Cold Guns for Spot Cooling or Replacing Mist Systems

By using only a source of compressed air, the Cold Gun and High Power Cold Gun produces a stream of clean, cold air 50°F (28°C) below your compressed air supply temperature. The Cold Gun is very quiet at only 70 dBA and has no moving parts to wear out. Just supply it with clean compressed air and it’s maintenance free.

How does it work, and what are the benefits?

  • The Cold Gun uses compressed air to produce a stream of clean, cold air at 50°F (28°C) below supply air temperature. Generally this will be 20°F-30°F outlet temperature.
  • They use Vortex Tube technology…no moving parts to wear out.

How A Vortex Tube WorksInstant cold air flow with no moving parts!

  • Cold flow and temperature are preset to optimize cooling capability, and are non-adjustable to prevent freeze-up during use.
  • Eliminates the expense of both the purchase & disposal of cutting fluids when replacing expensive mist systems.
  • Removes the potential for health problems associated with breathing mist & vapors, and the safety issue of slipping on a wet floor.

Cold Gun Aircoolant System selection is easy & straightforward…we offer a standard, and a High Power version to meet your specific needs.

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Four systems to choose from, to meet most any need.

We also offer Single & Dual Point Hose Kits, to further meet the needs of your application.

One of the best applications I have seen with our cold gun came from a customer in Peru. They are a gold mining operation and they were having trouble with the liquid they were using to cool a saw. Read all about it here!

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If you have an application that you believe would be better served by the use of an EXAIR Cold Gun, give us a call.

Jordan Shouse
Application Engineer
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The Case for the Cold Gun

Heat is an unavoidable by-product of any cutting or machining operation. Think about it: you’re creating friction on a piece of material with a fast-moving piece of harder material in order to forcibly separate pieces of the original material from its existing shape & size. No matter what, something’s going to get hot: the work piece, the tooling, or (almost always) both. If you don’t do something about it, your parts can become damaged, your tooling can become dull and brittle, and productivity will suffer.

There are ways to alleviate the problem…you can slow the speed of your tooling, but that’s hardly practical, and only marginally effective.  You can use liquid cooling…in fact, you may have to if the particulars of the operation require the lubrication you can only get from a cutting oil or liquid coolant.  But those can be messy, expensive, and the time you spend maintaining the coolant could certainly be spent better elsewhere…like, on machining your products!

The EXAIR Cold Gun Aircoolant System is a novel solution to these problems…heat related and otherwise:

  • The Cold Gun uses compressed air to produce a stream of clean, cold air at 50°F (28°C) below supply air temperature.
  • They use Vortex Tube technology…no moving parts to wear out.
Instant cold air flow with no moving parts!
  • Cold flow and temperature are preset to optimize cooling capability, and are non-adjustable to prevent freeze-up during use.
  • Eliminates the expense of both the purchase & disposal of cutting fluids.
  • Removes the potential for health problems associated with breathing mist & vapors, and the safety issue of slipping on a wet floor.

Cold Gun Aircoolant System selection is easy & straightforward…we offer a standard, and a High Power version to meet your specific needs.

Four systems to choose from, to meet most any need.

We also offer Single & Dual Point Hose Kits, to further meet the needs of your application.  Right now, you don’t have to decide up front…order a Cold Gun Aircoolant System with a Single Point Hose Kit before December 31, 2018, and we’ll throw in the Dual Point Hose Kit for free.

If you’d like to find out more about how Cold Gun Aircoolant Systems can improve your machining or cutting operations, give me a call.

Russ Bowman
Application Engineer
EXAIR Corporation
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The Cold Gun Really Does Work!

“The High Power Cold Gun really does work!”  That’s a statement a customer I spoke with recently told me during a phone conversation.   Our catalog and flyer had come across his desk many years ago and he had just passed it by like it was another piece of junk mail.   Well when his application suddenly went from being able to use liquid coolant to having to cut dry, his cycle times and process times greatly increased.  He searched for a solution to the problem he was seeing and the tooling manufacturers were trying different coatings and his operators were trying to get him to reprogram the part.  He knew there was a way to avoid all of these recommendations but could not find it.  Until, he was sitting at his desk and remembered seeing EXAIR on a piece of paper with an Aircoolant system.  He did a quick search on the internet and found our homepage

Once he was on our site he immediately found the Cold Gun Aircoolant System.  He ordered a 5330, a High Power Cold Gun System w/ two cold outlets.  When he got the unit in, he immediately hooked it to the machine and fixed the nozzle to dispense the cold air directly at his cutter contact area.   The part ran and for the first time since they had started running the process dry, the machine was cutting a good part at his old cycle time. 

The operators couldn’t understand it and the owner even had a hard time himself.   That was until the machine stopped and they felt how cold the air was coming out of the Cold Gun and they saw the finish on the part.  They put it on several different applications that were running into similar problems with surface finish and tool life and it proved to be a worthy tool for their production line.  

Recently, he had a business acquaintance contact him with a similar problem on a stainless steel milling application.   Our customer immediately recommended the Cold Gun to him and even gave him one from his own machine to try out. 

It is interactions like this that help us to succeed and we thank all of our customers for these interactions.  This is also how we are able to have a case study for every product we offer. 

This is just one of many customer applications that we have helped with over the years.  Our application index and case study files are yet another way that we are able to help our future and existing customers with their compressed air needs.   If you have an application you aren’t sure we have done before, please contact us and let us know.  If it hasn’t been tried before, we’ll do our best to help you find an EXAIR product to make it work.

EASTEC Is Just Around The Corner

Seeing as how I have a background in CNC Machining and have been to the upcoming EASTEC show several times I thought it would be a good idea to try to help some of the machinery distributors and manufacturers showcase their product to the fullest.   Now I know that some companies will only take a skim cut on their demo parts just to make it through the show with a minimal chance for hiccups.  However there are those that want to truly show the machine in action, taking full depth of cuts to showcase how rigid their castings are or how much metal a customer can “hog” at once to cut their cycles times down.  No matter the case EXAIR has a product that your demonstration may benefit from.

It has been my experience that if you are running an average CNC program that is cutting a real part you will most of the time be running some form of cutting fluid / coolant.  Once the machine is set up and into the cut, the coolant will hit the spindle, the tool, or even the part identities and spray the operator window with gallons of coolant.  This makes watching the machine actually cut quite difficult, just like driving through a monsoon without windshield wipers and mud on your windshield.  This is where the Air Stik or Air Disk Window Blowoff Systems will make your machine stand out from the rest.

Instead of your potential customers looking at a window with a blanket of coolant on it not able to tell whether your machine is truly cutting a part or not, they will get to see through a clean window that is going to allow them to view the part being cut that you have spent hours programming to perfection.  The proof is in each of the pictures below.

These systems can be used on open top machines, closed top machines, lathes, or virtually any machine that has an operator window and compressed air.  The Air Stik Open Top  Machine Kit is shown below.

Now for those that don’t want to deal with the coolant deliveries and coolant cleanup at the end of the show but are having some issues with your demo part program not cutting too good dry then we also have an option for you.  We offer our Cold Gun Aircoolant Systems along with our Adjustable Spot Coolers to be used on dry cutting operations.  The Cold Gun and the Adjustable Spot Cooler have been used in a variety of machining applications and have been proven to significantly increase tool life, along with considerably improve surface finish.  These are ideal for an application where you are repeatedly skimming a demo part or even cutting certain materials.   For some of our existing customers they will only use a Cold Gun for the entire machining of their production parts.  A few pictures of both in action are below.

The best part of all the products mentioned is that they all operate off of compressed air which most machines require.  They have no internal moving parts to wear out like bearings or motors.  Lastly, they are ALL stock items that are manufactured here in Cincinnati, Ohio and can ship same day as long as the order is received by 3 P.M. Eastern Time.  So with the show coming up if you can’t see the machine cutting or are having some issues with your tools galling up give us a call, email, tweet, or Facebook message.   We can even drop ship straight to you while you are at EASTEC.

If you have any questions or need for these please don’t hesitate to contact me.

Brian Farno
Application Engineer
BrianFarno@EXAIR.com