Which Air Nozzle Is Right For Me?

Well, the obvious answer is, of course, an engineered air nozzle…you’re likely aware of this, or you wouldn’t be reading posts on the EXAIR Corporation blog.  We have no issue with narrowing that down a bit, and saying that the answer is an EXAIR air nozzle.  I bet you knew that was coming as well.  So let’s assume that, because of the cost of compressed air, the potential hazards of its unregulated discharge, and the flat-out racket it can make (unless you do something about it,) you’re looking for something efficient, safe, and quiet.

Now that we’re on the same page, let’s unpack that question.  The nature of the application will let us know the airflow pattern & characteristics (mainly flow & force) that we need.

For example, if you need just a pinpoint of airflow, our Atto Super Air Nozzle blows a 1/2″ diameter pattern at a distance of 3″.  Get a little closer than that, and it’s as tight as you want it to be.  Now, it’s only generating a force of 2oz (at 12″ away) but keep in mind that’s all concentrated in a small fraction of an inch diameter.  Which is plenty for most applications that need that precise of an airflow.

Atto Super Air Nozzle

If you DO need a little more flow & force, our Pico and Nano Super Air Nozzles offer incremental increases in performance.  The pattern starts to widen out, but that’s a function of the increased flow expanding in to atmospheric pressure…it has to go somewhere, you know.  But, again, the closer you get, the more focused the flow is to the centerline of the nozzle.

On the other end of the spectrum are EXAIR’s High Force Air Nozzles.  These are particularly useful for stubborn blowoff applications – a foundry blowing slag off hot strip as it cools, for example.  Our largest of these, a 1-1/4 NPT model, generates 23 lbs of force…that’s over 25 times the power of our standard Super Air Nozzle.

 

With 23 lbs of hard hitting force, this 1-1/4 NPT Super Air Nozzle is perfect for the most extreme blow off and cleaning jobs.

Speaking of the standard Super Air Nozzle, it’s the most popular answer to the Big Question.  It’s suitable for a wide range of blowoff, drying, and cooling applications, like the kinds of jobs an awful lot of folks use open end blowoff devices on.  Open ended tubes blow out a great amount of air, but they’re wasteful and noisy, and OSHA says you can’t use them unless you regulate the pressure to 30psig…where they’re not even going to be all that effective.

Choose from (top left to bottom right) 316SS, Zinc Aluminum, or PEEK Thermoplastic…whatever you need to stand up to the rigors of your environment.

If you’ve got a 1/4″ copper tube, for example, it’ll use 33 SCFM when supplied with compressed air at 80psig.  It’ll for sure get the job done (albeit expensively, when you think of all that compressed air consumption,) but it’ll be loud (likely well over 100 dBA) and again, OSHA says you can’t use it at that pressure.  So, you can dial it down to 30psig, where it’ll be marginally effective, but it’s still going to use more air than the Model 1100 1/4 NPT Super Air Nozzle does at 80psig supply pressure.  The hard hitting force of the Model 1100, under those conditions, will make all the difference in the world.  As will its sound level of only 74 dBA.  Not to mention, it’s fully compliant with OSHA 1910.242(b).  Oh…and you can even install it directly on the end of your existing tube with a simple compression fitting.

One of our customers installed Model 1100 Super Air Nozzles on all their lathe blowoff copper tubes, and saved almost $900 a year in compressed air costs.

We’ve also got engineered Air Nozzles smaller than the 1100 (all the way down to the aforementioned Atto Super Air Nozzle) and a good selection of larger ones, including Cluster Air Nozzles that hold tighter airflow patterns than similar performing single Super Air Nozzles.  They’re available in materials ranging from Zinc-Aluminum alloy, bare aluminum, brass, 303SS, 316SS, or PEEK thermoplastic polymer to meet the requirements of most any area of installation, no matter how typical or aggressive.

If you have an loud, wasteful, and likely unsafe blowoff, you owe it to yourself and everyone else who has to put up with it to consider a better solution.  Call me; let’s talk.

Russ Bowman
Application Engineer
EXAIR Corporation
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Advantages Of Compressed Air Operated Industrial Vacuums

Last week, I wrote about the benefits and advantages of the EXAIR Chip Trapper System. It’s just one workhorse in our stable of durable and reliable compressed air operated Industrial Housekeeping solutions.  All of our systems in this product line are compressed air operated, which means they offer several benefits that you don’t get with an electric powered vacuum:

  • Our air operated vacuums have no moving parts.  That means nothing to wear out & replace.
  • Electric motors burn out over time, and have to be replaced.  Not a problem with our products…if you supply them with clean air, they’ll run darn near indefinitely, maintenance free.
  • Using electric vacuums in wet areas can prevent a very real risk of electrocution.  This hazard does not apply to a compressed air hose, which is all it takes to run our products.
  • Long, stringy chips can get clogged in the impeller & rotating parts of a motor-driven vacuum.  Ours have no moving parts, which means nothing for detritus to get tangled up in.
Electric Vacuums are prone to clogging, wearing out, and motor failure.

Which EXAIR Industrial Housekeeping Product is right for you?  It depends on what you’ll be using it for.  Very generally speaking, here’s a brief overview of the product line:

Chip Vac Systems:

  • Pick up dry or wet chips and transfer them into a standard open top drum.
  • Available in four sizes: 5, 30, 55, or 110 gallon drums.
  • Turns your own 30, 55, or 110 gallon open top drum into a powerful vacuum system, in minutes, with a standard system.
  • Add portability and flexibility with a Deluxe System, which includes a drum dolly and a Tool Holder.
  • For a total Industrial Vacuum System, complete & ready to go right out of the box, the Premium Systems add a drum, a compressed air supply hose, an upgrade to Heavy Duty Aluminum Tools & a Static Resistant Vacuum Hose.
  • For smaller jobs or in tight quarters, the Mini Chip Vac System comes with a compact 5 gallon drum.  The Deluxe System adds a drum dolly for portability.

Heavy Duty Dry Vac Systems:

  • Function is similar to the Chip Vacs, but the vacuum itself is made of a hardened alloy, and offers higher vacuum power for dense and/or abrasive material cleanup.
  • Fits your existing 30, or 55 gallon drums for a quick & easy, basic high powered vacuum solution.
  • Deluxe Systems add Heavy Duty Tools & Tool Holder, and a Drum Dolly.
  • Premium Systems come with a 30, 55, or 110 Gallon Drum.

Heavy Duty HEPA Vac Systems:

  • All the power, durability, and convenience of the Heavy Duty Dry Vac Systems, but with a HEPA filter for contaminants such as mold, allergens, and other airborne irritants.
  • Fits your existing 30 or 55 gallon drums, or Deluxe & Premium Systems add the same accessories as the Heavy Duty Dry Vac Systems.
(Left to right) Chip Vac, Heavy Duty Dry Vac, Heavy Duty HEPA Vac

Reversible Drum Vac Systems:

  • These are our drum mounted vacuums for liquids.  They’ll fill or empty a 55 gallon drum in 90 seconds (tested with water.)
  • Fits an existing 30, 55, or 110 gallon closed top steel drum in good condition.
  • Deluxe Systems add a drum dolly, a Tool Holder and a set of plastic tools including a Spill Recovery Kit, for a multitude of cleanup needs.
  • Auto shutoff float prevents overfilling the drum.
  • Premium Systems add a 30, 55, or 110 gallon drum, Heavy Duty Aluminum Tools, and a compressed air supply hose.
  • High Lift Systems are available for higher viscosity (ups to 1400 cP) liquids, or when pumping from below grade (180″H2O suction lift.)
  • This same technology is incorporated into the Chip Trapper Systems, which (as detailed last week) trap incoming solids in a Filter Bag, allowing for instant pumping out of freshly filtered liquid.  They’re available with the High Lift capability as well.
Reversible Drum Vac, High Lift Reversible Drum Vac, Chip Trapper

Vac-u-Guns:

  • Handy and portable, the Vac-u-Gun is a lightweight handheld vacuum, blow gun, and transfer tool, all in one.
  • Collection System comes with a vacuum bag w/shoulder strap, extension wands, a crevice tool, skimmer tool, and round brush tool.
  • Transfer Systems come with the same tools, but include a 10ft hose instead of the vacuum bag.
  • All Purpose Systems come with the tools, the vacuum bag, and the 10ft hose.
  • Deep Hole Vac-u-Guns are fitted with a blow tube for stirring up fine debris from drilled holes, where it’s quickly and efficiently vacuumed away.

Regardless of your application, EXAIR has an Industrial Vacuum to fit.  Orders for qualifying systems through the end of May 2020 will include a free Vac-u-Gun.  If you’d like to discuss your Industrial Housekeeping needs, give me a call.

Russ Bowman
Application Engineer
EXAIR Corporation
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Controlling Compressed Air can be Easy, and Save Thousands of Dollars

The history of automated controls can be traced back to inventors in ancient Greece & Egypt, who sought ways to keep more accurate track of time than afforded by sundials and hourglasses.  Their efforts, dating as far back as 300BC, produced devices actuated by water flow, which is actually quite reliable and repeatable: a set amount of water will flow via gravity through a fixed conduit in the exact same amount of time, every time.  These were in fairly common use until the invention of the mechanical clock in the 14th century.

The Industrial Revolution grew the need for automated processes exponentially…the need to control objects or tooling in motion, fluid flow, temperature, and pressure, just to name a few.  As time passed, the sky was literally the limit: modern aircraft & spacecraft rely on a staggering amount of automated processes from production to operation.

All throughout history, though, the benefits of automation remain the same: making processes more efficient.  That’s where the EXAIR EFC Electronic Flow Control comes in, for automating processes involving compressed air use, by turning air flow off when it’s not needed.  In fact, not only do they provide simple on/off control to blow only when a part is “seen” by the photoelectric sensor, there are eight distinct modes to incorporate delay on or off, flicker on or off, signal on/off delay, interval, or “One-Shot,” where the sensor detects the part, delays opening the valve per the timer setting, and blows for one second.

EFC Electronic Flow Control Systems are already assembled & wired for quick & easy installation.

The EXAIR EFC Electronic Flow Control is a true “plug and play” solution for automating a compressed air application.  Mount the sensor, plumb the valve, plug it in, and you’re ready to go.  There’s no complicated PLC wiring or programming, although the aforementioned mode selections do offer a great deal of flexibility other than “on when the sensor sees it; off when it doesn’t” operation, if desired.  Here are some prime examples of that flexibility, and the monetary benefits due to the compressed air consumption savings:

(Left) On/Off Delay setting used in tank refurbishment application to operate a “halo” of Super Air Knives for blow off as tanks exit oven where old paint is burnt off – $3,393 annual air savings. (Center) Interval setting actuates a Super Ion Air Knife for flat panel display dust blow off/static elimination – $2,045 annual air savings. (Right) Interval setting actuates a “halo” of Super Ion Air Knives to clean & remove static charge from plastic automotive bumper covers prior to painting – $5012 annual savings.

If you’d like to find out more about the EFC Electronic Flow Control can save you time, air, and money, give me a call.

Russ Bowman
Application Engineer
EXAIR Corporation
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Why Start a Leak Prevention Program?

All compressed air systems will have some amount of leakage. It is a good idea to set up a Leak Prevention Program.  Keeping the leakage losses to a minimum will save on compressed air generation costs, and reduce compressor operation time which can extend its life and lower maintenance costs.

The Compressed Air Challenge estimates an individual compressed air leak can cost thousands of dollars per year when using $0.07/kWh.

  • 1/16″ diameter hole in excess of $700/year
  • 1/8″ hole in excess of $2900/year
  • 1/4″ hole in excess of $11,735 per year

There are generally two types of leak prevention programs:

  • Leak Tag type programs
  • Seek-and-Repair type programs

Of the two types, the easiest would be the Seek-and-Repair method.  It involves finding leaks and then repairing them immediately. For the Leak Tag method, a leak is identified, tagged, and then logged for repair at the next opportune time.

A successful Leak Prevention Program consists of several important components:

  • Document your Starting Compressed Air Use – knowing the initial compressed air usage will allow for comparison after the program has been followed for measured improvement.
  • Establishment of initial leak loss – See this blog for more details.
  • Determine the cost of air leaks – One of the most important components of the program. The cost of leaks can be used to track the savings as well as promote the importance of the program. Also a tool to obtain the needed resources to perform the program.
  • Find the leaks – Leaks can be found using many methods.  Most common is the use of an Ultrasonic Leak Detector, like the EXAIR Model 9061.  See this blog for more details. An inexpensive handheld meter will locate a leak and indicate the size of the leak.

    Model 9061
    Model 9061
  • Record the leaks – Note the location and type, its size, and estimated cost. Leak tags can be used, but a master leak list is best.  Under Seek-and-Repair type, leaks should still be noted in order to track the number and effectiveness of the program.
  • Plan to repairs leaks – Make this a priority and prioritize the leaks. Typically fix the biggest leaks first, unless operations prevent access to these leaks until a suitable time.
  • Record the repairs – By putting a cost with each leak and keeping track of the total savings, it is possible to provide proof of the program effectiveness and garner additional support for keeping the program going. Also, it is possible to find trends and recurring problems that will need a more permanent solution.
  • Compare and publish results – Comparing the original baseline to the current system results will provide a measure of the effectiveness of the program and the calculate a cost savings. The results are to be shared with management to validate the program and ensure the program will continue.
  • Repeat As Needed – If the results are not satisfactory, perform the process again. Also, new leaks can develop, so a periodic review should be performed to achieve and maintain maximum system efficiency.

An effective compressed air system leak prevention and repair program is critical in sustaining the efficiency, reliability, and cost effectiveness of an compressed air system.

If you have questions about a Leak Prevention Program or any of the 16 different EXAIR Intelligent Compressed Air® Product lines, feel free to contact EXAIR and myself or any of our Application Engineers can help you determine the best solution.

Jordan Shouse
Application Engineer
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Ion Air Jet Applications

While writing my blog last week on all of the features & benefits of the Gen4 Ion Air Jet, I couldn’t help but think of some of the very interesting and successful uses I’ve seen in my nine years (as of this past Monday) as an Application Engineer at EXAIR Corporation.  In honor of my workaversary, this week’s edition is Russ’ Top 9 Ion Air Jet applications:

  1. A medical device manufacturer uses Ion Air Jets to remove dust from plastic extrusion as it goes through a puller belt.  The small diameter (0.05″ to 0.10″) made the Ion Air Jet a more efficient fit than the Super Ion Air Wipe, which is commonly used for extrusions like this, but is most effective for larger diameters.
  2. A maker of large scale automated machinery has provided Ion Air Jets (as well as other EXAIR quiet, efficient, and safe compressed air products) on machines they’ve been selling their customers for years.  When they started machining their own plastic parts, the Ion Air Jet was their first thought for a solution when plastic chips started sticking to their drill bits.
  3. A commercial printer makes displays, signs, etc. from a variety of static-prone materials such as acrylic, polycarbonate, and styrene.  They use CNC routers to cut them to size & shape, form the edges, and add dimensional detail.  Ion Air Jets blow the dust & shavings away, and keep them away, greatly reducing the prep time between routing and assembly.
  4. A weather sealing/stripping manufacturer uses Ion Air Jets to remove statically charged dust from their rubber & foam product extrusions, allowing for increased line speeds and better cuts for the products they cut for specific seal packages for the residential & commercial door and automotive industries, among others.
  5. A major provider of electrical and electronic contactors uses Ion Air Jets to blow off contact strip as it rolls off large reels to remove protective film and static.
  6. A manufacturer of wire marking machinery installs Ion Air Jets on their machines that are used to print on products with especially static-prone jackets, to ensure clean and crisp markings
  7. A cable manufacturer that caters to the computer & electronic industries uses Ion Air Jets to remove static & dust as foil is applied to PVC coated wire.  This eliminates the static charge that was causing inconsistencies when the adhesive was heated to activate.
  8. A wholesale food equipment distributor uses Ion Air Jets to blow out bottles during the sterilization process, prior to filling.
  9. A maker of specialty polymers uses Ion Air Jets to keep fine powders from accumulating in the entries into their hoppers.

Some applications call for a fixed-in-place solution, like the (above, from left) Super Ion Air Knife, Super Ion Air Wipe, Ion Air Jet, and Ion Air Cannon.) Others are best suited to the hand-held convenience of the Ion Air Gun.  Whatever your static problem is, though, EXAIR has a solution for you!

If you have a problem with static, the Ion Air Jet is just one of the solutions EXAIR Corporation can provide.  If you’d like to find out more about how we can help, give me a call.

Russ Bowman
Application Engineer
EXAIR Corporation
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Rotary Scroll Compressors

Over the years, my EXAIR colleagues and I have blogged about different types of air compressor types including single and double acting reciprocating, rotary screw and sliding vane air compressors. You can click on the links above to check those out. Today, I will review the basics of the rotary scroll-type compressor.

The rotary scroll type compressor falls under the positive displacement-type, the same as the other types previously discussed.  A positive displacement type operates under the premise that a given quantity of air is taken in, trapped in a compression chamber and the physical space of the chamber is mechanically reduced.  When a given amount of air occupies a smaller volume, the pressure of the air increases.

Positive displacement type compressors

Each of the previous positive displacement type compressors use a different mechanism for the reduction in size of the compression chamber. The rotary scroll uses two inter-meshing scrolls, that are spiral in shape. One of the scrolls is fixed, and does not move (red).  The other scroll (black) has an “orbit” type of motion, relative to the fixed scroll. Air would be drawn in from the left, and as it flows clockwise through the scroll, the area is reduced until the air is discharged at a high pressure at the center.

How it Works

There is no metal to metal sliding contact, so lubrication is not needed.  A drawback to an oil free operation is that oil lubrication tends to reduce the heat of compression and without it, the efficiency of scroll compressors is less than that of lubricated types.

The advantages of the rotary scroll type compressor include:

  • Comes as a complete package
  • Comparatively efficient operation
  • Can be lubricant-free
  • Quiet operation
  • Air cooled

The main disadvantage:

  • A limited range of capacities is available, with low output flows

EXAIR recommends consulting with a reputable air compressor dealer in your area, to fully review all of the parameters associated with the selection and installation of a compressed air system.

If you would like to talk about compressed air or any of the EXAIR Intelligent Compressed Air® Products, feel free to contact EXAIR and myself or one of our Application Engineers can help you determine the best solution.

Jordan Shouse
Application Engineer

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Rotary Scroll GIF:  used from  Public Domain
Images Courtesy of  Compressor1 Creative Commons.

 

Static Eliminators: Ion Air Jet

Static charge causes a variety of problems & challenges in industrial applications:

  • It “zaps” operators who have to handle statically charged materials.
  • It makes sheets and films cling to each other.
  • It can cause tearing or jamming of those sheets and films as well.
  • Objects with high static charges can cause sensors or sensitive electronics to malfunction, and it the charge is high enough, even damage them.
  • It makes dust cling to parts and material that you want to keep clean.
  • It can lead to uneven or spotty coverage if the statically charged piece is to be painted, coated, printed on, etc.

Good news is, static charge is pretty easy to dissipate, and EXAIR Corporation offers a number of solutions that are simple to install and easy to operate.  Among them is the Gen4 Ion Air Jet.

The Gen4 Ion Air Jet generates a concentrated flow of ionized air, which is ideal when you need to focus on a specific spot without disturbing anything in the surrounding area.  They’re quiet, efficient, and OSHA compliant.  They are also available with a number of options to further simply installation & operation:

If you can hard plumb an air pipe directly, the Gen4 Ion Air Jet is ready to go, right out of the box.

Ion Air Jet

The Gen4 Stay Set Ion Air Jet includes a Magnetic Base and 12″ Stay Set Hose, for quick setup and easy aiming of the ionized air flow, exactly where you want it.

The Magnetic Base and Stay Set Hose make it a breeze to mount & aim your Ion Air Jet.

The Gen4 Instant Static Elimination Station adds a foot pedal and two 10ft compressed air hoses, perfect for hands-free on/off operation.

For a total hands-free solution, look no further than the Model 8910 Instant Static Elimination Station.

The Gen4 Deluxe Stay Set Ion Air Jet Kit adds an Automatic Drain Filter Separator and Pressure Regulator so you can keep your air supply clean & moisture free, and dial in the flow & force of the ionized air stream, from a breeze to a blast, or anywhere in between, depending on the needs of your application.

The Model 8495-9362 Deluxe Stay Set Ion Air Jet Kit has everything you need, right out of the box.

We offer two Power Supply options: the Model 7960 has two ports, which will operate any two EXAIR Static Eliminator Products, and the Model 7961 has four ports, to operate up to four Static Eliminators.  They’re switchable for operation with either 115VAC or 230VAC, and come with both cables for your convenience.

Model 7960 Gen4 Power Supply (top) has two ports; Model 7961 (bottom) has four, depending on how many Static Eliminators you wish to operate from the same Power Supply

The Gen4 Ion Air Jet is just one of EXAIR Corporation’s eight distinct lines of Static Eliminator Products.  If you’ve got a problem with static charge, we can help.  Give me a call.

Russ Bowman
Application Engineer
EXAIR Corporation
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