Bagged products can accumulate water on their external surfaces after:
. Washing
. Rinsing
. Water spraying
. Cleaning
. Sterilization
. Wet-process handling
. Condensation
Residual water can interfere with:
. Labeling
. Printing
. Packaging
. Carton packing
. Inspection
. Product appearance
For automated production lines, a Tornado Air Knife blow drying machine can provide a non-contact method for removing surface moisture.
Why Are Bagged Products Difficult to Dry?
Flexible packaging is different from rigid bottles.
A bag may have:
. Flexible surfaces
. Wrinkles
. Sealed edges
. Folded areas
. Uneven geometry
. Different surface materials
When the product moves along a conveyor, the shape can also change.
Therefore, the airflow system needs to be designed according to the actual packaging format.
How Does the Tornado Air Knife Work?
The Tornado Air Knife generates a powerful airflow around the product.
As the bagged product passes through the drying station, the airflow interacts with surface water. The water is displaced from the package surface.
A typical process can be:
Wet Product → Conveyor → Tornado Air Knife → Surface Water Removal → Inspection / Labeling → Packaging
No wiping roller or brush is required for the airflow drying process.
Potential Applications
Tornado Air Knife drying can potentially be used for:
. Bagged food products
. Flexible packaging
. Pouch packaging
. Sachets
. Plastic bags
. Pharmaceutical packaging
. Household product packaging
. Industrial bagged products
The actual application depends on the packaging material and downstream process.
Why Use Non-Contact Drying?
A mechanical wiping system can contact the package surface. For certain products, contact may create problems such as:
. Surface marks
. Packaging deformation
. Contamination transfer
. Mechanical wear
. Additional maintenance
Air-based drying avoids direct mechanical wiping.
This can be particularly useful for lightweight or flexible packages.
Drying Before Labeling
One common application is drying a bagged product before labeling.
The production sequence may be:
Cleaning → Drying → Labeling → Coding → Inspection → Packaging
If residual moisture remains on the surface, it may affect label adhesion or print quality. A properly positioned air knife can remove loose surface water before the next process.
What Should Be Considered?
Package Size
The airflow system should accommodate the package dimensions.
Package Material
Different films and packaging materials have different surface properties.
Product Stability
The airflow should not unnecessarily move or deform lightweight packages.
Conveyor Speed
Airflow interaction depends on production speed.
Water Condition
The amount and distribution of residual water affect the required drying configuration.
Tornado Air Knife vs. Traditional Manual Wiping
Contact | Non-contact | Direct contact |
Automation | High | Low |
Continuous production | Suitable | Labor dependent |
Consistency | Process dependent | Operator dependent |
Surface contact | No wiping | Yes |
Integration | Production-line compatible | Limited |
The correct drying method should be selected according to the actual product and production requirements.
Pokmen Bagged Product Drying Solutions
Foshan Pokmen Industrial Equipment Co., Ltd. develops industrial air knife and blow drying systems for automated production.
Our solutions can be considered for:
. Bagged products
. Flexible packaging
. Bottles
. Cans
. Glass containers
. Plastic packaging
. Industrial components
The airflow configuration can be customized according to product dimensions and production-line conditions.
Frequently Asked Questions
Can a Tornado Air Knife dry flexible packaging?Yes. It can be considered for suitable bagged and flexible packaging applications.
Will the airflow damage the package?The airflow must be selected according to the package material, weight and stability. Proper engineering is important.
Can it remove water before labeling?Yes. Surface drying before labeling is one potential application.
Can the equipment be customized?Yes. Pokmen provides customized industrial blow drying and air knife systems.
About Pokmen
Foshan Pokmen Industrial Equipment Co., Ltd.
Contact: Mr. Li
Tel: +86 18620114047
WhatsApp: +86 18620114047
Email: liyancan001@gmail.com
Address: Unit 01, 2/ F, Building 3, Tuoye Zero-Carbon Intelligent Manufacturing Industrial Park, No.13 Zhanhe Road, Shangliao Village, Beijiao Town, Shunde District, Foshan, Guangdong, China.
For bagged product drying, flexible packaging drying and customized Tornado Air Knife systems, contact Pokmen.




