I. Main Types and Characteristics of Powder Feeding Bags
1. **Sanitary-grade Powder Feeding Bags**
These products are made of high-strength materials. The bag body is designed to optimize the powder flow and reduce residue. Some models are equipped with flange joints to ensure no material leakage during the feeding process. Typical specifications include capacities from 5L to 50L, and the feeding port sizes range from 2 inches to 8 inches, which can meet the feeding needs of different scenarios. Some products are sterilized (such as by steam, gamma rays, etc.) and are suitable for aseptic production environments. For example, some sterilization-grade feeding bags are also equipped with HDPE films and sterilization indicators, and the integrity of the packaging is verified through dyeing tests to provide microbial barrier protection.
2. **Disposable Aseptic Feeding Bags**
These are specially designed for aseptic transfer scenarios, such as the transfer of dry pharmaceutical powders, culture media, and other materials. These products often use Tyvek materials and are fitted with three-dimensional clamp joints or sealing plugs for easy and rapid connection to containers. Some models support multiple sterilization methods (such as EO, VHP, etc.) and come with cleanliness reports to ensure compliance with the high standards of the pharmaceutical industry.
3. **Large-capacity Bulk Bag Packaging Systems**
To meet the packaging and feeding needs of large quantities of powdered and granular materials (such as cement, fertilizers, food raw materials, etc.), bulk bag automatic packaging machines provide high-efficiency solutions. Such equipment is usually equipped with dust removal systems, explosion-proof devices, and automatic bagging functions, supporting packaging specifications from 50kg to 1000kg, enabling integrated operations of material weighing, sealing, and conveying, and is widely used in industries such as chemicals, metallurgy, and animal feed.
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