Both the bulk bag itself and the bulk bag filling equipment must be designed to control dust during filling. First, always use an inlet-spout bag (vs. an open-top duffle bag) with a dust-tight connection to the fill tube for the best in dust control. A fill tube with an inflatable collar that expands to securely hold the inlet spout onto the tube or cylinder during filling will provide the most seamless, dust-tight connection.
Second, check to make sure that the product cannot escape through the bag fabric or bag seams. This may require a coated bag or bag with a liner if you are filling the bag with very fine particles.
Next, select a system built specifically to contain displaced air and dust via a dust vent and collection system. This can be accomplished via a twin-tube bulk bag fill head that contains an inner cylinder through with product passes into the bulk bag while displaced air and dust are routed through the outer cylinder and into a dust collection system.
Lastly, look for a bulk bag filler design where the bag inlet spout is sealed in an enclosed chamber and kept under a slight negative pressure to minimize dusting as the bag is released and closed or sealed. Read our article “Controlling dust in your bulk bag filling operation” to learn more about bulk bag and equipment features that help to prevent dust escaping into the surrounding environment and operator exposure to dust when filling bags.