Super Ion Air Knife Removes Dust From Yogurt Cups

YogurtCup_bg
A yogurt cup

Part of the due diligence in discussing applications with our customers is gathering an understanding of their application process and needs.  In emails, phone calls, or online chats, we determine the parameters and constraints of the application to be sure that we have a proper solution to offer.  And, if we don’t, we explore custom solutions or help find something available outside of EXAIR.

In a recent email exchange with a yogurt manufacturer I received the photo below showing the filling process for their yogurt cups.  The adage goes that “a picture is worth a thousand words”, and it certainly holds true here.  The full process is shown, with labels and dimensions.  What more could you ask for to understand the flow of the application?

machine setup
The filling process for yogurt cups in this application

In this system, small dust particles were adhering to the internal walls of the yogurt cups.  When the cups would pass through the vacuum unit, the station designed to remove any dust or debris, static cling would prevent the system from removing all the dust.  Then, in the filling station, yogurt would be fed into insufficiently cleaned cups, resulting in defects and wasted product.

This customer contacted EXAIR in search of a solution to remove the static on the inside of the cups, and to help facilitate removal of the dust, if possible.  What they found was a perfect solution in our Super Ion Air Knife.

When the cups exit the feeder and enter the conveyor, they are placed in the same orientation with (6) cups across the conveyor over a width of 580mm (22.8”).  By installing a static eliminating solution over the conveyor at this point, we can remove the static before the cups enter into the vacuum cleaning station.  And, if we can provide a blowoff source as well, we can remove the dust particles before the cups are cleaned again via the vacuuming system.

The solution for this application was the stock model 111024 24” Super Ion Air Knife along with model 7907 Power Supply.  This Super Ion Air Knife provides a fully laminar and consistent sheet of static eliminating air, removing both the static and debris from inside the yogurt cups.  Operating at a low pressure (~20 psig), these units are also quiet and consume low volumes of compressed air.

By installing the Super Ion Air Knife into this application, this customer found a solution to remove both static and debris from the product.  In doing so, defects were eliminated and output was increased.

If you have a similar application in need of a similar solution, give us a call.  We’ll be happy to help.

Lee Evans
Application Engineer
LeeEvans@exair.com
@EXAIR_LE

How Much Force Does It Take?

In case you weren’t aware, the answer to “How much force does it take?” is always going to be, ALL OF IT.   At least that is what we generally think when trying to blow product off a conveyor belt or diverting parts into bin, etc. Speed and efficiency play a direct role in to what nozzle or blow off device you should use in order to get the job done and be able to repeat the process.

The question we are often asked by customers is, “How much force to I need to move this?”  That is a question that we cannot often answer without asking more questions.  The good part of this is, there is a formula to calculate just how much force you need to move an object.   A good video explaining friction is shown below.

In order to answer the question of how much force do I need, we really need to know all of the following:

Weight of the object
Distance from target
Is it on an incline or level
Distance needed to move
Then, the usually unknown variable, the coefficient of friction between the target and what it is sitting on.

Often times it is the thought process of, my target weighs 5 pounds, I need 5 pounds of force in order to move it from the center of this conveyor belt to the edge, this is not the case.   If you wanted to lift the object over a break between two conveyors then you would need slightly more than 5 pounds in order to ensure you are lifting the front edge of the unit high enough to meet the other conveyor.

Whether you know all of the variables or only a few, if you need to get an object moved and you want to try using compressed air to do so, give us a call and we will help you find the best engineered solution for your application.  Then, we’ll back all stock products with a 30 day guarantee if you don’t like how the system performs – but rest assured, we get it right almost every time.

30 Day Guarantee
The EXAIR 30 Day Guarantee

Brian Farno
Application Engineer Manager
BrianFarno@EXAIR.com
@EXAIR_BF