Air Knives

Air Knives utilize compressed air for industrial applications that includes drying, removing excess oils and liquids, dust blow off, and cooling. Couple with a static neutralizing bar to create an ionizing curtain to kill static cling, discharge dust, and particles for blow off.

Our patented design produces increased thrust and velocity, reduced noise, excellent uniformity, and significantly outperforms any competing, wide blowoff device. Stainless steel models are ideal for food, pharmaceutical, chemical and other applications where purity, high temperatures or corrosive environments are concerned. Click the get a quote button to have a compressed air specialist tell you more.

Air Knife Brochure Air Knife Brochure


Since air knives are air amplifiers, they use a small amount of compressed air to deliver a powerful, high velocity, sheet of air over wide areas. ISC’s air knife systems provide an optimized balance of air velocity and mass flow. This balance is required for effective and efficient performance in applications such as continuous coating control, cooling (air quench) and debris removal, as well as air drying and many others.

  • 25 times air amplification over compressed air input
  • High performance, patented design gives high thrust
  • Interchangeable shims enable air flow to be adjusted for the specific application
  • Ionizing Air Knives available in lengths of 6, 12, 18 and 24 inches
  • Single compressed air inlet up to 12 inch length; dual inlet on longer models
  • No moving parts; no maintenance
  • Quiet – meets OSHA noise specifications


Air Knife Systems have been known to cut costs by 80% compared to thermal drying and other compressed air blow off systems. An effective system can be assembled using single or multiple strategically placed air knives to for cooling, drying, cleaning or static removal on wide surfaces.

  • More uniform blow off of large surfaces than nozzles or jets
  • Dries surfaces quickly and thoroughly
  • Significantly less cost than fans or blowers
  • Reduced compressed air usage, versus open nozzles
  • Easily controlled output
  • No electrical connections at the target site
  • Easily mounted and moved
  • Give a cleaner surface for painting or coating

Air Knife Specifications

Model Length (in) Length (mm) Ionizing # of air inlets Spec Sheet
921-3 3 76 No 1
921-6 6 152 No 1
921-12 12 305 No 1
921-18 18 457 No 2
921-24 24 610 No 2
981-6 6 152 Yes 1
981-12 12 305 Yes 1
981-18 18 457 Yes 2
981-24 24 610 Yes 2

Note: Ionizing air knives require the use of a power supply.

Power Supply Specifications

Item No. # of outputs Spec Sheet
D167RY 4
F167 2