
Windblade™ air knife
Even airflow for drying, cooling and cleaning
An air knife shapes the airflow from a side channel blower into a flat, even, high-velocity jet. This removes water, dust and chips from products without contact.
FPZ has developed the shape and internal geometry of the Windblade™ air knives around the airflow and matched them to its own blowers. The adjustable nozzle lets you adapt air velocity and pressure to your application.
Material
Aluminium or stainless steel
Nozzle
adjustable from 0.2 to 5 mm
Length
100 to 2,000 mm
Maintenance
none
Why Windblade™?
Compressed air from a compressor is expensive for drying and blow-off lines. A side channel blower with an air knife achieves the same effect with a much larger volume of air at low pressure, using a fraction of the energy.
The air knives are modular: with Y-pieces, reducers and hose sleeves, several knives can be run from one blower, fed in the middle or at one end.
- Even airflow along the entire length
- Adjustable nozzle for air velocity and pressure
- Made of anodised aluminium or AISI 304 stainless steel
- Non-corroding, also for aggressive environments
- Easy installation, modular design
- No moving parts, no maintenance
Two versions
Aluminium
- Extruded, anodised aluminium profile
- Standard lengths 100 to 2,000 mm, special lengths possible
- Nozzle adjustable from 0.2 to 5 mm
- Up to 100 °C, up to 200 °C on request
AISI 304 stainless steel
- Formed stainless steel
- Standard lengths 200 to 1,800 mm, special lengths possible
- Nozzle adjustable from 0.5 to 5 mm
- For food, chemicals and aggressive environments
Typical applications
Drying
Removing water and residues from bottles, cans, packaging, fruit and vegetables so that the products can be labelled and packed.
Cooling
Cooling plastic parts, profiles, tubes and metal parts after moulding or casting.
Cleaning
Blowing dust, chips and coolant off workpieces and conveyor belts.
Industries
Food and beverages, chemicals and pharmaceuticals, automotive, electronics, foundry, wood, textiles and construction.
Frequently asked questions
Which blower suits my air knife?
That depends on the length and number of knives, the nozzle opening and the desired effect. We calculate the required air volume and select the right side channel blower.
Aluminium or stainless steel?
Aluminium is light and suitable for most applications. AISI 304 stainless steel is the right choice for food, chemicals and wherever cleaning agents or aggressive media are involved.
Can I run several air knives from one blower?
Yes. Several knives can be supplied using Y-pieces and hose connections. The blower must then be sized for the total air volume.
Why not simply use compressed air?
Compressed air is the most expensive form of energy in a plant. For large blow-off lines, a side channel blower delivers the required air with significantly less electricity.
Downloads

Planning a drying line?
We size the air knives and blower together so that the air volume is right and no energy is wasted.