Back Blow Air Nozzles Clean Inside Aluminum Extrusions

A manufacturing plant was using extruded aluminum structural framing for making benches.  After the aluminum parts were cut, they had coolant and chips inside the tube.  They tried to run a rag through the center to remove the material, but it wasn’t able to get into all the crevices and before long the rag was saturated.  Also, they noticed that the chips would scratch the internal surfaces.  For this company, quality was very important to represent their brand.  So, they were needing a non-contact way to clean the inside of these parts after sawing.   They contacted EXAIR as we share the same business facets of first-class customer service and great quality.

Back Blow Air Nozzle Family

At EXAIR, we design and manufacture nozzles for just this type of operation; the Back Blow Air Nozzles.  We offer three different sizes to fit inside a wide variety of diameters from ¼” (6.3mm) to 16” (406mm).  They are designed to clean tubing, pipes, hoses, channels, and extruded “odd” shapes.  The 360o rear airflow pattern can “wipe” without touching the internal surface to remove coolant and chips.  For the application above, I recommended the model 1006SS Back Blow Air Nozzle to fit inside the 1 ½” (38mm) opening.  The range for this Back Blow Air Nozzle is from 7/8” (22mm) to 4” (102mm) diameters.  This 316SS robust nozzle would last a long time without having to change or replace cloth rags.

After installing the model 1006SS onto an extension pipe, the cleaning operation became very easy and efficient.  After each cut, they would run the Back Blow Nozzle through the center with only one pass to clean.  The non-contact wiping removed the coolant and chips without marring the internal surface.  In addition, they were able to speed up their operation by 20%.  Cleaner tubes, less time, cost savings; they were happy that they contacted EXAIR for our expertise.

Model 1204SS-6-CS and 1206SS-6-CS

If you need to clean the inside of tubes, hoses, pipes, etc., EXAIR has the perfect nozzle for you, the Back Blow Air Nozzles.  EXAIR can also offer these nozzles on our VariBlast, Soft Grip, and Heavy Duty Air Guns for manual operations.  They come with Chip Shields and extensions that can reach as far as 72” (1829mm).  Or like the customer above, automate the system to get a great non-contact cleaning.  If you require any more details, you can contact an Application Engineer at EXAIR.  We will be happy to help you.

John Ball
Application Engineer
Twitter: @EXAIR_jb

Chip Vac Removes Aluminum in Cladding Machining Operation


Earlier this week I had the pleasure of meeting with a local manufacturer to showcase our Industrial Housekeeping products.  As a premier national manufacturer of glazing and cladding, they identified a need for increased efficiency within their manufacturing processes.  (The term “cladding” is more well-known in other parts of the world; here in the U.S. we typically refer to it as “siding”.  Essentially, it is the exterior skin of a building, and it includes all moisture barriers and materials used to cover the outside of a structure.)  The specific need for EXAIR products came during a solution seeking process for their machining operations.

During machining, aluminum chips accumulate within the workspace, creating difficulties with completing a machining run.  What the end user needed in this application was a way to remove the chips from the machining center, preferably so they could be collected in a container outside of the CNC.

This type of application is a perfect fit for a Chip Vac or Heavy Duty Dry Vac, so during an initial conversation with the end user, these were my recommended solutions.  Torn between the two, and located only 10 minutes from EXAIR, they requested a demonstration.  So, I set the demos up, we discussed application intricacies such as the mounting location for the vacuum hose, and the end user was able to make an easy decision regarding purchasing.  (After seeing each system in person, it was determined that the Chip Vac was the best solution.)

With so much taking place via email and over the phone, it’s refreshing to sit down with an end user face-to-face and to have them see the product work.  Realizing that this can’t happen every time, we make great effort to support our products over the phone, via email, through polished and informal videos, and in any other way our customers request.

If you have a need for EXAIR products, or wish to discuss an application solution, contact an EXAIR Application Engineer.

Lee Evans
Application Engineer