4-Loop Big Bags
A durable and cost-effective big bag solution for packaging, handling, and storing dry, bulk, and heavy materials across multiple industries.
— 4-Loop Big Bags
A U-Panel Big Bag is a 4-loop FIBC made from three main panels: one U-shaped panel forms the body and bottom of the bag, while two side panels are stitched to complete the structure. This product, known internationally as a (U Panel Big Bag), is designed for the safe handling and storage of dry bulk materials.
At Sayman Polymer, U-Panel Big Bags are engineered according to product type, load weight, safe working load, lamination requirements, color, printing, filling method, and discharge system.
— Features
A strong, economical, and customizable solution for dry bulk packaging within industrial supply chains.
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An economical choice for industrial bulk handling
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Suitable for bulk, powdered, and granular products
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Selected according to product sensitivity
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Engineered around load weight and handling conditions
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Improved confidence during lifting and transport
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Can be produced in up to 7 color options
U-Panel Big Bags are used for packaging and transporting dry bulk materials such as grains, seeds, fertilizers, animal feed, cement, sand, gravel, powdered chemicals, granules, flour, sugar, and salt.
The panel-based structure helps the body and bottom of the bag perform reliably under load pressure, handling movement, and warehouse conditions.
In U-Panel Big Bag production, Safe Working Load (SWL) is one of the key design criteria. It defines how much weight the bag can safely carry under intended handling conditions.
In addition to SWL, the safety factor is also critical. Big bags are commonly designed with a 5:1 or 6:1 safety factor to help maintain packaging safety during lifting, transport, and operational stress.
U-Panel Big Bags can be produced in laminated or unlaminated structures.
Laminated models are suitable for products that require additional protection against moisture, dust, and environmental exposure.
Unlaminated models offer a more economical option for dry, general-purpose, and less sensitive materials.
— Applications
U-Panel Big Bags are used for packaging and transporting dry, powdered, granular, and bulk materials across different industries.
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Handling and storing grains, seeds, fertilizers, and animal feed
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Packaging chemical powders, granules, and similar materials
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Transporting cement, sand, gravel, and construction materials
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Packaging flour, sugar, salt, and dry food products
