Super Air Knife – Free Air Via a 40:1 Amplification Ratio

Intelligent Use of Compressed Air – Most industrial facilities have at least one air compressor.  The compressor is used to power anything from pneumatic tools, air powered equipment, compressed air cylinders, blowoffs and many more types of operations.  Improper use of compressed air can lead to unnecessary energy costs, high noise levels and dangerous exposure of personnel to high pressure air.

The EXAIR Super Air Knife uses only 1/3 of the compressed air of typical blowoffs.

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Long Super Air Knife with Plumbing Kit Installed and using the model 9060 Universal Air Knife Mounting Kit to Blowoff Laser Cutting Debris

By taking advantage of the Super Air Knife’s highly efficient design and the action of air entertainment, the Super Air Knife draws in large amounts of surrounding free outside air into the air stream. The result is a strong powerful air flow made up of a small amount of compressed air and a large amount of ambient air.

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  • Compressed air flows through an inlet (1) into the plenum chamber of the Super Air Knife. The flow is directed to a precise slotted orifice. As the primary airflow exits the thin slotted nozzle (2), it follows a flat surface that directs the airflow in a perfectly straight line.  This creates a uniform sheet of air across the entire length of the Super Air Knife. Velocity loss is minimized and force is maximized as room air (3) is entrained into the primary air stream at a ratio of 40:1.  The result is a well defined sheet of laminar airflow with hard-hitting force and minimal wind shear is delivered.

By using a Super Air Knife – and the advantage of the high amplification via air entertainment – for part blowoff, cooling, or drying you can reduce energy costs, reduce noise levels, and eliminate harmful dead end pressures. Other air knives typically entrain surrounding air at a ratio of 30:1 or less.

EXAIR offers the Super Air Knife with materials of construction of aluminum, Types 303 and 316 Stainless Steel, and PVDF to cover a wide variety of application temperatures and environments. Other materials may be possible, pending review by our Product Design Engineers. The Super Air Knives are offered as the knife only, as part of a full kit, which also includes a shim set, auto drain filter separator, and pressure regulator.  The Super Air Knife can be fitted with Plumbing Kits and/or Electronic Flow Control making installation easier and help to save on air usage.

If you have questions about Super Air Knives, or would like to talk about any EXAIR Intelligent Compressed Air® Product, feel free to contact EXAIR and myself or one of our Application Engineers can help you determine the best solution.

Brian Bergmann
Application Engineer

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EXAIR Super Air Knife Promotion Runs Through 12/31/17

EXAIR will be giving away a free Soft Grip Safety Air Gun with the purchase of any EXAIR Super Air Knife from November 1st through December 31st, 2017.  This special promotion will apply to all Super Air Knife orders, whether aluminum, stainless steel, or PVDF.  Use the promotional model number during the promotional period and receive a free model 1210, a value of $81.00! The Soft Grip Safety Air Gun is a Top Pick, and provides the ideal combination of forceful flow, quiet noise level and low compressed air usage.  To get the special promotional item, use the special part numbers as detailed in the link below.

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The Super Air Knife is the latest generation of the EXAIR engineered air knives with dramatically reduced compressed air usage and noise compared to other types of blowoffs.  The Super Air Knife is truly a more efficient tool for cleaning, drying or cooling parts, webs, or conveyors.  The air flow is a uniform sheet of laminar air across the entire length with a hard-hitting force.

Replacing a noisy blowoff with a Super Air Knife results is a significant reduction in sound.  Operation at a high pressure of 80 PSIG (5.5 Bar) leads to a sound level of just 69 dBA for most applications. Air amplification ratios (entrained air to compressed air) of 40:1 is produced. It also meets OSHA maximum dead-end pressure and noise requirements, for safe operation in the vicinity of plant personnel.

Typical applications for use include-

  • Post wash part drying
  • Sheet cleaning in strip mills
  • Conveyor cleaning
  • Part or component cooling
  • Web drying or cleaning
  • Environmental separation (air curtain)
  • Pre-paint blowoff and cleaning
  • Bag opening/filling operations
  • Scrap removal on converting operations

Take advantage of the Promotional Offering by clicking on the link at the top of the page.  Qualified orders receive the free model 1210 Soft Grip Safety Air Guns as shown below.

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FREE! EXAIR Model 1210 Soft Grip Safety Air Gun

If you have questions about Super Air Knives, Safety Air Guns, or would like to talk about any EXAIR Intelligent Compressed Air® Product, feel free to contact EXAIR and myself or one of our Application Engineers can help you determine the best solution.

Brian Bergmann
Application Engineer

Send me an email
Find us on the Web 
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Twitter: @EXAIR_BB

Video Blog: Which EXAIR Air Knife Is Right For You?

The following short video explains the differences between the 3 styles of Air Knives offered by EXAIR – The Super, Standard and Full-Flow. All of these Models are IN STOCK, ready to ship, with orders received by 3:00 PM Eastern.

If you need additional assistance choosing your EXAIR Air Knife, please contact an application engineer at 800-903-9247.

Justin Nicholl
Application Engineer
justinnicholl@exair.com
@EXAIR_JN

 

 

Product of the Year Award Winner- Long Super Air Knives

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Plant Engineering’s 2014 Product of the Year Award!

 

Last week, Plant Engineering presented EXAIR’s Long Super Air Knives the Bronze award for Product of the Year in the compressed air category.  In 2014, EXAIR introduced one piece, seamless Long Super Air Knives up to 108″ in length. No other company in the world can provide a one piece compressed air operated air knife over 54″ long. This one piece design allows for minimal footprint for long units, and an unparalleled uniform sheet of laminar air flow.  These long Super Air Knives conserve compressed air over drilled pipes or a manifold of air nozzles. Their compact design excels at large web drying and cleaning operations i.e. paper, rolled steel, aluminum foils, or plastic sheets. Air knives also excel at cooling extrusions, molds, heated rollers, or components. The air knives entrain ambient air at 40:1 ratio (40 parts ambient to 1 part compressed air) which means it moves a tremendous volume of air and delivers it to your target. The Super Air Knives provide all of these benefits quietly and efficiently. The air knife creates only 69 dBA of noise at 80 PSIG of pressure and it would be a great addition in areas where anyone is trying to limit harmful noise exposure to personnel.

 

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72″ Long Super Air Knife – One Piece Air Knives available in lengths up to 108″

These air knives continue EXAIR’s history of pushing the envelope in air knife technology. In 2010, EXAIR introduced the first polyvinylidene fluoride (PVDF) air knife to the market. The PVDF Super Air Knives provide resistance to UV light, inorganic chemicals, solvents, ozone, weather, fungi, chlorinated hydrocarbons, highly corrosive acids, weak bases and salts while maintaining a quiet operation (69 dBA).  This material change opened EXAIR to a variety of environments that cannot be served by blowers, aluminum, or stainless steel air knives.

For any questions about EXAIR’s Air Knives please contact an Application Engineer at 1-800-903-9247.

Dave Woerner
Application Engineer
@EXAIR_DW
DaveWoerner@EXAIR.com

 

Long Super Air Knife Dries Cast Acrylic Sheets

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I have a customer who works for a company that produces plain, acrylic sheets which are used to produce various products used in high end bathrooms. Generally, those products are bathtubs, shower surrounds, floor pans, etc.

Our customer produces the flat sheet which is produced by pouring a liquid resin between two glass sheets which is then cured to a solid phase. Once the glass molding material has been stripped away, the edges are finished and the sheet is washed and dried.

The drying part is where EXAIR 84” Long Super Air Knife comes into play. The customer’s sheet is two meters wide and so the 84” Super Air Knife provides a continuous curtain of air across the surface of the acrylic sheet to drive the rinse water off the sides and edges. Once dried, our customer lays a protective sheet of heavy paper between the sheets of acrylic to keep the surfaces from being scratched or otherwise blemished from rubbing during transport.

Prior to moving to the Super Air Knife for this production, the customer was using a series of 40 pieces of a flat, plastic, two inch wide, air nozzle made by a company who specializes in water nozzles. The nozzles themselves were designed to consume 24 SCFM @ 80 PSIG each. The customer had these mounted to a 1” pipe that was hung above the acrylic sheet. The problem was that these nozzles used so much air that they could barely keep 30 PSIG on the header pipe supplying them due to pressure drop in their system and the noise level was up over 90 dB. The result, poor blow off performance. The estimate for their air usage was in the range of 450 SCFM for this project.

After installing the 84” Super Air Knife, the customer was able to finally maintain a reasonable header pressure of 80 PSIG at the inlets to the Super Air Knife which provided for a solid and consistent blowing velocity all the way across the width of the material. The sound level was also able to drop down to a more pleasing 75 dB with implementation of the Super Air Knife. Finally, the air consumption was dropped to a more reasonable 244 SCFM for the 84 inch Super Air Knife. A 46% reduction on air usage.

If you have a wide format type of product that you are trying to cool, dry or blow debris from, consider the Long Super Air Knives. They will provide you with a forceful, even velocity across the full width of your material.

Neal Raker, Application Engineer
nealraker@exair.com

 

Acrylic_Clear_1-4_001 image courtesy of thebaumans. Creative Commons license

New Products To Serve New Applications Available In EXAIR Catalog 27

John of Partech CorporationJohn Son of Partech Corporation, South Korea

Last week I had the pleasure of meeting with the EXAIR distributors for South Korea (Partech Corporation) and Japan (CS Tech).  While there, we spent a great deal of time discussing applications for various EXAIR products, especially those which are new to our product lines. EXAIR’s NEW catalog 27 is now available and contains all of the details regarding our new product additions!

With the addition of Long One Piece Super Air Knives, the High Lift Reversible Drum Vac, and new Atomizing Nozzles we had “lengthy” discussions about the possibilities of the new products and the new application problems which can be solved.

For example, in a blow off application with critical need for a long length of fully laminar and continuous blowoff, the long, one piece Super Air Knife can provide a viable solution.  Or, when liquid needs to be vacuumed from a vessel that is 4 meters (13.2 feet) deep, the High Lift Reversible Drum Vac can be used.  And, for an enclosure coating application, the new Internal Mix Deflected Flat Fan Atomizing Nozzle can provide an atomized liquid spray at a right angle to the nozzle orientation, spraying the internal sides of the enclosure.

These new products, and all others, can be found in EXAIR’s catalog #27.  Click here to request your copy today.

Lee Evans
Application Engineer
LeeEvans@EXAIR.com
@EXAIR_LE