Super Air Wipe at Sea

I recently worked with a Chief Engineer on a large shipping boat who was having issues with water being brought in by the mooring cables. That salt water was getting into the maintenance room where the mooring cables were wound around a large spool. He wanted to remove the water from the cable before it went below deck so the extra water could just run off the deck back into the ocean.

After talking a bit we decided on a 4″ Super Air Wipe constructed of 303 stainless steel. This way the extra water would be removed and any debris the cable pulled in with it.

Mooring Cable going thru a EXAIR Super AirWipe

The Super Air Wipes provide a full 360° conical airflow that is used to blow-off, cool, clean and dry products. A Coanda profile is designed into the body of the unit to maximize entrainment of ambient air as well as give the precision angle for the air to exit from. This gives the air stream impacting the target zone a 30° angle to the surface in order to provide a substantial shear force for debris removal. This also ensures the large volume of ambient air entrained will all travel the correct direction and not become turbulent before impinging on the surface.

To meet all the tasks at hand, the Super Air Wipes are offered in two main materials of construction. Aluminum body with brass air fittings, connected with stainless steel hardware, shim and connecting hose for up to 4” (102mm). As well as 303 stainless steel body with stainless steel bolts, shim, the connecting hose for up to 4” (102mm) and fittings. The stainless-steel components give the units better corrosion resistance, higher temperature ratings, and more durability in harsh industrial environments.

The aluminum Super Air Wipe is available in 11 sizes; the stainless steel Super Air Wipe comes in 5 sizes…all from stock.

EXAIR stocks the aluminum Super Air Wipes with inner diameters from 3/8” (10 mm) for wire and cables up to 11” (279mm) for large pipes and hoses. The aluminum models have a temperature rating up to 400oF (204oC). We also stock the stainless-steel models from ½” (13mm) to 4” (102mm) inner diameters, and they have a temperature range up to 800oF (427oC). If you require different diameters or materials, we can do that as well easily.

With the creation of the Super Air Wipe, uniform cleaning, cooling, and blowing around the outside of parts is a simple task. You don’t have to worry about a variety of nozzles to target the circumference or a fabricated blow-off device that will waste air and take much time out of your day. A simple purchase of the Super Air Wipe Kit will solve the problem and keep production going. If you need help in selecting the proper size or want to know what material we would recommend for your application, contact us.

Jordan Shouse
Application Engineer

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Product Discovery: Super Air Wipes

Airflow through the Super Air Wipe

The Super Air Wipes provide a full 360° conical airflow that is used to blow-off, cool, clean and dry products. A Coanda profile is designed into the body of the unit to maximize entrainment of ambient air as well as give the precision angle for the air to exit from. This gives the air stream impacting the target zone a 30° angle to the surface in order to provide a substantial shear force for debris removal. This also ensures the large volume of ambient air entrained will all travel the correct direction and not become turbulent before impinging on the surface.

Easy clam-shell installation

To provide ease of installation, a unique clam-shell design was engineered to provide clamp over installation rather than traditional threading methods. This also permits quick changes in size when needed in the rapid product change environments.

Super Air Wipe Family Photo

To meet all the tasks at hand, the Super Air Wipes are offered in two main materials of construction. Aluminum body with brass air fittings, connected with stainless steel hardware, shim and connecting hose for up to 4” (102mm). As well as 303 stainless steel body with stainless steel bolts, shim, the connecting hose for up to 4” (102mm) and fittings. The stainless-steel components give the units better corrosion resistance, higher temperature ratings, and more durability in harsh industrial environments.

EXAIR stocks the aluminum Super Air Wipes with inner diameters from 3/8” (10 mm) for wire and cables up to 11” (279mm) for large pipes and hoses. The aluminum models have a temperature rating up to 400oF (204oC). We also stock the stainless-steel models from ½” (13mm) to 4” (102mm) inner diameters, and they have a temperature range up to 800oF (427oC). If you require different diameters or materials, we can do that as well easily.

Super Air Wipe Kit

The Super Air Wipe kits to help get the most out of the air wipes. A kit will include the Super Air Wipe, a filter, regulator and shim set. The filter will remove bulk liquids and debris from the compressed air to keep the performance optimal. The regulator is used to fine-tune the force provided by the Super Air Wipe. This helps to not over-use the amount of compressed air required for the job.

With a regulator, you can make fine adjustments to get the proper amount of air. For coarse adjustments, you can add shims to increase the airflow and force. They are easy to install on the Super Air Wipes to allow for applications to have more cooling, faster drying, and better removal for tough debris. For cleanliness and control, the Super Air Wipe Kits would be recommended for your application.

Robotic Welder fitted with EXAIR Super Air Wipe

With the creation of the Super Air Wipe, uniform cleaning, cooling, and blowing around the outside of parts is a simple task. You don’t have to worry about a variety of nozzles to target the circumference or a fabricated blow-off device that will waste air and take much time out of your day. A simple purchase of the Super Air Wipe Kit will solve the problem and keep production going. If you need help in selecting the proper size or want to know what material we would recommend for your application, contact us.

Brian Farno
Application Engineer
BrianFarno@EXAIR.com
@EXAIR_BF

EXAIR Air Nozzles And Jets: Quiet, Efficient, and Safe Solutions For Blow Off

Compressed air, as a utility, dates back to ancient Egypt, where metal alloy production was enhanced by using bellows devices to force air into furnaces in order to generate the extremely high temperatures needed to meld iron ores.  Major industrial use began in the mid-19th century, as pneumatic drills became popular for tunneling and mining operations.  With the development and large scale production of the modern air compressor in the 20th century, many other uses for compressed air were discovered.

Among the most prevalent of these additional applications is cleaning & blow off.  Mechanical or chemical methods such as washing, scrubbing, brushing, wiping, etc. often take time and considerable effort, when a quick blast of high velocity air from a pressurized source can make quick work of debris and/or moisture removal.  Thing is, unfettered discharge of high pressure air without concern for safety or efficiency has consequences:

  • Open end blow offs without a relief path for the air in case the device is dead ended, can have enough energy to break the skin, causing a dangerous and potentially fatal condition known as an air embolism.  The Occupational Safety and Health Administration (OSHA) specifically addresses this danger in 29 CFR 1910.242(b).
  • They’re also incredibly loud, usually higher than 100 decibels, which exceeds OSHA’s noise exposure limits per 29 CFR 1910.95(a).
  • As if that wasn’t enough, they can waste an awful lot of compressed air too.  The U.S. Department of Energy even goes so far as to classify it as an Inappropriate Use of Compressed Air.

Given these drawbacks, you might wonder why ANYONE would do such a thing!  Well, that’s the nature of our business at EXAIR Corporation: manufacturing quiet, safe, and efficient compressed air products for industry.  Among these are the first engineered products developed by EXAIR:  Air Nozzles and Jets.  No matter what your blow off needs are, we’ve got a solution.  Consider:

  • Performance.  With 73 distinct models to choose from, EXAIR can provide blow off solutions from the pin-pointed precision of our Atto Super Air Nozzle (uses 2.5 SCFM, generates 2 oz of force) to our High Force 1-1/4 NPT Super Air Nozzle (uses 460 SCFM, generates 23 lbs of force.)

    From the Atto Super Air Nozzle’s 2.5 oz pinpoint focus of air flow to the Model 1121’s 23 pounds of force blast, EXAIR has 73 distinct models to choose from.
  • Durability.  Some environments where blow off is required are downright aggressive: high heat, exposure to corrosive chemicals, etc.  With these situations in mind, we offer Air Nozzles & Jets in a variety of materials of construction, as shown to the right:
    • Zinc Aluminum alloy
    • Types 303 and 316 Stainless Steel
    • PEEK (polyether ether ketone) thermoplastic
    • Aluminum
    • Brass
  • Range of operation.  Any blow off device’s performance can be varied by regulating the compressed air supply pressure.  EXAIR offers several products with even greater ability for change:
    • The Model 1009 (Aluminum) and 1009SS (303SS) Adjustable Air Nozzles have a micrometer-like dial that allows you to very precisely set the flow & force to exact requirements.
    • Adjustable Air Jet Models 6019 (brass) and 6019SS (303SS) feature similar operation with a micrometer-like gap adjuster/indicator.
    • Our 1″ and 2″ Flat Super Air Nozzles (available in Zinc Aluminum or 316SS) have a replaceable shim.  The standard models have a 0.015″ thick shim installed, and the High Power models have 0.025″ thick shims.  We also offer individual shims, and sets, ranging from 0.005″ to 0.030″ thicknesses.
    • High Velocity Air Jets come in brass or 303SS, and also have replaceable shims.  The one that comes installed is 0.015″ thick.  The Shim Set gives you a 0.006″ and 0.009″ shim.

      Adjustable Air Nozzles & Jets (left) feature micrometer-type adjustment; Flat Super Air Nozzles and the High Velocity Air Jet (right) have replaceable shims to vary performance.
  • Function. Most of our Air Nozzles generate a high velocity air stream coming straight from its end.  We’ve also engineered some nozzles for specific applications:
    • Model 1144 2″ Super Air Scraper is our popular 2″ Flat Super Air Nozzle with a corrosion resistant scraper blade, making quick work of removing stubborn materials like tape, gaskets, labels, grease, paint, or sealant.  It’s particularly handy when installed on a Soft Grip Safety Air Gun with an appropriate length of pipe extension.
    • Back Blow Air Nozzles are made to clean out inside diameters or blind holes.  Three sizes are available for ID’s of 1/4″ to 16″.

If you’d like to find out more about how EXAIR Intelligent Compressed Air Products can help you get the most out of your compressed air system, give me a call.

Russ Bowman
Application Engineer
EXAIR Corporation
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Chip Shields, OSHA, And You

Safety is a key part of our culture at EXAIR Corporation.  We have regularly scheduled, all-hands required, safety training on a number of topics.  Our Order Entry team can likely tell you as much about our lockout/tagout procedures as our Machinists can.  Nobody even thinks about entering The Shop without safety glasses, and it’s not just because of the signs.

We pay attention to these…

…so we don’t ever have to use this.

OSHA 1910.242(b) states that “Compressed air shall not be used for cleaning purposes except where reduced to less than 30 p.s.i. and then only with effective chip guarding and personal protective equipment. (emphasis mine)  All EXAIR Intelligent Compressed Air Products are engineered to meet the requirements of the first part (30psi outlet pressure to prevent dead ending…we’ve written about that numerous times, including here, here, and here) and we can also provide pre-installed devices to satisfy the second part:  the EXAIR Chip Shield.

Any EXAIR VariBlast or Heavy Duty Safety Air Gun can come fitted with a Chip Shield, and any Soft Grip Safety Air Gun, except for those with Stay Set Hoses, can as well.  Safety Air Guns with Back Blow Nozzles automatically come with a Chip Shield. The principle is simple: a clear polycarbonate (so you can still see what you’re doing) round disc slips over a short (or long if you want) pipe extension between the gun & the nozzle.  It’s fitted with a rubber grommet so you can position it to where it’s most effective – sometimes that might be closer to the part being blown off; sometimes it may be back a little closer to the operator.

EXAIR Safety Air Guns are available, from stock, with Chip Shields.

If you already have an air gun that’s doing the job, you can easily add an EXAIR Chip Shield to it.  They’re made to fit a wide range of extension diameters, and can even come with the extension if you need it.  We also stock a number of adapter fittings; if you know what threads your air gun has (or if you can send us some photos) we can quickly & easily spec those out for you.

Convenient and inexpensive “thumb guns” with cross drilled nozzles (left) are compliant with the first part of OSHA 1910.242(b). Fitting one with an EXAIR Chip Shield (center) makes it compliant with the second part. A Model 1102 Mini Super Air Nozzle (right) makes it quiet & efficient.

We can provide a Chip Shield for most any device with a threaded fitting. I couldn’t find a way to re-use the non-OSHA-compliant nozzle that came with this gun (thank goodness.)

Another example of a larger air gun fitted with a more powerful cross drill nozzle (left) that can be made totally OSHA compliant with an EXAIR Chip Shield (center.) An EXAIR High Force Super Air Nozzle (right) keeps the power, while reducing noise level and compressed air consumption (right.)

Since 1983, EXAIR Corporation has been manufacturing quiet, safe, and efficient compressed air products for industry (emphasis mine.)  If you have concerns or questions about safety in regard to your compressed air use, call me.

Russ Bowman
Application Engineer
EXAIR Corporation
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