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China FIBC Bags Suppliers - Large Open-Top Flat Bottom Bags Factory for Bulk Transport and Storage
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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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.
๐ฆ Load: 0.5 โ 1 Ton
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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. Suitable for plastic particles and chemical fertilizer raw materials.
๐ฆ Load: 1 โ 2 Tons
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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 ore powder and metal particles.
๐ฆ Load: 2 โ 3 Tons
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 body dimensions and lifting sling specifications. Brand logos, material info, and warning signs can be printed. Can be upgraded to antistatic or acid-alkali resistant materials for special scenarios.
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 Sector
Used for loading granular grains such as wheat, corn and soybeans, as well as root and tuber crops like potatoes, sweet potatoes and onions, meeting the needs of large-scale storage and long-distance transportation.
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Building Materials Sector
Suitable for packaging blocky materials such as sand, gravel, cement clinker and lightweight aggregates, adapting to lifting operations at construction sites and reducing material scattering loss.
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Chemical Industry Sector
Applied to transport dry powdery or granular materials such as plastic particles, resin pellets and chemical fertilizer raw materials. The corresponding bottom reinforcement structure can be selected based on material weight.
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Other Sectors
Also used for waste recycling and industrial parts storage, serving as a cost-effective and versatile packaging solution across multiple industries.
Detail Pictures
Frequently Asked Questions (FAQ)
โ What are the three types of open-top flat bottom FIBCs based on bottom reinforcement structure?
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The three types are Cross-bottom Reinforced (0.5โ1 ton), Grid-bottom Reinforced (1โ2 tons), and X-bottom Reinforced (2โ3 tons). Each differs in stitching pattern, load-bearing capacity, and suitable material types.
โ What is the maximum load capacity of an open-top flat bottom FIBC?
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The maximum load capacity depends on the bottom reinforcement type. X-bottom reinforced FIBCs can handle up to 2โ3 tons, making them suitable for heavy materials such as ore powder and metal particles.
โ Can open-top flat bottom FIBCs be customized with brand logos or special materials?
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Yes. These bags support full customization including bag dimensions, lifting sling specifications, and printing of brand logos, material information, and warning signs. They can also be upgraded to antistatic or acid-alkali resistant materials for special use cases.
โ Are open-top flat bottom FIBCs suitable for agricultural products?
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Absolutely. They are widely used in the agricultural sector for storing and transporting granular grains such as wheat, corn, and soybeans, as well as root crops like potatoes, sweet potatoes, and onions, supporting large-scale and long-distance logistics.
โ What makes the flat bottom design advantageous for stacking and storage?
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The flat bottom structure distributes weight evenly across the base, allowing filled bags to be stacked in multiple layers without tipping. This maximizes the use of warehouse space and transport vehicle capacity, improving overall logistics efficiency.
โ Which industries commonly use open-top flat bottom FIBCs?
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These bags are commonly used in agriculture (grains, root crops), building materials (sand, gravel, cement), chemical industry (plastic particles, resin pellets, fertilizers), and other sectors including waste recycling and industrial parts storage.