Cold Gun Aircoolant Systems Eliminate Mist & Breathing Problems In Machine Shops

Some machine tool operations require flood coolant. Not only does the liquid remove heat of friction from the tool and the work piece, it also provides lubrication that the cutting of some materials require. For other machining operations, mist coolant removes heat, provides a measure of lubricity, and minimizes (to a degree) the volume of liquid used in a flood coolant application.

This high speed photograph illustrates how flood coolant gets atomized by a machine cutting tool.

Whether you flood or mist liquid right onto a tool cutting metal, some of it’s going airborne. CNC machines are oftentimes equipped with collection systems for coolant mist, and it’s not unusual to see ambient mist collectors installed in machine shops to take care of the mist that escapes individual machines.

These mist collectors play an essential role in these facilities, as there are considerable health risks associated with exposure to these fluids, both oil- and water-based. In the U.S., the National Institutes of Health (NIH) compiles & analyzes risks associated with skin contact & inhalation of metalworking fluids. The National Institute for Occupational Safety and Health (NIOSH) has comprehensive recommendations of limitations on exposure to them. In England, the Health & Safety Executive agency likewise published a document geared toward helping machine shops and their employees work safely with them.

Speaking of NIOSH, they strategize a Hierarchy of Controls that can be applied to most any industrial process:

Elimination of the hazard isn’t always possible, but when it is, it’s the most effective option.

While mist collectors (Engineering Controls) are reasonably effective (and essential in the large number of applications where metalworking fluids are necessary), there are still a fair amount of applications where liquid coolant CAN be eliminated. For those applications, consider the EXAIR Cold Gun Aircoolant Systems.

Cold Guns not only eliminate messy and potentially hazardous liquid coolants, but also have been proven to improve cutting tool life.

Using Vortex Tube technology, EXAIR Cold Guns generate cold air flow from a supply of compressed air, instantly & on demand, with no moving parts to wear or electrical components to burn out. They’re safe, quiet, effective, and install in minutes, using a built-in bar magnet and 1/4 NPT compressed air connection.

Both Standard & High Power Systems come with Filter Separators, and are available with Single or Dual Point Hose Kits.

We know we can’t replace liquid coolant in every machining application, but if you’d like to explore elimination of it in your processes, give me a call.

Russ Bowman, CCASS

Application Engineer
EXAIR Corporation
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The Value Of Knowing

One of my many favorite shows as a child was the animated series G.I. Joe.  Through the main story line, they tried to teach a life lesson at the end of every episode.   Then the famous saying would come out.   “Knowing is half the battle.”  This has proved to be extremely true and helpful throughout my life and my career.

The biggest lesson that I believe I have learned is that when you don’t know the answer, ask for help.  Knowing the right person to ask is quite often just as good as knowing the information yourself.   This is why the Application Engineering team here at EXAIR is comprised of people from such diverse backgrounds.

If one of us is unfamiliar with your application there is most likely someone nearby who has been exposed to your industry or specific process.  For instance, I have a machine tool background, and you call to discuss discharge of our Reversible Drum Vac versus some other mechanical pump, then I may ask Justin Nicholl or Russ Bowman about the mechanical pump for help with understanding your situation.  This also showcases just how much of a team effort goes into solving problems for our customers.

Fortunately for us, the company also backs us up when we run across an unfamiliar process or problem. EXAIR’s 30 day guarantee allows us to get the product into your hands so you may test it risk free for 30 days. Test it within your facility under your conditions for a real world result. We enjoy learning about new processes and problems, plus we get to add this knowledge to our diverse experience.

Just in case you were wondering what kind of experience we have at our disposal, here is a brief listing of our core knowledge. If we were to include our internships, educations, field experience and people who are still at EXAIR but were once in the Application Engineering department, this list would go on and on:

  • Machine Tool
  • Injection Molding
  • Industrial Pumps
  • Natural Gas Regulators
  • Petroleum Nozzles
  • Compressed Air Hand Tools
  • Industrial Supply
  • Electronic Sensors / Transducers
  • Aerospace
  • Mechanical Power Transmission

So as you can see, if we don’t know about it or haven’t seen something like it,  chances are you have a unique application that we are still going to do our best to help with.

If you have any questions or would like to discuss one of our compressed air applications, feel free to contact us.

Brian Farno
Application Engineer
BrianFarno@EXAIR.com
@EXAIR_BF