Super Ion Air Wipes – Eliminate Static on Wire, Cable, Extrusions

Gen4 Super Ion Air Wipe

As the colder dryer months are upon us, static electricity will be more frequent and will become a real nuisance.  Machines will start jamming, alignments will be difficult, dirt will collect to surfaces, and hazardous sparks can shock personnel.  EXAIR manufactures a line of Gen4 Static Eliminators to remove this nuisance.

EXAIR manufactures eight different product lines in two different styles within our Gen4 Static Eliminators.  In this blog, I will be covering the Super Ion Air Wipe.  This product blows ionized air in a 360-degree pattern.  They are engineered to remove static and debris from the outside of hoses, plastic pipe, extrusions, and coated wires.  With a split design, the Gen4 Super Ion Air Wipe can easily mount around the product without having to re-thread.  EXAIR stocks two different sizes with a 2” (51mm) and 4” (102mm) inside diameter. The Super Ion Air Wipes give a fast static-decay, a shockless and non-radioactive design, variable flow and force, low air consumption and no moving parts.

8462 Super Ion Air Wipe Kit

The Gen4 Super Ion Air Wipe can be purchased as a kit which will include the power supply (required for ionization), a filter separator (to clean contamination from the compressed air), and a pressure regulator (to control the blowing force).  The filter and regulator are properly sized to avoid any air flow restrictions or loss of performance which can occur when using components which are not suited for the application.

Static

Generally speaking, static is generated from non-conductive surfaces being “rubbed”.  This could be from going over rollers on a conveyor, stacking product onto each other, sheet feeding, and even peeling away a backing material.  When non-conductive surfaces, or insulators, are moved or separated, electrons are “stripped” and redistribute on to different areas of the surface.  Static charges are typically measured in kilovolts (kV), or 1,000 volts, and they can be either positive or negative.  The higher the charge, the stronger the static force.  In reference, at 10 kilovolts, a spark can jump one inch (25 mm) from the surface.   EXAIR offers a Digital Static Meter, model 7905, to measure the amount of static voltage on a surface.  It is a great tool for finding problem areas in your process as well as determining the effectiveness of the treatment.

All EXAIR Gen4 Static Eliminators use one of two Power Supplies – your choice of the 2-port Model 7960, or the 4-port Model 7961.

These ionizers are powered by a 5,000V AC power supply.  The alternating current, AC, will create both negative ions and positive ions.  So, no matter the polarity of charge on the surface, the Gen4 Static Eliminators will be able to remove it.  The power supplies come in either a 2 port or 4 port design so you can power multiple Gen4 Static Eliminators with one power supply.  The input power is selectable from either 115VAC or 230VAC in both 50/60 Hz.   Two armored and electromagnetic shielded cables connect the Super Ion Air Wipe to the power supply. This will help to protect the cable from abrasions, cuts and splits which can be common in rugged industrial areas.

Static can be a real nuisance with shocking operators, “sticking” debris, and jamming processes.  If you run into these issues in your application, no matter the shape, EXAIR has a Gen4 Static Eliminator for you.  Even if you have cylindrical objects like tubes, pipes, hoses and extrusions; EXAIR can provide the Gen4 Super Ion Air Wipes in stock.  For more information, you can contact one of our Application Engineers at EXAIR.

John Ball
Application Engineer
Email: johnball@exair.com
Twitter: @EXAIR_jb

How it Works: Theory Behind the Vortex Tube

What is a vortex tube and how does it work? A vortex tube is a device used to separate compressed air into a cold and hot stream of air; but the main question that many people have theorized is how does this device work.

In 1928 George Ranque, a French physics student stumbled upon this phenomenon on accident while he was performing experiments on a vortex type pump. During the experiment George noticed that hot air was being exhausted from one side and the other side was producing cold air. Eventually the device was forgotten about until 1945 when the German physicist, Rudolph Hilsch published a paper describing the device, eventually causing it to gain popularity and find applications in the industrial world.

EXAIR’s Vortex Tube uses compressed air as the supply and contains no moving parts to create a cold and hot stream of air from either end of the device. Using the valve located on the hot stream the vortex tube can achieve temperatures as low as -50°F (-46°C) and temperatures as high as 260°F (127°C).

The diagram bellow is one of the widely accepted explanations for the vortex tube phenomenon.

When the vortex tube is supplied with compressed air the air flow is directed into the generator that causes spin into a spiraling vortex at around 1,000,000 rpm. This spinning vortex flows down the neck of the hot tube denoted in the diagram as red. The control valve located on the end of the hot tube allows a fraction of the hot air to escape and what does not escape reverses direction and travels back down the tube in a second vortex denoted in blue. Inside of the low-pressure area of the larger outer warm air vortex, the inner vortex loses heat as it flows back to the front of the vortex and as it exits the vortex expels cold air.

The phenomenon is theorized to occur because both the hot and cold streams rotate at the same velocity and direction. This means that a particle of air in the inner vortex makes a complete revolution in the same time that a particle in the outer vortex takes to make a complete revolution. This effect is known as the principle of conservation of momentum and is the main driving force behind the vortex tube. In order for the system to stay in equilibrium air particles lose energy, in the form of heat, as they move from the outer stream to the inner stream, creating the cold air vortex that gets expelled.

At EXAIR we have harnessed many uses of vortex tubes for your cooling needs. Both our Cabinet Coolers and our Adjustable Spot Coolers utilize the vortex tube to either cool down an overheated cabinet or provide spot cooling for many different applications including to replace a messy coolant system for small grinding and machining applications.              

If you have questions about Vortex Tubes, or would like to talk about any of the EXAIR Intelligent Compressed Air® Products, feel free to contact EXAIR and myself or any of our Application Engineers can help you determine the best solution.   

Cody Biehle
Application Engineer
EXAIR Corporation
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Air Operated Industrial Vacuum Helps Reclaim Grass Seed and Save Thousands

A customer who produces bags of grass seed were experiencing a large amount of lost product due to spillage during the bagging process. Any spillage they would typically sweep up and throw away. This sweeping would take a good amount of time. Their goal was to determine a way to speed it up the cleaning and see if it was possible to reclaim the seed that was currently scrapped.

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EXAIR has a broad line of industrial vacuums for a variety of jobs. In this case we recommended our Chip Vac.

EXAIR’s Chip Vac is a compressed air operated industrial duty vacuum designed for vacuuming up dry (or mostly dry) products. The powerful vacuum is suitable for use with metal, wood, or plastic chips and is designed to thread into the 2” NPT bung on standard drum lids. The Chip Vac can handle dry or coolant soaked chips from fixtures, floors and work surfaces of machining centers, lathes, saws, mills, and a variety of other industrial equipment. It was also very suitable for this grass seed application.

Electrically powered vacuums or shop vacs are not designed to be operated in a rugged industrial environment. Filters clog, motors wear out, and you find yourself frequently replacing them. EXAIR’s Chip vac has NO moving parts to wear out, doesn’t require maintenance, and needs nothing but a source of compressed air to operate. In addition, the sound level produced is half of that produced by an electric vacuum.

Chip Vacs-all
From left to right: 5 gallon, 30 gallon, 55 gallon, and 110 gallon Chip Vacs are sized for any cleanup need.

Using the Model 6193 Chip Vac System they were able to reclaim lost product in and around the machines in less time and more efficiently.  While the recovered seed could not be used in their certified premium product, they were able to add it to the “contractors” blend. Saving them around $2,500 annually!

Don’t waste your time, get yourself a vacuum designed for the job. One that’ll last year after year! With these systems in stock, ready to ship with an order by 3:00 ET, a unconditional 30 day guarantee and backed up by our 5-Year Warranty, there’s no reason not to give one a try!

Jordan Shouse
Application Engineer

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Images Courtesy of Oregon Grass Seed Bag Creative Commons.

Better Understand Your Blowoff Process with EXAIR’s FREE Efficiency Lab

panoramic view
The EXAIR Efficiency Lab

Many customers may not have the means to test the air consumption of their blowoff solutions. With compressed air being the most expensive utility in a manufacturing facility, it’s important to identify places where you can save money on your overall operating costs. EXAIR manufacturers a wide variety of products intended to help you reduce your compressed air usage. If you’re not able to accurately measure the consumption in your own shop, we invite you to send the products into EXAIR for testing. With EXAIR’s Award Winning Efficiency Lab, just simply contact an Application Engineer, box them up and send them to our warehouse in Cincinnati, Ohio.

EXAIR Efficiency Lab

Once we receive it, our engineers will complete some in-depth testing to determine the compressed air consumption, sound level, and force that your current solution provides. With this information, we’ll be able to compare it to an EXAIR Engineered Solution. This way we ensure that you receive the best, safest solution possible also capable of saving money through reduced air consumption and improved efficiency.  We’ll send you back a comprehensive report that’ll help you to make the best decision for your company.

I’ve been recently working with a customer that sent in one of the nozzles they’re using across all their CNC machines. They wanted us to test it out and see if we’re able to offer them something that could reduce their overall compressed air usage. The nozzle was one of the cheap plastic varieties and was attached to a commonly used modular hose. This type of modular hose is not designed for operating under high pressures. These hoses are more suitable for liquid coolant or air that is at or below atmospheric pressure.

IMG_7486
Inefficient and unsafe plastic nozzle

After testing, we found that at 80 psig the nozzle consumed 3.85 SCFM and produced a force of 1.92 oz. We also noticed that after 60 psig, the nozzle began to leak due to a poor seal where the nozzle met the brass hex. The EXAIR nozzle most suitable to replace this was the 1108SS. At just 2.5 SCFM at 80 psig, replacing the plastic nozzle with an engineered solution saves them 35% of their overall consumption for this blowoff. With close to 1000 of these nozzles in operation, that adds up quickly!!

In addition to increasing efficiency, replacing these nozzles also greatly increases overall worker safety. The sound level is reduced from 73 dBA to just 58 dBA and EXAIR’s nozzles also adhere to OSHA 1910.242(b). The plastic nozzles could be dead-ended, posing a hazard that can result in costly fines. These fines are assessed per infraction, so having multiple non-compliant nozzles can easily get very expensive if you’re subject to an unannounced visit by an OSHA inspector.

If you think you may have an opportunity to improve upon your existing blowoff methods, give us a call. We’ll be happy to take a closer look and have you send the product back to EXAIR for a quick trial in our Efficiency Lab. You’ll be glad you did!

Tyler Daniel
Application Engineer
E-mal: TylerDaniel@exair.com
Twitter: @EXAIR_TD