Cleaning Out Pipes, Extrusions and Blind Holes

Look at the picture below of a band saw cutting a piece of tubing.  The amount of debris and coolant that is coating the pipe on the inside diameter and outer diameter is substantial.  Cleaning off the outside of a pipe is fairly easy and straight forward.  Cleaning the ID can be difficult.  This is a single instance where one of the EXAIR Back Blow Air Nozzles can turn a cumbersome job into a quick and easy step in the process.

1 – Metal Cutting Bandsaw

The tubing in the photo appears to be around a 3 or 4″ ID tubing which makes it ideal to be cleaned out internally by the model 1006SS – 1/4″ Back Blow Air Nozzle.  This nozzle is ideal for passage ways ranging from a 7/8″ diameter up to a 4″ diameter.

1006SS – 1/4″ Back Blow Air Nozzle

While cleaning out the short section may be able to be obtained with a forward blowing Safety Air Gun, if this was being cut from a 20′ length of tube it would be difficult to remove the debris from the remnant section of tubing.  The advantage being the debris from the saw cut no longer has to be blown out or left in the longer lengths of the tube.   The Back Blow Air Nozzle can easily be inserted and remove debris back from the saw cutting end.  Lee Evans demonstrates this in a video below.

If you would like to discuss any compressed air application, please feel free to contact an Application Engineer.  We will gladly help you determine which EXAIR product may be right for your application.

Brian Farno
Application Engineer
BrianFarno@EXAIR.com
@EXAIR_BF

1 – Metal Cutting Bandsaw image – S.J. de Waard, Creative Commons License [CC BY 2.5 (https://creativecommons.org/licenses/by/2.5)] – https://commons.wikimedia.org/wiki/File:Metal_cutting_bandsaw_(02).JPG

 

Flat Super Air Nozzles: Overview

EXAIR’s Flat Super Air Nozzles have been blowing away the competition since 2003.

EXAIR manufactures a variety of nozzles that are OSHA safe, high quality, and very efficient.  They are engineered to entrain the “free” ambient air into the air stream to create a powerful force while reducing compressed air usage.  Thus, saving you money.  With a multitude of blow-off applications like clearing small holes to quickly cleaning gantry CNC tables, EXAIR has the nozzles for you.  In this blog, I will discuss the features and benefits of the EXAIR Flat Super Air Nozzles.

The EXAIR Flat Super Air Nozzles are manufactured to blow a wide forceful stream of air.  Their patented design creates a high velocity, laminar air stream with minimal air consumption and low noise.  They come in two widths; 1” (25mm) and 2” (51mm).  EXAIR offers a standard Flat Super Air Nozzle and a High Force Flat Super Air Nozzle in two different materials, zinc-aluminum alloy and 316 stainless steel.  And with a metal construction, breakage is not a concern and performance are not sacrificed even in the harshest of environments.  The unique patented shims inside the EXAIR Flat Super Air Nozzles will give you three improvements to the design and function.  First, they come in different thickness to create a wide range of forces.  In conjunction with a regulator, you can “dial” in the correct amount of force from a breeze to a blast without overusing your air compressor.  The patented design also allows an even flow across the entire width of the air nozzle.  Lastly, they help to entrain the free ambient air; so that less compressed air is required.  The high efficiency design will save you money.  The EXAIR Flat Super Air Nozzles are effective in uniform blowing with safety and efficiency in mind.

To expand more on force adjustments with the Flat Super Air Nozzles, EXAIR has an easy way to change the shim to better suit your application.  You can increase or decrease the force of the nozzle by just removing two screws and changing the thickness of the shim inside.  EXAIR offers a variety pack called a Shim Set to give you a wide range of forces with the nozzles.  For the standard Flat Super Air Nozzle, they come stock with a 0.015” (0.38mm) shim for both the 1” and 2” sizes.  The corresponding Shim Sets will include a 0.005” (0.13mm), 0.010” (0.25mm), and 0.020” (0.51mm) shim.  The High Force Flat Super Air Nozzles will come standard with a 0.025” (0.64mm) shim; and the Shim Set will include a 0.020” (0.51mm) and 0.030” (0.76mm) thick shim.  This is a unique feature as most competitive flat nozzles do not allow you to do this.  The chart below corresponds the appropriate Shim Set to the Flat Super Air Nozzle.

Flat Super Air Nozzle to Shim Set Chart

What can make the Flat Super Air Nozzles even better?  Flexibility.  The Stay Set Hoses can add this for positioning the Flat Super Air Nozzles.  They are designed to manually move the Flat Super Air Nozzle to accurately target the air stream.  They allow the maneuverability to locate the nozzle at different heights or angles; and once positioned, the Stay Set Hose will hold the nozzle in place.  They come in different lengths from 6” (152mm) to 36” (914mm).  We carry two different styles of connections to adapt to any of the Flat Super Air Nozzles.  You can select the different lengths of Stay Set Hoses to the Flat Super Air Nozzle by the model number make-up sheet below.

EXAIR also can offer a Magnetic Base to your Stay Set Hoses and Flat Super Air Nozzles.  The Magnetic Base has a powerful magnet on the bottom to securely attach the blow-off nozzles vertically or horizontally.  This feature is great if you need to move the nozzles to different locations in your application.  EXAIR manufactures a one-outlet and a two-outlet design.  Each outlet has a ¼ turn valve to manually turn on or off the nozzle.  To add this product to the Flat Super Air Nozzle and the Stay Set Hose, you can use the model number make-up sheet below.

With the EXAIR Flat Super Air Nozzles, you can take advantage of the durability, safety, and efficiency for your blow-off devices.  In addition, you can build a system that will best suit your requirements by adding different lengths of Stay Set Hoses and/or Magnetic Bases.  With these combinations grouped in one model number and in stock for quick shipments, it makes it simple to purchase from EXAIR.  And just to let you know, if you are within the U.S. or Canada, they come with a 30-day unconditional guarantee to try them out.  If you need any help with our Flat Super Air Nozzles or how to build an optimum blow-off system, you can speak to an Application Engineer at EXAIR.  We will be happy to assist you.

 

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

Video Demonstration of Compounding Sound Levels

In industrial settings, having a single air nozzle or other blowoff product is often not the scenario that is seen.  Many applications require multiple points of blowoff, even if not in the same direction or for the same position within the machine.  In the scenario where multiple nozzles are used, sound levels can get tricky to calculate and is often thought of as a mystery.  If you follow our blog then you may have seen this excellent blog that shows all the math behind calculating the total decibels when multiple sources of noise will be present. The video below gives a demonstration of utilizing two of the EXAIR model 1100 – 1/4″ FNPT Super Air Nozzle.

In the video you see a model 1100 being operated and producing a sound level of 74 dBA from 3′ away from the nozzle point.  When the second nozzle is turned on (also producing 74 dBA individually), the pressure is adjusted back up to the same input pressure and the sound level meter registers 78 dBA from 3′ away.  Following the math laid out in the “excellent blog” link above, the sound level calculated comes out to be the same 78 dBA that is shown in the video using EXAIR’s Digital Sound Level Meter.

If you would like help determining the sound levels within your facility, check out the EXAIR Digital Sound Level Meter as well as reach out to an Application Engineer.

Brian Farno
Application Engineer
BrianFarno@EXAIR.com
@EXAIR_BF

 

Image of Ear auricle Listen by geraitCC0 Create Commons.

Customize Your Blowoff with Accessories for EXAIR’s Safety Air Guns

EXAIR offers a wide variety of different Safety Air Guns to allow you the flexibility to build the perfect air gun for any application. Installed with EXAIR’s engineered Air Nozzles at the tip, you can rest easy knowing that your operators are safe from the risks associated with excessive noise and dead-end pressure while also keeping air consumption to a minimum. With sizes as small as 4mm and up to 1-1/4” and everything in-between, the possibilities are nearly endless.

In addition to offering three styles of Safety Air Guns (VariBlast, Soft Grip, and Heavy Duty), we also have a variety of accessories available that can customize them even further. Chip Shields are a durable polycarbonate shield used to protect the operator from any chips, savings, or coolant that could be blown back towards them while performing any blowoff process. They’re available installed on any of our VariBlast, Soft Grip, or Heavy Duty Safety Air Guns. If you purchased a Safety Air Gun, but didn’t get a Chip Shield, don’t worry! Retrofit kits are available as well to allow you to install them after the fact.

Chip Shields

For applications that don’t permit the operator to come close, rigid pipe extensions are available in lengths ranging from 6” (152mm) – 72” (1829mm). To add any extension onto a Safety Air Gun model number, simply add the length required as a suffix to the standard model number. For example, a Model 1210-48 would be a Soft Grip Safety Air Gun with a 48” extension installed.

extensions

Have a hard to reach area that requires a slight bend or angle to reach? Not only is the Soft Grip Safety Air Gun available with rigid extensions, but also can be used with one of our Stay Set Hoses. Stay Set Hoses are used for applications where frequent re-positioning is required. The hose has “memory” and will not creep or bend. If you need to get around a tight corner or into a difficult space, the Stay Set Hose can be installed on the Soft Grip Safety Air Gun with lengths ranging from 6”-36”.

1210-30SSH

In addition to accessories for the Safety Air Guns themselves, 12’ coiled hoses are also available with 1/8 NPT, ¼ NPT, and 3/8 NPT swivel connections. These are great for preventing tangled air lines and keeping the area neat and tidy!

Coiled Hose

With all of these options available for same day shipment from stock and backed by our unconditional 30 day guarantee, there’s no excuse not to try them out! Order now through September and receive a FREE Model 1126 1″ Flat Super Air Nozzle!

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