Ion Bars Eliminate Jam In Fiberglass Production

Last week I worked with a specialty glass manufacturer who was experiencing a static issue in their fiberglass mat production. Their particular production cycle consists of a rotary spinning process where molten glass exits a furnace and goes into a cylinder with several holes that rotates at high speed, causing the glass to be “pushed” through the holes. Upon exiting the cylinder, the fibers are blown down on to a conveyor belt underneath, treated with a binder and pressed together, then sent to an oven to cure. After the sheets exit the oven, they are air cooled, cut to the desired length, then sent to a sorter that directs the material to collection bins, based on thickness and length. It is at this point that they were seeing the parts start to “bunch” up, which caused the system to be shut down so an operator could manually clear the jam and sort the mats. The customer has experienced static issues before in other parts of their plant and took some readings and were seeing a 4 kV charge on the surface of the mats.

After discussing the details of the application, I recommended they use our 24″ Ionizing Bar, the width of their widest mat. The Ionizing Bars produce a high concentration of positive and negative ions to eliminate the surface static of an object when mounted within 2″ of the surface of the material. At 2″ away, the units are capable of dissipating a 5kV charge in less than half a second. By placing a unit above and below the exit point of the sorter, they would effectively remove the surface charge and eliminate the potential jam.

Ionizing Bars Work

Ionizing Bars are effective up to 2″ away and require no compressed air to operate.

Our Ionizing Bars are available in lengths from 3″ up to 108″ for a variety of small or wide surface treatment applications. For assistance selecting the best product for your specific requirements, please contact one of our application engineers at 800-903-9247.

Justin Nicholl
Application Engineer

Long EXAIR Super Air Knife Kit Provides Upgrade to Existing Blow-off Application

One of our long standing customers is a float glass manufacturer in the Middle East region. They had long been a customer for our Cabinet Cooler systems as their processes obviously tend to be quite hot.

They had recently come to me with a new problem they had in their pattern line wire separator. There are two sets of clamps that grip the glass, one set upstream and another downstream. The problem was that small chips were accumulating on the clamping pads and causing visual defects in the glass when clamped upon.

Their previous blowing “system” if you want to call it that, was a simple, perforated pipe connected to compressed air. The pipe was ineffective from many points of view. It did not produce a very forceful stream of air to blow the chips, it consumed a ton of compressed air when it was in operation, was very loud and quite un-safe to the operators in the area.

The one thing that the customer needed was a length of 84 inches for their blow off solution. EXAIR was able to meet this need fairly easily with our 84” Aluminum Super Air Knife Kit which was available from stock.


The Super Air Knife was positioned along-side the glass line to provide a momentary blast of air all along the length prior to gripping with the upstream and downstream gripping pads. This action cleared any debris and stopped the glass from being defective as a result of the clamping action.

The key to success in the application was in being able to provide a forceful blowing action evenly all the way along the length of the glass so no spots were missed.

Do you have a large or wide area blow-off application that you would like to discuss? Please contact our Application Engineering department and we will be glad to discuss your application. Or you can fill out our Application Assistance Worksheet and send it in for us to review and follow up with you.

Neal Raker, Application Engineer

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