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Reusable Air Dunnage Bags

Even when a truck appears to be fully loaded with goods, there can still be large spaces between items, and this can mean that goods are able to slide around and get damaged during transit. This period of time, between dispatch from the factory or warehouse and arrival at the final destination is when goods are most valuable, and any damage at this stage will cause large costs, which will have a great impact on overall profitability unless measures such as air dunnage bags are used in order to give goods in transit the best possible protection from damage.

When goods are packed onto a pallet, it is very rare for them to be stacked right to the edge. This means that there is space left around the stacked boxes, and allows for a small degree of movement to take place when in the back of the truck. While a small amount of movement within the bounds of the stretch wrap will always take place, over time, this can cause the wrapping to come loose, and cause items to fall out of place, and break.

There are a number ways to minimize movement of items in transit, including placing bars across the truck to separate loads, and stacking a second pallet on top of the first to make them more secure, but both of these methods reduce the amount of available space in the truck and have an impact on profit. There is however a third way of protecting goods in transit, and this is through the use of air dunnage bags.

Quite simply, air dunnage bags are sturdy inflatable bags that fit in between the stacks of goods and prevent them from moving around too much. They are inflated using a standard nozzle, and then can be slid into place between the goods. The bags take a matter of seconds to inflate, and can be put into place along with the goods as the truck is loaded.

Once the truck arrives at its final destination, the dunnage bags can be removed with the load, and then either discarded or reused depending on their condition. Easy Rack provides a number of different options when it comes to their offering of air dunnage bags. The air bags come in a choice of sizes. Either 48 inches by 26 inches, or a much larger 48 inches by 48 inches. Both have been designed to match up with individual standard sized pallets.

In order to encourage reuse, the air bags have a high quality pressure seal that holds the bags up at up to 6 psi, while the twin skin of a polyethylene inner bag protected by a hard wearing polypropylene outer, means that they will stand up to quite a lot of punishment in use.

The cost of these air dunnage bags is low, and because they do not take up any usable space within a truck, they will have no impact on how much can be carried. As such, their use should be considered on all delivery trucks, because by better protecting items in transit, they will have a significant positive impact on the profitability of every single journey.

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If air is moving through a 20 x 20 foot area at 5 mph, what would its velocity be through a 1 inch square area?

What would be the velocity needed to move the same volume of air through a 1 inch square?

The flux has to be constant, that is the speed times the cross area.

400 foot² x 5 mph = (1/12)² x V

so V = 288 000 mph