Need More Capacity? Start By Finding it in House or Renting

I field a decent number of calls from companies that are trying to expand to new lines or venture into an area of production that they have not crossed into before.  Maybe it is bringing a process in-house that they traditionally outsourced, or altering a process that now requires a large scale blow off operation. In many cases, as these companies grow and succeed, their compressed air systems grow with them. Some of them need to find out find out how much air they will need if when they make decisions to bring processes in house or expand a current process.

One of the first options when needing more capacity from your current compressed air system is to take a look at the existing demand side and determine if we can free up enough supply to meet the requirements of this new option.   Let’s say for instance a new 60″ Super Air Knife is needed.   To test that unit at 80 psig inlet pressure we would need to free up 174 SCFM of compressed air. In all the years we have been around it is still surprising to consult with customers who are using large numbers of open blow-offs, homemade air knives, coolant hoses and nozzles for compressed air etc. These companies can find that extra capacity in their current systems by retrofitting engineered solutions on to the aforementioned poor solutions for keeping compressed air efficient. IF you are using some of those solutions, call EXAIR today to find out how much air our products may save you.

In the event that is not possible to find the necessary new volume of compressed air by streamlining your current system, it means looking at adding compressor capacity.  Some companies think they have to go out to buy a new compressor immediately, simply to test this new process.   That is more often than not, false.   The best recommendation I have is to look into renting a compressor, much like the one shown below.

A Rental Tow Behind Air Compressor
A Rental Tow Behind Air Compressor
The compressor distribution piping.
The compressor distribution piping.

I saw this unit while I was jogging, well attempting to jog, on my lunch break.  This was outside a local company that apparently, going through a very similar scenario like I mentioned above.  When I looked a little closer, I noticed the unit included around a 75-100′ of hose that did not use the dreaded quick disconnect fittings everyone sees.  Instead it utilized what I know as a Chicago style air fitting which does not restrict the air flow nearly as much as a quick disconnect and permits you to utilize the largest volume of compressed air from the compressor – remember folks: properly sized compressed air lines and fittings are extremely important when needing to keep volume and pressure of compressed air at high levels.

A Chicago Style Air Fitting
A Chicago Style Air Fitting

 

Once I looked up the statistics on the compressor I found that it will generate up to 375 CFM at 150 psig.  This is more than enough to test or run a 60″ Super Air Knife and validate whether additional compressors are needed, as well as if the Super Air Knife will perform to meet your needs.   Then, when you are done with the test, you can simply return the air compressor. Based on the results of this test, this could be another point to decide if you could save the needed air from your current system or if you would require a new compressor.

The EXAIR Guarantee
The EXAIR Guarantee

The moral that I am trying to instill in this blog is simple.  If you have a need for more compressed air to validate a new or improved process, don’t hesitate to think outside of your existing system. Where there is a will and a need, there is a way.  If it doesn’t work, take advantage of our 30 day unconditional trial.

Brian Farno
Application Engineer
BrianFarno@EXAIR.com
@EXAIR_BF

EXAIR Vortex Tubes Reduce Cooling Cycle Time

In a recent phone call with an end user of EXAIR products, we discussed an automotive application within a robotic welding cell.  In this application a series of Fanuc robot arms orient front and rear doors for welding.  After the welds are complete the pre-EXAIR cooling cycle time was more than desired, so Vortex Tube options were explored.

The target cycle time for cooling each weld was 1.5 seconds.  In order to do so, the application needed to be able to quickly produce cold air flow, and required the solution to be lightweight (as to not place excessive torque strain on the robot) and portable within the work cell.

What we found was that the large EXAIR Vortex Tubes would have enough cooling capacity to remove the heat from the welds in the proposed time, but testing needed to be done to confirm.  So, medium sized Vortex Tubes were chosen to prove the concept of vortex-based cooling.

Robot VT 2
Test model installed on the robot

To test the concept, a medium sized Vortex Tube was installed into the application.

Robot VT
EXAIR Model 3299 Vortex Tubes installed in robot welding cell

After positive results from the testing, (3) model 3299 EXAIR Vortex Tubes were installed into the application.  With the installation of these Vortex Tubes the cycle time was brought within spec and the operations increased throughput.

If you have an application in need of instantaneous cold air, contact an EXAIR Application Engineer to discuss our Vortex Tubes.

Lee Evans
Application Engineer
LeeEvans@EXAIR.com
@EXAIR_LE

Bad News, Good News, Better News

Recently, I had the pleasure of solving an application for a steel pipe manufacturer. To clean the inside diameters of their freshly-washed pipes, they were using open end blow offs: the ever-popular and easy-to-make, but loud and inefficient crushed-end tubing. I got excited, because this was my first chance to discuss our brand-new Back Blow Nozzle, which is aimed (pun intended) at cleaning inside diameter surfaces. That’s where my story develops a “bad news/good news/better news” pattern…

The bad news: The pipes that need cleaning are up to 20” in diameter…a little too large for our Model 1006SS ¼” NPT Back Blow Nozzle to be completely effective.

EXAIR's brand-new Model 1006 Back Blow Nozzle.
EXAIR’s brand-new Model 1006SS Back Blow Nozzle.

The good news: The user already had a system set up, using the aforementioned “homemade” blow offs, which looked something like this:

Easy to make, hard on your ears...and your air compressor load.
Easy to make, hard on your ears…and your air compressor load.

The better news: They were able to easily adapt their system to install our Model 1120 High Force Super Air Nozzles, which lowered their compressed air consumption as well as the noise level of the operation.

That's the Model 1120 on the far right.
That’s the Model 1120 on the far right.

The moral to this story is, the solution may not be the first one that comes to mind. At EXAIR, that happens all the time. Line Vac questions turn into Air Amplifier answers, and vice versa. Cold Gun calls turn to discussions of Adjustable Spot Coolers. We’ve got three styles of Air Knives to choose from…they’re all perfectly suitable for a wide range of general industrial applications, but they each have their own particular advantages in certain situations. If you have a compressed air product application that you’d like to discuss, EXAIR is your best bet for the most efficient, quietest, quickest solution. It’s like I always say:

Russ Bowman
Application Engineer
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The Heat Is On…On The Way

The last few weeks of February here in Cincinnati were pretty rough with temperatures in the 20’s, even single digits, with sub-zero wind chills. Even as recent as last week, mother nature decided to show her angry side as we had one last snow blast to close out the winter season. It looks like we will be having a few days with lows in the 20’s this week then, hopefully, we should be well on our way toward spring. With spring right around the corner and temperatures expected to hover around the 50’s and 60’s later next week, I can say that this would be a welcomed trend!

Sunny sky
Is that the sun?

While the temperature rise may seem good for personal reasons, it can wreak havoc on sensitive electrical components in a control panel. A common, ill-advised “simple-fix” is to open the panel door(s) and use a fan to blow air into the enclosure. While this may seem like a good idea at the time, it could actually be causing long term damage. as you are now introducing contaminants to the area which may be contributing to the problem, rather than providing a solution. Luckily, EXAIR has you covered with our Cabinet Cooler Systems.

The compressed air operated Cabinet Cooler System incorporates a Vortex Tube to create two airstreams – one hot and one cold. As the cold, clean air is exhausted into the enclosure at a slight positive pressure, the hot, dirty air rises and exits through the cabinet exhaust. The hot air created by the unit is exhausted through the Vortex Tube. The systems are available in NEMA 12, NEMA 4 and NEMA 4X class rating, thermostat controlled or continuous operation up to 5,600 Btu/hr. of cooling capacity.

CC how it works
How the Cabinet Cooler Works

If you are unsure of you current heat load, we’ve got that covered too with our Cabinet Cooler Sizing Guide. This provides us all of the pertinent information to perform our calculations and recommend a system. Of course, you can always call an application engineer and we will walk you right through it.

Justin Nicholl
Application Engineer
justinnicholl@exair.com
@EXAIR_JN

 

Sunny image courtesy of wanko, Creative Commons License