U-Panel, Square & Circular FIBC: Three Classic Structures
Economical U-panel, Precision 4-panel square, Seamless circular for powders. The most versatile FIBC styles.
U-Panel Design4-Panel SquareCircular TubularCustom Configurations
Three Structure Comparison
U-Panel: Composed of one main body tube and two side panels. Forms a square shape when filled, providing excellent stacking stability. The most common economical structure.
4-Panel Square: Made from four independent side panels and a bottom seam. Forms a precise square, ideal for applications requiring accurate stacking such as cement and building materials.
Circular / Tubular: Woven directly on circular looms with no vertical seams. Ideal for fine powders (TiO₂, flour), reducing residue and leakage risks at seams.
Common Features
- Simple structure, light self-weight, foldable, minimal return space, low price
- Convenient loading/unloading, significantly improved handling efficiency
- Multiple top and bottom designs: fill spout, open top, duffle top, discharge spout, flat bottom, conical bottom
- Optional functional layers: PE liner, aluminum foil liner, conductive grid, UV coating
Technical Parameters
| Parameter | Specification |
|---|---|
| Dimensions | L×W×H 50–120 cm per dimension, tolerance ±1 cm |
| Safe Working Load | SWL 0.5–3 tons |
| Safety Factor | 5:1 (single-use) / 6:1 (standard) / 8:1 (heavy-duty) |
| Body Structure | U-Panel / 4-Panel / Circular / Baffled |
| Top Design | Fill spout / Open top / Duffle top / Flat with tie strings |
| Bottom Design | Discharge spout / Flat bottom / Conical bottom with tie strings |
| Lifting | Cross-corner loops / Side-sewn loops / Single loop / Top/bottom combination |
| Printing | Up to 8-color flexo, Logo, barcode, QR code, batch traceability |
| Functional Enhancement | UV stabilization, anti-static, conductive, breathable panels, aluminum foil barrier, PE liner, RFID tags |
Typical Applications
- Bulk cement, grain, chemical raw materials, feed
- Starch, minerals, pharmaceutical raw materials
- Plastic raw materials, food additives, metallurgical powder
- Ore powder, refractory materials, hazardous materials (calcium carbide)
Get Your Custom FIBC Solution
Choose your body structure, top/bottom design, and functional enhancements.