Light Duty Line Vac For Paper Trim Removal

Today I worked with a customer that manufactures a wide variety of material handling equipment including coil unwinders.  The engineer was calling because there was a special project for a coil unwinder that could handle a waste piece of paper trim.  As the metal coil is being unwound for delivery to a metal processing machine, the protective paper is pulled off and was to be collected into a waste receptacle for easy handling and disposal/recycling.  The engineer was hoping to replicate an existing system that used a hybrid blower system, with an extra compressed air nozzle, but in a simpler form.

Coil Unwinder

We proposed the use of the 4″ Light Duty Line Vac– shown below.130400The Light Duty Line Vacs offer an effective way to convey small and light materials a short distance. Like the standard Line Vac, the Light Duty Line Vac converts an ordinary hose or tube into a  conveyor for scrap, trim, and bulk materials.

When the process involves moving low volumes of materials over short distances, the Light Duty Line Vac is a great choice. The simplified (2) piece design offers effective conveying at a lower cost. As an added plus, the compressed air consumption is lowered to levels commensurate with handling the lighter materials, at lower volumes and short distances.  Using a pressure regulator to control the supply air allows for tuning of the transfer rate, and keeps air usage to the minimum amount needed.

The Light Duty Line Vacs are available with inlet/outlet diameters from 3/4″ up to 6″.  With no moving parts, maintenance free operation is assured.

ldlvsz
Light Duty Line Vacs – Available in 3/4″, 1″, 1.25″, 1.5″, 2″, 3″, 4″ and 6″ Diameters. All in Stock!

For other larger materials, higher transfer rates, corrosive environments, or abrasive materials, take a look at the other EXAIR Line Vac offerings including the aluminum, 303 and 316 stainless standard Line Vacs, the aluminum, 303 and 316 stainless steel Threaded Line Vacs, high temperature models, standard and threaded Heavy Duty Line Vacs, and lastly the new Sanitary Flanged 316 stainless steel type.

If you would like to talk about Light Duty 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

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

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

Compressed Air Uses In Industry

From pneumatic hand tools like impact wrenches or nail guns to larger scale industrial applications like stamping presses, the use of compressed air can be found in almost any industry. In fact, it is often referred to as a “fourth utility” next to water, gas and electric.

Compressed air is used in virtually every industry!

 

Take for example in construction, workers will use a pneumatic riveter to join steel framing because of the power generated by the tool over an electrically powered device, not to mention it provides for a safer operation by removing an electrical hazard. Many companies use compressed air operated diaphragm pumps or air motor driven pumps to move expensive or viscous liquid from one location to another. These types of pumps are self priming drawing the liquid in and provide positive displacement meaning they fill and empty the liquid chamber with the same amount of liquid through a common inlet and outlet.

Amusement parks have used compressed air in some capacity in the operation of thrill rides like roller coasters or to enhance the effect of certain attractions. Compressed air can be found in hospitals where it is used for specialized breathing treatments or to power surgical instruments in an operating room. Educational facilities use compressed air for laboratory testing. You can even find compressed air in the tires on your car. Basically, when you think about it, compressed air is being used just about anywhere.

Here at EXAIR, we manufacture Intelligent Compressed Air Products to help improve the efficiency in a wide variety of industrial operations. Whether you are looking to coat a surface with an atomized mist of liquid, conserve compressed air use and energy, cool an electrical enclosure, convey parts or dry material from one location to another or clean a conveyor belt or web, chances are we have a product that will fit your specific need.

EXAIR has been providing engineered solutions since 1983.

 

To discuss your particular application or for help selecting the best product, contact an application engineer at 800-903-9247 for assistance.

Justin Nicholl
Application Engineer
justinnicholl@exair.com
@EXAIR_JN

 

Compressed Air Valves image courtesy of Shane Gorski via creative commons license.

Line Vac Alleviates Back Breaking Work in Drying Cocoa Beans

An overseas plant had a large operation processing cocoa beans.  They would pick the pods off the cocoa trees, remove the beans from the pod, and place them on a large screened table to dry in the sun.  The drying process may seem primitive, but with the natural energy of the sun, it is free.  To completely remove the moisture from the cocoa beans, they would have to keep the beans exposed to the sun for close to a week.  As a daily operation, the workers would have to carry beans to and from a storage container by shovel and bucket.  In the morning when the sun was rising, they would shovel the beans from the storage container and spread them onto the table.  Before evening came, they would shovel the beans from the table back into the storage containers.  This back and forth was very hard work and time consuming.

In discussing their setup, the storage containers were a maximum of 10 meters away from the drying tables.  The bulk density of cocoa beans are roughly 980 kg/m^3.  So, with 19L buckets used to carry the beans, each one would weigh a bit over 18Kg each.  The operators would carry two buckets, multiple times during the day to load the tables (reference the photo below).  Then they would remove the beans in the evening to put them back into the storage containers.  The reason that they had to store the cocoa beans at night was because of dew.  When the temperature drops during the night, dew would settle onto the beans and rehydrate them.  So, to keep the beans drying at a moderate rate, they had to store them during the night.  This was very hard work on the workers’ backs, and they were also losing sunlight hours as this was a long tedious operation.  In trying to find a better solution to improve their operation, they searched and found the EXAIR Air Operated Conveyors.

Cocoa beans being dried
Cocoa beans being dried

The EXAIR Line Vac fit very well into their operation. I suggested the model 152200 Heavy Duty Line Vac Kit as this unit has our highest conveyance rate.  It can convey the cocoa beans at a rate of nearly 900kg/hr.  It is very compact and easy to use.  This plantation placed a 10 meter length of hose in between the storage containers and the drying tables.  They attached a 1 meter section of hose to the vacuum end of the Heavy Duty Line Vac.  Because the Line Vac pushes the product much better than it pulls, we recommend the vacuum hose to be 1 meter or less for optimum conveyance.  So, in the morning, they would go to the storage container and attach the 10 meter hose to the exhaust end of the Line Vac.  They would open the compressed air line to the Line Vac and watch the cocoa beans being conveyed to the drying tables.  In the evening, they would reverse the procedure and attach the Line Vac to the 10 meter hose near the drying tables.  They would watch the beans being conveyed back into the storage containers.  Not only did this save the backs of their workers, it also increased the amount of drying time.  With their new operation, the cocoa beans now had an additional 1 hour of drying each day in the sun.  This helped tremendously in getting the dried cocoa beans to the processing factory more quickly.

Line Vacs can convey many things.
Line Vacs can convey many things.

If your company has a strenuous operation in moving dry bulk products like this, you may want to consider an EXAIR Air Operated Conveyor. They are very reliable, easy to use, and long lasting.  If you need help in finding the correct model for your application, please contact us today.

John Ball
Application Engineer
Email: johnball@exair.com
Twitter: @EXAIR_jb

Air Amplifier is Useful as an Air Conveyor for Light Material

I had a customer that was wanting to reduce the footprint and the noise level of his machine. His equipment trimmed medical capsule shells, 40 pieces at a time. The capsule shells were dropped into a chute and transferred to another location. The capsules weighed 150 milligram each, and they had to be move 15 feet (4.5 meters) horizontally and 3.3 feet (1 meter) high. The machine contained its own air compressor and blower system. The air compressor was used to operate air cylinders and other pneumatic equipment. A 5HP blower system was used to transfer the capsules. The blower motor, ducting, and cyclone separator was very bulky and noisy. They asked me if EXAIR could supply a product that would use very little compressed air to transfer the capsules without creating excessive noise.

Adjustable Air Amplifier
Adjustable Air Amplifier

I accepted the challenge. The customer only had 12 scfm (20 M^3/hr) of compressed air that was usable. In looking at my options, I had to use a product with a large amplification ratio. (Parts of room air vs. Parts of compressed air). The best candidate was an EXAIR Air Amplifier with a 20:1 amplification ratio. The capsules are light weight, and the distance was not very far which made this application a suitable one for the Air Amplifier. I decided to do a trial test using the model 6032 stainless steel Adjustable Air Amplifier (Stainless Steel had to be used to be compliant). In my trial, I adjusted the Air Amplifier to the desired flow rate. I was able to move the capsules the complete distance. I then reduced the flow to see if I was able to complete the task. I was able to consistently mover the capsules at a compressed air flow rate of 7 scfm (12 M^3/hr).

In some situations, we can run trial tests to make sure that the product can meet the specification of the customer. This customer was able to remove the blower system, reduce the foot print of his design, and more importantly reduce the amount of noise. If you have an unknown situation and you would like for an Application Engineer to do a trial test, you can contact us here.

John Ball
Application Engineer
Email: johnball@exair.com
Twitter: twitter.com/exair_jb

Air Conveyor Improves Candy Bar Recovery

This week I worked with a candy company who was looking to improve their overflow product recovery. When their bulk bagging machine is inoperable, the wrapped candy bars are sent to an overflow container where they are manually scooped out by an operator. This process was causing damage to the bars and wrappers, as well as presenting an ergonomic hazard to the employee, so they called EXAIR for a solution.

I recommended using our Line Vac Air Operated Conveyor. The Line Vac  connects to hose or pipe to create an inline conveyor and is able to move large amounts of material over long distances, requires no electricity, has no moving parts, and provides maintenance free operation, making it the ideal choice for this application.

After discussing the details with the customer, they were concerned that the candy bars and wrappers, getting picked up by the airflow and transported through the hose, might continue to be damaged. I advised that by using a pressure regulator they could control the vacuum/conveying rate by increasing or decreasing the supply pressure, but their concern remained. I then offered to perform a conveyance test at our facility, if they were willing to send product. The customer agreed and was kind enough to send some of the candy, with some extra bags inside for the staff here at EXAIR. (Which is pretty awesome! I mean, FREE candy? Who doesn’t love that?!)

With a wide range of sizes and materials of construction, we've got your solution.  Call us.
Available in 11 sizes and different materials to meet many application requirements. Line Vacs have smooth ends for connecting hose with a clamp or threaded ends to connect with standard pipe sizes.

Our set up included our 3″ Line Vac with a 10′ section of 3” conveyance hose on the vacuum side and a horizontal conveyance run of approximately 35′, with a 13′ vertical run into a soft sided hopper. We were successful in conveying approximately 9.9 lbs. per minute, when operating at 80 PSIG, with no broken candy bars and no damage to the wrappers. We also determined that 40 PSIG inlet pressure was the lowest they could run the operation, if they were okay with a lower convey rate.

We provided the results to the customer and included a short video of our testing. Intrigued by the results, they are now looking in to other possible applications throughout their facility.

To discuss your Line Vac application, please do not hesitate to contact us for assistance.

Justin Nicholl
Application Engineer
justinnicholl@exair.com
@EXAIR_JN