FIBC bulk bags have proven to be effective for storing and transporting a variety of products and materials and have also gained a reputation for being a versatile bulk packaging option. One customizable feature of flexible intermediate bulk containers is the bag's top/filling option. With multiple top/filling options, bags can be customized to fit your specific application and operation.

Let's examine four of the most common types of filling options used and hopefully help you determine which option is right for your unique application. For regular updates, subscribe to our blog by filling out the "Subscribe to our blog updates" form to the right. 

Tie-Down Flap Top Bulk Bags

Tie-Down Flap Top FIBCs are ideal for quick filling applications. The flap top on this type of bag allows for rapid fill making filling each bag easy and quick. The flap closes and can be tied down to ensure the load is securely transported and stored.  

Pros: Ideal for quick-filling applications. Allows for rapid fill.  

Duffle Top Bulk Bags

Duffle Top FIBCs are another popular bag for quick filling applications. The bag opens and extrudes outwards to allow rapid filling. The duffle top can be closed and tied to ensure the load is securely transported and stored.  

Pros: Ideal for quick filling applications. Allows for rapid fill. Widely available. 

Spout Top Bulk Bags

Spout Top FIBCs are one of the most commonly used types of bags. Spout top bags are the standard for most filling equipment and are great for a very controlled filling. The spout top can be closed and tied to ensure the load is securely transported and stored.  

Pros: Standard for most filling equipment. Great for controlled filling. 

Open Top Bulk Bags

Open Top FIBCs are ideal for quick filling applications. Open Top bags are usually accompanied by a flat or spout bottom. Open top bags are commonly used for building materials, scrap products, and lawn and garden applications.  

Pros: Ideal for quick filling applications. Commonly accompanied with a flat bottom or spout bottom.

Thanks for reading! 

Thanks for reading about the advantages of the various types of bag tops/filling options!  

Safety and reliability are our top priorities. Each bag that we sell has a safe working load (SWL). To make sure the product you're packing will not exceed the SWL of the bag you're interested in, you'll need to know the bulk density of the product you're packing as well as the cubic foot capacity of the bag.  

Click the button below to download our Product Weight Guide and FIBC Volume Calculator to help you determine how much weight a specific bag will hold.