Need to Remove Stubborn, Sticky & Difficult Debris from a Surface? Try this.

Scrape off, and blow away, stubborn debris with the Model 1244-48 Soft Grip Super Air Scraper.

EXAIR has designed a new type of nozzle called the Super Air Scraper.  This nozzle combines a scraping blade with our 2” Flat Super Air Nozzle.  Together, it creates a mechanical force with an air force to remove stubborn sticky material.  This patent-pending nozzle can be added to the EXAIR Soft Grip Air Gun to create a powerful scraping tool. 

Model 1144 Super Scraper Nozzle

Let’s breakdown the nozzle.  The Super Air Scraper nozzle is a model 1144 which has a ¼” NPT female connection.  The model 1144-A includes a ¾ – 32 UN adaptor for connecting to the Soft Grip Safety Air Gun extensions.  The scraper can be changed when worn with a replacement blade; model 902007.  To add flexibility to the Super Air Scraper, a shim set, model 1132SS, can be used to modify the blowing force.  With these combinations, the nozzle complements the scraper as an effective way to clean with compressed air. 

Soft Grip Super Air Scraper

To control the pressurized air to the nozzle, EXAIR attached the 1144-A Super Air Scraper to the Soft Grip Safety Air Gun, model 1244.  This gives a comfortable and ergonomic way to use and operate this product.  We offer different extensions for hard-to-reach applications ranging from 6” (152mm) to 72” (1,829mm) in length.  With the extensions that are 36” (914mm) and longer, EXAIR installed an additional foam grip sleeve.  This gives additional leverage for scraping material at a distance like at the floor level.  Chip Shields are also offered to prevent blow-back onto the operator.  You can view the details of the new product at this link on our website: Soft Grip Super Air Scraper

To give some ideas for applications, the Soft Grip Super Air Scraper can be used for removing tape, gasket material, caulk, adhesive, paint, labels, and more.  With the addition of air, the detached material is blown away during scraping, keeping the area clean to target the remaining “stuck” material.  If gummy or flaky substances are a nuisance for workers, the Soft Grip Super Air Scraper can keep the machine or work station clean and operational. 

Just like all cataloged items for EXAIR, we stock these parts for same day shipment with orders placed before 2 p.m. EST.  For U.S. and Canadian customers, we offer a 30-day unconditional guarantee to see how great this product can work for your application.  If you have sticky, flakey, or greasy substances that need to be removed, the Soft Grip Safety Air Scraper is up to the challenge.  If you have any questions about the product or your “gummy” situation, you can contact an Application Engineer for help. 

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

NEW from EXAIR! The VariBlast Precision Safety Air Gun

EXAIR’s New VariBlast Precision Safety Air Gun provides a strong, focused blast of air ideal for use in a wide variety of blowoff applications and processes. This CE compliant, lightweight gun utilizes an engineered variable flow trigger that is capable of producing variable force upon the target by simply pulling the trigger. The comfortable, full finger trigger and convenient hanger loop are built-in to the ¼ NPT Safety Air Gun.

Utilizing our range of small Super Air Nozzles (available in both type 316 SS and PEEK plastic for non-marring applications), this gun has the ability to fit into tight spaces while still delivering a strong blowing force. The VariBlast Precision Safety Air Gun is available with an optional 12” or 20” extension (3” extension installed on base model guns) that can also be outfitted with an impact resistant polycarbonate Chip Shield. The air gun body itself is constructed of a high impact polyacetal material for durable use over many years.

All available models of the VariBlast Precision Safety Air Gun come outfitted with an engineered nozzle that cannot be dead-ended, assuring safe usage for your operators and meeting the required standards put forth by OSHA under 29 CFR 1910.242(b). With sound levels as low as 58 dBA with the Model 1808SS, these guns are also well below the allowable limits of noise exposure discussed by OSHA in 29 CFR 1910.95(a).   

Inexpensive air guns are commonly seen in a variety of catalogs and industrial supply companies. Most contain triggers or other components are constantly need replaced. Additionally, their performance is similar to that of an open pipe or tube and can be extremely wasteful, not to mention a potential OSHA violation.

All of EXAIR’s Safety Air Guns will help you operate efficiently & safely. If you would like to discuss your blowoff process with an EXAIR Application Engineer, give us a call. With products available to ship same day from stock, we can get a solution to you as quickly as tomorrow!

Tyler Daniel

Application Engineer

E-mail: TylerDaniel@EXAIR.com

Twitter: @EXAIR_TD

The Importance Of Properly Sized Compressed Air Supply Lines

EXAIR Corporation manufactures a variety of engineered compressed air products that have been solving myriad applications in industry for almost 37 years now.  In order for them to function properly, though, they have to be supplied with enough compressed air flow, which means the compressed air supply lines have to be adequately sized.

A 20 foot length of 1/4″ pipe can handle a maximum flow capacity of 18 SCFM, so it’s good for a Model 1100 Super Air Nozzle (uses 14 SCFM @80psig) or a Model 110006 6″ Super Air Knife (uses 17.4 SCFM @80psig,) but it’s going to starve anything requiring much more air than those products.  Since compressed air consumption of devices like EXAIR Intelligent Compressed Air Products is directly proportional to inlet pressure, we can use the flow capacity of the pipe, the upstream air pressure, and the known consumption of the EXAIR product to calculate the inlet pressure of a starved product.  This will give us an idea of its performance as well.

Let’s use a 12″ Super Air Knife, with the 20 foot length of 1/4″ pipe as an example.  The ratio formula is:

(P2 ÷ P1) C1 = C2, where:

P2 – absolute pressure we’re solving for*

P1 – absolute pressure for our published compressed air consumption, or C1*

C1 – known value of compressed air consumption at supply pressure P1

C2 – compressed air consumption at supply pressure P2

*gauge pressure plus 14.7psi atmospheric pressure

This is the typical formula we use, since we’re normally solving for compressed air consumption at a certain supply pressure, but, rearranged to solve for inlet pressure assuming the consumption will be the capacity of the supply line in question:

(C2 P1) ÷ C1 = P2

[18 SCFM X (80psig + 14.7psia)] ÷ 34.8 SCFM = 49psia – 14.7psia = 34.3psig inlet pressure to the 12″ Super Air Knife.

From the Super Air Knife performance chart…

This table is found on page 22 of EXAIR Catalog #32.

…we can extrapolate that the performance of a 12″ Super Air Knife, supplied with a 20 foot length of 1/4″ pipe, will perform just under the parameters of one supplied at 40psig:

  • Air velocity less than 7,000 fpm, as compared to 11,800 fpm*
  • Force @6″ from target of 13.2oz total, instead of 30oz*
  • *Performance values for a 12″ length supplied with an adequately sized supply line, allowing for 80psig at the inlet to the Air Knife.

Qualitatively speaking, if you hold your hand in front of an adequately supplied Super Air Knife, it’ll feel an awful lot like sticking your hand out the window of a moving car at 50 miles an hour.  If it’s being supplied with the 20 foot length of 1/4″ pipe, though, it’s going to feel more like a desk fan on high speed.

The type of supply line is important too.  A 1/4″ pipe has an ID of about 3/8″ (0.363″, to be exact) but a 1/4″ hose has an ID of only…you guessed it…1/4″.  Let’s say you have 20 feet of 1/4″ hose instead, which will handle only 7 SCFM of compressed air flow capacity:

[7 SCFM X (80psig + 14.7psia)] ÷ 34.8 SCFM = 19psia – 14.7psia = 4.3psig inlet pressure to the 12″ Super Air Knife.

Our Super Air Knife performance chart doesn’t go that low, but, qualitatively, that’s going to generate a light breeze coming out of the Super Air Knife.  This is why, for good performance, it’s important to follow the recommendations in the Installation Guide:

This table comes directly from the Installation & Operation Instructions for the Super Air Knife.
All Installation Guides for EXAIR Intelligent Compressed Air Products contain recommended air supply line sizes for this very reason.  If you have any questions, though, about proper compressed air supply, give me a call.

Russ Bowman
Application Engineer
EXAIR Corporation
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Video Blog: How-To Replace The Super Air Scraper Blade

The EXAIR Soft Grip Super Air Scraper is a great tool for any industrial environment that requires some cleanup. Some examples include removing tapes or sticky metal chips from the floor, scraping material from screening towers or removing stubborn adhesives and labels from workstation tabletops. They are available with extensions up to 72″ so reaching remote areas is also easier.

Today’s video is going to showcase how easy it is to replace the scraper blade within the nozzle and get back to work quickly.

If you would like to discuss how the Super Air Scraper could benefit your facility, contact us.

Brian Farno
Application Engineer
BrianFarno@EXAIR.com
@EXAIR_BF