What Are Dunnage Airbags and How Do They Work?
When shipping cargo, preventing load shifts is crucial to ensuring safe and damage-free transportation. One of the most effective solutions for cargo stabilization is dunnage airbags—but what exactly are they, and how do they work?
What Are Dunnage Airbags?
Dunnage airbags (also called inflatable dunnage bags or load securing airbags) are heavy-duty, inflatable cushions made from multi-layered kraft paper or woven polypropylene fabric. They are designed to fill empty spaces between cargo, providing pressure to prevent movement during transit. Commonly used in trucks, shipping containers, and railcars, these airbags act as a buffer, absorbing shocks and keeping shipments secure.
How Do Dunnage Airbags Work?
- Placement – The deflated airbag is positioned in gaps between cargo or against container walls.
- Inflation – Using a hand pump or compressed air system, the bag is inflated until it snugly fills the void.
- Load Stabilization – Once inflated, the airbag applies even pressure, locking cargo in place and preventing shifting due to vibrations, braking, or sharp turns.
Key Benefits
✔ Prevent Load Shifts – Minimize cargo movement, reducing the risk of damage.
✔ Absorb Shock & Vibration – Protect fragile goods from impacts during transit.
✔ Cost-Effective – Cheaper and faster to install than wooden braces or metal bars.
✔ Lightweight & Reusable – Easy to handle and often reusable if undamaged.
✔ Versatile – Suitable for various industries, including automotive, food & beverage, and heavy machinery.
Proper Usage & Safety Tips
- Select the Right Size – Measure gaps accurately to ensure a proper fit.
- Avoid Overinflation – Follow the manufacturer’s recommended pressure limits to prevent bursting.
- Inspect Before Use – Check for punctures or wear to ensure reliability.
- Combine with Other Lashing – For heavy loads, use airbags alongside straps or chains for maximum security.
By using airbags correctly, logistics professionals can enhance cargo safety, reduce losses, and improve shipping efficiency.
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