E-Vac Vacuum Generators- For More Than Just Pick and Place

A textbook application for vacuum generators is the ‘pick and place’ function.  With ever increasing automation and robotic cells, more and more opportunities present themselves to utilize the E-Vac Vacuum Generator as a part of the system to ‘pick up’ an object and ‘place’ it in a new position. But the E-Vac’s can be used for many more types of applications.

evac_models (2)

In-Line E-Vac

Another popular usage is to hold something in place. One of our customers uses an array of Adjustable E-Vacs to pull a vacuum and hold down various sizes of Styrofoam sheets during a machining operation. The previous system was a 1 hp blower type, and did not offer any flexibility for handling different size sheets. Sheets would slip and produce off quality results. After installing the new design, the system was able to handle any size sheet, and scrap levels went down dramatically.

adjustable_evacs (2)

Adjustable E-Vac

A unique implication that was solved with an E-Vac was to deflate sporting balls.  The customer printed custom logos, and preferred the items to be flat for the printing operation. Using a commercial grade electric shop vac didn’t completely deflate the balls, and motors burned out often.  Using a low vacuum In-Line E-Vac with a quiet Straight Through Muffler, the customer can now quickly and quietly, fully deflate the balls.

Another popular use for the E-Vac is to pull a vacuum for drawing up liquids or gases. A customer that manufactures automotive seats was having issues with the process, where the expanding foam was producing a gas, and the gas would produce pockets and voids in the foam after setting.  The customer used a model 800017 In-Line E-Vac to create a vacuum inside the mold and draw off the gas, eliminating the pockets and the voids in the final product.

Lastly, as I am big fan of recycling, anything and everything, we worked with a customer that recycles the old CRT style of computer monitor  (remember those?) The housing would be sawed in half, so that access to the internal components could be made. Because of the variability in the size and shape of the monitors, the customer was using an adjustable chuck system, which took time to set-up for every monitor, each being a bit different. To speed up the process, an EXAIR In-Line E-Vac and 5″ Suction Cup was implemented, and the monitor held in place by the screen, which was was very consistent in shape from monitor to monitor. This change reduced the set-up time required.

These and other Applications for the E-VACs and all other EXAIR products can be found on the EXAIR website on the Products page, under the Related Info section toward the bottom of each page.

If you have questions regarding E-Vac Vacuum Generators or any EXAIR Intelligent Compressed Air® Product, feel free to contact EXAIR and myself or one of our Application Engineers can help you determine the best solution.

Brian Bergmann
Application Engineer

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Getting A Little More Vacuum and Flow

Last week, a customer called and indicated that he was a long time user of the model 6013 High Velocity Air Jet.

6013

Model 6013 High Velocity Air Jet

The customer was using the Air Jet to remove light trim scrap from a manufacturing process. The Air Jets utilize the Coanda effect (wall attachment of a high velocity fluid) to produce air motion in their surroundings.  A small amount of compressed air to the Air Jet is throttled through an internal ring nozzle at speeds above sonic velocity.  In the above image, this produces a vacuum at the left side, pulling in large volumes of surrounding air. By utilizing this vacuum pull and ducting the right side exhaust, air and scrap stream to a collection area. The customer assembled a small, efficient, and inexpensive scrap removal system.

The reason the customer had called in was there were some recent changes to the manufacturing process and needed a bit more vacuum force and flow to handle larger scrap and longer travel. We explored using a larger shim, but they were already using the largest size (0.015″.) We talked about the other products that EXAIR offers (Air Amplifiers, Line Vacs) that are used for scrap removal and conveyance.  But with any change, there are usually other modifications and approvals that must be dealt with in order to proceed. So we hit upon the Adjustable Air Jet, which is an adjustable version of the model 6013.

6019

Model 6019 Adjustable Air Jet

The model 6019 Adjustable Air Jet utilizes an adjustable air gap in place of the fixed shim thickness.  This allows for greater air flow, which results in greater vacuum and conveyance distances. As is the case for many customers, we gathered some additional data to help this customer make a decision. We set up each of the units and tested them at maximum capabilities, and the model 6019 was shown to deliver upwards of 50% greater flow.  The customer felt certain this level of performance would handle what the changed process would require, and best of all, no modifications to any part of the set-up would be required, simply install the 6019 where the 6013 was currently placed.

The High Velocity Air Jet is also part of the model 1909 Blowoff Kit, and is also used in the model 8193 Ion Air Gun and model 8194 Ion Air Jet, for Static Elimination applications. Of course, each can be purchased as an individual item.

To discuss your application and how an EXAIR Intelligent Compressed Air Product can make your process better, feel free to contact EXAIR and myself or one of our other Application Engineers can help you determine the best solution.

Brian Bergmann
Application Engineer

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Air Amplifiers Speed Up Cooling Of Cast Parts

Do you like soup? I like soup. Especially on cold days in the winter. Living down south apparently ruined me for cold weather, because, even though I’ve been here in Ohio for 25 years, I still get a chronic chill in early November that won’t let go until about April. March, if I’m lucky. A nice, hot bowl of soup gives me a temporary respite from that dreaded chill, though, so yeah…I like soup.

Sometimes (OK; most of the time) I like it so much I don’t want to wait for it to cool (just slightly) to a temperature that won’t scald my tongue, so I resort to the age-old practice of blowing on those first few spoonfuls. Even though my breath is a fairly consistent 98.6F (give or take,) it’s still quite effective at transferring enough heat out for pain-free consumption. There are two reasons I’m thinking about this right now:

First reason: I’ve been working with an engineer at a large automotive plant…they were cooling a production run of metal cast parts with a series of fans. It ran pretty slowly, and they had a line of those pedestal mounted fans “waving at the parts as they went by.” The thought was, they could direct a stream of cooling air by using the focused flow of an Air Amplifier, and this might just allow them to speed up the line. And they were right. They tried a few Model 6041 1-1/4″ Aluminum Adjustable Air Amplifiers, with very favorable results. So favorable, in fact, that they ordered (40) more to outfit other casting lines in the plant, in arrangements similar to this:

With (16) models to choose from, EXAIR Air Amplifiers are a quick and easy way to provide a tremendous amount of cooling air flow from a compact, lightweight product.

With (16) models to choose from, EXAIR Air Amplifiers are a quick and easy way to provide a tremendous amount of cooling air flow from a compact, lightweight product.

Just like it might take more than one “blow” to cool off a spoonful of soup, they have installed multiple Air Amplifiers, in succession, on the lines, depending on the size, shape, and mass of the part. And the precise adjustability of the Adjustable Air Amplifiers allows them to dial in the optimum air flow, while minimizing their compressed air consumption. So the Production and Facilities folks are all very happy.

And (because I know you’re wondering) the second reason I’m thinking about conductive/convective heat transfer via air movement:

I trust you had already guessed what was for lunch today.

I trust you had already guessed what was for lunch today.

Russ Bowman
Application Engineer
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EXAIR Now Offers Swivel Fittings Up To 1″ NPT!

Fresh off the production floor is our newly designed 1″ NPT Swivel fitting, model 9204.  This swivel fitting, much like the rest of our swivel offering is, constructed of 303 Stainless Steel, both male and female threads, 25° of adjustment from center line which makes for a total of 50° for adjustment.

 

Model : 9204 1" NPT Swivel

Model : 9204 1″ NPT Swivel

This makes the eighth swivel fitting that has been released from EXAIR.  We now offer swivels that have M4 x 0.5mm thread up to a 1″ NPT thread.   A total of 61 different nozzles from EXAIR can be combined with the swivel fittings we offer to give adjust-ability when installing a Super Air Nozzle into a tight place or within an application that requires slight adjustments to the aiming of the nozzle.

EXAIR's Swivel Fitting Family

EXAIR’s Swivel Fitting Family

If you have any questions on which swivel fitting will best suit your application, or which of the 61 different nozzles should be installed onto a swivel for your application, let us know.

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

 

Swivel This Or Swivel That

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The Nano Super Air Nozzle is available with an M6 x 0.75 thread OR a 1/8 NPT thread.

I recently took a call from a customer who was looking for a Nano Super Air Nozzle with a swivel and NPT threads.  We have two versions of this (see above) thanks to our plethora of options.  We offer a newer Mini Swivel Fitting that will allow the M6 thread of the Nano Super Air Nozzle to go straight into the swivel joint and it gives you a 1/8″ MNPT on the opposite side.  This still permits the 25° from center range of motion as the standard swivels do but, with a smaller footprint,  is able to get into tighter spaces.

1110SSW - Nano Super Air Nozzle w/ Mini Swivel Fitting

1110SSW – Nano Super Air Nozzle w/ Mini Swivel Fitting

 

The other option is to utilize a model 1110SS-NPT which is a Nano Super Air Nozzle w/ 1/8″ NPT adapter, then add a 1/8″ NPT Swivel fitting which is a model 9052.  This option is a little bulkier, but if you needed some extra length on the nozzle side to get closer to the target area then it would be helpful.   This unit also offers the 25° from center range of motion and still gives a 1/8″ MNPT thread to plug into your system.

1110SS-NPTW - Nano Super Air Nozzle w/ NPT Adapter and 1/8" NPT Swivel Fitting

1110SS-NPTW – Nano Super Air Nozzle w/ NPT Adapter and 1/8″ NPT Swivel Fitting

As you can see in the picture above, the Mini Swivel fitting with Nano Super Air Nozzle is a more compact option, but does not reach as far as the standard 1/8″ swivel with NPT Nano Super Air Nozzle.  No matter the case, we have them both in stock and ready to ship same day on orders received by 3 PM EST that are shipping within the states.

Chances are if you have a need for a compressed air blow off, we will have more than one way to get the job done.   Our goal is to sell you the best engineered solution that will get the job done and make your life easier.  If you would like to discuss any of your applications, please contact us.

Brian Farno
Application Engineer
BrianFarno@EXAIR.com
@EXAIR_BF

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