Super Air Knife’s Adjustability and Flexibility = Success

The EXAIR Super Air Knife is the most efficient compressed air knife on the market. We know this because we’ve tested them, and our competitors’ offerings, for performance, using the same instruments, controls, and procedures. We’re not going to publish data that we can’t back up, and that’s a fact.

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EXAIR Super Air Knife removing moisture after a rinse on anodized parts.

They’re also ideally suited to a wide variety of applications – they come in lengths from 3 inches to 9 feet long (and can actually be coupled together for uninterrupted air flows of even longer lengths,) a variety of materials for just about any environment. But the best thing about our Super Air Knives is how you can adjust the air pressure and flow to complete a wide variety of tasks. You can adjust them in two different ways, Replacing or adding Shims, or regulating the incoming air pressure.

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Shims for the aluminum, 303 Stainless Steel, and 316 Stainless Steel Super Air Knives

Changing out your shim!

A larger shim gap will give you higher flow and force from your Air Knife. Honestly, the 0.002″ shim that comes pre-installed in all of our Air Knives is perfectly suitable for most blow off applications, and appropriate air supply conditions are the first thing you should check for before going with thicker shims, but if you do indeed need a boost, a thicker shim will indeed give you one…here’s a blog with the video to show you how it’s done:

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Video Blog: How to Change a Shim in a Super Air Knife
Filter Regulator
Regulator and filter

Another advantage to having a Pressure Regulator at every point of use is the flexibility of making pressure adjustments to quickly change to varying production requirements.  Not every application will require a strong blast sometimes a gentle breeze will accomplish the task.  As an example one user of the EXAIR Super Air Knife employs it as an air curtain to prevent product contamination (strong blast) and another to dry different size parts (gentle breeze) coming down their conveyor. For Performance at different supply pressures see the chart below.

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Super Air Knife Performance Table

EXAIR products are highly engineered and are so efficient that they can be operated at lower pressures and still provide exceptional performance!  This save’s you money considering compressed air on the average cost’s .25 cents per 1000 SCFM.

If you’d like to discuss altering the performance of your Super Air Knife, give us a call.

Jordan Shouse
Application Engineer
Find us on the Web http://www.exair.com/28/home.htm
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Cold Guns for Spot Cooling or Replacing Mist Systems

By using only a source of compressed air, the Cold Gun and High Power Cold Gun produces a stream of clean, cold air 50°F (28°C) below your compressed air supply temperature. The Cold Gun is very quiet at only 70 dBA and has no moving parts to wear out. Just supply it with clean compressed air and it’s maintenance free.

How does it work, and what are the benefits?

  • The Cold Gun uses compressed air to produce a stream of clean, cold air at 50°F (28°C) below supply air temperature. Generally this will be 20°F-30°F outlet temperature.
  • They use Vortex Tube technology…no moving parts to wear out.

How A Vortex Tube WorksInstant cold air flow with no moving parts!

  • Cold flow and temperature are preset to optimize cooling capability, and are non-adjustable to prevent freeze-up during use.
  • Eliminates the expense of both the purchase & disposal of cutting fluids when replacing expensive mist systems.
  • Removes the potential for health problems associated with breathing mist & vapors, and the safety issue of slipping on a wet floor.

Cold Gun Aircoolant System selection is easy & straightforward…we offer a standard, and a High Power version to meet your specific needs.

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Four systems to choose from, to meet most any need.

We also offer Single & Dual Point Hose Kits, to further meet the needs of your application.

One of the best applications I have seen with our cold gun came from a customer in Peru. They are a gold mining operation and they were having trouble with the liquid they were using to cool a saw. Read all about it here!

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If you have an application that you believe would be better served by the use of an EXAIR Cold Gun, give us a call.

Jordan Shouse
Application Engineer
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Twitter: @EXAIR_JS

EXAIR Super Air Amplifiers: Saving Air, Saving Lives

 

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(2) Model 120021 Super Air Amplifiers

 

I have recently had the pleasure of working with a customer developing a method of delivering air to trapped miners during a multi-man mine rescue mission. The federal government mandates that in the event of an explosion, miners must have a safe place to retreat for a minimum of 96 hours. This system will provide them with a supply of air during that period of time. In the initial stages, they had tried using some old venturis left over from a previous project. While this did work, they weren’t as effective or efficient as they needed. Through a little bit of research, they found EXAIR.

Instead of using compressed air as the source, they’re using cryogenic liquid air. That air passes through a series of cold plates and heat exchangers and gets to the Super Air Amplifier at about 70°F. This air is then carried into the chamber, giving the miners a source of clean air.

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Model 120021 in prototype

 

EXAIR Super Air Amplifiers utilize a patented shim design that allows the unit to entrain ambient air at a rate of up to 25:1 from the compressed air supply. This balanced outlet airflow minimizes wind shear, producing sound levels that are typically three times quieter than other air movers. The Super Air Amplifiers are supplied with a .003” slotted air gap and can be adjusted by replacing the shim with a thicker .006” or .009” shim.

Do you have a cooling or drying application that could benefit from a Super Air Amplifier? Contact an Application Engineer today to find out how EXAIR can help you save compressed air in your application!

Tyler Daniel, Application Engineer
Tylerdaniel@exair.com
@EXAIR_TD

New Products, New Q & A, and New Projects

LSR 1900

On April 2, 2013, I wrote about my big Springtime Project. It is now a month and a half later and I have successfully completed my first “boot job” as they call it. I put the boat in the water last weekend and was so proud………….it didn’t sink!  Admittedly, I did keep it on the trailer while in the water at the ramp for about 15 minutes though and checked all round in the engine compartment to make sure nothing was coming through.   As many of you know, it is always a good feeling of achievement when you dig into something you know little about, research it and are able to make a successful repair. I did check with the repair department at a local marina and found out that it would have cost $1,400.00 to have them do it. Since I was able to do it for less than half of that in parts cost, that just reinforces benefit of doing it myself. I asked a lot of questions before and during the process and received a lot of good advice.

At EXAIR, I have recently fielded some questions about some of our newer products to help dispel any misnomers and bring to light some of the differences between the various models so customers can make an informed decision when they begin to look at our products and aren’t quite sure what to think…….much like me and the boat project.

One customer had asked me, “I have a lot of pneumatic actuators, a couple of Air Knives and some E-vacs on a compressed air line. I would like to mount a Digital Flow Meter to the line to know how much air we are consuming. Is it OK to permanently install the Digital Flow Meter or should I only use it on a temporary basis?”
The answer is that the Digital Flow Meters are intended to be installed permanently on a pipe for continued monitoring of compressed air flow for as long as the line is in service. In fact we have other accessory items such as the Summing Remote Display and the Data Logger which aid in monitoring flow over longer time frames.

Another customer asked, “You have quite a few different Industrial Vacuums for solid material pick-up, how do I know which one will work best for my material?  Is there a specific particle size range that each should be used for?”
The answer is that all of our solid pick –up, Industrial Housekeeping products: Chip Vac, Heavy Duty Dry Vac and Heavy Duty HEPA Vac can pick up most any solid materials as long as they will fit into the hose without clogging it. Think of the Chip Vac as our standard duty unit, the Heavy Duty Dry vac as the Heavy Duty pick-up unit and the Heavy Duty HEPA Vac the one that gives the best all round performance and can also work to filter very fine dust particles down to 0.3 micron at 99.97% efficiency.

In effect, all of our Industrial Vacuums are well suited for shop and industrial type uses. However, if you are the type of person who wants a bit more power, then HD Dry Vac and HD HEPA Vac are for you. If you have a large quantity of a very fine dust you are working with and don’t want to be clogging your filter bag immediately, then the HD HEPA Vac is our newest and best offering.

Don’t be afraid to ask questions. We make every effort to allow people to contact us in a variety of ways, so keep them coming. We can walk you through and help you get to a good point in your project.

Neal Raker, Application Engineer
nealraker@exair.com

Dad, Are You Serious!

slideIn support of those who used slide rules, comptometers, and bumper jacks…
My son was helping me clean out the basement when we came across my old slide rule. He asked what it was so I demonstrated how it worked. He looked at me with a blank stare and said ” Dad are you serious! Why not just use a calculator!” I told him because calculators were not around until the early 70’s. Then all they could do is add, subtract, multiply, and divide.

To preserve the legacy of the trusty slide rule, I challenged him to a math problem. He would use the calculator and would I used the slide rule. I won because it took fewer motions than it does with tapping a multitude of buttons on the calculator.

As an engineer, I embrace all new technology. Admittedly though, old technology is not totally useless and should not be regarded as irrelevant. Most new technology is spawned from the old. Wind power is as old as Don Quixote. Today’s wind turbines are simply a more efficient design in harnessing wind to generate electricity. Amateur Radio was a popular way to talk around the world. With the advent of the internet and cellphones  the novelty has waned. That’s not to say Ham Radio should be mothballed. In the case of a natural disaster, or if the internet would be  hacked by enemy forces, a pool of people with radio transmission skills will be called upon.

So in summary, new may be better but it does not make old useless. Preserve the old and glean from it new and improved technologies.

Joe Panfalone
Application Engineer
Phone (513) 671-3322
Fax (513) 671-3363
Web: http://www.exair.com
Twitter: http://www.twitter.com/exair_jp
Facebook: http://www.facebook.com/exair

Dude, Where’s My Air Pressure?

The question comes up every so often. “I have 10 BARG plant pressure, but can only get 2 BARG pressure on the gauge at your Chip Vac.  What is the problem?”

We call the problem “pressure drop”. And pressure drop is attributed to many things. All of them have to do with the delivery of the compressed air supply up to the point of use or product.  In this case, the product was EXAIR’s 5 Gallon Chip Vac Model 6193-5. We found that actually having a pressure gauge installed right at the inlet of the Chip Vac vacuum generating part itself help greatly for the customer to realize the nature of their problem. The sources of such problems are usually to do with the diameter of the compressed air line feeding the “device” being too small. You will probably note in the photo that the customer has installed a 6 mm inside diameter line with a quick connect fitting. Upon further questioning of the customer, this supply line was 10 meters (33 ft) long. The Chip Vac requires 33 SCFM @ 80 PSIG (934 SCFM @ 5.5 BARG) to operate as advertised. Note this is the requirement at the inlet. Where you measure pressure in a compressed air system is of utmost importance. And for any compressed air consuming device, that value is going to be as used at the inlet, not at the wall or wherever the compressed air drop may be located.

Once the customer was able to increase to a 12 mm ID line and cut the length down to about 5 meters, the Chip Vac performed as intended. This was because it was no longer starving for compressed air through the smaller line.

We notice that many customers will try to get away with using too small a diameter of compressed air line. Perhaps it is what they had on hand or it was cheap to get. The problem is they end up shooting themselves in the foot when it comes to performance of the product connected out at the point of use.

By taking the time to practice proper plumbing technique, one can save themselves a lot of headache when setting up any pneumatic equipment. Of course, if you need advice on what the proper line size needs to be for any given installation, give us a call. We’ll be glad to assist you.

Neal Raker, Application Engineer
nealraker@exair.com

American Machine Tools – Yesterday and Today

Early Bullard Machine

I just came back from the IMTS show where I saw lots of machine tools and new innovations. Having been in the industry for 40 years, I could not help but think of all the company names that I was familiar with over the years that are no longer the stars of the show. Names like Blanchard, Bliss, Bullard, Le Blonde, Kearney & Trecker, Acme Gridley have been become more or less memories of Americana.What is most interesting to me is the history of these companies and their founders. Do a little research on the internet and you will find their founders were innovators and entrepreneurs who gave birth to the term “Yankee Ingenuity” The machine tool industry is what propelled the American economy. And with unfettered freedom to pursue and develop an idea, America became the world’s leading economy.

Some companies may have come and gone, but American exceptionalism still persists despite all the social and political discourse. This was quite evident from all the exhibits at the show. I witnessed vision systems that control the process to perfection, tool bits of exotic materials improving machinability, laser cutters capable of cutting the shell of an egg without breaking it. It was obvious to me, that with american ingenuity, what were challenges are now opportunities.

Modern Bullard Machine

We at EXAIR would like the opportunity to assist you with your compressed air challenges. Give one of our application engineers a call 1-800-903-9247 and experience what we can do for you.

Joe Panfalone
Application Engineer
Phone (513) 671-3322
Fax   (513) 671-3363
Web: www.exair.com
Twitter: www.twitter.com/exair_jp
Facebook: http://www.facebook.com/exair