Short Description

BULK-FLOW’s Cubic Bulk Bags also known as baffle bags are primarily designed to increase payload when shipping them in marine shipping containers by maintaining a cubic shape when filled. The cubic shape eliminates voids in between them inside of the container.

Through the use of proprietary software, BULK-FLOW provides its customers with payload optimization studies to determine the ideal dimensions for the bulk bags, given the product’s properties and the intended marine shipping container size.


  • BULK-FLOW’s baffle bulk bags minimize bulging to maintain maximum cubic shape and reduce volume wasting voids inside when loaded inside of marine shipping containers.
  • BULK-FLOW performs payload optimization by computerized analysis to determine the bulk bags ideal dimensions.
  • BULK-FLOW’s baffle bulk bags improve the stability properties of the super-sack.


Detailed Description

BULK-FLOW’s baffle bags focus on 2 critical packaging performance aspects:

1. Payload optimization

Bulk Bags with a cubic shape provide a better fit in marine shipping containers, compared to round shape bulk bags that produce space losing voids in between the bulk bags when loaded in the marine shipping container.

The payload optimization increases usage of the available space in the marine shipping container and, therefore, reduces the freight costs. Freight cost reduction is the single most substantial source of saving.

The cubic shape is achieved through the use of inner baffledlLiners that restrain the sides of the super-sack, to prevent an inefficient round form.

The inner baffled liners are manufactured with an automatic machine to ensure quality consistency and performance.

2. Stable stackability

The cubic shape of the super-sack is achieved through the use of internal corner woven baffles that connect from one side of the super-sack to the other, and restrain the natural tendency of the sides to become round.

Not only does the cubic shape make for a better transporting fit into a marine shipping container, but it also enhances the stability of the bulk bags when stacked. The square footprint provides a more stable base to stack the bulk bags.

Cubic bulk bags are low cost and their benefits compensate, by far, the extra cost of the addition of internal corner woven baffles.

All of BULK-FLOW’s bulk bags are constructed with a 5:1 SWL – designed to withstand five times the work load. The fabric is UV treated, manufactured to ISO standards and A.I.B. (American Institute of Baking) audited for food grade environments.  Quality assurance is monitored for adherence to specifications and quality.

Top Spout Designs:

Full Open Top

Spout Top

Cone Top

Oversized Top

Bottom Spout Designs:

Flat Bottom

Flat Bottom with Spout

Cone Bottom

Full Open Bottom

Bottom Spout with star cover

Construction Designs:






  • Cubic with baffles system
  • Custom
  • Woven PP
  • Custom
Unloading by Tilting
    Ideal for Shipping
    • Any dry flowable commodity
      • No
      Food Grade
      • Yes