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Also known as a flexible intermediate bulk container (FIBC) or space bag, it is a medium-sized bulk container that can achieve unitized transportation mainly by cranes or forklifts. It is convenient for transporting large quantities of bulk powdery materials, featuring large capacity, lightweight, and easy handling, making it one of the common packaging materials.
Container bags mainly include square, circular, and irregular types. Square bags consist of four independent side panels, maintaining their original shape better when filled. Circular bags are made from a single piece of tubular fabric, formed as a whole. Irregular bags consist of a large U-shaped panel and two side panels, offering more flexible sizing. Pricing primarily depends on material usage. For the same size, square bags use more material area than circular or irregular ones, providing better load-bearing capacity and thus higher pricing.
Container bags are typically made from polypropylene or polyethylene as the main raw material for woven ton bags, with three to four layers of material for foil ton bags. Fully foil inner bags paired with woven outer bags form functional composite packaging, widely used in industries such as chemicals. However, some manufacturers use substandard or recycled bags as raw materials. In such cases, in addition to price, the properties of the contents must be considered. For example, bags for high-end chemical products require extremely high quality to prevent leakage; bags for mineral powders have lower dust-proof requirements but must remain clean; while bags for waste only need to hold materials without strict load-bearing requirements.
Modern designs include filling and discharge ports for easier loading and unloading, making handling more convenient and thus relatively more expensive.
Container bags typically have two, three, or four lifting straps, with various lengths such as edge lift, half lift, down-to-bottom, and pocket-bottom.
Container bags have one, two, or three baffles, with high-quality bags also featuring reinforced baffles at the sealing edges to enhance edge tension and overall load-bearing capacity.
| Square Container Bag Specifications | |
|---|---|
| Product Name | Ton Bag/Bulk Bag/FIBC |
| Keywords | Square Container Bag |
| Shape | Circular, Square And U-Shaped |
| Bottom | With Bottom (Grid And Cross Lifting Straps)/Without Bottom |
| Material | High-Quality Polypropylene (PP) |
| Filling Port | With Inlet Port/Large Opening/Waterproof Cover |
| Discharge Port | With Discharge Port/Without Discharge Port |
| Color | White, Yellow, Black |
| Lifting Method | Top Lift, Side Lift, Bottom Lift |
| Lifting Straps Qty | Two Straps, Four Straps |
| Lifting Straps Style | Corner Lift Strap (Flip/Non-Flip), Edge-Attached Strap, Pocket-Bottom Strap |
| Baffles Quantity | One Baffle, Two Baffles, Three Baffles, Etc. |
| Load Capacity | 0.3 Ton - 2 Tons |
| Type Of Use | Reusable, Single-Use |
| Fabric Thickness | 145-150 G/M2 |
| OEM & ODM Custom | Accept |
FIBCs are made of high-strength plastic materials, capable of holding large-capacity materials, and have excellent tensile strength, anti-rupture, and puncture resistance.
FIBCs are designed to be compatible with loading and unloading equipment, such as forklifts and hoisting machinery, enabling convenient and fast handling and stacking.
Compared with traditional wooden boxes or metal containers, FIBCs themselves are lightweight and can be nested together when stacked, saving storage space.
As FIBCs can be reused, they reduce the generation of packaging waste, lower energy consumption, and minimize environmental pollution.
