




The inner baffle bulk bag is a square-shaped FIBC bag designed for packaging, storage, and transportation of powders, granules, flakes, and other dry bulk materials. It is also commonly known as a baffle bulk bag, Q Bag, or square FIBC bag.
Compared with standard round-shaped bulk bags, the inner baffle structure helps the bag maintain a more regular square shape after filling. This reduces side bulging, improves stacking stability, and increases space utilization during warehouse storage and container loading. It is especially suitable for bulk purchasing scenarios where stable stacking, efficient logistics, and neat appearance are important.


| Item | Available Options |
|---|---|
| Product Name | Inner Baffle Bulk Bag / Square FIBC Bag / Q Bag / Baffle Bulk Bag |
| Main Material | PP woven fabric |
| Loading Capacity | 500 kg-2000 kg, customizable |
| Bag Structure | Four-side inner baffle / internal panel structure |
| Top Style | Open top, filling spout, skirt top, flap top, etc. |
| Bottom Style | Flat bottom, discharge spout, star bottom, etc. |
| Lifting Style | Four-loop lifting, side-seam lifting, etc. |
| Surface Treatment | Standard woven fabric, laminated fabric, moisture-resistant option |
| Inner Liner | PE liner, aluminum liner, and other liner options |
| Color and Printing | White is commonly used; custom printing available |
| Suitable Materials | Powders, granules, flakes, and dry bulk materials |
| Custom Options | Size, fabric weight, loading capacity, opening style, liner, and packing method |
The key advantage of an inner baffle bulk bag lies in its internal baffle panels. During filling, the baffles help pull and support the bag sides, reducing the common middle bulging problem found in standard bulk bags. As a result, the filled bag can maintain a more regular shape on pallets, in warehouses, and inside shipping containers.
For materials with higher density or products that easily cause bag deformation after filling, the inner baffle design helps improve bag stability and reduce wasted space during transportation.
The bag body is made of PP woven fabric. Fabric weight, weaving density, and sewing method can be adjusted according to different loading requirements. For applications requiring moisture protection, powder leakage control, or improved cleanliness, PE liners, laminated fabric, or special sewing methods can be added.


Inner baffle bulk bags are widely used in chemical, plastic, mineral, construction material, agriculture, and food ingredient industries. They are especially suitable for products that require long-distance transportation, container loading, warehouse stacking, or a neat square bag shape.
Typical applications include plastic resin granules, PVC powder, titanium dioxide, mineral powder, quartz sand, fertilizer, feed additives, starch, sugar powder, grain ingredients, and other dry bulk products.
For buyers, choosing an inner baffle bulk bag is not only about packaging materials, but also about improving container loading efficiency, warehouse management, and transportation stability.


We can provide different inner baffle bulk bag solutions according to material weight, flowability, stacking method, transportation distance, and destination market requirements.
When requesting a quotation, buyers can provide the target loading weight, bag size, top and bottom opening style, liner requirement, coating requirement, printing content, and order quantity. This helps us recommend a more suitable bag structure and production specification.
For export packaging, container loading method, pallet size, and loading quantity per container can also be discussed to make the bag size better match the logistics plan.
What is the difference between an inner baffle bulk bag and a standard bulk bag?
An inner baffle bulk bag has internal baffle panels that help the bag keep a more square shape after filling. It reduces side bulging and is more suitable for stacking and container transportation.
Can the size and loading capacity be customized?
Yes. The common loading capacity range is 500 kg-2000 kg. Bag size, fabric weight, lifting loops, filling and discharge openings, and liners can all be customized according to order requirements.
What materials are suitable for inner baffle bulk bags?
They are suitable for powders, granules, flakes, and other dry bulk materials, especially products that require stable bag shape, efficient storage, and better container loading performance.
Can a PE liner be added?
Yes. For materials that require moisture resistance, powder leakage protection, or improved packaging cleanliness, PE liners or other liner options can be added.
To get a quotation for inner baffle bulk bags, please provide the material name, single-bag loading weight, bag size, filling and discharge style, liner requirement, order quantity, and destination port information.
We will recommend a suitable bulk bag structure and purchasing solution based on your actual packaging and transportation needs.


Get in touch for more information, pricing, or custom requirements.