How do air knives work?

Aluminium Air Knife 2

Air Knives are simple and highly efficient devices for drying and cleaning products. An Air Knife System uses a high intensity, uniform sheet of air which is used to effectively:

  • Remove liquids
  • Dry liquid coatings
  • Remove foreign particles
  • Cool product surfaces
  • Create a hold down force to assist in the mechanical bonding of materials to the surface
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Step by Step guide through an Air Knife System

Overview of a typical air knife system

air knife drying system - air knife blower systems

Pressurised air delivered to the air knifes through the connecting pipework


Air is Discharged through the air knives as a high impact linear flow of air. This air collides with the product and shears the liquid from the surface.