Super Air Amplifiers – Adjustability for Blowoff, Drying, Cooling, Circulation and Ventilation

The Super Air Amplifier is a powerful, efficient, and quiet air mover. Applications currently in place include blowoff, drying, cooling, circulation and ventilation. Sizes from 3/4″ to 8″ are available to best match the air volume that is necessary to achieve the process goals. There are a couple of ways to change the performance of the Super Air Amplifier if either a small or large change to the output flow is required.AirAmplifiers

The chart below shows the Total Output Flow for each of the 6 models. As an example, the Model 120021 or 121021, when operated at 60 PSIG of compressed air supply, will have a total output flow of 120 SCFM. These same devices when operated at 80 PSIG will have a total flow of 146 SCFM. By simply using a pressure regulation device on the compressed air supply, the output performance can be tuned to match the desired outcome.


For those applications where much greater flow and/or force is needed, the option of installing a thicker shim is available.  The Super Air Amplifiers are supplied with a 0.003″ shim installed (the 8″ model 120028, has a 0.009″ shim as standard) and can be fitted with shims of thicknesses of 0.006″ or 0.009″ (the 8″ model has an optional 0.015″ shim.) Installation of a thicker shim increases the slotted air gap, allowing for a greater amount of controlled air flow.  As a general rule, doubling the shim thickness will double the air flow rates.

Super Air Amplifier Shims
Patented* Shim Design for Super Air Amplifiers

The Super Air Amplifier design provides for a constant, high velocity outlet flow across the entire cross sectional area,.  The balanced outlet flow minimizes wind shear to produce sound levels that are typically three times quieter than other air movers. By regulating the compressed air supply pressure and use of the optional shims, adjustability and flexibility of the unit is wide ranging and sure to meet your process needs.

If you have questions regarding the Super Air Amplifier, or would like to talk about any EXAIR Intelligent Compressed Air® Product, feel free to contact EXAIR and myself or one of our Application Engineers can help you determine the best solution.

Brian Bergmann
Application Engineer

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*Patent #5402938

Adjustable Spot Cooler as an Enclosure Cooler……Really???

Yes, is true. Many times when customers contact us about keeping a “cabinet” or “enclosure” cool, the enclosed space is not always your typical electrical or control panel cooling situation. Sometimes, customers have simple boxes or enclosed spaces that are reasonably small and need to be cooled for a variety of reasons.


This next example is one where a customer has a special light used in a paper making application. The light is exposed to high humidity and high heat which are normal constituents in paper making. The customer has had the light fail and the reasons were specifically attributed to the heat and humidity. In looking for a solution to his problem, the customer came across EXAIR and our Vortex Tube product. He researched and became familiar with the virtues of using a Vortex Tube for small cooling applications like this one.

When he contacted me his mind was pointed in the direction of a plain and simple Vortex Tube which is a good start. What I suggested to him though, was to consider using an Adjustable Spot Cooler instead. An Adjustable Spot Cooler is a Vortex Tube; however it is engineered to include heat shielding and sound muffling which make the whole use of a Vortex Tube a much more user friendly experience. Basically, I did not want the customer to try and have to figure out these issues on his own when we had a stock product ready to use right out of the box. All he has to do is to connect the unit to his box to be cooled, connect the compressed air and adjust the output temperature to what he wanted it to be.

You may ask, “Why didn’t he recommend a Cabinet Cooler?” That is a good question. I didn’t recommend a Cabinet Cooler for one good reason. Cabinet Coolers are designed with a target temperature of 95F (35C) in mind. In this case, the customer wanted to maintain close to 65F (18C). This fact fit well with the easy adjustment of the Adjustable Spot Cooler to accommodate the target temperature. Flexibility was a key feature in terms of being able to set the target temperature and have it field adjustable as well.

Neal Raker
Application Engineer