Finding What You Want – A Black Friday Blog

In the United States, today is the day that we traditionally call “Black Friday” – the retail industry’s unofficial “start of Christmas gift shopping season” – where stores made a habit of opening up early with deep discounts on select items. Here’s the deal: these are SELECT items (that THEY select) and the hopes are, you’ll buy more stuff (that may or may not be on sale) while you’re there. If you know exactly what you want, it can be a good deal for you. If you don’t, it can be a good deal…for the store.

Although we don’t have Black Friday sales events (in fact, we – and I believe most others in the industry, are closed today,) it still makes good sense to know what you’re looking for before you start shopping.  Let’s consider something basic, like an air gun.

Left-right: Precision, Soft Grip w/Stay Set Hose, Heavy Duty w/Rigid Extension, & Super Blast Safety Air Guns. With so many to choose from, we've got the one you're looking for.

Left-right: Precision, Soft Grip w/Stay Set Hose, Heavy Duty w/Rigid Extension, & Super Blast Safety Air Guns. With so many to choose from, we’ve got the one you’re looking for.

Price: this can be a real two-edged sword…not much is cheaper than a commercial grade air gun that you can buy at just about any hardware store. But, they can use upwards of 50 SCFM.  By comparison, our Model 1210 Soft Grip Safety Air Gun uses only 14 SCFM (@80psig supply pressure.)  And in any typical industrial blow off application, it’ll do the exact same thing, and cost WAY less to operate.  Use this calculator to find out.

Sound level:  you won’t find a quieter blow off product on the market.  At 80psig, the 1210 Safety Air Gun is only running at 74dBA.  Others can be well over 100dBA…that’s up to 3 times as loud, and well in excess of OSHA’s limits published in Standard 29CFR1910.95(a).

Safety: OSHA also limits the dead-end pressure of compressed air blow off devices used for cleaning purposes, to 30psig.  Unless it’s fitted, or designed, with a relief feature, you can’t supply it with any more than 30psig compressed air…which won’t really do a lot, when you think about the jobs you want to use an air gun for.  Ours can’t be dead ended, so you can supply them with 80-100psig for strong performance AND safety…by design.

Durability: You get what you pay for.  Normally, I would say “’nuff said,” but for further proof of this, I submit this blog, from the archives, on our Durable, Safe, and Efficient Safety Air Guns.  ‘Nuff said (now, anyway.)

If you’d like to talk about your compressed air product application, and how an EXAIR Intelligent Compressed Air Product might be the solution you’re looking for, give me a call.

Russ Bowman
Application Engineer
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Happy Thanksgiving!

Knowing many of you may be distracted by the thought of Mom’s (or Dad’s) home cooking – we would like to wish you all a Happy Thanksgiving! Enjoy any time off, and your families and friends.

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Enjoy,
The EXAIR team
1-800-903-9247

Replacing Water Cooling With Air Amplifiers

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Copper tubing in need of air-powered cooling

The copper tubing shown above is heated in an annealing furnace to a temperature of 175°C (347°F).  This tubing is stacked on racks in 100kg rolls, with 4-6 rolls of copper per rack, and then fed into the oven shown below.  When the tubing exits the oven, water is used to cool the copper to a temperature of approximately 35°C (95°F) with an ambient temperature of ~20°C (68°F).  While effective, the use of water to cool the copper is something the manufacturer would like to replace due to constant maintenance, safety issues and cleanup time, preferring instead to use air to provide the required cooling.

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The copper tubing travels through this oven

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The racks used to stack the copper tubing

I’ve blogged before about the process of determining how much air volume is needed to remove a specific amount of heat.  (You can read previous blogs here and here.)  This application was no different, and I used the flow chart shown below to determine the volume of 20°C ambient air needed to cool this aluminum.

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Airflow calculation process

Using the process outlined above, I determined the application would need 1,133 CFM of air at 20°C to cool these copper coils in one minute. This application, however, has up to 20 minutes available to cool these coils, allowing for a reduced volume of air.  Extending the time available to 2 minutes, and thus reducing the volume requirement to 566.5 CFM (566.5 CFM for 2 minutes = 1,133 CFM for 1 minute), we can definitively say that a series of our model 120022 Super Air Amplifier will be able to provide ample cooling.  (See below for airflow from model 120022 at 5.5 BARG (80 PSIG) at a distance of 6” from the Air Amplifier outlet.)  And, in order to evenly cool the coils, (4) of these Air Amplifiers were recommended, distributed evenly around the coils.

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Performance for model 120022 operated at 80 PSIG shown in the red circle on the right

Using a bit of calculation, we were able to provide a specific solution for this customer, eliminating the need for water in the cooling phase of this application.  If you have a similar application, or would like to discuss a compressed air solution for your application, contact an EXAIR Application Engineer.

Lee Evans
Application Engineer
LeeEvans@EXAIR.com
@EXAIR_LE

How To Not Use Any More Compressed Air Than You Have To

It should be no secret that EXAIR is all about compressed air efficiency. Our Super Air Knife is the most efficient (and quietest) blow off product on the market today. Our Application Engineering team is tech savvy, highly trained (continuously,) and dedicated to the goal of making sure you get the most out of our Intelligent Compressed Air Products and your compressed air system.  All of our products are engineered with efficiency and value in mind…and if it’s in the catalog, it’s right here in stock, so you can get it right away.  So that’s one way to not use any more compressed air than you have to…start saving it RIGHT NOW.

If you care about your compressed air use, you need one of these. Click here to get one sent to you today!

If you care about your compressed air use, you need one of these. Click here to get one sent to you today!

In addition to the highly efficient design of the Super Air Knife, we also help you to not use any more compressed air than you have to by offering them in any length you need.  We’ve got sixteen lengths in stock because, again, why wait to start saving?  We can also custom cut a Shim for any of those to get you just the air flow you need, or we can fabricate a custom length Air Knife if you’re space-limited.  You can have either of those in just three days.

Buy a Super Air Knife before December 31, 2016, and get a FREE Safety Air Gun!

A FREE Safety Air Gun is another great way to not use any more compressed air than you have to.

With sixteen stock lengths to choose from, product selection oftentimes comes down to which one(s) a user thinks will solve their application.  Such was the case just last week, when a major manufacturer of packing/shipping materials & supplies was building a new blow off station.  Based on their intended design, they ordered four Air Knives: (2) Model 110018 18″ Aluminum Super Air Knives, and (2) Model 110024 24″ Aluminum Super Air Knives.  I’ve written before about how something might have “looked good on paper,” and that’s what happened here…they found out that despite their design considerations, they just didn’t need all 24″ worth of air flow from two of those units, so they wanted to get two more 18″ Super Air Knives to replace them.  And it was an easy fix: this morning, we processed the order for (2) more 18″ Super Air Knives, and arranged for the return of the (2) 24″ ones…which we will issue full credit for, per the terms of our 30 Day Unconditional Guarantee.  They’ll start not using any more compressed air than they have to tomorrow, and it’s not costing them a dime.

You too, dear reader, can start saving quickly by calling me now to discuss your compressed air use, and which EXAIR Engineered Compressed Air Product is right for you.  Why wait?

Russ Bowman
Application Engineer
EXAIR Corporation
(513)671-3322 local
(800)923-9247 toll free
(513)671-3363 fax
Web: www.exair.com
Blog: http://blog.exair.com
Twitter: https://twitter.com/exair_rb
Facebook: http://www.facebook.com/exair

Blowing Water from Hard-To-Reach Places

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Cables boxes stacked after leak testing

One of the areas of expertise for our Application Engineers is in compressed air blow off applications.  Finding the proper Air Knife, Super Air Nozzle, or Safety Air Gun to suit an application can be as simple as considering a few variables (such as the required force to blow off the item in question), or as complicated as examining tolerance specs within the application to determine whether our products are the right fit (hint: we have CAD drawings available on our site to help with this, too).

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These boxes needed a better way to remove water after submerged leak testing

Earlier this week I was contacted by an industrial service provider which performs leak testing on cable boxes.  The boxes (shown above) are submerged in water as part of an inspection process, and after this process is complete, the water needs to be removed.  The current method of drying the boxes is to allow the boxes to drip-dry, but this presents several problems.  Firstly, drip-drying does not remove all the water from the crevices of the heat sinks, and it leaves unsightly water stains on the outside of the boxes (a small problem, but something to be avoided, if possible).  But, most importantly, allowing the boxes to drip-dry creates a bottleneck in the testing process, reducing throughput due to increased time needed for drying.  So, the service provider reached out to EXAIR in search of a solution to easily, effectively, and quickly remove the water from the heat sinks of these cable boxes.

In order to determine the best solution, we discussed application parameters surrounding the process.  The most important aspect, after determining how much force is needed, was the degree to which the process is automated vs. manual.  Due to the manual nature of the process, a manual blow off would be most suitable, and we determined that the model HP1230 Soft Grip Safety Air Gun would be the best fit for this application.

Coupled with a model 9008 pressure regulator to allow for reduction in line pressure (if needed) this solution provides an efficient, safe, and repeatable means to blow off the water from these cable boxes.  If you have a similar blow off application, or would like to discuss another application, contact an EXAIR Application Engineer.

Lee Evans
Application Engineer
LeeEvans@EXAIR.com
@EXAIR_LE

This Is A Hold Up

To clarify, right off the bat:

  1. Nobody is getting robbed here.
  2. Nothing is being delayed, especially a shipment from EXAIR. If it’s in the catalog, it ships on time, 99.97% of the time, for 17 years & running. This has nothing to do with this blog; I just never get tired of bragging about that.

Today I wanted to write about installing EXAIR products, but hey, it’s Friday, so I thought I’d start with something that would get your attention. If you’re still reading, I guess it worked.

We talk to users…and potential users…all the time about how to install an Air Knife, Air Nozzle, Vortex Tube, etc. And the answer is…it depends. But, it’s almost always quick and easy.

Consider the EXAIR Super Air Knife. There are a few ways to hold one in place:
*There are 1/4″-20 tapped holes, every 2″ along the bottom. These can be used to bolt it to just about anything you want to bolt it to.
*The 1/4″-20 cap screws can also be replaced with fasteners of sufficient length to allow use of a bracket. In fact, this is what we use for…
*The Universal Air Knife Mounting System – it’s a quick and convenient way to support an Air Knife. It’s especially beneficial to precisely position the Super Air Knife for optimum performance.
*Last but not least, Super Air Knives 24″ and longer need to be plumbed to both ends for proper performance. If you hard pipe it in, it’ll be as well supported as the piping.

EXAIR Super Air Knives are easy to install, no matter what the length, or application.

EXAIR Super Air Knives are easy to install, no matter what the length, or application.

Then there’s our Super Air Nozzles:
*With standard, common NPT threads, these are easy to install anywhere you have an existing air line. You can get NPT adapters for darn near any threaded connection, off the shelf, from a friendly local air compressor or hydraulic/pneumatics shop.
*We’ve got Stay Set Hoses in lengths from 6″ to 36″ – these let you reposition the Air Nozzle at will. It’ll “stay set” until you bend it again.
*Our Swivel Fittings can be used with any of our Super Air Nozzles, as well as our Air Amplifiers, for sturdy, yet easily repositionable, installation.

EXAIR Swivel Fittings or Stay Set Hoses - no better way to optimize your air flow than aiming it where it needs to be!

EXAIR Swivel Fittings or Stay Set Hoses – no better way to optimize your air flow than aiming it where it needs to be!

We’re even committed to making our air preparation accessories easy to install…our Automatic Drain Filter Separators, Oil Removal Filters, and Pressure Regulators (up to 1/2 NPT) can be coupled via a modular block assembly that eliminates a threaded connection between them, and is ideal for close quarters.

EXAIR Model 9027 Oil Removal Filter, installed between Model 9004 Filter Separator and 9008 Pressure Regulator, using our Modular Coupling Kits

EXAIR Model 9027 Oil Removal Filter, installed between Model 9004 Filter Separator and 9008 Pressure Regulator, using our Modular Coupling Kits

That’s not even mentioning the products that are ready to install, right out of the box with a convenient Magnetic Base:

From left to right: EXAIR Mini Coolers, Cold Guns, and Adjustable Spot Coolers come with Magnetic Bases for instant installation.

From left to right: EXAIR Mini Coolers, Cold Guns, and Adjustable Spot Coolers come with Magnetic Bases for instant installation.

If you’d like to find out more about how easy it is to install an EXAIR Compressed Air Product, give me a call.

Russ Bowman
Application Engineer
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Solving Special Application Needs with Special Solutions

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A 6″ Full Flow Air Knife installed on a Soft Grip Safety Air Gun

Every application has its own unique needs and solution characteristics.  Most of the time, thankfully, we can meet those needs and solution requirements with our stock products and through discussions with our Application Engineers.  There are, however, a number of applications which need something more than what we have readily available on the shelf.  Sometimes those needs relate to a special Air Knife (no problem there), a special cold fraction preset on a Vortex Tube (no problem there, either), or even specially machined flanges designed to bolt into the application (again, no problem for EXAIR).

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This specialized solution provides exactly what the application requires

And then there are solutions like that which is shown above, comprised of stock products and off-the-shelf components, but assembled to meet a specific requirement of the application.  In this case, the customer needed the performance of an Air Knife, with the mobility of a Safety Air Gun.  The purpose of combining these two devices was to allow for wide area blowoff in a single pass, as opposed to multiple passes needed with a traditional setup.  And, with a little legwork on the backend in our engineering department, we created a specialized part number to meet this application need.

So, when this customer needed another solution to replicate this setup, they knew who to contact, and were certain that they would be able to find exactly what they need.

If you have an application in need of an application-specific solution, contact an EXAIR Application Engineer.  We’ll be happy to help.

Lee Evans
Application Engineer
LeeEvans@EXAIR.com
@EXAIR_LE

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