Tag: back blow

Using EXAIR Products for “The Old One-Two Punch”

Published on by Russ BowmanLeave a comment

In boxing, there are five basic punches, and they’re commonly called out by numbers so that trainers can instruct boxers rapidly during the development of fundamentals. It’s also useful for them in real live bouts, where overly complicated plans can lead to defeat….former heavyweight champion Mike Tyson famously said, “everyone has a plan until they get punched in the mouth.” Those five basic punches are:

  • #1: The jab. Just like it sounds, this is a punch thrown directly forward with the lead hand. In many combinations, it’s the first punch thrown (that’s why it’s #1).
  • #2: The cross. This is a more powerful punch thrown with the back, or dominant, hand, and gets its power from the torque & rotation of the boxer’s body, when thrown correctly.
  • #3: The lead hook. This is an even more powerful punch than the cross. Its power comes not only from rotating the torso (like the cross) but also by pivoting on the lead foot to get the hip & shoulder involved. Because of the unbalanced and relatively unguarded position it leaves the boxer in, it’s riskier than a jab or cross, and oftentimes reserved for situations where the boxer sees an opportunity to score a knockout blow. If that plan doesn’t work, Mike Tyson’s famous quote above may very well come to fruition.
  • #4: The right uppercut. This is another devastating punch, thrown by the boxer’s dominant hand (assuming they’re right-handed) in an upward motion to contact the opponent’s head or body. If it connects to the chin or solar plexus, there’s a good chance the opponent will end up on the mat. It has to be thrown while the boxer is in close with the opponent, which gives the opponent the option to deal a devastating blow as well.
  • #5: The left uppercut. Same as above, but thrown with the boxer’s lead, or less dominant hand (again, assuming they’re right-handed.)

Because it generally leaves the boxer in a better defense position, the “one-two” combination is by far one of the most used moves in the ring. The term has even found its way into the popular vernacular, meaning two things that happen in rapid succession that lead to the desired outcome.

For the purposes of today’s blog (as the title suggests), I’m going to use it to describe an application where a customer uses two EXAIR products: a Model 1006SS Back Blow Air Nozzle, and a Model 6082 1″ Aluminum Line Vac in conjunction with each other.

This particular customer uses the Back Blow Air Nozzle to blow out the injector bore of an engine cylinder head assembly.

EXAIR manufactures three sizes of Back Blow Nozzles: our Model 1008SS Atto Back Blow Air Nozzle (left) is 0.2″ in diameter and can be used in 1/4″ to 1″ inside diameter holes, channels, etc. Model 11006SS 1/4 NPT Back Blow Air Nozzle (center) is good for 7/8″ to 4″ inside diameters, and Model 1008SS 1 NPT Back Blow Air Nozzle (right) is used for 2″ to 16″ inside diameters.

Thing is, they don’t want the debris flying all over the place. We considered a Chip Shield on the 1/4″ pipe extension that the Back Blow Air Nozzle was threaded onto, but since they insert it vertically from above, that could allow for debris to fall back down onto the assembly, and possibly right back into the injector bore, or one of the other openings on top. Instead, they opted for a Line Vac to vacuum the debris away as the Back Blow Air Nozzle blew it out of the hole.

While Line Vacs are primarily used to convey bulk material from one place to another (left), or to remove scrap trim (center), they’re also well suited for this application. Compressed air (1) enters the annular plenum (2) and is ejected at a high velocity through a ring of jets (3). This draws a vacuum on the inlet (4), creating a conveyance flow of air to carry whatever’s entrained in that flow through the outlet (5).

Engineered compressed air products have a multitude of advantages in applications like this. They’re durable & reliable. They have no moving parts to wear, or electrical components to burn out. They can operate continuously if needed, or they can be cycled on & off rapidly with no ill effects. If you’d like to find out how EXAIR Intelligent Compressed Air Products can help your operation, give me a call.

Russ Bowman, CCASS

Application Engineer
Visit us on the Web
Follow me on Twitter
Like us on Facebook

Better Working Conditions Thanks To Back Blow Safety Air Guns

Published on by Russ BowmanLeave a comment

Employee appreciation covers a wide range of things that employers do for their employees. From catered lunches to SWAG (stuff we all get) to recognition for milestone anniversaries with the company, I’m sure most of us are familiar with these, and other methods to thank workers for their efforts, time, talent, and loyalty.

I had the pleasure of speaking with the production manager of a company that specialized in parts for commercial vehicles. The assembly workers in a particular department had to periodically clean grease from inside a small opening. The only practical way to do it by hand was to reach their fingers in and wipe it out, a little at a time, until it was clean. They wore gloves to reduce skin exposure to the grease, but they’d tear, meaning they either had to stop and get a new glove, or continue to wipe the grease out with their bare fingers. The latter was less time-consuming, but the environmental, safety, and health manager wasn’t keen on that. They needed a ‘hands off‘ method of removing the grease.

This particular company had a number of EXAIR Safety Air Guns that had proven their worth in reducing compressed air consumption and noise levels, so the production manager called us for a solution. The initial thought, at the plant, was to use one of our Industrial Housekeeping Products, but it sure sounded to me like a textbook application for a Back Blow Safety Air Gun.

EXAIR Back Blow Air Nozzles come in three sizes, for bores from 1/4″ to 16″ in diameter!

And it was. After a brief discussion, the production manager ordered a Model 1306SS-12-CS Heavy Duty Back Blow Safety Air Gun before we got off the phone. It comes with the Model 1006SS Back Blow Air Nozzle installed, which is specified for inside diameters from 7/8″ to 4″. They had it the next day, and reported back that not only did the operators not have to reach their fingers inside the opening anymore, the Back Blow Safety Air Gun did the job in just a couple of seconds. This made everyone happy: the production manager because of the process improvement, the environmental, safety, and health manager because of the elimination of the hazard associated with continuous grease exposure to people’s hands, and the operators because the ‘ick’ factor from one of the less favorite tasks was reduced to an occasional wipe-down of the Back Blow Safety Air Gun’s Chip Shield.

Heavy Duty Back Blow Safety Air Guns come with Chip Shields, and Rigid Extensions from 6″ to 72″ in length.

Employee appreciation can take a number of forms. Not that there’s anything wrong with pizza, anniversary & holiday parties, achievement recognition, etc., but tangible improvements to everyday operations have to be close to the top of that list. I tell people, all the time, that I’m here to help them get the most out of our products, and their compressed air systems. I felt really good about doing just that with this customer. If you’ve got a situation like this that needs improvement, give me a call.

Russ Bowman, CCASS

Application Engineer
Visit us on the Web
Follow me on Twitter
Like us on Facebook

Application Spotlight! – Back Blow Nozzle!

Published on by Jordan T ShouseLeave a comment

Last month I started doing an application spotlight. In these, I’m going to pull from the dozens of phone calls or emails and walk you through how we on the Application Engineering team select a product for a specific application!

A customer called in with a tricky application where they need to keep the ID of a bearing cool. Seemed like a simple application, something where an air amplifier or a Super Air knife would be ideal!

But this wasn’t a simple application. They were heating the OD up, so they could add a surface treatment. The radiating heat was causing the inner race to slightly deform, so they wanted to cool it down, while not interrupting the heating taking place on the OD. And an air amplifier or knife would cool the entire bearing down with its larger pattern of air.

So we had to come up with an off-standard use for one of our products, and the first thought was our Back Blow Nozzles. The bearing ID was 2″, so we went with a 1006SS as it’s rated from 7/8″ to 4″. It was located, so the air stream was aimed downward. The airflow was hitting the ID and bouncing off the plate that the bearing sat on and worked its way out the top. This limited the air flow around the OD to basically zero, so it didn’t affect the coating process! Below is a quick sketch I did with the customer on the phone. It shows a section of the bearing and the air flow that would come from the back blow nozzle!

In more common applications, such as blowing chips or debris forward out of a pipe, our selection of forward blowing nozzles work quite well. However, this may not always be possible. The pipe may be long, making it impossible to push the debris all the way down the pipe. The other end of the pipe may not be open or there could be some process or area to which it is attached that would become contaminated if debris were blown in that direction. In any of these scenarios, a Back Blow Nozzle is the right tool for the job. An array of holes located around the outside diameter of the Back Blow Nozzle head provides a powerful 360° airflow pattern that will pull and clear out any leftover coolant or chips ahead of it within a pipe from a machining or any other process.

From the easy ID blow out application to the tricky “off book” applications, the application engineering team here at EXAIR are here to help you select the right product for you!

Jordan Shouse
Application Engineer

Send me an email
Find us on the Web 
Like us on Facebook
Twitter: @EXAIR_JS

Bearing Photo courtesy of Patrick via creative commons

Pipe ID Clean out Made Easy With EXAIR’s Back Blow Safety Air Gun

Published on by Tyler DanielLeave a comment

In certain applications such as blowing chips or debris forward, out of a pipe or blind hole, may not be possible. The pipe may be long, making it impossible to push the debris all the way down the pipe, the other end of the pipe may not be open or there could be some process or area to which it is attached, that would become contaminated if debris were blown in that direction. In any of these scenarios, a Back Blow Nozzle is the right tool for the job. An array of holes located around the outside diameter of the Back Blow Nozzle head provides a powerful 360° airflow pattern that will pull and clear out any leftover coolant or chips ahead of it within a pipe from a machining or any other process.

m4BB2017_1670x574
Small 1004SS easily clears debris

EXAIR has three different size Back Blow Nozzles; the 1004SS (M4 x .5), the 1006SS (1/4 NPT), and the 1008SS (1” NPT). The 1004SS is recommended for use on pipes as small as ¼” and up to 1”. The 1006SS can be used for a wide range of pipe sizes, from 7/8” up to 4”. The 1008SS nozzle offers the greatest overall force for stubborn or sticky materials stuck to the inside diameter of the pipe. This nozzle is suitable for use in pipes ranging from 2”-16”. As the Back Blow Nozzle will be blowing chips and debris back out of the pipe towards the operator, it is always recommended that a Chip Shield is used. The strong, polycarbonate Chip Shield will keep an operator safe from flying debris and keep your company in compliance with OSHA directive 1910.242(b). For visual representation of the performance of the Back Blow Nozzle, take a look at this short video clip that demonstrates its use.

All of EXAIR’s Back Blow Nozzles are available with extensions. For the 1004SS we have extensions from 6”-36”, and from 12”-72” for the 1006SS and 1008SS. The Back Blow Nozzle can also be installed on our VariBlast, Soft Grip, Heavy Duty, and Super Blast Safety Air Guns. With such a wide range of available sizes and configurations, we can tackle just about any internal pipe cleaning application. If you have a process in your facility that may benefit from the use of one of these nozzles, give us a call and get one on order today!

Tyler Daniel, CCASS

Application Engineer
E-mail: TylerDaniel@exair.com
Twitter: @EXAIR_TD