Line Vacs- Air Operated Conveyors, and Much More

The EXAIR Line Vac is a tried and true device for conveying parts, materials, and waste – with no moving parts. The list of successfully conveyed materials in the application database is far reaching – including plastic pellets, scrap/trim, chips, pills/tablets, shavings, sawdust and granules.

The Line Vacs can be used for more than conveying large amounts of material from A to B. Recently, one of our automation customers found an application for the Line Vac in the design and manufacture of a custom fill machine.  The machine was commissioned to fill small, plastic cups.  To move the cups from the material staging area to the filler processing area, (10) of the 2″ aluminum Line Vacs were used.  Using a sensor to measure the stack height in each tube, the compressed air is triggered on/off to transfer a group of cups over to the filling area.  See photo below-

Line Vac Transporter

Other types of applications that Line Vacs have been used for include pick and place, small space ventilation, fine powder dispersion and light vacuum generation. Another popular use is to integrate into a machining process for waste removal of chips, shavings, and waste removal.

lvburrremoval
1-1/4″ (32mm) Line Vac Mounted to Remove Plastic Shavings and Transport to Waste Container

The Line Vacs come in (3) types- Standard, Light Duty and Heavy Duty.  Also, (3) different end connections are available including smooth bore, threaded, and the new sanitary flanged. Depending on the model type, materials of construction may include aluminum, type 303 and 316 stainless steels, and a hardened alloy.  Special high temperature versions are available with temperature ratings up to 900°F (482°C.)

LVfamily_300x

To discuss your application and how a Line Vac or any other EXAIR Intelligent Compressed Air Product can improve your process, feel free to contact EXAIR, myself, or one of our other Application Engineers. We can help you determine the best solution!

Brian Bergmann
Application Engineer

Send me an email
Find us on the Web 
Like us on Facebook
Twitter: @EXAIR_BB

Threaded Line Vacs: Low Cost Conveyor Uses Ordinary Pipe!

EXAIR’s Threaded Line Vac air operated conveyor takes an ordinary pipe and converts it into a powerful conveying system.  A fast, low cost way to convey items such as pellets, scrap trim, bulk solids, chips, paper, small parts, sawdust, granules, and so much more. The Threaded Line Vac attached easily to plumbing pipe couplers, like PVC or iron, making it easy to build a complete system with parts readily available from your local supply house or hardware store.

The Threaded Line Vac are ideally suited for conveying large volumes of materials over long distances.  Like the standard, smooth bore ended Line Vacs, the unit works by ejecting a small amount of compressed air to produce a vacuum suction on the inlet side and a high output flow from the outlet side.  By using a pressure regulator to control the compressed air supply pressure, the rate of conveyance can be controlled to match the application needs, while minimizing the compressed air usage.

3inTrLVbckls_prHR1670x574

Models are available from 3/8 NPT to 3 NPT with materials of construction of aluminum and types 313 and 316 stainless steels (excellent corrosion resistance.)  High temperature versions of the stainless steel Threaded Line Vacs are available as well, for temperatures up to 900°F.

For those processes requiring the highest rates of conveyance over the longest distances and/or the most abrasive of materials, the Heavy Duty Threaded Line Vac is the right choice.  Designed with the most rugged industrial processes and applications in mind, the special hardened alloy construction helps prevent premature wear that could occur with standard aluminum or stainless steel models, under the harshest of conditions.  The performance has been boosted, to be able to convey more material, over longer distances and higher vertical rises.

HDLV

To select the right model, information regarding these criteria is helpful-

  • Size of parts and bulk density of material being conveyed
  • What size hose, tube, or pipe is desired
  • Target conveyance rate
  • Distance of conveyance, both horizontal and vertical legs
  • Preferred material of construction

For another look, please see the video available that provides more details about the Line Vac family.

If you would like to talk about Line Vacs or any of the EXAIR Intelligent Compressed Air® Products, feel free to contact EXAIR and myself or one of our Application Engineers can help you determine the best solution.

Brian Bergmann
Application Engineer

Send me an email
Find us on the Web 
Like us on Facebook
Twitter: @EXAIR_BB

Oil Removal Filters – Keeping Compressed Air Clean

Compressed air filters help to keep the air clean and condensate free to protect equipment from dust, dirt, pipe scale, oil and water. Even though the compressed air system will typically have a main dryer, additional treatment is often necessary. For this discussion, we will focus on the oil removal process and filter type.

After the compressed air has passed through a particulate filter, the dirt, dust and water droplets have been removed.  Oil that is present is much smaller in size, and mostly passes though the particulate filter.  The installation of a coalescing filter will provide for the removal of the majority of the fine oil aerosols that remain. The coalescing filter works differently than the particulate filters. The compressed air flows from inside to outside through the coalescing filter media. The term ‘coalesce’ means to ‘come together’ or ‘form one mass.’  The process of coalescing filtration is a continuous process where the small aerosols of oil come in contact with fibers of the filter media. As other aerosols are collected, they will join up and ‘come together’ and grow to become an oil droplet, on the downstream or outside surface of the media.  Gravity will then cause the droplet to drain away and fall off the filter element.

9005
Example of a 0.03 Micron Coalescing Oil Removal Filter

Some important information to keep in mind –

  • Change the filter regularly, not just when the differential pressures exceeds recommended limits, typically 5 PSI
  • Coalescing filters will remove solids too, at a higher capture rate due to the fine level of filtration, using a pre-filter for solids will extend the life
  • Oil free compressors do not provide oil free air, as the atmospheric air drawn in for compression contains oil vapors that will cool and condense in the compressed air system.

If you would like to talk about oil removal filters or any of the EXAIR Intelligent Compressed Air® Products, feel free to contact EXAIR and myself or one of our Application Engineers can help you determine the best solution.

Brian Bergmann
Application Engineer

Send me an email
Find us on the Web 
Like us on Facebook
Twitter: @EXAIR_BB

Coast to Coast and Beyond

Recently, I was working with  a customer looking for a Premium Reversible Drum Vac and wanted it shipped to the Northwest Territories of Canada –  which we could do!  It got me to thinking, what are the farthest US state and territory locations EXAIR has shipped to in the North, South, West and East directions.  I ‘scoured’ the records and came up with these.

Furthest North- We have shipped to Prudhoe Bay, Alaska.  Most recently, believe it or not, we shipped a NEMA 4X Cabinet Cooler to an Oil and Natural Gas Exploration Company.  Goes to show that even the coldest environments still have the need to provide cool, clean, dry air to cool and protect electronics in electrical enclosures.

Furthest South – We have shipped to the US Territory of Puerto Rico, city of Santa Isabel.  An Aerospace company needed a strong, laminar blast of air and utilized a 6″ Stainless Steel Air Knife.  An Air Knife offers a quiet, efficient way to clean, dry or cool parts, webs, or conveyors.

Furthest West- We have shipped to the US Territory of Guam.  The local University ordered a model 1111-4 Super Air Nozzle Cluster, for a good strong blast of air flow for a cleaning operation.  The model 1111-4 delivers 3.2 lbs of force, at just 82 dBA of sound. A safe and efficient nozzle for blowoff operations.

Furthest East- We have shipped to Eastport, Maine.  The customer in Eastport ordered a Line Vac and a section of Conveyance Hose.  The Line Vac is a great tool for conveying large volumes of material over long distances, through a standard hose or tube.  The compact design features large throat diameters for maximum throughput capability.

 

It was interesting to look back and see all the places that EXAIR has shipped.  We have customers from all over the globe. If you are outside the of 50 US States and Canada, we have a dedicated team of International Application Engineers that will work with you to select the best EXAIR product for your process and application, and direct you to your local International Distributor.

If you would like to talk about any of the EXAIR Intelligent Compressed Air® Products, feel free to contact EXAIR and myself or one of our Application Engineers can help you determine the best solution.

Brian Bergmann
Application Engineer

Send me an email
Find us on the Web 
Like us on Facebook
Twitter: @EXAIR_BB

Line Vac – Air Operated Conveyors

Convey parts, materials, and waste – with no moving parts!

The Line Vac is a fast, low cost way to convey pellets, scrap trim, textiles, bulk solids, food products, chips, and much more.  Simply connect to a standard hose, tube, or pipe and a powerful in-line conveyor is created.

Available in (4) materials – aluminum, 303 and 316 stainless steels, and a special hardened alloy, and (3) end connection types – NPT threaded, smooth bore, and the new sanitary flanged. Sizes range from 3/8″ up to a 6″. It is certain that an available Line Vac option will meet your process criteria.

For lighter materials and short conveyance distances, the Light Duty model is ideal, and for the most abrasive and heaviest materials over longer distances, the Heavy Duty style is available.

The Line Vacs offer many safety benefits, including eliminating the dangers of lifting heavy sacks and climbing ladders to fill hoppers, and with the 316 stainless steel sanitary flanged Line Vacs, food materials are kept enclosed and and separated and provides ease of cleaning.

Check out the video by clicking the photo below

Capture

The Line Vac works by having a small amount of compressed air injected through directed nozzles to produce a vacuum on one end and high output air flow on the other, with instantaneous response.  By using a pressure regulator, available as part of a kit or separately, the flow of the material transfer can be easily controlled. No moving parts or electricity assures maintenance free operation!

lvmatrix
Trim Scrap Removal

Conveyance rates are determined by the material bulk density, typical particle size, total distance of conveyance, including vertical rise, and the targeted transfer rate.  An EXAIR Application Engineer can assist you, and with the above information, recommend the right size and type of Line Vac to meet the desired results.

All catalog models are in stock and we ship same day with an order received by 3 pm EDT in the US and 2 pm EDT for orders shipping to Canada.

Our team of engineers can design a special Line Vac to meet many applications special requirements, from special materials such as PVC and PVDF to special end connections such as pipe flanges and barbed hose connections.  Let us know the special requirements of your process and we’ll design a solution.

Special Flanged LV
This special 3/4″ Line Vac was designed to evacuate fumes from a silicone wafer etching operation

To go with the Line Vac, we can provide a reinforced, heavy wall, clear PVC conveyance hose in lengths up to 50′.  Additionally, the Line Vac Drum Cover is a fine mesh, non-woven cover built to fit on the top of a 30 or 55 gallon drum.  It is designed to contain the material to the drum and allow the air from the Line Vac to escape.

6850drumcover
Drum Cover, for 30 and 55 Gallon Drums

If you have questions regarding the Line Vac, or would like to talk about 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

Send me an email
Find us on the Web 
Like us on Facebook
Twitter: @EXAIR_BB

Creative Uses for the Line Vac Air Operated Conveyors

Last week a customer called in looking for some help in solving a minor issue in the plant. The customer is a specialist in the filament winding business making all types of products from many types of fibers, such as Polyester, Nylon, Nomex®, PTFE and Kevlar®.

At the end of a run, there will be a small amount of thread left on several bobbins.   There is not enough thread to save for a future run, and so the customer has to strip the remaining thread off, to be able to reuse the bobbin.

I remembered that an EXAIR Application Engineer had done some testing on thread, using a Line Vac to pull and unwind a spool. See here for that demonstration.

The customer sent me the below photo, helping us to visualize the application better, and then went even further by shipping a couple of sample bobbins with some thread still remaining.

After running a few tests, it was determined that the smallest Line Vac available , the model 6078 – 3/8″ Aluminum Line Vac, produced the fastest results due to the narrow throat diameter in conjunction with the thin thread.  A brief demonstration of the test can be found below.

Using just 5.6 SCFM at 80 PSIG of compressed air, the Line Vac quickly unwound the bobbin, providing a simple, cost-effective way to automate what had been a tedious manual process.

The Line Vac conveyor are ideal for moving large volumes of material over long distances, using a small amount of compressed air. The material flow rate is easily controlled by use of a pressure regulator.  No moving parts or electricity assures maintenance free operation.  EXAIR offers the Line Vac in sizes from 3/8″ up to 5″ in diameter, in materials including aluminum, Type 303 and Type 316 Stainless Steels, and a Heavy Duty model with hardened alloy construction.

To discuss your application and how a Line Vac or another EXAIR Intelligent Compressed Air Product can help your process, feel free to contact EXAIR and one of our Application Engineers can help you determine the best solution.

Brian Bergmann
Application Engineer

Send me an email
Find us on the Web
Like us on Facebook
Twitter: @EXAIR_BB

Another “Bucket And Ladder” Operation, Foiled By The Line Vac

Let me start by saying that EXAIR Corporation has nothing against buckets. Or ladders. We use them both here for a variety of tasks, and are very satisfied with them. But when they’re used together…that’s where we’re going to take exception. And we’re not the only ones.

I had the pleasure of speaking to an expert technician with a company that provides world class water recycling equipment & services. They use our Model 140200 2″ NPT Threaded Aluminum Line Vacs to move bentonite clay (an amazingly versatile purification & absorption media) from 50 lb bags into a hopper. It is then dispersed into a holding tank of oily water, where it removes the pollutants and impurities, allowing for clean recycling.  And, since they no longer have to carry it up a ladder and pour it in, it’s also safer and more efficient.

Model 140200 2" NPT Aluminum Threaded Line Vac moves bentonite clay into water recycling tank.
Model 140200 2″ NPT Aluminum Threaded Line Vac moves bentonite clay into water recycling tank.

EXAIR Corporation is committed to being proactive about the way we impact the environment. Our Sustainability Plan details the way we do this in regards to our responsible consumption of resources, our conscientious waste recycling measures, and the comprehensive impact of our products…everything from materials & design, to their efficient usage, to packaging. So, when our products are used in  application geared toward like-minded goals, it’s a win-win-win. For EXAIR, our customers, and the environment.

This is one of many ways that EXAIR’s diverse line of compressed air products are not only making processes more efficient, but making the world a better place through dedication to being “clean and green.” If you’d like to know more, please give me a call.

Russ Bowman
Application Engineer
Find us on the Web
Follow me on Twitter
Like us on Facebook