EXAIR E-Vac Vacuum Generator Accessories: Overview

Vacuum systems are becoming more and more prevalent within manufacturing day by day. Vacuum powered lifts can make it easy to lift and move small objects like tiny coins to heavy steel plates. Vacuum chucks hold work pieces that could be marred by jaws or vises. And sealed vessels can be pressure tested or tested for leaks by pulling a vacuum on them. It’s pretty simple to pick out which vacuum generator that you need, but what about the accessories? There are so many different accessories to choose from such as mufflers, suction cups, hose, valves, and connections. The following is a quick overview of the different accessories that you can get from EXAIR along with your E-Vac vacuum generator.

Vacuum cups for E-Vac generators

Suction cups are a very common accessory that you need when using a vacuum system. Vacuum cups allow one to create a seal on the surface of the object that you wish to pick up and is what allows the system to lift objects. We offer four different kinds of vacuum cups to choose from stock; available are small and large Round, Oval, and Bellow styles. Round cups are more suited to being used on smooth, flat surfaces. Oval cups provide the most vacuum due to the larger surface area making them ideal for lifting heavy loads. The Bellows style is best suited for textured or uneven surfaces; the folds provide a collapsible area that allows the cup to compress and seal on an uneven surface.

EXAIR’s Standard and Straight Through Muffler

Next up is the mufflers; they muffle the sound generated by the E-Vac and quiet a working vacuum generator. There are two different types of mufflers from EXAIR that are available; these are the Standard and the straight through mufflers. The Standard muffler is designed to be attached to the discharge end of an in-line E-Vac and has a closed end. These are best suited for applications that are free from dust and debris. The straight through muffler is open all the way through and are more suited to applications were dirt, dust and debris is present. The straight through style also offers the best sound level reduction, up to 26 dBA.

Lastly the E-Vacs have an NPT threaded connection that will allow for a suitable connector to be properly installed. From here different connectors can be used to attach the various amounts of vacuum cups. The connectors provided are Push-In Connector Type Fittings of assorted styles available with our polyurethane tubing to make the installation and plumbing a cinch.

If you have any questions or want more information on EXAIR’s E-Vacs and their Accessories. 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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Ultraviolet Curing and Vortex Tube Cooling

Recently EXAIR worked on a project to cool down parts that were using Ultraviolet (UV) light to cure a surface coating. Ultraviolet curing is a photochemical process that uses UV light to cure/dry certain inks, coatings, and adhesives. Due to the fact that UV light produces a good amount of heat the product would heat up during the curing process and create issues for them down the line which slowed down production in order let them cool. The simple solution to this was the use of the vortex tube to blow on the product to cool it down during the process. By doing so they were able cool the product down to a suitable temperature for the process to speed up.

EXAIR’s Small, Medium, and Large Vortex Tubes


EXAIR’s Vortex Tubes are great for cooling down surfaces to temperatures below ambient thanks to the cold air stream that is produced from the vortex tube. Vortex tubes use a source of compressed air to create both a hot and cold stream of air simultaneously which allows the unit to be used for cooling but also heating applications. The amount of air flow coming out of either end of the Vortex Tube can be controlled; by doing so one can adjust the temperature of the air streams coming out.

There are numerous methods to distribute the cold air flow from a lone, or a series of, Vortex Tubes.

Although the main application for the Vortex Tube is to be used for cooling, it is occasionally used to heat as well. Heating applications are uncommon, but they are still possible. Since a vortex tube creates a cold and hot stream of air; by controlling what the fraction of air is flowing out of the cold end you can create a temperature rise (a rise from the starting air temp) of up to 195F! Now that is hot.

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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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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Rotary Air Compressors: How Do They Work?

Ingersoll Rand Rotary Screw Compressor

One thing that is found in virtually every industrial environment is an air compressor. Some uses for the compressed air generated are: powering pneumatic tools, packaging, automation equipment, conveyors, control systems, and various others. Pneumatic tools are favored because they tend to be smaller and more lightweight than electric tools, offer infinitely variable speed and torque, and can be safer than the hazards associated with electrical devices. In order to power these devices, compressed air must be generated.

There are two main categories of air compressors: positive-displacement and dynamic. In a positive-displacement type, a given quantity of air is trapped in a compression chamber. The volume of which it occupies is mechanically reduced (squished), causing a corresponding rise in pressure. In a dynamic compressor, velocity energy is imparted to continuously flowing air by a means of impellers rotating at a very high speed. The velocity energy is then converted into pressure energy. We’ve discussed the different styles of air compressors here on the EXAIR Blog in the past. Today I’d like to highlight the rotary compressors, one of the positive-displacement types of compressors.

Positive-displacement compressors are broken into two categories: reciprocating and rotary. The rotary compressors are available in lubricant-injected or lubricant-free varieties. Both styles utilize two inter-meshing rotors that have an inlet port at one end and a discharge port at the other. Air flows through the inlet port and is trapped between the lobes and the stator. As the rotation continues, the point inter-meshing begins to move along the length of the rotors. This reduces the space that is occupied by the air, resulting in an increase in pressure.

In the lubricant-injected varieties, the compression chamber is lubricated between the inter-meshing rotors and bearings. This lubricant protects the inter-meshing rotors and associated bearings. It eliminates most of the heat caused by compression and acts as a seal between the meshing rotors and between the rotor and stator. Some advantages of the lubricant-injected rotary compressor include a compact size, relatively low initial cost, vibration free operation, and simple routine maintenance (replacing lubricant and filter changes). Some drawbacks to this style of compressor include lower efficiency when compared with water-cooled reciprocating compressors, lubricant carry over must be removed from the air supply with a coalescing filter, and varying efficiency depending on the control mode used.

In the lubricant-free varieties, the inter-meshing rotors have very tight tolerances and are not allowed to touch. Since there is no fluid to remove the heat of compression, they typically have two stages of compression with an inter-cooler between and an after cooler after the second stage. Lubricant-free compressors are beneficial as they supply clean, oil-free compressed air. They are, however, more expensive and less efficient to operate than the lubricant-injected variety.

Each of these compressors can deliver air to your Intelligent Compressed Air Products. If you’re looking to reduce your compressed air consumption and increase the safety of your processes contact an EXAIR Application Engineer today. We’ll be happy to discuss the options with you and make sure you’re getting the most out of your compressed air usage.

Tyler Daniel
Application Engineer
E-mail: TylerDaniel@EXAIR.com
Twitter: @EXAIR_TD




Photo courtesy of Ingersoll Rand CC BY 3.0, https://en.wikipedia.org/w/index.php?curid=32093890