Post-Harvest & Processing

winnowers

riya / October 27, 2025

Winnowers What is a Winnower? A winnower is a machine that works on the principle of air flow to separate lighter impurities from heavier grains. When grains are poured into the machine, a controlled stream of air blows away lighter materials while the heavier grains fall separately. This process helps in cleaning grains like wheat, paddy, maize, and pulses efficiently. ⚙️ Types of Winnowers 1. Manual Winnower:Operated by hand, suitable for small-scale farms and traditional farming areas. 2. Pedal Operated Winnower:Works with foot operation and is more efficient than manual winnowing. 3. Power Operated Winnower:Runs on an engine or motor and can clean large quantities of grain quickly. 4. Combined Winnower and Cleaner:A modern type that performs both cleaning and winnowing in one process for better efficiency. 🌾 Benefits of Winnowers Separate grains from husk and dust effectively. Improve the purity and quality of grains. Save time and labor compared to traditional winnowing methods. Reduce post-harvest losses and increase productivity. Prepare grains for safe storage or further processing.

Grain Cleaners

riya / October 27, 2025

Grain Cleaners What is a Grain Cleaner? A grain cleaner is a machine designed to separate unwanted materials from harvested grains such as stones, husks, straw, and dirt. It uses air flow, sieves, and vibration to clean the grains effectively. This process ensures that only pure and uniform grains are collected for packaging, processing, or storage. Grain cleaners are commonly used for crops like wheat, rice, maize, pulses, and oilseeds. ⚙️ Types of Grain Cleaners 1. Manual Grain Cleaner:Operated by hand and suitable for small-scale farmers. It is simple to use and requires minimal maintenance. 2. Mechanical Grain Cleaner:Runs with the help of a motor or tractor power. It uses sieves and air blowers to separate impurities efficiently. 3. Air Screen Cleaner:A modern type that combines air suction and screen separation for more accurate cleaning of grains. 4. Vibratory Cleaner:Uses vibration and airflow to remove light and heavy impurities from grains with high precision. 🌾 Benefits of Grain Cleaners Improve grain quality by removing impurities and damaged grains. Reduce post-harvest losses and maintain cleanliness. Increase market value and storage life of grains. Save time and labor compared to manual cleaning. Ensure better efficiency in further processing or packaging.

Dryers, Post-Harvest & Processing

Dryers

riya / October 27, 2025

Dryers What is a Dryer? A dryer is a machine used to reduce the moisture content of harvested crops to a safe level for storage. It works by passing heated air through the grains, which removes the excess water content. Dryers are commonly used for crops like rice, wheat, maize, pulses, and oilseeds. By using dryers, farmers can store their produce safely for longer periods without the risk of damage. ⚙️ Types of Dryers 1. Sun Dryers:Traditional method where crops are spread under the sun for natural drying. It is cost-effective but depends on weather conditions. 2. Batch Type Mechanical Dryers:Used for small and medium-scale drying. Crops are loaded, dried with hot air, and then unloaded after drying. 3. Continuous Flow Dryers:Used for large-scale drying. Grains move continuously through the drying chamber while hot air passes through them. 4. Fluidized Bed Dryers:Modern dryers that use air pressure to keep grains in motion during drying, ensuring uniform moisture removal. 🌾 Benefits of Dryers Remove excess moisture and prevent fungal or bacterial attack. Increase storage life and maintain grain quality. Reduce post-harvest losses caused by improper drying. Save time compared to traditional sun drying. Improve overall efficiency in grain handling and storage.

Post-Harvest & Processing

winnowers

Grain Cleaners

Dryers

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