Silo Specifications
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Parameter
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Value
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Capacity Range
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800–10,000吨 / 800–10,000t
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Diameter Range
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φ10–φ22m/ φ10–φ22m (customizable)
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Discharge
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Sweep auger + screw cleanout
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Discharge Rate
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≥ 95%
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Suitable Materials
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Grain, cement, fly ash and other bulk materials
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Typical Clients
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National reserves, ports, large processors
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Silo Type Comparison
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Comparison
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Hopper Bottom
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Flat Bottom
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Discharge
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Gravity flow, no power needed
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Sweep auger + screw assist
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Discharge Rate
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99%
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≥ 95%
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Capacity
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20–2,715吨 / 20–2,715t
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800–10,000吨 / 800–10,000t
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Cleaning
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Near-zero cleaning
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Periodic manual cleaning
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Foundation
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Higher (concentrated hopper load)
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Standard (uniform load)
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Cost
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Mid-range (hopper fabrication)
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Better value at large capacity
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Recommended
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Frequent turnover, multi-crop rotation
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Long-term bulk storage
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Key Features & Advantages
1,Hot-dip galvanized corrugated steel with zinc coating ≥350g/m², 25+ year design life — far exceeds carbon steel silos' 3–5 year lifespan
2,Dual aviation-grade rubber seals at wall joints and roof overlaps; no water seepage in rain, no gas leak in fumigation, no mold, no insects
3,Hopper design; grain flows out by gravity; 99% discharge rate; no manual cleaning needed; saves time and labor cost
4,Digital temp cables through grain mass; real-time monitoring; audio-visual alarm on threshold; prevents grain burning
5,Optional ventilation cooling and PH₃ fumigation systems based on stored material and climate; prevents mold and insects
Quality Assurance & Certifications
· ISO 9001 Quality Management System certified
· National High-Tech Enterprise certified
· Hot-dip galvanized corrugated steel complies with GB/T 2518
· 12-month warranty, lifetime technical support and spare parts supply
Product Tags:
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Galvanized Sealed Grain Silo Rust-proof Moisture proof Images
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