1300 879 613   sales@pneutech.com.au

Air Amplifiers

air amplifiers nexflow

For blowoff, clean, cooling, drying and venting with reduced air and noise levels.

Pneutech is the Australian distributor for the innovative Nex Flow™ product range.

pdfDownload Nex Flow Air Amplifiers Brochure


Air Amplifiers or “Air Movers” are a simple, inexpensive device with virtually no maintenance that can convey fumes, smoke, light weight materials, and move a high volume of air for cooling, blowoff and drying applications. They use the “coanda effect” which entrains a large amount of surrounding air using only a small amount of compressed air. The effect is an amplification of up to 17 times the airflow or more (depending on the size) with reduced noise levels. Using only compressed air, the output flow and vacuum is easily controlled by adjusting or opening the air gap and/or inlet pressure. Either end of the amplifier may be ducted to address all kinds of applications from bringing fresh air into an area to removing nasty fumes. Be wary of extremely high unrealistic or unsubstantiated amplification ratios claimed by some companies.


– Made of zinc die cast system is solid and perform as well or better than many supposedly patented designs when used in similar applications. The gap can be adjusted by adding shims. Five sizes are available.

– Made of anodised aluminium or stainless steel for high temperature or food applications. The customer can set the gap and lock it in place using a lock ring. Three sizes are available.


A small amount of compressed air enters the annular chamber at point (A) that is then throttled through a small ring nozzle at high velocity and into the inside of the amplifier over a coanda profile. The compressed air stream clings to the coanda profile as it enters the inside walls of the amplifier and thereby creating a vacuum that induces the outside air at point (B) converting the pressure into amplified airflow. The amplified of airflow leaves at the exit at point (C). Airflow is further amplified downstream at point (D) by entraining additional air from the surroundings at the exit.

adjustable air amplifier picAIR AMPLIFIER FEATURES

  • No moving parts.
  • Compact design, simple, lightweight and portable.
  • Driven by air not electricity.
  • Replaces fans used for blowoff, cleaning, drying, cooling and conveying.
  • High airflow amplification.
  • Instant on-off, no electricity or explosion hazard.


  • Longer life in difficult environments than competitive models.
  • Lower compressed air consumption than ejectors and venturi.
  • Maintenance free with output easily controlled, safe to use.


  • Compact design, simple, lightweight and portable.
  • Driven by air, not electricity for safety.
  • No moving parts hence safer and maintenance free.
  • Each end can be dusted for light conveying applications.


Replace fans, used for blow-off, cleaning, drying, cooling and conveying.

  • Automotive: Remove water, coolant, dust, and scrap in parts manufacturing/assembly operations. Cool enamel and water based paints in parts manufacturing, auto body shops or assembly lines.
  • Bottling: Blow off of water from the tops of cans, bottles prior to labeling, ink jetting, palletising or packaging. Conveying light materials.
  • Chemicals: Blow off of chemicals or water prior to labeling or packaging.
  • Food: Remove water from product or packaging.
  • General Manufacturing: Part ejection, fume removal, dust and liquid blow off from all types of parts, conveying away waste, ideal for replacing fans in some cooling operations such as tempering glass.
  • Metals: Coolant and other liquid removal on process lines from Aluminium, Steel, Brass or other materials. Dry metals prior to other operations such as plating or polishing. Cool metal parts prior to coating or painting. Coolant mist removal. Boost vacuum systems to remove grinding dust. Cool steel forgings.
  • Paper & Lumber: Sawdust removal and control by boosting the vacuum system, dust removal. Trim removal in converting applications.
  • Plastic: Dust and scrap blow off. Cool moldings after extrusion, then blow off and dry prior to forming.
  • Printing: Cooling to set some inks, scrap blow off.
  • Pharmaceutical: Remove liquid prior to labeling or packaging waste removal for solid materials. Extract unfilled capsules by vacuum as they pass on a conveyor.
  • Textile: Scrap and trim removal on textiles to eliminate expensive vacuum systems.

Contact Pneutech's Head Office for more information

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