EXAIR offers systems for total static control. When static is a problem on moving webs, sheet rock, three dimensional parts, extrusions or packaging, EXAIR has a solution. The Gen4 static eliminators (also called ionizers) will eliminate the static charge. The shockless ionizers are use a power supply and produce a bulk of positive and negative ions. The charged surface attracts the appropriate number of positive or negative ions from the ionizer to become neutral (discharged).
Gen 4 Power Supplies
The two and four outlet Gen 4 power supplies have selectable voltage which allows you to choose input voltages of 115 VAC or 230 VAC. The modular power cable with electromagnetic shielding protects sensitive electronics against electromagnetic interference while easing connections and routing. One cable is for domestic USA power outlets and another is included to facilitate international outlet plugs. An integrated fuse on the primary protects against voltage spikes.
The two and four outlet selectable voltage Gen 4 power supplies require an input of 115VAC, 50/60 Hz or 230VAC, 50/60 Hz. A 6′ (1.83m) modular power cord and lighted power switch are included. Power supplies are UL Component Recognized to U.S. and Canadian safety standards, and are CE and RoHS compliant.
One power supply is able to power up two or four Gen4 static eliminators, which minimizes the space required for installation. EXAIR will build custom length cables to minimize the number of power supplies needed when products are spaced out. Each power supply can power up to 100′ of total cable length from any Gen4 static eliminators which are connected. For example, a two outlet power supply can have two Gen4 static eliminators with 50′ cables installed. The integrated high voltage connections to accept any Gen4 static eliminator are made from stainless steel to provide durability.
Combining our engineered airflow products with ionizers gives the ability to eliminate a static charge quickly from from great distances. Laminar flow airstreams make it possible to blow away contaminants and eliminate the charge that attracts them. If you have questions or want additional information please contact any of our Application Engineers for additional details and data.
The structure of an atom plays a role in the development of static electricity. Static, as you may know, causes disruption within many industrial and manufacturing processes and environments. It can shock personnel, create poor results on printing processes and product finishes, and cause process lines to jam or sensors to malfunction – just to name a few.
Before stepping into the Basics of Static Electricity, we may want to have a solid foundation on the makeup of matter. The foundation of all matter is the atom. All objects are comprised of matter. Matter is made of molecules, which are made up of atoms. All the atoms are built out of electrons, neutrons and protons. The molecule is the smallest measurement of matter that can exist by itself and still contain one or more atoms.
The structure and how these individual atoms and their components react is the groundwork for electron theory. Each component of the atom – the proton, neutron, and electron, are thought to carry with them a charge which also has a polarity to it. Neutrons have a neutral charge and contribute to the mass of an atom. The negative charged electrons, are lightest weight and will repel other electrons since they are the same polarity, they repel each other. Protons, being the positively charged carry a heavier mass and generally become attracted to the Electrons due to their polarities being opposing – opposite polarities attract each other.
Said again, opposite polarities attract and like polarities repel. This movement is what begins the actions and reactions which are described throughout the Basics of Static Electricity Interactive White Paper that is available through our site. If you want to discuss the next steps in how static is generated or eliminated we invite you to contact us.
I like jigsaw puzzles. I start with the outside…there’s something to be said for establishing the boundaries of any project…but I don’t necessarily work my way in from there. Oftentimes, a number of same-colored pieces go together quickly, and I make a little part of the big picture somewhere in the middle. If it’s a big enough picture and/or if there’s a sufficient number of pieces, I might get a few of those little parts going on, until some of them get joined together. Once that happens, the big picture develops faster & faster, and before I know it, the puzzle is solved.
As an Application Engineer for EXAIR, a jigsaw puzzle is an apt analogy for assisting a customer in selecting the right solution to an application. A recent situation proved what a good analogy this is: a caller from a custom label making shop needed to eliminate static from a bunch of thin Mylar film that was die cut into special little shapes so they could be laid out in specific arrangements. You know…like a jigsaw puzzle!
Now, there aren’t many better ways to generate a static charge than doing ANYTHING to Mylar. The magnitude of static charge created by the cutting process is downright vicious. As difficult as it was to put the first piece in place, it was IMPOSSIBLE to keep it there when they put the NEXT piece down adjacent to it. Same thing with the piece after that, and the piece after that, etc. They needed something to remove the static, and that something turned out to be an EXAIR Ion Air Knife. By installing a Model 8106 6″ Gen4 Standard Ion Air Knife along one side, they were able to gently blow a ‘whisper’ of ionized air that moved the freshly cut pieces from the die cutter’s platen so the operator could then lay them out to make the desired label design.
So, how did we arrive at the Gen4 Standard Ion Air Knife? Wouldn’t the more efficient & quieter Super Ion Air Knife be the “go to” solution? In an awful lot of cases, it certainly is. A couple of things made the Standard Ion Air Knife more attractive here:
Compressed air consumption: if this were an application for a continuous 36″ wide ionized air curtain in a fast moving product application with a high static charge, we’d have talked about the difference in consumption, at a high pressure (like 80psig) for the two different Ion Air Knives:
36″ Super Ion Air Knife: 104.4 SCFM, or 12,528,000 standard cubic feet per year*
*Eight hours a day, five days a week, 52 weeks a year. Assuming a compressed air cost of $0.25 per 1,000 standard cubic feet, that’s an operating cost difference of:
(15,350,400 – 12,528,000) SCF X $0.25/1,000 SCF = $705.60 per year.
In this case, though, it’s a 6″ Ion Air Knife, blowing a short puff of ionized air a few times a minute, at about 5psig supply pressure…anything more would blow those small mylar pieces all over the place:
6″ Super Ion Air Knife: 1.85 SCFM, or 23,088 standard cubic feet per year*
*Three 2-second cycles per minute, eight hours a day, five days a week, 52 weeks a year. Assuming a compressed air cost of $0.25 per 1,000 standard cubic feet, that’s an operating cost difference of:
(23,088 – 18,720) SCF X $0.25/1,000 SCF = $1.09 per year.
Sound level: again, this would be a prime consideration if they were operating at higher supply pressures. But, at the lower pressure necessitated by this application, the Standard Ion Air Knife’s 66dBA, a second or two at a time, is hardly noticeable.
Price: The purchase price (2021 pricing) of the Standard Ion Air Knife was ~17% less than the Super Ion Air Knife. Normally, we’ll talk about the operating cost…but not when the difference (see above) is just over a buck a year.
Air flow pattern: Since a curtain of ionized air was a good fit for this application, an Ion Air Knife (Super or Standard) was the logical choice. If a more concentrated flow was called for, we’d have used an Ion Air Cannon or Ion Air Jet. If they were looking for something handheld, a Gen4 Ion Air Gun or Intellistat Ion Air Gun would have been offered. For static dissipation on the entire circumference or perimeter of a part, we’d have talked about a Super Ion Air Wipe. The size & shape of the air flow, in fact, is frequently where we “start the negotiations” on product selection…sort of analogous to starting with the outside border pieces of a jigsaw puzzle!
EXAIR Corporation has a broad range of Static Eliminators, that are just one part of our diverse offering of Intelligent Compressed Air Products. If you’ve got questions, we’ve got answers…give me a call.
Russ Bowman, CCASS
Application Engineer EXAIR Corporation Visit us on the Web Follow me on Twitter Like us on Facebook
The Gen4 Super Ion Air Knife is a powerful static eliminator that prevents jamming, tearing, shocks and dust build up by neutralizing static and blowing away the debris.
They combine the quiet and efficient Super Air Knife with the compact design of the rugged Gen4 Ionizing Bar resulting in a total solution to remove static electricity from plastics, webs, sheet stock and other product surfaces. Removing the static helps reduce or eliminate the process issues that the static electric causes, allowing for greater production speeds, improved product quality and a cleaner product. Some of the issues static causes include, dirt and dust buildup on surfaces, misreads for sensors, poor quality from ink jets, poor print quality on printed surfaces, and personnel getting shocked.
The Gen4 Super Ion Air Knife floods an area or surface with static eliminating ions. With a uniform airflow across its length, misalignment to critical surfaces like webs is avoided. The force can be adjusted from a light breeze, to a full out blast of air. The Gen4 Super Ion Air Knife is electrically powered, is shockless and has no moving parts.
How It Works
In the diagram above, compressed air flows through an inlet (1) into the plenum chamber of the Gen4 Super Ion Air Knife. The flow is directed to a precise, slotted orifice. As the primary airflow exits, it creates a uniform sheet of air across the entire length, pulling in in surrounding air (2). An electrically powered Gen4 Ionizing Bar (3) fills the curtain of air with positive and negative charges. The air stream delivers the static eliminating ions to the product surface (4) where it instantly neutralizes static and cleans off dust and other particulates.
The Gen4 Super Ion Air Knives are powerful tools, and very quickly dissipates 5kV of static even at low compressed air supply pressures. At 5 PSIG, only 3.7 SCFM (0.3 BAR, only 105 SLPM) of compressed air per foot of length is required!! Sound levels are also very low, resulting in quiet operation.
Added Features –
Compressed Air Inlets are provided on each end and the bottom of the Super Air Knife
Thicker shims can be installed easily if more force is needed.
Emitter points are durable stainless steel
The high voltage cable is armored to resist cuts and abrasion, and has integral grounding. Threaded bayonet connector is fully assembled and ready to use
Gen4 Ionizing Bars and Power Supplies are UL Component Recognized to U.S and Canadian safety standards and are CE and RoHS compliant
Power Supplies are 115/230 VAC selectable and come with 2 or 4 outlets
Standard lengths from 3″ to 108″ (76mm to 2743mm) are offered, and custom lengths are available to meet your process needs
Successful applications include web cleaning, pre-paint dust removal, shrink wrapper machinery, printing equipment, package cleaning,and bag opening/filling operations.
If you have questions about Gen4 Super Ion Air Knives, other types of Static Elimination products, or any of the 16 different EXAIR Intelligent Compressed Air® Product lines, feel free to contact EXAIR and myself or any of our Application Engineers can help you determine the best solution.