Custom Large Open-Top Flat Bottom FIBC Bags - China Suppliers and Factory for Bulk Material Transportation Manufacturers, Products

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Introducing our open-top flat bottom FIBC, a fundamental choice in the FIBC category, particularly popular among China suppliers and factories. This bag features a fully open top and a flat bottom without a discharge outlet, offering ease of loading and exceptional stacking stability.
Crafted from premium polypropylene (PP) woven fabric, the bag is designed with high-strength lifting slings in either a 2-loop or 4-loop configuration on the sides. The seams of the bag are meticulously reinforced with double-needle stitching to ensure durability. With a standard load capacity ranging from 0.5 to 3 tons and a safety factor of 5:1 to 6:1, this FIBC is ideal for the bulk transportation and storage of various granular, blocky, and powdery materials. Trust our factory for reliable and high-quality FIBC solutions.

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Product Description

Core Classification (By Bottom Reinforcement Structure)
According to different bottom reinforcement processes, open-top flat bottom FIBCs can be divided into three types, and the structure directly affects the load-bearing capacity and lifting stability:
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0.5 โ€“ 1 Ton
Cross-bottom Reinforced

The bottom is reinforced with cross-stitching technology, featuring a simple structure and low production cost. The stress points are concentrated at the cross seams. Suitable for light-weight conventional materials such as sand, gravel and grain particles.

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1 โ€“ 2 Tons
Grid-bottom Reinforced

The bottom is reinforced with multi-layer grid-shaped stitching, adding horizontal and vertical stress support. The bag body bears force evenly during lifting without deformation easily. Suitable for medium-weight materials such as plastic particles and chemical fertilizer raw materials.

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2 โ€“ 3 Tons
X-bottom Reinforced

The bottom is reinforced with diagonal X-shaped stitching, dispersing stress points to the four corners. Combined with reinforced side lifting slings, it achieves a higher safety factor. Suitable for heavy materials such as ore powder and metal particles.

Core Features
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Easy Loading

The fully open top design allows for fast loading with forklifts or conveyor belts, greatly improving loading and unloading efficiency and being suitable for large-batch material turnover.

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Stable Stacking

The flat bottom structure ensures even force distribution, enabling multi-layer stacking after being filled without easy tipping, thus maximizing the utilization of warehouse and transport vehicle space.

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Flexible Customization

Size and style can be customized including bag dimensions and sling specifications. Brand logos, material info and warning signs can be printed.

Main Applications
With the characteristics of simple structure and strong practicality, open-top flat bottom FIBCs are widely used in various industries:
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Agricultural Products

Used for loading granular grains such as wheat, corn and soybeans, as well as root crops like potatoes and onions.

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Building Materials

Suitable for packaging blocky materials such as sand, gravel, cement clinker and lightweight aggregates.

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Chemical Industry

Applied to transport dry powdery or granular materials such as plastic particles and chemical fertilizer raw materials.

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Other Sectors

Also used for waste recycling and industrial parts storage, serving as a cost-effective packaging solution.

Detail Display
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Frequently Asked Questions
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What is an open-top flat bottom FIBC and what makes it different?
An open-top flat bottom FIBC features a fully open top for easy filling and a flat-structured bottom for stable stacking. Unlike bags with discharge spouts, the flat base allows multi-layer stacking, maximizing space utilization while the open top enables fast loading.
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Which bottom reinforcement type should I choose?
The choice depends on weight. For light-weight (0.5โ€“1 ton) like sand, cross-bottom is sufficient. For medium-weight (1โ€“2 tons), grid-bottom offers better stability. For heavy materials (2โ€“3 tons) like ore powder, X-bottom reinforcement is recommended.
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Can these FIBCs be customized for branding?
Yes. You can adjust bag dimensions, sling specifications, and material types. Custom printing is available for brand logos, material information, and warning signs to meet specific industry requirements.
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Are they suitable for food-grade agricultural products?
Yes. They are widely used for grains such as wheat, corn, and soybeans. When required, food-safe PP woven materials can be used to ensure compliance with food handling and storage standards.
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How do I ensure safe lifting and transportation?
Select the correct reinforcement based on load weight and ensure lifting slings are rated for the total weight. Always inspect the bag for damage before use and follow the manufacturer's Safe Working Load (SWL) guidelines.
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What industries commonly use these bags?
Industries include agriculture (grain storage), building materials (sand, gravel), chemical industry (plastic pellets, fertilizers), as well as waste recycling and industrial parts storage.

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