Super Air Knives Provide Dry Surface for Printing

I’ve always liked Halloween.  My friends and I got to go trick-or-treating together around the neighborhood, under the supervision of a parent or two, until one year when we were deemed old enough to go around the immediate neighborhood (gasp) by OURSELVES!!!

You need to know that, for any of our Moms, that was a HUGE investment in trust they were putting in us. One that, I’m afraid was undeserved. See, we’d all heard rumors of “tricks” from some cool older kids, and were eager to try our hands at it. Now, we were a relatively mild mannered bunch. We certainly weren’t going to break anything or hurt anyone. But the tales of soaping windows had an irresistible appeal…so, after we donned our costumes that evening, we all sneaked a bar of hand soap out of the house, and set about on our great adventure. Which was not so great, for a couple of reasons:

First, Halloween that year fell on a particularly drizzly night.  We weren’t in danger of a rain-out, but there was a layer of “wet” on everything…especially the windows on which we planned to display our art. That didn’t stop us from trying, though…it just wasn’t near as effective, or fun, as we’d hoped.  Basically, we got some weak smudges here and there.

Second, our parents & neighbors were a lot more savvy than we’d expected. I’m not even sure what happened first…the discovery of the missing bars of soap, or the neighbors calling our parents to tell them what we were up to. We were all punished according to our respective families’ customs, and the next year, we were the oldest trick-or-treaters out there under adult supervision.

I think about that night whenever I see one of those “World’s Dumbest Criminals” shows, but it popped into my head recently while discussing a Super Air Knife application with a customer.  The caller worked in facility that produced pizza dough, and had recently implemented a quality tracking system that applied a temporary code to the rims of the plastic trays that carried the loaves of dough along a conveyor.   Thing is, the trays could still be wet from the wash/rinse cycle, and the ink (which is water soluble and is supposed to be removed by the washer anyway) really, really needs a pretty dry surface, or it’s just going to be a weak, smudgy mess, much like the great Window Soap Fail of 1970-something.

They purchased two Model 110003SS 3″ Stainless Steel Super Air Knives and installed one on each side of the conveyor, just after the rinse tunnel.  The Super Air Knives blow off the rims of the trays, leaving a clean, dry surface for the printer.

EXAIR Super Air Knives come in a wide variety of lengths to suit a wide range of applications.

EXAIR Super Air Knives come in a variety of materials, lengths from 3 inches to 9 feet, and are the quietest & most efficient compressed air operated blow off products on the market today.  If you’d like to find out more about they can help you, give me a call.

Russ Bowman
Application Engineer
EXAIR Corporation
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Better Understand Your Blowoff Process with EXAIR’s FREE Efficiency Lab

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The EXAIR Efficiency Lab

Many customers may not have the means to test the air consumption of their blowoff solutions. With compressed air being the most expensive utility in a manufacturing facility, it’s important to identify places where you can save money on your overall operating costs. EXAIR manufacturers a wide variety of products intended to help you reduce your compressed air usage. If you’re not able to accurately measure the consumption in your own shop, we invite you to send the products into EXAIR for testing. With EXAIR’s Award Winning Efficiency Lab, just simply contact an Application Engineer, box them up and send them to our warehouse in Cincinnati, Ohio.

EXAIR Efficiency Lab

Once we receive it, our engineers will complete some in-depth testing to determine the compressed air consumption, sound level, and force that your current solution provides. With this information, we’ll be able to compare it to an EXAIR Engineered Solution. This way we ensure that you receive the best, safest solution possible also capable of saving money through reduced air consumption and improved efficiency.  We’ll send you back a comprehensive report that’ll help you to make the best decision for your company.

I’ve been recently working with a customer that sent in one of the nozzles they’re using across all their CNC machines. They wanted us to test it out and see if we’re able to offer them something that could reduce their overall compressed air usage. The nozzle was one of the cheap plastic varieties and was attached to a commonly used modular hose. This type of modular hose is not designed for operating under high pressures. These hoses are more suitable for liquid coolant or air that is at or below atmospheric pressure.

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Inefficient and unsafe plastic nozzle

After testing, we found that at 80 psig the nozzle consumed 3.85 SCFM and produced a force of 1.92 oz. We also noticed that after 60 psig, the nozzle began to leak due to a poor seal where the nozzle met the brass hex. The EXAIR nozzle most suitable to replace this was the 1108SS. At just 2.5 SCFM at 80 psig, replacing the plastic nozzle with an engineered solution saves them 35% of their overall consumption for this blowoff. With close to 1000 of these nozzles in operation, that adds up quickly!!

In addition to increasing efficiency, replacing these nozzles also greatly increases overall worker safety. The sound level is reduced from 73 dBA to just 58 dBA and EXAIR’s nozzles also adhere to OSHA 1910.242(b). The plastic nozzles could be dead-ended, posing a hazard that can result in costly fines. These fines are assessed per infraction, so having multiple non-compliant nozzles can easily get very expensive if you’re subject to an unannounced visit by an OSHA inspector.

If you think you may have an opportunity to improve upon your existing blowoff methods, give us a call. We’ll be happy to take a closer look and have you send the product back to EXAIR for a quick trial in our Efficiency Lab. You’ll be glad you did!

Tyler Daniel
Application Engineer
E-mal: TylerDaniel@exair.com
Twitter: @EXAIR_TD

Cabinet Cooler NEMA Ratings Explained

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Temperatures are heating up across the US, when this happens it can wreak havoc on the sensitive electronics in your facility.  If you’re a follower of the EXAIR Blog, you’ve noticed that we’ve spent a great deal of time recently discussing the Cabinet Coolers. From a description of how they work, specific applications, as well as how to determine what size you’ll need, we’ve covered quite a range of topics. Equally important, though, is the NEMA rating of the Cabinet Cooler. I’d like to take a moment to discuss the different NEMA ratings for the Cabinet Coolers that EXAIR has to offer and where each should fit.

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EXAIR’s Model 4008 Nema 12 Cabinet Cooler

NEMA 12 – The NEMA 12 rating is for enclosures that are indoor and provide a degree of protection to personnel against access to hazardous parts as well as prevent any materials from entering the enclosure such as dust, debris, or moisture from light splashing. This standard duty style of Cabinet Cooler is best served indoors on the shop floor where there aren’t any wash-down areas or excessive moisture.

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Model 4880-ETC120

NEMA 4 – A NEMA 4 rated cabinet cooler is designed for either indoor or outdoor use. It, too, provides protection to personnel against access to hazardous parts and prevents dust, dirt, or debris from entering the cabinet. In addition to providing the same levels of protection as the NEMA 12, the NEMA 4 rating also means that the equipment will be protected from water such as rain, sleet, snow, splashing water, and even hose directed water.

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Model 4880SS-316

NEMA 4X – The NEMA 4X carries the same levels of protection as the NEMA 4, but also adds an additional level of protection against corrosion. EXAIR’s NEMA 4X Cabinet Coolers are constructed of either 303 or 316 Stainless Steel.

EXAIR’s Cabinet Coolers are available from stock with cooling capacities ranging from 550 Btu/hr – 5,600 Btu/hr. With a variety of different materials and NEMA ratings, EXAIR has the right Cabinet Cooler ready to ship today to prevent your sensitive electronics from shutting down. Don’t let yourself get frustrated dealing with heat-related issues, get a maintenance-free Cabinet Cooler installed ASAP! Fill out the Cabinet Cooling Sizing Guide and an Application Engineer will be in touch with you within 24 hours with a quote for the most suitable model.

Tyler Daniel
Application Engineer
E-mail: TylerDaniel@EXAIR.com
Twitter: @EXAIR_TD