amplifier or "air movers" from Nex Flow
Air Products Corp., are a simple, inexpensive
devices with virtually no maintenance that can
convey fumes, smoke, lightweight 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 od 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 vacumm is easily controlled
by adjusting or opening the air gap and/or inlet
pressure. Either end of the air amplifier may
be ducted to address all kinds of applications
from bringing in fresh air into an area to removing
nasty fumes. Be wary of unrealistic or unsubstantiated
amplification ratios claimed by some companies.
Replace fans, used for blow-off, cleaning, drying, cooling and conveying
Longer life in difficult environments than competative models
Lower compressed air consumption than ejectors or venturi
Maintenance free with output easily controlled
Safe to use
Amplifier Advantages Over Fans:
Compact design, simple, lightweight and portable
Driven by air, not electricity for safety
No moving parts, safer and maintenance free
Each end can be dusted for light conveying applications
"Fixed Air" Amplifier is made
of a zinc die cast system and is solid and
performs as well or better than many supposedly
patented designs when used in similiar applications.
The gap can be adjusted by using shims.
Five sizes are available.
Air Amplifier is made of anodized aluminum
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.
Amplifier - How It Works
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.
Made of Zinc alloy for strength
and light weight.
Longer life in difficult
environments than competitive models
High airflow amplification.
Lower compressed air consumption
than ejectors and venturis.
Instant on-off, no moving
parts, no electricity or explosion hazard.
Maintenance free with output
easily controlled, safe to use.
Replace fans, used for blow-off, cleaning, drying, cooling and conveying.
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.
Blow off of water from the tops of cans, bottles prior to labeling, ink jetting, palletizing or packaging. Conveying light materials.
Blow off of chemicals or water prior to labeling or packaging.
Remove water from product or packaging.
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.
Coolant and other liquid removal on process lines from Aluminum, 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.
Dust and scrap blow off. Cool moldings after extrusion, then blow off and dry prior to forming.
Cooling to set some inks, scrap blow off.
Remove liquid prior to labeling or packaging waste removal for solid materials. Extract unfilled capsules by vacuum as they pass on a conveyor.
Scrap and trim removal on textiles to eliminate expensive vacuum systems.