I recently had a chat conversation with a customer who was looking to cool the tooling on his CNC router, mill and lathe in his small machine shop. As the day went on the tooling would begin to heat up, it would warp the bit, causing irregularities in the finished product. In some cases the tooling was getting so hot, it would actually break, creating a safety concern.
He had reviewed some of our cooling products and was thinking of using our Cold Gun in the application but was concerned with the air demand. The Cold Gun consumes 15 SCFM @ 100 PSIG and provides a 50°F temperature drop (from supply temperature) with 1,000 Btu/hr. of cooling capacity. The problem was that his compressor only produces a little over 9 SCFM. I explained that the existing compressor would in fact be undersized as it doesn’t produce enough volume to keep up with the demand of the Cold Gun.
Due to the limited amount of compressed air available, our Mini Cooler System, Model #3808, would be the better solution. The Mini Cooler also provides a 50°F temperature drop with a little less cooling power, 550 Btu/hr., but this system only requires 8 SCFM @ 100 PSIG, falling within the existing compressor’s output capacity. The Mini Cooler also includes a magnetic base as well as flexible tubing to direct the cold air to the desired location, making it easy to move from machine to machine.
For U.S. and Canadian customers, EXAIR offers a 30-day unconditional guarantee to try.
If you want to learn more about the EXAIR Mini Cooler or any cooling product, you can contact an Application Engineer. We will be happy to help you.
Two weekends ago I had the pleasure of flying out to meet my friend in Colorado Springs and ski the weekend at Breckenridge. As an avid skier Breckenridge has been one of the resorts I have been wanting to ski since I started skiing out west. The weather was amazing and I couldn’t ask for better; the Saturday blue skies and cool breeze followed up by a Sunday of snow fall. The Trip was a dream come true. Breckenridge is specifically known for having high winds that howl across the peaks that stand at a max of 12,998 ft. above sea level. These chilling winds would freeze just about anyone if you aren’t dressed prepared for them as they blow right in your face on the lift. As I was sitting on the lift with these cold winds blowing in my face it brought to mind EXAIR’s Vortex Tubes, Cold Guns, and Cabinet Coolers.
EXAIR’s Vortex Tubes and similar products provide everything from a cool blast of air to a frigid breeze to cool off various parts and products. In a lot of smaller milling and grinding applications the Cold Gun has been used as a replacement to costly coolant-based alternatives. Vortex tubes have been used in cooling applications since 1945 and assist in everything from stress testing electronics to cooling down plastic parts during ultrasonic welding.
If you have any questions or want more information on how we use our vortex tubes to improve processes all over industry. Give us a call, we have a team of application engineers ready to answer your questions and recommend a solution for your applications.
Cody Biehle Application Engineer EXAIR Corporation Visit us on the Web Follow me on Twitter Like us on Facebook
Many machining companies like to use coolant to flood their parts for drilling and milling operations. But what if there was an alternative way? EXAIR has an interesting technique by using cold air instead of coolant. This would help save time by eliminating cleaning and drying of parts as well as reducing coolant waste. EXAIR calls this product our Cold Gun Aircoolant System™.
The Cold Gun Aircoolant System uses a Vortex Tube to produce a cold air stream at 50oF (28oC) below supply air temperature. Heat is one of the major causes for dulling and premature failures for tools, and by blowing cold air, it will reduce the heat buildup in tools while also removing the chips from the surface. The EXAIR Cold Guns are very compact, portable, and easy to use. Just attach compressed air to the unit, and it will produce cold air. Since they do not have any moving parts, Freon, or electricity to operate, it is maintenance-free and long-lasting. And, EXAIR offers a 5 year “Built To Last” warranty against defects in workmanship and materials. These systems will extend tool life, improve tolerance control, and increase production rates by replacing coolant during milling, cutting, and drilling operations.
The benefits of using the Cold Gun Aircoolant System extends beyond reducing tool wear, finishing with dry parts, and surface smearing. It can be used in applications where liquid coolant cannot be used. This would include wood products, MDF, and plastics. As insulators, cutting tools will get extremely hot as the material will not remove any heat like with metal chips. Thus, machining can soften, gall, or burn the surface of the material; allowing only slow speeds for operations. The cold air from the Cold Gun can keep the tools sharp and the materials hard and firm. With plastic materials, this is very beneficial as it will keep the plastic rigid for tight tolerance machining. If burnishing or scoring is occurring, the Cold Gun Aircoolant Systems can help to improve the surface finish of your product. Other applications would include surface grinders, laser cutters, hot melt setting, and band saws. The Cold Gun Aircoolant Systems are a low-cost solution that can do a lot of great things to improve processes.
EXAIR offers two types, the Cold Gun and the High Power Cold Gun. The High Power Cold Gun blows twice the amount of cold air as the Cold Gun which doubles the cooling capacity. They come standard with either a Single Point or a Dual Point Hose Kit with a cone and flat nozzle. All systems come with a magnetic base and a filter separator. The magnetic base makes this device simple to attach to your machine and start using. The four models that EXAIR stocks are in the photo above.
EXAIR is running a promotional offer on the Cold Gun Aircoolant Systems. From now until the end of yr2019; if you buy a Single Point Cold Gun System or a Single Point High Power Cold Gun System; model W5215 and model W5230 respectively, we will include a free model 5902 Dual Point Hose Kit, a $39.00 value, with your system. And as always, EXAIR offers a 30-day unconditional guarantee for our customers in the U.S. and Canada to try them out. If you have an application that you believe would be better served with an EXAIR Cold Gun Aircoolant System™, contact an Application Engineer. And take advantage of our promotional offering by receiving a FREE Dual Point Hose Kit.
Like many companies, here at EXAIR we generally always have a promotional offering. These rotate throughout the months and this month is no different. The current offering involves the EXAIR Cold Gun Aircoolant Systems.
These systems help to reduce cutting fluid use, increase production speeds, increase tool life, and has helped more customers than I know. One customer in particular is a maintenance worker from a welded tube manufacturer. This facility had very little amount of downtime permitted due to the high efficiency and high volume of orders. When a machine went down the maintenance team were in like a trauma team to determine the cause of failure and get it remedied to get the line back up and running. One of the biggest problems they would have is when they would have to dry machine a quick part to get the machine back up and running, this would either ruin tools or they would have to slow down the machining time to get the surface finish and dimensions they truly needed. After talking with us the team ordered a Single Point Cold Gun Aircoolant System as these parts were generally smaller shafts or machine dogs.
They received the system in and sure enough a machine went down. The crew went to work and once the part needed was found they got to work on their lathe trying to make a new piece. The Cold Gun held itself straight to the headstock thanks to the integrated magnet and the flexible single point hose kit routed the cold air straight to the cutting point. They didn’t have to fill up the liquid tank or setup the mist system on the lathe, they simply turned on the compressed air and let the lathe do the work. They were able to take what had recently been around a three hour machine job with heavy wear on tooling to a two hour job, no finish pass was needed on the part, and their tools weren’t completely spent by the end of the job.
They got the part back into the machine, made adjustments, and then went to work getting the machine back into production.
Right now, if you would like to try out a Cold Gun Aircoolant System you can order before 12/31/2019 and use the link to order through our promotion in order to receive a free Dual Point Hose Kit with your qualified purchase.