Feeding the world requires more than production; it demands reliable infrastructure and engineered solutions. At Winfra, we play a critical role in enabling the safe storage, handling, and movement of agricultural commodities. From grain storage silos to advanced conveying and processing systems, our solutions support every stage.
Our engineering, manufacturing, and execution capabilities ensure that crops are efficiently stored, protected, and managed, ultimately supporting the seamless flow of food from farms to markets, and from raw produce to nourishment for people and livestock.
Flat Bottom Silo
High-Capacity Storage for Long-Term Bulk Grain Preservation
Winfra Flat Bottom Silos are engineered for large-scale grain storage, offering a reliable and cost-effective solution for long-term bulk storage. Designed with strong steel structures and advanced aeration systems, these silos help maintain grain quality by controlling temperature and moisture levels.
Ideal for storing wheat, rice, maize, and other bulk commodities, flat bottom silos are widely used in FCI warehouses, grain terminals, and large industrial storage facilities. Their design supports very high capacities (up to 100,000 MT+), making them perfect for government and commercial projects.
These silos are equipped with aeration, temperature monitoring, and efficient unloading systems, ensuring safe storage with minimal spoilage and losses. Built as per IS and international standards, they offer long life, durability, and optimized space utilization.
Perfect solution for large-capacity, long-term grain storage with maximum safety and efficiency.
Hopper Bottom Silo
Efficient Storage with Fast & Controlled Grain Discharge
Winfra Hopper Bottom Silos are specially designed for quick, efficient, and residue-free grain discharge, making them ideal for industries that require frequent loading and unloading operations. These silos are built using high-quality galvanized or zincalume steel, ensuring excellent corrosion resistance and long service life.
With a conical hopper base, materials can be discharged easily using gravity, reducing manual effort and operational time. Our hopper silos are perfect for grain storage, animal feed storage, seeds, and agro-processing units, where hygiene and speed are critical.
Available in capacities from small-scale to medium storage, these silos are widely used in feed mills, poultry farms, and food processing industries. Their modular design allows quick installation, low maintenance, and high operational efficiency. Best choice for fast-moving storage operations with minimal grain loss and maximum efficiency.
Application
Features
Specification
Manufacturing Process
Model Chart
Gallery
Material Handling
Applications of Grain Storage Silos
Winfra grain storage silos are widely used across agriculture and industry for safe, efficient bulk storage. Suitable for wheat, rice, maize, pulses, seeds, and feed, they protect against moisture, pests, and contamination. With advanced aeration and temperature control, they ensure quality preservation and minimize post-harvest losses.
Wheat Silo
Rice Silo
Paddy Silo
Maize Silo
Corn Silo
Coffee Silo
Soya Silo
Barley Silo
Smart monitoring and automation support.
Seeds Silo
Key Features of Grain Storage Silos
Winfra offers advanced grain storage solutions designed to meet the needs of both agricultural and industrial sectors. Our portfolio includes Flat Bottom Silos for large-capacity storage and Hopper Bottom Silos for efficient handling and quick discharge applications.
Category
Flat Bottom Silos
Hopper Bottom Silos
Application
Large-scale, long-term storage
Short-term storage & frequent discharge
Capacity
Up to 12,500+ m³
Up to 5,342 m³ (45°), 1,218 m³ (60°)
Diameter Range
3.64 m – 32.74 m
3.6 m – 14.55 m
Design Feature
30° roof pitch for max capacity
45° & 60° hopper angles
Material Handling
Free-flowing grains
Free & non-free flowing, including wet grains
Discharge System
Mechanical/manual
Gravity discharge (minimal residue)
Key Systems
Aeration, temperature monitoring
Quick discharge, low handling cost
Construction
Galvanized steel structure
Galvanized sheets with stiffeners
Special Features
High storage efficiency
Fast installation, smooth discharge
Applications
Wheat, rice, maize, cereals
Feed, grains, industrial materials
Application
Flat Bottom Silos
Large-scale, long-term storage
Hopper Bottom Silos
Short-term storage & frequent discharge
Capacity
Flat Bottom Silos
Up to 12,500+ m³
Hopper Bottom Silos
Up to 5,342 m³ (45°), 1,218 m³ (60°)
Diameter Range
Flat Bottom Silos
3.64 m – 32.74 m
Hopper Bottom Silos
3.6 m – 14.55 m
Design Feature
Flat Bottom Silos
30° roof pitch for max capacity
Hopper Bottom Silos
45° & 60° hopper angles
Material Handling
Flat Bottom Silos
Free-flowing grains
Hopper Bottom Silos
Free & non-free flowing, including wet grains
Discharge System
Flat Bottom Silos
Mechanical/manual
Hopper Bottom Silos
Gravity discharge (minimal residue)
Key Systems
Flat Bottom Silos
Aeration, temperature monitoring
Hopper Bottom Silos
Quick discharge, low handling cost
Construction
Flat Bottom Silos
Galvanized steel structure
Hopper Bottom Silos
Galvanized sheets with stiffeners
Special Features
Flat Bottom Silos
High storage efficiency
Hopper Bottom Silos
Fast installation, smooth discharge
Applications
Flat Bottom Silos
Wheat, rice, maize, cereals
Hopper Bottom Silos
Feed, grains, industrial materials
High-Capacity Bulk Storage
Modular Bolted Design
Minimal Grain Loss & Contamination
Space Optimization
Advanced Aeration System
Efficient Loading & Unloading Systems
Low Maintenance & Long Lifespan
Automation & Smart Control Integration
Corrosion-Resistant Steel Construction
Temperature Monitoring System
Customizable Design Options
Compliance with Industry Standards
Specifications of Grain Storage Silos
Winfra Grain Storage Silos are engineered to provide durable, high-capacity bulk storage solutions for agricultural and industrial applications. Manufactured from high-grade galvanized or Zincalume steel, they offer excellent corrosion resistance and long service life in demanding environments.
Available in capacities ranging from 1,000 MT to 15,000 MT+, our silos feature modular bolted construction for fast installation, easy transport, and future expansion. Integrated aeration, temperature monitoring, and efficient loading/unloading systems help preserve grain quality and minimize losses.
Designed to meet IS 805, AS 3774, and international standards, Winfra silos are built to withstand seismic activity, wind loads, and heavy operational stress, delivering a reliable and future-ready grain storage solution.
Hopper Bottom Silo vs Flat Bottom Silo
Compare features, capacity, applications, and design characteristics.
Parameter
Hopper Bottom Silo
Flat Bottom Silo
Capacity Range
5 MT – 1,500 MT
1,000 MT – 100,000 MT+
Material
Galvanized / Zincalume Steel
Galvanized / Zincalume Steel
Design Type
Conical Hopper Bottom
Flat Bottom with RCC Foundation
Discharge System
Gravity Discharge (No Residue)
Sweep Auger / Mechanical Discharge
Installation Time
Fast (Modular Bolted Design)
Moderate (Large Structure)
Application Type
Short-term / Frequent Use
Long-term / Bulk Storage
Structure Height
Medium Height
High-Capacity Tall Structures
Diameter Range
Small to Medium
Large Diameter (Up to 30+ m)
Aeration System
Optional / Basic
Advanced Aeration System
Maintenance
Low
Moderate
Foundation Requirement
Steel Structure Support
RCC Civil Foundation Required
Best Use
Feed Mills, Poultry, Small Storage
FCI, Warehouses, Ports, Industries
Mobility
Relocatable
Fixed Installation
Standards
IS / International Standards
IS 805, AS 3374, International Standards
Capacity Range
Hopper: 5 MT – 1,500 MT
Flat: 1,000 MT – 100,000 MT+
Material
Hopper: Galvanized / Zincalume Steel
Flat: Galvanized / Zincalume Steel
Design Type
Hopper: Conical Hopper Bottom
Flat: Flat Bottom with RCC Foundation
Discharge System
Hopper: Gravity Discharge (No Residue)
Flat: Sweep Auger / Mechanical Discharge
Installation Time
Hopper: Fast (Modular Bolted Design)
Flat: Moderate (Large Structure)
Application Type
Hopper: Short-term / Frequent Use
Flat: Long-term / Bulk Storage
Structure Height
Hopper: Medium Height
Flat: High-Capacity Tall Structures
Diameter Range
Hopper: Small to Medium
Flat: Large Diameter (Up to 30+ m)
Aeration System
Hopper: Optional / Basic
Flat: Advanced Aeration System
Maintenance
Hopper: Low
Flat: Moderate
Foundation Requirement
Hopper: Steel Structure Support
Flat: RCC Civil Foundation Required
Best Use
Hopper: Feed Mills, Poultry, Small Storage
Flat: FCI, Warehouses, Ports, Industries
Mobility
Hopper: Relocatable
Flat: Fixed Installation
Standards
Hopper: IS / International Standards
Flat: IS 805, AS 3374, International Standards
Manufacturing Process
Winfra Buildtech follows a precision-engineered manufacturing process to deliver high-performance grain storage silos in India, ensuring durability, structural strength, and long-term reliability for both hopper bottom and flat bottom silos
Project Execution Workflow
1. Requirement Analysis & Concept Design
Understanding client requirements, capacity, grain type, site conditions
Selection of silo type: Flat Bottom / Hopper Bottom
Preliminary layout and feasibility study
2. 3D Engineering & Detailed Design
Advanced 3D modeling and visualization for accurate planning
Structural design as per standards (wind, seismic loads)
Detailed fabrication drawings and GA drawings
Clash detection and layout optimization
3. Material Procurement
Procurement of high-quality galvanized/Zincalume steel
Inspection of raw materials (thickness, coating, grade)
4. Manufacturing & Fabrication
Sheet cutting, roll forming, and corrugation
CNC punching for bolt holes
Fabrication of stiffeners, roof structures, and accessories
Surface protection and finishing
5. Quality Control & Inspection
Dimensional checks and tolerance verification
Coating thickness and material testing
Trial fit-up and inspection of components
6. Packing & Logistics
Proper packing and labeling of panels and accessories
Safe transportation to project site
7. Civil Foundation Work
RCC raft / ring beam construction
Leveling, alignment, and anchor bolt placement
8. Silo Erection (Installation)
Bottom ring → shell erection → stiffeners → roof installation
Installation of ladders, platforms, and accessories
Bolted construction for faster assembly
9. Mechanical & Electrical Integration
Installation of aeration systems, fans, temperature sensors
Conveying systems (if part of scope)
Electrical connections and control panels
10. Testing & Commissioning
Inspection of structure and systems
Functional testing of aeration and monitoring systems
Trial operation and performance validation
11. Handover & Training
Final documentation and quality reports
Training for operation and maintenance team
Smooth project handover
Model Chart (Capacity Range)
Winfra offers a wide range of modular grain storage silo models designed to meet diverse storage requirements:
Our silos are available in hopper bottom and flat bottom designs, with customizable height, diameter, and discharge systems based on project requirements.
Silo Capacity Range & Type
Capacity Range
Silo Type
5 MT – 100 MT
Hopper Bottom
100 MT – 1,000 MT
Hopper Bottom
1,000 MT – 5,000 MT
Both Types
5,000 MT – 20,000 MT
Flat Bottom
20,000 MT – 100,000 MT+
Flat Bottom
Gallery
Explore our successfully executed grain silo projects across India, showcasing high-quality installations, structural precision, and performance. Our gallery highlights real project images of hopper and flat bottom silos, installation process, and large-scale storage facilities, demonstrating Winfra’s expertise in delivering reliable and efficient storage solutions.
Material Handling
Winfra Buildtech provides complete material handling solutions for grain storage silos, ensuring smooth and efficient operations. Our systems include bucket elevators, belt conveyors, screw conveyors, chain conveyors, and unloading systems, designed for safe and controlled grain movement. Integrated with automation and control systems, these solutions improve operational efficiency, reduce grain damage, and optimize overall storage performance.
Winfra offers a complete Material Handling System for Grain Storage Silos, designed to ensure smooth, efficient, and damage-free movement of grains throughout the storage cycle. Our integrated systems are engineered to handle loading, unloading, conveying, and distribution of bulk materials, making silo operations faster, safer, and highly efficient.
We don’t just supply silos. we deliver a fully integrated material handling ecosystem, including:
Receiving Systems (Truck/Tipper unloading pits)
Cleaning Systems (Pre-cleaners, scalpers)
Conveying Systems (Horizontal & vertical movement)
Storage Distribution Systems (Multiple silo filling)
