FIBC bags are generally made from woven or laminated polypropylene (PP) or polyethylene (PE), offering high strength and corrosion resistance.
These bulk bags are commonly used for packaging powdered or granular materials such as fertilizers, cement, and animal feed. After use, they typically retain large amounts of dust, sand, and adhered chemical residues or oil stains.
FIBC bags are made of multi-layer woven PP (polypropylene) fabric with excellent tear resistance. This structure makes the bags difficult to cut or shred using standard blades, requiring the use of large, heavy-duty shredding and crushing equipment.
Residues such as soil, sand, fertilizers, or chemical particles often adhere tightly to the fiber surfaces inside the bags. Thorough soaking and intensive friction washing are necessary to effectively remove these contaminants.
Due to varying usage environments and loading materials, FIBC bags often contain metal clips, stones, wood chips, and other hard impurities. These foreign objects not only increase the workload of pre-sorting but also accelerate equipment wear and can cause blade jamming. This imposes higher wear-resistance requirements for shredders, crushers, and spiral washing tanks.
PP fibers tend to generate static electricity, causing dust to cling tightly during washing. Additionally, long filament fibers are prone to wrapping around mechanical components. The washing line must incorporate anti-wrapping designs such as protective screens or multi-stage cutting systems to ensure continuous and stable operation.
Complete Process Flow of Bulk Bag Recycling Washing Line
Bag Unloading and Sorting:The process begins by using a forklift or an automatic bag opener to unpack the bulk bags and remove any remaining materials. A rough manual or mechanical sorting is then carried out to separate recyclable plastics from heavily contaminated items, such as large clumps of clay and foreign debris. This step helps to reduce the processing load for subsequent stages.
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1. Feeding & Crushing System
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2. Friction Washing Unit
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3: Sink-Float Separation Tank
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4: Dewatering & Drying Machine
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5:Finished product display |
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Straight Answers to the Questions You Might Be Hesitant to Ask
At Boxin, we understand that every client’s raw material conditions and production goals are unique. There’s no need to worry if the above process modules seem complex or not entirely applicable to your situation.
we specialize in customizing process flows and equipment combinations based on your specific input material—whether your Recycled raw materials vary by origin, contamination level.Simply provide us with a sample of your raw material or the basic technical parameters, and our engineering team will design the most suitable Platic recycling solution for your needs.
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| Customize more suitable configuration according to your actual situation | Design the machine layout according to your workshop drawings | Optimal design of drainage ditch and sewage treatment |
The cleaned and dried recycled flakes and re-pelletized granules can be used in a variety of applications:
After pelletizing or hot-cut filament drawing, the recycled PP can be used to produce fiber-grade PP material for new woven bags or non-woven fabrics.
Purity requirement: Relatively lower, but all colored contaminants, paper scraps, and visible impurities must be removed.Moisture content: Must be controlled below 1% to ensure stable processing.
The recycled pellets can be used for injection molding applications such as furniture parts, containers, and automotive components.
Material requirement: Stable material strength and melt flow index (MFI).Quality control: Stricter moisture and impurity standards are required. Residual contaminants or moisture can cause bubbles and performance degradation during melting.Recommended: Final product moisture content should be less than 0.5%, and melt filtration should be applied to ensure product quality.
The recycled PP pellets can also be used for blow molding containers or film extrusion.
Product grade: Typically classified as blow molding grade.Requirements: High tolerance for color, but the pellets must be odorless and low in contamination. Both injection and blow molding grades require extremely low moisture to avoid defective products.
Recycled materials can also be used for pipe production, household appliance shells, and daily-use items. Proper formulation adjustments can be made according to melt flow index (MFI) and impact strength requirements for each specific application.
Recycled flakes must not contain visible organic contamination (such as oil stains or clay clumps) or harmful foreign substances.
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Model |
Capacity (kg/h) |
Water consumption (T/h) |
Power (KW) |
Labor demand |
Floor space (L×W×H) m |
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BXC-500 |
500 |
3-4 |
80-100 |
2-3 |
32×6×5 |
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BXC-1000 |
1000 |
3-4 |
120-180 |
2-3 |
38×6×5 |
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BXC-2000 |
2000 |
4-5 |
180-260 |
3-5 |
42×6×5 |
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BXC-3000 |
3000 |
6-8 |
260-330 |
4-6 |
45×7×5 |
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BXC-4000 |
4000 |
8-10 |
350-450 |
5-8 |
50×7×5 |
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