Cargo Air Dunnage Bag for Container
Cargo air dunnage bags are multi-layered, reusable bags made from kraft paper and PE film that inflate on site to secure cargo in trucks, trailers, and overseas containers. They prevent load shifting, impact damage, and collapse during transit by filling voids between goods and container walls. The bags are designed for repeated use with a multi-use valve and can withstand loads up to 20 tons when properly inflated.
- Inflates on site to fill irregular voids in containers and trailers without pre-filling storage space
- Reusable and recyclable, reducing packaging waste and long-term material costs
- Multi-layer construction with PE and PA film seals prevents air loss and maintains pressure
- Can secure loads up to 20 tons with working pressure not exceeding 0.2 bar / 20 kPa / 2.8 PSI
Include the carton size and the monthly volume and the reply will contain a format recommendation, not just a price.
Key Benefits
- Inflates on site to fill irregular voids in containers and trailers without pre-filling storage space
- Reusable and recyclable, reducing packaging waste and long-term material costs
- Multi-layer construction with PE and PA film seals prevents air loss and maintains pressure
- Can secure loads up to 20 tons with working pressure not exceeding 0.2 bar / 20 kPa / 2.8 PSI
- Multi-use valve allows repeated inflation and deflation for multiple shipments
Where It Is Used
- Securing heavy machinery and industrial equipment in FCL ocean containers
- Stabilizing stacked cartons and pallets in road transport trailers to prevent shifting
- Filling large voids between irregularly shaped goods in intermodal shipping
- Protecting high-value exports during long-distance transport where load collapse is a risk
- Reusing the same bags across multiple shipments in a logistics fleet
Who It Is For
- Exporters shipping goods in FCL and LCL containers who face load shifting or collapse
- Third-party logistics providers managing freight in trucks and overseas containers
- Manufacturers of industrial equipment, machinery, and heavy goods that require secure transport
- Warehouses and freight forwarders handling mixed or irregularly shaped cargo
- Companies with sustainability goals seeking reusable and recyclable packaging solutions
Problems It Solves
- Cargo shifting and collapse during transit due to unsecured voids in containers and trailers
- Over-reliance on wooden blocks or foam inserts that take up space and add weight
- Single-use packaging that increases waste and disposal costs over time
- Inconsistent load protection when using loose fill or hand-tied straps
- High freight costs from damaged goods due to inadequate cargo restraint
Technical Features
- Multi-layer construction: kraft paper outer layer with PE film and PA film inner layer
- Heat-sealed multi-use valve for repeated inflation and deflation
- Working pressure limited to 0.2 bar / 20 kPa / 2.8 PSI to prevent over-inflation
- Inflated void fill ranges from 100 mm to 600 mm depending on model and application
- Load-bearing strength from 2.5 to 5.45 tons per bag, depending on size and model
Published Data for Cargo Air Dunnage Bag for Container
Only values published on our own datasheets appear here. If a figure you need is missing, ask for it and we will confirm it in writing.
| Product | Cargo air dunnage bag for container |
|---|---|
| Material | Kraft paper + PE film + PA film |
| Layer | Multi layer |
| Color | Brown, White |
| Max Load | 20 tons |
| Working Pressure | Do not exceed 0.2 bar / 20 kPa / 2.8 PSI |
| Void Fill Range | 100 mm to 600 mm |
| Reusability | Reusable with multi-use valve |
| Inflation Method | Manual or air inflator |
| Sealing Type | Heat seal |
Materials
- High-strength kraft paper for outer layer with excellent tensile strength
- PE film inner layer to prevent air leakage and improve seal integrity
- PA film inner layer to enhance puncture resistance and air retention
- Multi-use valve made from durable heat-sealed material for repeated use
How It Is Made
Kraft paper and film layers laminated under controlled heat and pressure
Multi-layer web passed through heat sealing station to form sealed chambers
Valve integration at the sealing stage for consistent placement and function
Cut to specified dimensions using precision slitting and cutting equipment
Final inspection of seals and valve function before packaging
How It Is Checked
Incoming kraft paper and film materials checked for thickness and strength
Seal integrity tested on sample bags during production runs
Valve function verified by inflation and pressure hold test
Final bag dimensions and weight verified against the model specification
Cartons checked at container loading against the packing list
Customisation Options
- Custom sizes available upon request to match specific cargo or container dimensions
- Custom color options for kraft paper or printed branding on the outer layer
- Custom valve type or placement for specific inflator compatibility
- Bulk packaging options tailored to shipping and handling needs
How It Compares With the Alternatives
Where another material is the better answer we say so, because a returned shipment costs more than a lost order.
| Wooden blocks | Lighter, reusable, and easier to store; no risk of splinters or damage to goods |
|---|---|
| Foam inserts | Reusable and recyclable; no waste from single-use foam and lower long-term cost |
| Plastic air bags | More sustainable with kraft paper outer layer; better for buyers with environmental targets |
| Strapping and shrink wrap | Provides active void filling and load stabilization, not just surface restraint |
How to Use It
Place the bag in the void space between cargo and container wall
Attach the inflator to the multi-use valve and inflate to the recommended pressure
Do not exceed 0.2 bar / 20 kPa / 2.8 PSI to avoid over-inflation and damage
Check that the bag holds pressure and maintains shape after inflation
Deflate and store flat after use for reuse in future shipments
Cargo Air Dunnage Bag for Container in Detail
Photographs of the actual product as supplied, not renders.
Cargo Air Dunnage Bag for Container Questions
Can these bags be reused after deflation
Yes, the multi-use valve allows repeated inflation and deflation for multiple shipments.
What is the maximum working pressure
Do not exceed 0.2 bar / 20 kPa / 2.8 PSI to prevent damage to the bag or risk of failure.
Are custom sizes available
Yes, custom sizes can be produced based on your cargo dimensions and container fit.
How are the bags packed for export
Bags are packed flat in cartons. The number and weight per carton depend on size and model. Confirm the exact packing details on request.
Is the kraft paper outer layer recyclable
Yes, the kraft paper layer is recyclable. The film layers are not, but the entire bag is designed for reuse to reduce waste.
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Tell us the quantity, the destination port and the specification you need. We will confirm what runs, what is stock and what fits in a container.