Air Operated Conveyors for Dense and Abrasive Materials

Heavy Duty Line Vac Family

As an Application Engineer, I get the pleasure to speak to many companies about trying to find a simple, long-lasting, powerful but quiet type of transfer systems.  They have operators that climb steps to dump bags of material in hoppers above.  Or they need a compact way to remove scrap from your process.  Or they have budgetary constraints to convey material from point A to point B.  If your company had to tackle any of these issues, EXAIR can help you.  We manufacture Air Operated Conveyors that do not have any moving parts, very compact in design, and have a high throughput capacity.  They can attach easily to standard hoses, pipes, or sanitary flanges.   These inexpensive conveyors are designed to make conveyance safer and ergonomically better for your operators.  EXAIR calls this product line, Line Vacs™.

The Line Vacs use a small amount of compressed air to generate a vacuum by a Venturi effect.  The unique design generates a high velocity to create a powerful vacuum on one side.  Once the product reaches the throat area of the Line Vac, the compressed air will carry the product the rest of the way.  We can reach horizontal distances up to 100 feet (30 meters) and vertical heights up to 20 feet (6 meters).  EXAIR manufactures a variety of Line Vacs in different sizes, styles, and materials.  In this blog, I will cover our most powerful and abrasion resistant type, the Heavy Duty Line Vacs.

Heavy Duty Line Vac Kit

The Heavy Duty Line Vacs are engineered to move abrasive materials with increased conveyance rate.  They range from ¾” O.D. standpipes as our smallest up to 3” O.D. standpipes for hose connections.  The construction is made from a hardened alloy to resist wear from abrasive bulk products like steel parts, sand, glass, ceramic, etc.  The Heavy Duty Line Vac can create a high vacuum level to pick up heavier objects as well as conveying larger volume of material.  If purchased as a kit, the Line Vac will come with a filter, regulator, and a mounting bracket.  This adds overall value in mounting, controlling, and protecting the Line Vac for years to come.  This simple device has no moving parts and is a great product to use in rugged industrial applications.  You will not have to worry about any motors or bearing prematurely wearing out.

If you need to convey heavy materials like steel shot or abrasive products, the Heavy Duty Line Vac could be a blessing for you.  Not only can they transfer material safely and quickly, but they also will ergonomically help in saving the backs and knees of your operators.  For our U.S. and Canadian customers, we are running a promotional ad.  You will receive a 2” Flat Super Air Nozzle, a $72.00 value, for free from now until the end of October 2020 with a qualified purchase online.  If you would like to discuss your conveying application further, please contact an Application Engineer at EXAIR.  We may have a solution for you.

John Ball
Application Engineer

Email: johnball@exair.com
Twitter: @EXAIR_jb

EXAIR Operational Status re: COVID-19 Coronavirus – update 04/03/2020

To all of our valued partners-

The US is just entering the most crucial phase of this outbreak, if the lessons of other countries are any guide.  Many of our distributor partners around the world have told us that they are facing social and business restrictions for the next 2-4 weeks as well.

The state of Ohio issued an amended order yesterday requiring most people to stay at home except for exempt activities through May 1st, 2020.  In large part, it simply extends the original stay at home order that was set to expire on Monday, April 6th.

After reading the amended order, EXAIR continues to be exempt from it as we were from the original order.  EXAIR is involved in nearly every industry listed by the Department of Homeland Security as critical industries, and those guidelines were part of the basis for the details of the order by the state of Ohio.

Many industries that we support like food, pharmaceutical, medical equipment and the like are absolutely critical right now.  Just in the past week, we have had orders and requests for technical help from customers making surgical masks, face shields and neutralizing contamination on personnel when entering a building.  At least one long-standing customer is involved with making COVID-19 test kits.  This is real and it affects all of us.

If they need us, we need to be there for them.  The Governor’s press conferences have stressed how important it is for everyone to keep supply chains moving, especially for critical industries.  EXAIR is part of that chain and will continue to do our part to the best of our collective abilities and we know our distributors around the world will continue to do the same.  Anything we can do to help with this crisis is worth doing.

At the same time, we take our responsibility to try to keep our employees healthy and safe very seriously.  We have modified our operations significantly in order to remain open to serve those who need us in a responsible manner.

  • We have divided our workforce into two different shifts, with another group working remotely.
  • Our two on-premises shifts are not in our facility at the same time
  • Common areas of our facility are sanitized between shifts and again at night
  • Personal work spaces are sanitized at the end of each shift
  • Our workstations are spread out to make sure we observe social distancing
  • We are screening all employee temperatures every day before their shifts

EXAIR operations will remain ongoing for the foreseeable future unless local conditions or government mandates require other actions.  As always, we will keep you up to date if those events occur.

Take care of yourselves and each other.

Bryan Peters

President
EXAIR Corporation

Better Understand Your Blowoff Process with EXAIR’s FREE Efficiency Lab

panoramic view
The EXAIR Efficiency Lab

Many customers may not have the means to test the air consumption of their blowoff solutions. With compressed air being the most expensive utility in a manufacturing facility, it’s important to identify places where you can save money on your overall operating costs. EXAIR manufacturers a wide variety of products intended to help you reduce your compressed air usage. If you’re not able to accurately measure the consumption in your own shop, we invite you to send the products into EXAIR for testing. With EXAIR’s Award Winning Efficiency Lab, just simply contact an Application Engineer, box them up and send them to our warehouse in Cincinnati, Ohio.

EXAIR Efficiency Lab

Once we receive it, our engineers will complete some in-depth testing to determine the compressed air consumption, sound level, and force that your current solution provides. With this information, we’ll be able to compare it to an EXAIR Engineered Solution. This way we ensure that you receive the best, safest solution possible also capable of saving money through reduced air consumption and improved efficiency.  We’ll send you back a comprehensive report that’ll help you to make the best decision for your company.

I’ve been recently working with a customer that sent in one of the nozzles they’re using across all their CNC machines. They wanted us to test it out and see if we’re able to offer them something that could reduce their overall compressed air usage. The nozzle was one of the cheap plastic varieties and was attached to a commonly used modular hose. This type of modular hose is not designed for operating under high pressures. These hoses are more suitable for liquid coolant or air that is at or below atmospheric pressure.

IMG_7486
Inefficient and unsafe plastic nozzle

After testing, we found that at 80 psig the nozzle consumed 3.85 SCFM and produced a force of 1.92 oz. We also noticed that after 60 psig, the nozzle began to leak due to a poor seal where the nozzle met the brass hex. The EXAIR nozzle most suitable to replace this was the 1108SS. At just 2.5 SCFM at 80 psig, replacing the plastic nozzle with an engineered solution saves them 35% of their overall consumption for this blowoff. With close to 1000 of these nozzles in operation, that adds up quickly!!

In addition to increasing efficiency, replacing these nozzles also greatly increases overall worker safety. The sound level is reduced from 73 dBA to just 58 dBA and EXAIR’s nozzles also adhere to OSHA 1910.242(b). The plastic nozzles could be dead-ended, posing a hazard that can result in costly fines. These fines are assessed per infraction, so having multiple non-compliant nozzles can easily get very expensive if you’re subject to an unannounced visit by an OSHA inspector.

If you think you may have an opportunity to improve upon your existing blowoff methods, give us a call. We’ll be happy to take a closer look and have you send the product back to EXAIR for a quick trial in our Efficiency Lab. You’ll be glad you did!

Tyler Daniel
Application Engineer
E-mal: TylerDaniel@exair.com
Twitter: @EXAIR_TD