The HEPA Filter Protector

With our Heavy Duty HEPA Vac, it is very capable of capturing particles that are very small. You do not have to worry about re-entraining the dirt that you vacuumed back into the air. The filtration efficiency of the HEPA filter is 99.97% at 0.3 micron. Because it is so efficient, we place a prefilter on the outside of the element. This helps to capture the larger particles so that they do not prematurely plug the HEPA media. In extreme conditions with large amounts of debris, we do have another option. It is the model 901373 filter protector. It is a bag that will go on the outside of the prefilter and the HEPA filter. With a large influx of contamination, the filter protector will create a matrix from the contamination to create a cake. This cake, as it builds, will start to capture smaller particles and become more efficient. It is similar to a natural dam after a big rain. The large boulders and logs collect into a section, and then the smaller rocks and branches will collect behind it.

HEPA filter after 1 week

HEPA filter after 1 week

Under normal conditions, the standard HEPA filter with prefilter will last you for a while before replacing. It is dependent on the amount of dirt that is being collected. But, in those extreme conditions, you do not want to change the HEPA filter every week. This would be too expensive. That is why EXAIR found a cost-effective option to help, the filter protector. The model 901373 filter protector can be changed in a matter of minutes and the cost is less than 2% of the HEPA filter. Just like disposable shoe covers, they are inexpensive and they protect your expensive shoes. If you require any more information on our Heavy Duty HEPA Vac or the accessories, you can contact one of our helpful Application Engineers at EXAIR.

 

 

John Ball
Application Engineer
Email: johnball@exair.com
Twitter: @EXAIR_jb

 

 

Guess What Today Is?

Well, if everything went as planned, this blog is actually being posted on Friday. However, I’m writing it on Wednesday.

Don't even think about saying it.

Don’t even think about saying it.

Our daily blogs are written a couple of days in advance, so that they can be reviewed. None of us ever draft anything that’s inappropriate. Not REALLY inappropriate, anyway…but they are indeed checked for grammar, content, accuracy, and quality. I’m probably the most conceited about my writing ability (and for good reason…see?) but I’m still humble enough to appreciate any suggestions for improvement. Heck, if they make it look better before anyone else sees it, I get to take credit for that, too. It’s not like you readers know what gets changed.  If you want to know what I’m like sans edit review, you can always follow me on Twitter.

If our system of blog review and posting proves anything, it’s that it never hurts to run your plan by someone else with experience in what you’re trying to do. Case in point:

I had the pleasure of discussing an Industrial Vacuum application with a customer recently. One of our Chip Vacs had been in use within their shop for a long time, and they were quite pleased with its durability and longevity. They had begun working with some hardened steel product a while back, and, over time, those chips & shavings had worn through the Chip Vac’s aluminum body.  They wanted to order a replacement Chip Vac unit, and perhaps keep another in stock for when that one wore out, and were simply calling for price and availability.

Our solution, instead, was to provide a Heavy Duty Dry Vac. They didn’t need the complete system; just the Model 6097 Heavy Duty Dry Vac unit itself, since it’s dimensionally identical to the Chip Vac. They just unscrewed the Chip Vac on the drum lid, and threaded in the Heavy Duty Dry Vac.

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The EXAIR Chip Vac and Heavy Duty Dry Vac Systems.

It’s too soon to know for sure, but all signs point to a long, useful life. In fact, we’ve borne that theory out with in-house testing with numerous abrasive materials. We posted a video a while back, showing the effects of abrasive material conveyed through our Line Vac products: both the standard aluminum, and the hardened alloy Heavy Duty ones.  You can see the results for yourself, here.

If you’d like to get expert suggestions on your compressed air application, please give us a call.

Russ Bowman
Application Engineer
(513)671-3322 local
(800)923-9247 toll free
(513)671-3363 fax
Find us on the Web
Follow me on Twitter
Like us on Facebook

 

“Camel” image courtesy of William Warby. Creative Commons License.

Vac-u-Gun Improves Valve Cover Machining Operation

A machine shop called looking for a way to vacuum the scrap aluminum chips from their valve cover machining process. They were considering using a Line Vac Air Operated Conveyor to remove the chips, but preferred something hand held, so I recommended our Model # 6192, Vac-u-Gun Collection System.

Vac-u-Gun 6192

Model # 6192 Collection System includes Vac-u-Gun, reusable collection bag, extension wands and tools.

 

The Vac-u-Gun incorporates a nozzle insert where the orientation can be changed, allowing the unit to be used as a vacuum or a blow gun. Using the unit in vacuum mode would allow them to remove the chips and deposit them in the reusable collection bag (included with the system), rather than blow them in an undesired location in the shop. They could then change the direction of the insert and convert the unit to an air gun and blow off any residual cutting oils from the valve cover, reducing their overall process time. Also adding to their plant’s safety as the unit is OSHA compliant per Standard 1910.242(b) for 30 psi dead end pressure (cannot be dead ended) and allowable noise exposure per Standard 29 CFR 1910.95(a).

Vac-u-Gun orientation

Change from vacuum mode to blow mode in seconds!

 

This is another solution that EXAIR had on hand ready to ship same day to fit the customer’s needs.  If you have a similar application where operators are blowing debris into unwanted areas, please give us a call at 1-800-903-9247.

Justin Nicholl
Application Engineer
justinnicholl@exair.com
@EXAIR_JN

Mini Chip Vac Reduces Rework, Increases Safety

I recently worked with a customer who was starting to experience material defects due to contamination during their machining process. There were also safety concerns, as the operators were cutting themselves by hand cleaning the shavings out of the bores and wiping the surface of the machines clean. They were considering using another standard electric workshop vacuum but had been reluctant due to their history of motors burning out, so they called EXAIR looking for a suitable compressed air operated vacuum.

Tuff Torq 1

Scrap contaminants on machine surface

I recommended using our Model # 6193-5, Mini Chip Vac System. The Mini Chip Vac uses compressed air to create a powerful vacuum, picking up dry or wet chips and delivering them to a 5 gallon drum (also available in 30, 55 and 110 gallon sizes). There are no moving parts, motors or electricity required to operate the unit, eliminating the customer’s concern for potential shock.

By using the Mini Chip Vac, the customer was able to remove the contaminants from the process, increase safety by eliminating the potential for injury, reduced the amount of defects and reduced downtime. The 5 gallon mini Chip Vac is also capable of being placed in tight spots and does not take up too much space. They were so satisfied with the results, they even made their own stand.

Tuff Torq 2

Cleaned machining area

Tuff Torq 3

Mini Chip Vac System with custom made stand

To discuss how EXAIR can improve your machining process, please contact an Application Engineer.

Justin Nicholl
Application Engineer
justinnicholl@exair.com
@EXAIR_JN

Identifying Reversible Drum Vac or High Lift Reversible Drum Vac

This summer we rolled out a new High Lift Reversible Drum Vac. Today, I received a phone call trying to figure out what Drum Vac the customer had. This led me to write a blog, “How can you tell the difference between a Reversible Drum Vac and a High Lift Reversible Drum Vac?”

The first identifier on the High Lift Reversible Drum Vac is the blue and black label attached to the muffler (pictured below), the label on our standard Reversible Drum Vac is silver and blue.

IMG_4591

High Lift Reversible Drum Vac Label

As time goes on the label may disappear from these rugged units after years of use. Our engineering team has had some forethought in this area, and we created a physical difference in the units that will not be removed, edited, or worn away. To confirm the identity of your Reversible Drum Vac, unscrew the body of the Reversible Drum Vac from muffler.

IMG_4590

High Lift Reversible Drum Vac (Left) Reversible Drum Vac (Right)

The High Lift Reversible Drum Vac will have a groove machined into the plug of the body. The Standard Reversible Drum Vac will be a smooth finish.

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The circled plug has the groove machined in it to identify the High Lift model.

img_4597

Close up showing machined groove

 

The High Lift Reversible Drum Vac doubles the lift of a Standard Reversible Drum Vac, which makes it great for any below grade liquid cleaning operations. The additional vacuum strength of the High Lift Reversible Drum Vac can be used to move viscous materials. Sludge, vegetable oil, and heavy motor oil can now be lifted from a coolant sump or trap at heights up to 15′ vertically. On top of this extra lifting capacity it features the same benefits as the Reversible Drum Vac. With no moving parts to wear out and no electricity required, it can operate safely and effectively for years.

Dave Woerner
Application Engineer
DaveWoerner@EXAIR.com
@EXAIR_DW

 

Heavy Duty HEPA Vac Reduces Dust When Vacuuming

hepafam_collection

EXAIR Heavy Duty HEPA Vacuum Systems

When selecting the proper EXAIR vacuum system for an application, several details are considered by our Application Engineers.  For example:

Does the vacuum need to vacuum liquids or solids?

If the need is to vacuum solid material, what is the approximate size of the material pieces?

How quickly does the material need to be vacuumed?

What is the compressed air supply available?

Is dust a major concern?

The last question becomes more relevant with finer material, especially dust or small dirt particles.  Many applications have a need for dust control and need a vacuum system capable of maintaining low dust levels.

The EXAIR Heavy Duty HEPA Vac was designed for this exact purpose.  With a HEPA filter that is tested in strict accordance to IEST-RP-CC-007 standards to provide a minimum of 99.97% filtration at the 0.3 micron level, the Heavy Duty HEPA Vac can provide an effective and highly efficient vacuuming method using only compressed air.

Fine Powder Hopper 2

Hopper used for fine powder collection

For example, in the fine dust collection hopper shown above, the hopper undergoes regular cleaning and maintenance which includes a thorough cleaning to remove any fine dust remaining in the hopper. This powder has a tendency to permeate the filtration used in most vacuums, and electrically powered units have continuously failed.

The Heavy Duty HEPA Vac is a perfect fit for this application need as it can provide adequate filtration, and it has no moving parts to wear out.

If you have a dusty or difficult vacuum application in need of a sustainable vacuum system, contact an EXAIR Application Engineer to discuss the Heavy Duty HEPA Vac.

Lee Evans
Application Engineer
LeeEvans@EXAIR.com
@EXAIR_LE

A Dull Knife Is A Dangerous Knife

Anyone who’s ever cooked, hunted, crafted, fished, whittled, opened a well sealed package, or sharpened a stick for roasting marshmallows knows what I mean. A dull knife requires more force to cut your material, which means that you’re using less of your muscle strength to control the blade. If you’re not sure of where the blade is going, that’s a heck of a thing to leave to chance, especially if you’re holding what you’re cutting in your other hand.

Even if (I might even say “especially if”) you don’t use a knife for cutting every day, the conventional wisdom dictates that you should keep its blade sharp. Not only is this imperative for safety reasons (see above,) but you’re going to make a MUCH higher quality cut as well.

Sharp blades result from high quality material that is professionally crafted, and expertly maintained. The cheaper the material, the easier the blade will dull. High carbon stainless steel blades cost a little more, but they’re also easier to sharpen, and they stay sharp longer. A decent stamping machine can turn out hundreds of blades an hour, but forging a single piece of metal results in a level of hardness that is much more conducive to maintaining a sharp edge. Speaking of maintaining a sharp edge, that’s going to be left up to the user. A lot of hardware stores provide sharpening services, but it’s not all that hard. Expert results can be obtained by following what the experts do, and the Boy Scouts of America have taken pride in doing stuff like this for over a hundred years now. Full disclosure: I’ve been a Scout Leader for over nine years now, so I may be biased, but I am unapologetically so. I use these tips, and my pocketknife is VERY sharp.

High quality material, professionally crafted and expertly maintained, is, of course, a successful recipe for a great many products other than knife blades. EXAIR applies these principles to every single item in our 168-page catalog of Intelligent Compressed Air® Products. Here are just a couple of examples:

*The Super Air Knife (no relation to the cutting tools discussed above) is available in a range of materials: aircraft grade aluminum, types 303 or 316 stainless steel, or PVDF. They’re engineered for maximum efficiency, minimum noise level, and manufactured to exacting quality standards.

Capture
*The Heavy Duty HEPA Vac System turns your open top drum into a powerful, high capacity, dust free, industrial vacuum. It’s made of a hardened alloy for superior abrasion resistance, and, with no moving parts, it’s virtually maintenance free.

Exair-heavy-duty-HEPA-vacuum

I could go on, but these are the two products, and the benefits they provide, that I’ve actually discussed with potential users just today. If you’d like to know more about how EXAIR products can keep the use of your compressed air sharp, effective, and safe, give me a call.

Russ Bowman
Application Engineer
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