Some applications such as blowing chips or debris out of a pipe or blind hole, it may not be possible to blow forward. The pipe may be too long, making it impossible to push the debris all the way down the pipe or the other end of the pipe may not be open. In either of these scenarios, the Back Blow Nozzle is the right tool for the job. An array of holes around the diameter of the Back Blow Nozzles provides a powerful 360° airflow pattern that will clear out any leftover coolant or chips from the machining process.
EXAIR has three different size Back Blow Nozzles; the 1004SS (M4 x .5), the 1006SS (1/4 NPT), and the 1008SS (1” NPT). The 1004SS is recommended for use on pipes as small as ¼” and up to 1”. The 1006SS can be used for a wide range of pipe sizes, from 7/8” up to 4”. The 1008SS nozzle offers the greatest overall force for stubborn or sticky materials stuck to the inside diameter of the pipe. This nozzle is suitable for use in pipes ranging from 2”-16”. As the Back Blow Nozzle will be blowing chips and debris back out of the pipe towards the operator, it is always recommended that a Chip Shield is used. The strong polycarbonate Chip Shield will keep them safe from flying debris and keep you in compliance with OSHA directive 1910.242(b).
All of EXAIR’s Back Blow Nozzles are available with extensions. For the 1004SS we have extensions from 6”-36”, and from 12”-72” for the 1006SS and 1008SS. The Back Blow Nozzle can also be installed on our VariBlast, Soft Grip, Heavy Duty, and Super Blast Safety Air Guns. With such a wide range of available sizes and configurations, we can tackle just about any internal pipe cleaning application. If you have a process in your facility that may benefit from the use of one of these nozzles, give us a call and get one on order today!
EXAIR has been manufacturing Intelligent Compressed Air® products since 1983. In the beginning, the Standard Air Knives and Full Flow Air Knives were very effective at that time. But as leaders in this market, EXAIR did not want to stop there. We were able to engineer a more efficient, more powerful, and much safer air knife, the Super Air Knife. In this blog, I will discuss the features and benefits that the Super Air Knives can offer.
Bernoulli’s principle explains how a high velocity fluid can generate a low pressure. The Super Air Knife creates that high velocity air stream to produce a low pressure above and below the opening to entrain ambient air. What does this mean for you? It will save you much money by using less compressed air. The mass of the free ambient air is added into the air stream to give a strong blowing force. The Super Air Knife has an amplification ratio of 40:1. For every 1 part of compressed air, 40 parts of ambient air is drawn into the blowing air stream. Ambient air is free, and compressed air is definitely not. EXAIR was able to engineer a design to use the Bernoulli’s principle to make one of the most efficient air knives in the market place.
As a benefit, they blow a laminar air stream which reduces noise levels and create a consistent force along the entire length. An even force will give you tighter control for blowing applications which will cut compressed air usage unlike the inconsistent and turbulent air flows caused by drilled pipes, manifolds of nozzles or blower-type systems. Some other interesting features for the Super Air Knives are that they have a compact design to fit into tight places for blowing and cooling. The footprint is very small as compared to blower-air knife systems. They do not have any moving parts to wear or maintenance to do. They only need clean compressed air to work.
What else makes the Super Air Knives unchallenged? We manufacture and stock the widest range in lengths and materials. To start, Super Air Knives range from 3” to 108” (76mm to 2,743mm) in three different materials; aluminum, 303 stainless steel, and 316/316L stainless steel. There is no-one else in this industry that can manufacture to those lengths. EXAIR also offers Super Air Knives in PVDF material with Hastelloy hardware for chemical resistant applications from 3” to 54” (76mm to 1,372mm). Depending on the temperature requirement, chemical resistance, OSHA and FDA regulations, or application details, we probably will have one on the shelf for you.
If EXAIR does not stock it, we make special air knives in different lengths and materials to best fit your application. In some confined areas, the Super Air Knives may have to fit inside a specific width or footprint. Well, EXAIR can make it to that specific length in a short period. We have also made special designed Air Knives that were very thin, curved, double-sided, and with distinct mounting holes to easily attach to specific machines or operations. And if you need a special material, like the PVC Super Air Knife below, we can do that. EXAIR has a team of Application Engineers that can help you with the design, configuration, and details for special types of Super Air Knives.
We also offer the Super Air Knives in kits as a more complete system. The kit includes a filter, regulator and a Shim Set. The filter removes the debris and water from the compressed air line to optimize the performance of the air knife as well as keeping your product clean. The regulator is used to make the “fine” adjustment to the blowing force while the shim set is used as the “coarse” adjustment. EXAIR sells this kit as one model number for simple ordering, and the accessories are properly sized to not hinder the performance of the Super Air Knife.
With the today’s cost to make compressed air, it is important to do it as efficiently as possible. The EXAIR Super Air Knives are the most efficient as well as safe and effective. And if you need a specific design for your application, you can contact an Application Engineer at EXAIR. We will be glad to help you.
Conveyor systems come in many shapes, sizes, and configurations. They can be run at different speeds, and are made of various materials, depending what they’re carrying, and why they’re carrying it. And sometimes, they’re hilarious:
If you’re looking to move solids, in bulk, through pipe, there’s not a simpler way to do it than with an EXAIR Threaded Line Vac. Like our ‘standard’ Line Vacs, they use compressed air to generate a powerful vacuum flow to get air behind the pieces and carry them along:
But, while the ‘standard’ Line Vacs are made for use with Conveyance Hose, the Threaded Line Vacs have male NPT threads so you can pipe them in line. We have a range of options, depending on the nature of your applications:
Sizes: 3/8 NPT to 3 NPT.
Materials: aluminum, 303SS, 316SS, and hardened alloy.
Environment: the materials of construction listed above may be important because of the nature of the product being conveyed, but they also have different temperature ratings. Our Stainless Steel Line Vacs also come in a High Temperature design, in case the material – or the environment – is particularly hot:
Aluminum: 275°F (135°C)
Heavy Duty Hardened Alloy: 400°F (204°C)
303 or 316SS: 400°F (204°C)
High Temp 303 or 316SS: 900°F (482°C)
If you’ve got a conveyor application you’d like to discuss, give me a call.
Russ Bowman Application Engineer EXAIR Corporation Visit us on the Web Follow me on Twitter Like us on Facebook
In 2012, the National Association of Manufacturers organized an effort to proclaim the first Friday in October (hey, that’s today!) as Manufacturing Day. According to the Advanced Manufacturing National Program Office (a division of NIST, the National Institute of Standards & Testing,) the purpose of MFG Day is “to raise awareness among students, parents, educators and the general public about modern manufacturing and the rewarding careers available.”
Today is kind of a big deal around here. Not only is EXAIR Corporation a manufacturer, but many of the companies that use our products are as well. A lot of us have a rich story, woven into the cloth of the history of American manufacturing (which, in turn, is woven into the larger cloth of American history.) Have you heard the one about the motivated inventor with an idea to make innovative products who started an operation out of his home that, with inspired direction & vision, became a worldwide leader in their industry?
Yeah; that’s us. Today, we’re honoring Roy Sweeney’s legacy (he founded the company in October 1983,) and celebrating MFG Day, by publishing a new Case Study, proving out the benefits of the use of EXAIR Intelligent Compressed Air Products in regard to the monetary savings associated with the reduction in compressed air use, and the noise level reduction from the implementation of our engineered products.
A roll forming operation used to blow off their product with a combination of loud and inefficient devices: copper tubing and modular flexible hose which is designed primarily for machine tool coolant, but often misapplied for use with compressed air.
It worked just fine, but an engineering study noted it as a potential wasteful use of compressed air. That’s when they called us.
Compressed air consumption dropped by more than half, from 190 SCFM to 86.8 SCFM…an annual savings of over $3,200.00. All for an investment of $654.00 (2020 pricing) for those engineered Air Nozzles, Stay Set Hoses, and Magnetic Bases. That means they’ll have paid for themselves in just under two months.
In addition to that, for participation in this Case Study, we’re giving them a generous credit on their order. Happy Manufacturing Day!
Last but certainly not least, this reduction in compressed air usage decreases the load on their air compressors, reducing the electrical power consumed. Product impact, along with our own consumption of resources and waste recycling, is a key component of EXAIR Corporation’s Sustainability Plan. We’re making the world a better place, by making products that make the world a better place, using methods that make the world a better place. I can’t think of a better way to celebrate Manufacturing Day. If you want to get in on it, give me a call.
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