What information do I need to size a bulk bag?

1) Bulk density of your product (the weight of your product in pounds per cubic foot).
2) Maximum weight/capacity of the bag. 2,200 lbs? 3,000 lbs? Or 4,000 lbs?
3) Method of shipping. Are you shipping by truck or rail?
4) Are you using a truck trailer or a land/sea container? What Size container?
Truck container sizes are: 98” wide x 110” tall x 48’ long or 98” wide x 110” tall x 53’ long.
Land/sea container sizes are 92” wide x 106” tall x 20’ long or 92” wide x 106” tall x 40’ long.

Other information that is helpful:
5) Product flow characteristics: (helps to determine fill/discharge spout sizing).
6) Is your product free flowing?
7) Is your product hygroscopic (product absorbs water) or does your product bridge?

8) UN# (if applicable). What is the maximum weight/capacity of the bag?
Is it Packaging Group I, Packaging Group II, or Packaging Group III (if applicable).

How to Measure a Bulk Bag?

A)  Spout width (pull flat)- multiply "Pull Flat" measurment by 2, then, divide by 3.14 to determine diameter of the spout. B)  Spout length - from setting seam to top of chute. C)  Side width - measure in center of bag between inside sew lines. D)  Length inside seam - measure in center of side between sew lines.

Writing Bag Specifications

B.A.G. Corp. would recommend that you utilize our experience to maximize performance and minimize cost. Specifying by performance will not compromise bag quality and could save you money. For example, bag specifications usually include a description of the bag fabric (i.e. 6 oz.) and the design you might want or are currently be using (i.e. tubular vs. 4 panel). Instead, you might consider simply writing the spec to state that you want a woven polypropylene bag to handle 2200# with a 5:1 safety ratio. Let us then offer you the best FIBC for your application. We will decide on the optimum bag design - choosing the best materials and component parts to assemble an FIBC that will meet all of your performance criteria. Specifying by performance will allow us to give you the most cost-effective package for your FIBC requirement.