Additional Benefits To The Adjustable E-Vac Vacuum Generators

The EXAIR Adjustable E-Vacs are available in 4 different sizes to fit whatever your pick and place, vacuum holding, degassing, or vacuum evacuation process may call for. These units have been used in a multitude of applications and the Adjustable factor makes them versatile enough to fit a production line with changing needs.

These are all examples of how an E-Vac pick-and-place system is just a solenoid valve away from automation.

The Adjustable E-Vacs have a few benefits that may go unnoticed if one is not keen to exactly how they are constructed and function. This sets them apart from many vacuum generators. When dealing with vacuum generator applications such as pick and place, having a part that is always the same is easiest. This is not always the case. Sometimes it is not just the dimensions of the part that changes, sometimes the material changes or even the surface finish of the part. This is where the ability to change from a porous to non-porous vacuum generator is extremely helpful. Generally this means the material of the parts getting picked up will allow air flow through them (paper, cardboard, wood) or not (plastic, glass). A porous vacuum generator will pull more flow through the part material to hold the vacuum, a non-porous vacuum generator will pull less flow and achieve higher vacuum levels.

To better understand the difference between porous and non-porous, we’ve written about that. Check out Tyler Daniel’s blog on the difference between the two here. The beauty of the Adjustable E-Vac is that it can easily convert from porous to non-porous with a simple adjustment. This is a great feature for a job shop that may change materials they are cutting or engraving on their machines and need to adapt in a moments notice for the job at hand. This could also reduce the number of vacuum generator variances a store room may need to keep on hand for a series of production lines and help to reduce the chance an incorrect model is installed on a machine due to fewer variants.

Adjustable E-Vac

Another benefit which can be helpful in a production environment that has an E-Vac picking up dirty or debris ridden material is that the Adjustable E-Vacs can be disassembled and cleaned. Picking steel sheets off a laser cutter in order to remove the scrap that has a volume of spatter / dust can cause an accumulation of debris on the internals of any vacuum generator. By unscrewing the plug from the body the Adjustable E-Vac can be easily cleaned and all passageways maintained at a level to offer continual performance.

No matter what, the adjustability coupled with minimum components and fastener free disassembly of the unit are two great features that can help minimize machine downtime, lower number of parts kept on hand for machines, and ensure optimal performance no matter what the requirement is for the vacuum generator. If you would like to discuss further, please contact us.

Brian Farno
Application Engineer
@EXAIR_BF
BrianFarno@EXAIR.com

Industrial Housekeeping Overview: Vacuum for Dry Materials

EXAIR has vacuums for wet dry and wet/dry combinations. Shop floors and manufacturing areas can be extremely dirty places with build up from machining, trash, those random spare bolts that are laying around that nobody knows where they belong or came from. An electric vac is a common choice for these kinds of issues, but they tend to burn out their motors as all electric motors will eventually do. Well, there is a solution to this issue and that is a compressed air powered vacuums system. Compressed air powered dry vacs bring the same power as your standard electric vac with one added bonus, they don’t wear out! As long as you supply clean dry air to the vacuum generator that powers the system the unit will run indefinitely. The main question is which system do I get? Well, here is a little overview of the different dry vacs that we have to offer here at EXAIR.

EXAIR’s family of Chip Vac Systems

Our Chip Vac system is the perfect choice for anyone trying to replace their basic industrial shop vac. The system can handle both dry and damp material and is perfect for cleaning out chips from your CNC machine and milling operation. The Chip Vac comes in the standard 55gal drum but also a 5gal, 30gal, and 110gal variant. The 30gal through the 110gal units come in the following kits that allow you to pick what exactly you need to get the job done:

  • Chip Vac System: Chip Vac, lever lock drum lid (for desired drum size), shutoff valve, filter bag, 10’ flexible vacuum hose, chip wand, 2 extension wands, crevice brush, and skimmer/floor tool.
  • Deluxe Chip Vac System: Chip Vac System: Drum Dolly, tool holder, Chip Vac, lever lock drum lid (for desired drum size), shutoff valve, filter bag, 10’ flexible vacuum hose, chip wand, 2 extension wands, crevice brush, and skimmer/floor too.
  • Premium Chip Vac System: Drum (for desired drum size), 20’ of air hose, Drum Dolly, tool holder, Chip Vac, lever lock drum lid (for desired drum size), shutoff valve, filter bag, 10’ static resistant vacuum hose, chip wand, Heavy Duty Aluminum Tools, crevice brush, and skimmer/floor tool.
EXAIR’s Heavy Duty Dry Vacs turn ordinary drums into high powered, rugged industrial vacuum systems.

If you are working with a heavier or abrasive material or need a stronger vacuum pull in general then Heavy Duty Dry Vac is the way to go. This system is exactly the same as the Chip Vac except when trade out the Chip Vac vacuum generator for the Heavy Duty unit which provides more air flow and is made out of a hardened alloy providing superior performance and abrasion resistance. Due to this all kits come with 10’ of static resistant vacuum hose and the Aluminum tools. Also, the Heavy Duty Dry Vac does not come in the 5gal variant like the Chip Vac system. The Heavy Duty Dry Vac comes in the following kits:

  • Heavy Duty Vac System: Heavy Duty Dry Vac, lever lock drum lid (for desired drum size), shutoff valve, 10’ static resistant hose, hose hanger, 1/2” quick connect fittings, 20’ air hose with swivel fitting, pressure gauge, and aluminum chip wand.
  • Deluxe Heavy Duty Vac System: Drum Dolly, Heavy Duty Aluminum Tools, Heavy Duty Dry Vac, lever lock drum lid (for desired drum size), shutoff valve, 10’ static resistant hose, hose hanger, 1/2” quick connect fittings, 20’ air hose with swivel fitting, pressure gauge, and aluminum chip wand.
  • Premium Heavy Duty Vac System: Drum (for desired drum size), Drum Dolly, Heavy Duty Aluminum Tools, Heavy Duty Dry Vac, lever lock drum lid (for desired drum size), shutoff valve, 10’ static resistant hose, hose hanger, 1/2” quick connect fittings, 20’ air hose with swivel fitting, pressure gauge, and aluminum chip wand.
EXAIR’s Heavy Duty HEPA Vac in use

For your dustier applications or applications that require the air to be filtered we offer the Heavy Duty HEPA Vac system, which uses the same vacuum generator as the Heavy Duty Dry Vac but provides a higher level of filtration. The HEPA rated filter meets the requirements of 99.97% filtration at the 0.3-micron level. Although this system is designed for dustier applications, the unit itself does not carry any third-party rating for explosion proof. Like the Heavy Duty Dry Vac system the Heavy Duty HEPA Vac only comes in the 55gal base unit and the 30gal and 110gal variants. The Heavy Duty HEPA Vac comes in three different kits that are as follows:

  • Heavy Duty HEPA Vac System: Heavy Duty Dry Vac, lever lock drum lid (for desired drum size), shutoff valve, pre-filter, HEPA filter, 10’ static resistant hose, hose hanger, 1/2” quick connect fittings, 20’ air hose with swivel fitting, pressure gauge, and aluminum chip wand.
  • Deluxe Heavy Duty HEPA Vac System: Drum Dolly, Heavy Duty Aluminum Tools, Heavy Duty Dry Vac, lever lock drum lid (for desired drum size), shutoff valve, pre-filter, HEPA filter, 10’ static resistant hose, hose hanger, 1/2” quick connect fittings, 20’ air hose with swivel fitting, pressure gauge, and aluminum chip wand.
  • Premium Heavy Duty HEPA Vac System: Drum (for desired drum size), Drum Dolly, Heavy Duty Aluminum Tools, Heavy Duty Dry Vac, lever lock drum lid (for desired drum size), shutoff valve, pre-filter, HEPA filter, 10’ static resistant hose, hose hanger, 1/2” quick connect fittings, 20’ air hose with swivel fitting, pressure gauge, and aluminum chip wand.

If you order one of these system from now until May 31, 2021 then take full advantage of our promo which adds a free Vac-U-Gun to the purchase. Now who doesn’t like free stuff? See the link in the image below to see our promotion page.

Link to our promo

If you have any questions about compressed air systems or want more information on any of EXAIR’s products, give us a call, we have a team of Application Engineers ready to answer your questions and recommend a solution for your applications.

Cody Biehle
Application Engineer
EXAIR Corporation
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Pressure – Absolute, Gauge, and Units of Both

Compressed air is a common utility used throughout industrial facilities and it has to be measured like any other utility in order to know just how much a facility is using. When dealing with compressed air a common unit of measurement that readily comes up is psi, pound-force per square inch. This unit of measure is one of the most basic units used to measure pressure in the compressed air industry. There are other means to measure this though, so let’s discover the difference.

Again, the pressure is a force distributed over an area, the Earth’s atmosphere has pressure, if it didn’t we would all balloon up like the Violet from Willy Wonka, just without eating some prototype gum causing internal pressure. PSIA is a unit of measure that is relative to a full vacuum. It is pounds per square inch absolute (PSIA). The absolute pressure is calculated as the sum of the gauge pressure plus the atmospheric pressure. If you were to travel into space, the atmospheric pressure would be absolute zero which is actually a vacuum. There is nothing pushing from the outside in so the inside pushes out, hence the ballooning.

The atmospheric pressure on earth is based on sea level. This is 14.7 pounds per square inch absolute pressure. This pressure will change along with the weather and the altitude at which the measurement is taken.

So how do we get to the pressure that is displayed on a pressure gauge?  When shown open to room air, my pressure gauge reads zero psi. Well, that is zero psi gauge, this already has the atmosphere showing. It is not showing the Absolute pressure, it is showing the pressure relative to atmospheric conditions. This is going back to the fact that gauge pressure is the summation of absolute pressure and atmospheric conditions, for sea level on earth that is 14.7 psia. So how do we increase this and get the gauge to read higher levels?

We compress the air the gauge is measuring, whether it is using a screw compressor, dual-stage piston compressor, single-cylinder, or any other type of compressor, it is compressing the ambient, atmospheric air. Some materials do not like being compressed. Air, however, reacts well to being compressed and turns into a form of stored energy that gets used throughout industrial facilities.  By compressing the air, we effectively take the air from atmospheric conditions and squeeze it down into a storage tank or piping where it is stored until it is used. Because the air is being compressed you can fit larger volumes (cubic feet or cubic meters) into a smaller area. This is the stored energy, that air that is compressed always wants to expand back out to ambient conditions. Perhaps this video below will help, it shows the GREAT Julius Sumner Miller explaining atmospheric pressure, lack of it, and when you add to it.

Lastly, no matter where you are, there is a scientific unit that can express atmospheric pressure, compressed air pressure, or even lack of pressure which are vacuum levels. To convert between these scientific units, some math calculations are needed. While the video below is no Julius Sumner Miller, it does a great job walking through many of the units we deal with daily here at EXAIR.

 

If you want to discuss pressures, atmospheric pressure, how fast the air expands from your engineered nozzle to atmospheric, why all the moisture in the air compresses with it, and how to keep it out of your process, contact an application engineer and we will be glad to walk through the applications and explanations with you.

Brian Farno
Application Engineer
BrianFarno@EXAIR.com
@EXAIR_BF

1 – Willy Wonka & the Chocolate Factory – Violet Blows Up Like a Blueberry Scene (7/10) | Movieclips, Movieclips, retrieved from https://youtu.be/8Yqw_f26SvM

2 – Lesson 10 – Atmospheric Pressure – Properties of Gases – Demonstrations in Physics,  Julius Sumner Miller, Retrieved from https://www.youtube.com/watch?v=P3qcAZrNC18

3 – Pressure Units and Pressure Unit Conversion Explained, Chem Academy, retrieve from https://www.youtube.com/watch?v=2rNs0VMiHNw

 

Wet-Dry Vacuum Converts Without Tools in 15 Seconds or Less!

In a recent video, I showcased our newest Industrial Housekeeping product, the EasySwitch Wet-Dry Vac. Throughout my years in metalworking as well as homeownership, I have honestly never used a wet-dry vacuum that is this easy to change operating modes from wet to dry or vice versa. So just how easy is it?

EasySwitch Wet-Dry Vac Mode Change Instructions

When writing out instructions on how to do this it takes a total of five steps for either direction. These five steps can easily be completed in less than 15 seconds and best of all, it is tool-free.

When changing over other wet/dry vacuums, whether it is a traditional electric vacuum like you may have at home or another pneumatic industrial vacuum on the market, the switchover process is cumbersome. There are typically fasteners or retainers that are necessary to hold the filters in place, filters can be poor quality and get damaged easily.  Small parts needed to hold filters in place like springs or retainer nuts can easily be lost, hard to manipulate and take additional time changing from liquid to dry modes or vice-versa. With the EasySwitch, the only fastener is a rubber latch that is attached to the filter hatch cover. This means operators can’t lose parts because they are all attached to the EasySwitch Lid. To convert from a dry vacuum to a wet vacuum the steps are simple.

  1. Turn off the compressed air and unlatch the rubber handle. This makes it possible to complete step two.
  2. Lift the filter hatch lid and let it rest on the hinge stop. This is all designed to be robust enough to easily support the weight of the EasySwitch unit as well as the air hose attached to it.
  3. Lift the filter, whether it is the HEPA rated filter or the standard filter, up and out of the lid.
  4. Close the filter hatch lid onto the edge gasket that stays firmly in place.
  5.  Latch the rubber handle/latch back into place and start processing liquid as needed.

That’s it, it takes less than 15 seconds in the video below (see it at 1:15) and I am pretty sure a speedcuber or cup stacker could do it even faster. Don’t believe me, want to test it out for yourself, we honor a 30-day guarantee on stock products. Get the EasySwitch Wet-Dry Vac in your facility and put it through your own rigorous testing. If it doesn’t perform to your liking, let us know and we will arrange for sending it back. Converting the vacuum from dry to wet isn’t the only thing that is fast, we also ship same day on orders for stock products (hint: all EasySwitch vacuums are stock product) received by 3 PM ET that are shipping within the US. (2 PM ET for orders billing and shipping to Canada.)

Brian Farno
Application Engineer
BrianFarno@EXAIR.com
@EXAIR_BF