EXAIR offers 5 different styles of Safety Air Guns with a large variety of Safety Air Nozzles; VariBlast Precision, VariBlast Compact, Soft Grip, Heavy Duty and Super Blast. They range from small precise blowing up to large surface cleaning. First, the EXAIR Safety Air Guns are designed to meet OSHA standards for dead-end pressure and noise level. Second, the engineered nozzles improve efficiency of compressed air use; saving you money. In this blog, I will cover our largest air guns; the Super Blast Safety Air Guns.
The Super Blast Safety Air Guns are ideal for wide area blow-offs and far distances. They feature a comfortable foam grip and an auto shut-off trigger. The trigger valve has a spring that will turn off the airflow if the gun is dropped, to prevent backlash or the hose flailing around dangerously. Aluminum extensions are available in 36″ (0.9 meters) or 72″ (1.83 meters) lengths for hard-to-reach areas. These units use our larger Super Air Nozzles and Super Air Nozzle Clusters, providing forces levels from 3.2 lbs. (1.45 Kg) up to 23 lbs. (10.43 Kg). Depending on which nozzle is fitted on the assembly, air inlets can range from 3/8 FNPT up to 1-1/4 FNPT.
EXAIR offers two styles of nozzles in the Super Blast family; a Super Air Nozzle Cluster and a single Super Air Nozzle. Both are designed to entrain ambient air at a ratio near 25:1. That means for every 1 part of compressed air, the nozzle will bring in 25 parts of free ambient air. This will reduce the amount of compressed air required. The ambient air will add mass to give it a hard-hitting force. The Super Air Nozzle Cluster has an aluminum body with multiple Zinc-Aluminum Safety Air Nozzles nested. We offer a cluster with 4 nozzles, 7 nozzles, and 12 nozzles. The air pattern is wide to help remove debris quickly. The air blow guns with a single Super Air Nozzle are great for a more focused force at longer distances. EXAIR offers five different nozzle sizes to create the largest force within our Safety Air Guns at 23 lbs. (10.43Kg) at 80 PSIG (5.5 bar). Some applications would include cleaning large CNC tables, dump trucks, walls, ceilings, and sheets of materials.
For U.S. and Canadian customers, EXAIR will be giving away a 1” Flat Super Air Nozzle with a purchase of a VariBlast Precision, VariBlast Compact, Soft Grip, Heavy Duty, and Super Blast Safety Air Gun. EXAIR will send a model 1126 nozzle, a $50.00 complimentary gift, with a qualified purchase online until September 30th, 2021. EXAIR also offers a 30-day unconditional guarantee on our cataloged items to try. You can see for yourself on how effective these compressed air guns can be. If you need help to match the best Safety Air Gun to your application, an Application Engineer will be happy to assist you.
The Soft Grip Safety Air Gun is a blow gun which is in stock for immediate shipping and has a durable cast aluminum body that is suited for rugged industrial use. The ergonomic design has a large trigger and a soft, comfortable grip for easy operation and keeps the hand in a comfortable position for extended periods of use. A convenient hook hanger allows for easy storage when not in use. Aluminum Extensions (up to 72″ long) and Stay Set Hoses (up to 36″ long ) can be fitted, providing access to hard-to-reach places. Chip Shields are available for most models, protecting operators from flying debris, helping to meet an important part of OSHA’s requirements for the safe use of compressed air, OSHA Standard 1910.242(b).
The Soft Grip Safety Air Gun can be configured with dozens of nozzle options, air consumption as low as 2.5 SCFM @ 80 PSIG of supply pressure and up to 60 SCFM if needed. Nozzle materials include Zinc Aluminum alloy, Stainless Steel, and PEEK thermoplastic as well as forward blowing or back blow nozzle options.
Using any of EXAIR’s Safety Air Guns with an Engineered Air Nozzle will provide safe and efficient use of compressed air, reduce energy costs, and eliminate harmful dead-end pressures (again, helping to comply with the OSHA standard for safe use of compressed air) when compared to standard commercial air blow guns, open pipes, and other homemade attempts to use compressed air efficiently and effectively.
When outfitted with EXAIR’s engineered air nozzles, the Soft Grip Safety Air Gun is a powerful ally to reduce personnel noise exposure and protect them from noise-induced hearing loss. This is another important safety feature complying with OSHA’s standard 29 CFR-1910.95(a). Lowering the ambient noise level also helps to improve operator satisfaction of their working environment.
The Soft Grip Safety Air Gun can be configured to meet applications from delicate blowoff of electronic circuit boards to large chip removal in metal cutting operations, and everything in between.
If you have questions regarding the Soft Grip Safety Air Gun or would like to talk about any EXAIR Intelligent Compressed Air® Product, feel free to contact an Application Engineer who can help you determine the best solution.
EXAIR’s Heavy Duty Safety Air Gun is designed to provide powerful blasts of compressed air for use in rugged, industrial environments. With a larger 3/8 NPT air inlet compared to our other Safety Air Guns, it allows for higher force and flow values. It comes with a durable cast aluminum body and ergonomic composite rubber grip. The wide curved trigger allows for continuous use for hours without operator’s experiencing fatigue.
All of EXAIR’s Safety Air Guns come with an engineered compressed air nozzle at the tip. This allows you to remain OSHA compliant while still getting the force you need to get the job done. EXAIR’s Super Air Nozzles utilize the coanda effect to entrain large amounts of ambient air from the environment. This ambient air mixes with the primary airstream and is projected towards the target with more force and flow than the supplied compressed air could deliver alone.
Each of the Safety Air Guns is available with extensions fully assembled ranging from 6”-72”. You can simply add a “-“ and the required length, in inches, to the end of any Safety Air Gun Model number.
In addition, they’re also available with a Chip Shield to prevent any chips or debris from coming back into the faces of your operators. Effective chip guarding is another component of OSHA 1910.242(b) in addition to the concerns of dead-end pressure. To add a Chip Shield onto the gun as well, a “-CS” to the standard Model number. For example, a Model 1310-12-CS would be a 1310 gun with 12” extension and a Chip Shield installed. If the application involves blowing off metal chips or shavings, your operators will certainly appreciate this Chip Shield preventing the debris from blowing back all over them.
With EXAIR’s Heavy Duty Safety Air Gun, you can still achieve the high forces required for tough applications without the risk of injuries to personnel. It’ll also keep you safe from any fines associated with an unannounced OSHA visit. Do yourselves and your operators a favor and get one on order today!
If you look at operating costs alone, compressed air can be just about the most inefficient method there is for cleaning parts. If you just look at the risks, it’s potentially very dangerous too. Don’t even get me started on the insufferable noise it can make.
For cleaning parts, most folks are familiar with the use of an air gun. You can find the simplest of these in many industrial settings: a valve (often in the form of a handheld trigger device) fitted with a nozzle of some sort (often in the form of an open ended tube, pipe, or fitting to focus or direct the air flow). These have all three of the “downsides” I opened this blog with. Of course, these concerns can be mitigated to a high degree by using the right tool for the job. That’s where engineered products like EXAIR Safety Air Guns come in. Let’s look at how we can address these three “downsides”:
Efficiency: This is all about compressed air consumption. In the simplest of air guns mentioned above, consumption is only limited by the passages in the valve (or trigger) and the discharge fitting…and those limits are usually negligible. Modifying the ends (see examples below) to focus the air flow usually has minimal effect, because you’re not appreciably changing the total cross sectional area of the discharge opening:
Safety: Remember learning about kinetic and potential energy in grade school? Well, when you compress air to 100psig, fitting all that air into a much smaller space creates a TREMENDOUS amount of potential energy:
One problem with the thumb guns above is, if you were to jam into the palm of your hand and pull the trigger, a large component of that potential energy (pressure) turns into kinetic energy (force)…more than enough to break the skin and cause a potentially fatal condition known as an air embolism. In the United States, OSHA (Occupational Safety and Health Administration) regulates compressed air devices used for cleaning purposes. All EXAIR Safety Air Guns comply with Standard 1910.242(b) by providing a relief path to ensure that it cannot be dead ended, and thus never create over 30psi measurable at the outlet)
Noise: Another problem is, another component is turned into sound pressure…discharging air from a direct opening is quite loud. OSHA standards address these with limitations on outlet pressure and sound level. All EXAIR Safety Air Guns comply with Standard 1910.242(b), which limits the outlet pressure (by providing a relief path to ensure that it cannot be dead ended, and thus never create over 30psi measurable at the outlet) and all but our largest Super Blast Safety Air Guns comply with Standard 1910.95(a) limits for continuous 8 hour sound level exposure.
Which brings us to the topic of this blog: How exactly did THEY (our customer who used to use the thumb guns above) select the right Safety Air Gun, and how can we apply that to getting the right Safety Air Gun for YOU?
These steps aren’t all-inclusive, and they don’t necessarily need to be followed in order, but if you call an EXAIR Application Engineer about selecting a Safety Air Gun, here’s what we’re gonna talk about:
Airflow pattern: Honestly, I could make a good case for this being the first consideration. Selection of any blowoff product – be it an Air Nozzle, Air Amplifier, Air Knife, Air Wipe, etc., will largely depend on the size and shape of the airflow.
For the most precise, focused blowoff, our Atto Super Air Nozzle (top left) is a great choice. It’s available on:
When stubborn, heavy, and/or LOTS of debris needs to be absolutely, positively blown off RIGHT NOW, our High Force Super Air Nozzles may be just what you need. Our largest; Model 1120 1-1/4 NPT Super Air Nozzle, is shown (above right). The High Force Super Air Nozzles are offered on:
Soft Grip or Heavy Duty Safety Air Gun (up to 3.3 pounds of force over a 6.3″ wide area @12″ away)
Application specific concerns: Everything we’ve discussed so far has involved aiming the blow off stream away from the operator, in the direction the device is aimed. In addition to wide variety of engineered Air Nozzles, EXAIR offers a number of options for these products:
If you’re looking for a portable, hand-held compressed air blow off product that’s quiet, safe, and efficient, look no further than EXAIR Corporation’s extensive line of Safety Air Guns. If you’d like to find out more, give me a call.
Russ Bowman, CCASS
Application Engineer EXAIR Corporation Visit us on the Web Follow me on Twitter Like us on Facebook