Exair Air Amplifiers

Air Amplifier Overview

Vent, exhaust, cool,
dry, clean - with no
moving parts!

What are Air Amplifiers?

A simple, low cost way to move air, smoke, fumes, and light materials. Air Amplifiers utilize the coanda effect, a basic principle of fluidics, to create air motion in their surroundings. Using a small amount of compressed air as their power source, Air Amplifiers pull in large volumes of surrounding air to produce high volume, high velocity outlet flows. Quiet, efficient Air Amplifiers will create output flows up to 25 times their consumption rate.

Air Amplifiers have no moving parts, assuring maintenance-free operation. No electricity is required. Flow, vacuum and velocity are easy to control. Outlet flows are easily increased by opening the air gap. Supply air pressure can be regulated to decrease outlet flow. Both the vacuum and discharge ends of the Air Amplifier can be ducted, making them ideal for drawing fresh air from another location, or moving smoke and fumes away.

Cycle time is dramatically reduced
when aluminum castings are cooled
with the high volume airflow of two
Air Amplifiers.

Applications		Advantages Compared to:
	Vent welding smoke	Fans:		Venturis and Ejectors:
	Cool hot parts		Compact, lightweight, portable	More airflow with less consumption
	Dry wet parts		No electricity	Higher flow amplification
	Clean machined parts		No moving parts - no maintenance	No internal obstructions
	Distribute heat in molds/ovens		Ends are easily ducted	Meets OSHA pressure/noise requirements
	Ventilate confined areas		Instant on/off	Quiet
	Exhaust tank fumes		Variable force and flow

How Air Amplifiers Work

Compressed air flows through the inlet (1) into an annular chamber (2). It is then throttled through a small ring nozzle (3) at high velocity. This primary airstream adheres to the coanda profile (4), which directs it toward the outlet. A low pressure area is created
at the center (5) inducing a high volume flow of surrounding air into the primary airstream. The combined flow of primary and surrounding air exhausts from the Air Amplifier in a high volume, high velocity flow.

Model Comparison

	Air Amplifier Comparison
	Efficiency	Sound Level	Mounting Flange	Flow Adjustment	Temp. Rating	Corrosive Applications
Super Air Amplifier	High	Low	Yes	With Shims	275°F (135°C)	No
Aluminum Adjustable Air Amplifier	Medium	Variable	No	Infinite (No shims)	275°F (135°C)	No
Stainless Steel Adjustable Air Amplifier	Medium	Variable	No	Infinite (No shims)	400°F (135°C)	Yes
High Temperature Air Amplifier	High	Low	No	With Shims	700°F (374°C)	Yes

Special Air Amplifiers

EXAIR manufactures special Air Amplifiers suited to specific application requirements. The Model 121021 High Temperature Air Amplifier (shown on the right) was developed for moving hot air to surfaces requiring uniform heating while in a furnace or oven. Modeled after our Super Air Amplifier, the High Temperature Air Amplifier is the most efficient for pushing high volumes of hot air to points that typically remain cool. This special design is rated for environments up to 700°F (374°C) and its surface is protected from heat stress by a mil spec. coating process (developed for the aircraft industry), allowing easy disassembly for changing shims or cleaning.

If you have special requirements, please contact an Application Engineer at 1-510-352-8199 to discuss the application.

A Model 121021 High Temperature Air Amplifier directs hot air to a rotational mold cavity for uniform wall thickness of the plastic.

Ordering Information
Code	Name	Order Now!
EX6241	Exair 6241 1-1/4" (32mm) Aluminum Adjustable Air Amplifier Kit
EX6242	Exair 6242 2" (51mm) Aluminum Adjustable Air Amplifier Kit
EX6244	Exair 6244 4" (102mm) Aluminum Adjustable Air Amplifier Kit
EX6030	Exair 6030 3/4" (19mm) Stainless Steel Adjustable Air Amplifier
EX6031	Exair 6031 1-1/4" (32mm) Stainless Steel Adjustable Air Amplifier
EX6032	Exair 6032 2" (51mm) Stainless Steel Air Amplifier
EX6034	Exair 6034 4" (102mm) Stainless Steel Adjustable Air Amplifier
EX6230	Exair 6230 3/4" (19mm) Stainless Steel Adjustable Air Amplifier Kit
EX6231	Exair 6231 1-1/4" (32mm) Stainless Steel Adjustable Air Amplifier Kit
EX6232	Exair 6232 2" (51mm) Stainless Steel Adjustable Air Amplifier Kit
EX6234	Exair 6234 4" (102mm) Stainless Steel Adjustable Air Amplifier Kit

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Air Amplifier Overview
Super Air Amplifier
Adjustable Air Amp

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