5S + Constant Evolution = 6S

A sticker on my dad’s old lunch box. I still use the lunchbox today. He worked for a steel mill in maintenance for more than 35 years. This was from one of their many safety program pushes.

6S is a standard in many facilities. This standard spawns from the Lean Manufacturing and Six Sigma standards of 5S. Of course, it adds one more characteristic to it: the sixth S, Safety. Back in 2006, I achieved a Green Belt in Six Sigma and Safety was mentioned a good amount as a driver for several of the processes. The fact Safety was not one of the fives shows two things, I’m getting older and getting closer to that age where I have been out of school longer than I was in; and Safety is and should be a top priority, maybe it always should have been.

In case you have never been introduced to Lean Manufacturing or Six Sigma, this principle focuses on a single piece flow and optimizing a work process to minimize the amount of time it takes. This increases efficiency in the manufacturing process and ultimately puts money back into the bottom line of the business.

The first S is Sort, you should remove anything that is not needed for the production process, this could be additional tooling or resources that are not needed for the specific work station or task. This prevents any kind of clutter or confusion on what is needed.

The second S is Set In Order, just like the photo above, every tool and bin should have it’s place at the work station. This helps operators find what they need when they need it. The outlines also give a visual indicator to any tool or device that may be missing and or in use. Again, it helps with the operators time efficiency and reduces risk of leaving a tool in a process.

Third is SHINE, every aspect of a work area should be cleaned up, sometimes this needs to be done throughout the shift and other times just at the end of the shift to put everything back in place and prepare for the next operator or day. When I worked in retail I would hear managers tell people, “You have time to lean, you have time to clean.” and while it isn’t the best approach, it is a true statement. This does contribute to keeping production running at high efficiency, being able to spot leaks or wear issues on equipment that aren’t caked in chips, grease, and used fluids. It can also aid with safety by preventing slips or falls from a leak or debris building up from a process.

Fourth, Standardize, this means all work areas should look the same, maybe not the exact same tools, or process, but any operator should be able to walk into a work station, read the documentation, and be able to function sufficiently. This also helps to keep the old ways of tribal knowledge from happening which will prevent changes and adjustments from not being documented and will help to reduce learning curves when changes happen.

Fifth, Sustain, this is one of the hardest. This means the standards that have been set in place are kept. Repetition is key in a scenario where 5S or 6S are being implemented and even where they have been set in place for a while. Revisiting the standards and ensuring they are aligned to production and operator needs is always good.

A Safety Sticker from my dad’s 1988 lunchbox that I still use to this day. They were running safety programs before it was cool.

Sixth, Safety, this should always be at the forefront of any process. Being able to keep operators safe during a work day is always a high priority and one of the many ways to do that is to use the other five Ss to make sure that they can efficiently and safely work throughout their day.

Whether it is replacing open pipe blowoffs with engineered nozzles, cross drilled blowguns with Safety Air Guns, installing Line Vacs to help evacuate trim or debris, Super Air Amplifiers to cool down a part before it is being handled. I’ve even helped customers with custom length air hoses to ensure their operators can’t reach the air hose into a process too far in order to ensure operator safety. EXAIR is always focused on safety and ensuring our products help increase process efficiency. If you want to see how we can help you and your team, contact an Application Engineer today.

Brian Farno, MBA – CCASS Application Engineer

BrianFarno@EXAIR.com
@EXAIR_BF

Daniel Bernoulli and His Effect on EXAIR Products

Daniel Bernoulli was born on February 8, 1700, in Groningen in the Netherlands. He is the son of Mathematician Johann Bernoulli, who was an early developer of Calculus. Daniel took an interest in mathematics when he was just 7 years old. Although his father tried to dissuade him from focusing on mathematics due to the limited financial gain, Johann did tutor his son in calculus and theories of kinetic energy.

Daniel continued to show promise, attending Basel University at the age of 13, where he studied logic and philosophy. By the time he was 15 years old, he had completed his bachelor’s degree, and earned his master’s degree a year later. At the age of 23, he moved to Venice, Italy to learn medicine, but he couldn’t get away from mathematics, becoming a professor of a university in Venice a year later.

In 1738, Bernoulli published the book Hydrodynamica, where he first explained what we know as Bernoulli’s Principle. This is of particular interest to us at EXAIR, as many of our products operate off of this principle. It states that an increase in the speed of a fluid occurs simultaneously with a decrease in pressure. This is derived from the conservation of energy, where an increase in kinetic energy (speed) requires a corresponding reduction in potential energy (pressure).

When compressed air exits the precise slotted nozzle of our Super Air Knife, this induces a low pressure area, which speeds up and draws in ambient air. This air entrainment (at a ratio of 40:1) is what makes our Super Air Knives so efficient. This same effect can be witnessed with our Super Air Amplifiers, Super Air Nozzles, Super Air Wipes, as well as many other products.

The high speed of the air exiting the (left to right) the Air WipeSuper Air KnifeSuper Air Nozzle, and Air Amplifier creates a low pressure (just like Daniel Bernoulli said) that causes entrainment of an enormous amount of air from the surrounding environment.  This maximizes flow while minimizing consumption of your compressed air.

If you would like to discuss your application, and how the Bernoulli Principle may be beneficial, feel free to give us a call!

Al Wooffitt
Application Engineer

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Compressed Air Safety Do’s and Don’t’s

DO take compressed air safety seriously. We are all familiar with the importance of safety. Almost every company has some form of annual safety training. One of the common themes of these kinds of training is that it is not just some people’s responsibility, but that it is everyone’s responsibility. Here at EXAIR we take safety seriously. All of our products are engineered with safety in mind – we even have a line of products with ‘safety’ in the name – Safety Air Guns. This is very important, as working with compressed air can present some health risks if not used properly.

OSHA, the Occupational Safety and Health Administration, is an organization here in the United States that enforces governmental directives for safe and healthy working environments. They can also enforce these directives with heavy fines for violations.  With compressed air, the two most common violations are air guns and blowoff devices are described in 29CFR 1910.242(b) for dead-end pressure/chip shielding and 29CFR 1910.95(a) for maximum allowable noise exposure.

The first regulation – 29CFR 1910.242(b) – references the use of hand-held tools. DON’T use a blowoff device at more than 30psig if the compressed air can be dead-ended. If the compressed air has no other path to escape, it can penetrate the skin, causing an air embolism. A common and simple solution is to cross-drill a hole to allow an alternate path. This could create other safety issues, as we will discuss later. EXAIR’s nozzles are designed with fins which allow the air to escape and not be blocked by your skin.  So, you can safely use the EXAIR Super Air Nozzles above 30psig.

The second regulation – 29CFR 1910.95(a) – references the maximum allowable sounds level an individual should be exposed to. DON’T allow an operator to be exposed to excessive sound levels for too long. This is where the cross-drilled nozzle falls short. Although safe from dead-end pressure, the sound produced by the turbulent airflow is very loud. The engineered design of EXAIR’s nozzles entrain the surrounding air into a laminar flow, which is much quieter. Our Model 1210 Safety Air Gun (which uses our Model 1100 Nozzle) only has a sounds level of 74dBA, which is comfortably under the noise exposure limit for 8 hours.

If you want to take compressed air safety seriously, then DO use EXAIR’s line of safe, quiet and efficient Safety Air Guns and Air Nozzles. If you would like to discuss this, or any of your other compressed air application needs, then give me a call!

Al Wooffitt
Application Engineer

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Banner image by Gerd Altmann from Pixabay
Dead End image by Peggy und Marco Lachmann-Anke from Pixabay

The Important Safety Features of the Flat Super Air Nozzle

EXAIR’s Flat Super Air Nozzles have been blowing away the competition since 2003.

The EXAIR Flat Super Air Nozzles are manufactured to blow a wide, forceful stream of air.  Their engineered design creates a high-velocity, laminar air stream with minimal air consumption and low noise levels.  They come in two widths; 1” (25mm) and 2” (51mm).  EXAIR offers a standard Flat Super Air Nozzle and a High Force Flat Super Air Nozzle in two different materials: zinc-aluminum alloy and 316 stainless steel.  And with a metal construction, breakage is not a concern, and performance is not sacrificed even in the harshest of environments.  The unique patented shims inside the EXAIR Flat Super Air Nozzles will give you three improvements to the design and function.  First, they come in different thicknesses to create a wide range of forces.  In conjunction with a regulator, you can “dial” in the correct amount of force from a breeze to a blast without overusing your compressed air system.  The patented design also allows an even flow across the entire width of the air nozzle.  Lastly, the design helps to entrain the free ambient air, so that less compressed air is required, saving you money.  The EXAIR Flat Super Air Nozzles are effective in uniform blowing with safety and efficiency in mind.

To expand more on force adjustments with the Flat Super Air Nozzles, EXAIR has an easy way to change the shim to better suit your application.  You can increase or decrease the force of the nozzle by just removing two screws and changing the thickness of the shim inside.  EXAIR offers a variety pack called a Shim Set to give you a range of forces with the nozzles.  For the standard Flat Super Air Nozzle, they come stock with a 0.015” (0.38mm) shim for both the 1” and 2” sizes.  The corresponding Shim Sets will include a 0.005” (0.13mm), 0.010” (0.25mm), and 0.020” (0.51mm) shim.  The High Force Flat Super Air Nozzles will come standard with a 0.025” (0.64mm) shim, and the Shim Set will include a 0.020” (0.51mm) and a 0.030” (0.76mm) thick shim.  This is a unique feature, as the competitive plastic flat nozzles do not have this option.

What can make the Flat Super Air Nozzles even better?  Flexibility.  My colleague, Jordan Shouse, wrote an article showing these features called “Flat Super Air Nozzles with Accessories to Fit Your Application“.  In addition to the features and benefits, the Flat Super Air Nozzles come with a lip for safety reasons.  Occupational Safety and Health Administration, OSHA, has a federal regulation, 29CFR 1910.242(b) to eliminate dead-end pressure.  This states that pressure over 30 PSIG (2 bar) can penetrate the skin and can cause injury or death.  With the safety lip on the Flat Super Air Nozzles, it eliminates that concern, even above 30 PSIG (2 bar) inlet air pressure.  Unlike pipes and copper tubes where the skin can cover and block the exit, the lip on the Flat Super Air Nozzles will allow the air to escape.  So, you cannot block the exit (reference photo above). 

With the EXAIR Flat Super Air Nozzles, you can take advantage of their durability, safety, and efficiency for your blow-off devices.  And just to let you know if you are within the U.S. or Canada, they do come with a 30-day unconditional guarantee to try them out.  If you need any help with drawings, performance, or setup of our Flat Super Air Nozzles, you can speak with an Application Engineer at EXAIR.  We will be happy to help you.

John Ball                                                                                     

Application Engineer

Email: johnball@exair.com

Twitter: @EXAIR_jb