In large-scale agricultural and feed manufacturing production, packaging bulk granular materials ranging from 20kg to 50kg has long been a labor-intensive and inefficient process. Traditional manual bagging relies heavily on workers for material feeding, weighing, filling, and bag sealing, which inevitably causes unstable weighing accuracy, low production efficiency, high labor costs, and messy packaging standards. For grain processors, feed factories, and seed planting enterprises with mass production demands, upgrading to professional large-bag automatic packaging equipment has become the key to improving overall production competitiveness.
Fully automatic granular packaging systems integrate feeding, precision weighing, filling, sealing, coding and conveying into one continuous workflow. These machines are purpose-built for bulk granular materials including rice, wheat, corn, beans, animal feed pellets, grass seeds, vegetable seeds and flower seeds, specially optimized for standard 20kg, 25kg, 40kg and 50kg large-specification packaging scenarios.
Core Working Principle of 20–50kg Automatic Granular Packaging Line
Different from small and medium-sized packaging equipment, the 20–50kg granular packaging system is professionally designed for heavy-duty bulk packaging. The entire production process is fully automated and unmanned, effectively solving the pain points of heavy manual labor in large-bag packaging.
The equipment adopts a high-precision quantitative weighing module, which realizes automatic quantitative feeding through dual-stage fast and slow feeding control. After the material reaches the set weight, the system automatically stops feeding, completes accurate filling, and cooperates with automatic bag clamping, bag releasing, sewing or heat sealing, date coding, and finished product conveying. The whole process runs continuously and cyclically, with no need for manual intervention in the middle link, greatly simplifying the large-bag packaging process of granular materials.
Applicable Materials & Packaging Specifications
This fully automatic packaging system is highly adaptable and covers almost all common bulk granular agricultural and feed materials, with fixed and mature support for 20–50kg mainstream packaging specifications:
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Grain materials: Rice, wheat, corn, soybeans, mung beans, millet and other food grains, suitable for 25kg, 40kg, 50kg bulk wholesale packaging
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Feed materials: Animal feed pellets, poultry feed, aquatic feed, livestock compound feed, meeting the large-bag packaging needs of feed factory bulk delivery
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Seed materials: Grass seeds, vegetable seeds, flower seeds and various crop seeds, realizing standardized large-bag quantitative packaging for seed batch sales and storage
It supports multiple common large-bag types on the market, including woven bags, PE composite bags, and plastic bulk sacks, with strong compatibility and no need to replace equipment for different bag types of the same specification.
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