All of our bulk bags are made from woven polypropylene fabric.  The most important aspects of using bulk bags for packaging include the following, proper design, lifting loops, filling & discharge spouts, bulk bag liners and good construction and quality.

To begin the process of selecting the size of a bulk bag, you must first take in to consideration the weight of the product and it's bulk density.  Lift loops can be sewn to the bag corners, or cross corner to allow fork lifts to easily insert the forks into the loops with ease. 

Fill spouts come in a standard dimension of 14' wide by 18" long.  However can be custom made to fit a specific filling machine.  Discharge spouts come standard like the fill spout, 14x18.  Although they should be wide enough to easily allow the material to discharge quickly.  There are other types of bottom constructions for bulk bags, which include a plain bottom, conical bottom (which aids in the flow of product), Diaper bottom, or full open bottom.

Bulk bags with liners are designed to prevent moisture from the product.  The most common liners are tube liners, with a typical liner being made from polyethylene in a 3 mil. thickness.  Liners can be sewn in to the fabric seams or tabbed in all 8 corners of the bag, which is a design that will prevent the liner from coming out of the bag during discharge.

Most bulk bags are made with a 5:1 safety ratio for single trip bags with a standard safe working load between 500 lbs. - 4000 lbs., and a 6:1 ratio for multi-trip bags can go up to 5000 lbs.  UN certified bags are tested to a 8:1 safety ratio.  Bulk bags can be made for food or pharma products as well.

Options include Type A & B bulk bags.  Type C groundable bulk bags, and Type D Crohmiq static protective bulk bags.  Custom Logo and artwork printing is also available. Baffles can also be added to the bag interior to provide a stronger design and to maintain the shape of the bag when filled.