How to Obtain Maximum Adhesion on Your Packaging Line

As we return back to work from the shut down earlier this year, facilities may be experiencing several new situations or issues that they have either never dealt with before, or maybe they are new to the industry and need help with understanding how best to operate a high-speed packaging line. We are hearing from a lot of our customers, both old and new, that good adhesion has become a problem. Even though we are moving into the summer and the weather is no longer a potential cause of adhesion issues, there are a few other checklist items that you can walk through to help correct any lack of adhesion.

The first thing to check is the distance of your application gun and nozzle tip to the container or carton you are trying to glue together. If there is too much distance between the tip and the box, the glue could be cooling mid-air, not allowing the cartoner to get full adhesion when moving the box to the folding stage. This solution could be a simple mounting adjustment to lessen the space between the nozzle tip and the box.

Another item to review is the viscosity and melt rate of the glue you are using. It is imperative to educate your line operators on the glue specifications to make sure they are heating it to the correct temperature. On the flip side of that, make sure they are not over-heating it and making the glue too thin, creating a longer open time for the adhesive. Knowing the specifications of your glue will also help you to regulate the amount of glue you are using on your applications, hopefully keeping your operating budget down.

In addition to the above listed items, we also highly recommend regular maintenance on your hot melt system to limit the amount of char building up in the tank. Performing regular maintenance such as changing out tank filters, in-line filters and cleaning out the tank quarterly, will lessen the effects of char through the line. If you do have a lot of char build up, that can and will transfer through the system and onto the box. Too much char mixed in with your glue can be causing adhesion issues. Once the glue dries and hardens around the char, the char can separate from the box.

If you are experiencing any adhesion issues or have any other troubleshooting questions that you would like to review with a technician, please call Universal Systems SE at (561) 272-5442 or email tech@ussefl.com.

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Chillers on Your Manufacturing Line

Now you may be asking yourself, why am I reading about chillers on a hot melt blog? The answer is easy, Universal Systems SE manufactures heated hoses that can be used for transferring many more substances other than glue. And when there are applications that do not include glue, the manufacturing lines may need chillers.

Our heated hoses, while mainly used for high speed packaging glue application, can also be used for heating and transferring a plethora of other materials. Our Teflon lined hoses can transfer anything from candy, make up, wax and much more! Depending on the use and application of different substances, the packaging line can be filling at high rates of speed. Heating and filling formed containers for candle wax, as an example, can be tricky because in this application the wax needs to cool quickly so that it can be formed, packaged and shipped out to end users. One of the most common questions we get in this situation is: How can I keep my forming operation running at a high-speed pace from start to finish? The answer here is chillers. Essentially how a chiller works is it is built into the conveyor line. So, the product would be heated in a melt pot, transferred through the heated hose, dispensed into containers, and then fed along a chiller that is built into the line. The product goes from hot to cool in a matter of seconds.

If you have any other questions on how we can help you keep your production lines running at high-speed capabilities, please reach out to sales@ussefl.com or call to speak with a technician (561) 272-5442.

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The Importance of Air Quality in Packaging

Air quality is important in all aspects of life, but for some reason usually overlooked in packaging lines. Almost all hot melt application equipment will require air to operate, especially if they are pneumatic. Universal Systems’ line of ProBilt™ hot melt equipment utilizes air in several different points of operation. The pneumatic pumps require air in order to shift the actuator and pump the glue through the system. Also, modules require air to open the piston and, in some cases, even to close the piston. Of the two operations in your hot melt application process that require air, it is most important for the pump to receive clean air.

Universal Systems pneumatic pumps are manufactured with extreme precision and delicacy. The most important part of the pump is the actuator, otherwise known as the shifter. The shifter’s main components are the spool and sleeve, which is how the shifter “shifts”. The spool and sleeve are machined in pairs, hand measured, calibrated, cleaned and assembled. The shifter is attached to the side of the pump. If you have a ProBilt™ tank and pump, take a look at the label on the side of the shifter. It reads: “The air supplied to the pump should be dry, filtered and non-lubricated.” If the air supplied to the pump, that goes through the shifter, is lubricated, your shifter will seize over time. The reason is that the oil in the air will build up in the millimeters of space between the shifter spool and sleeve, not allowing it to smoothly shift. If you do have unfiltered air running to your hot melt pump, we sell a ¼ NPT filter regulator that you can attached to the air lines and filter the air before it goes into the pump. Check it out on our website here.

If you have any questions regarding your pneumatic pump or modules, please call us at (561) 272-5442 and one of Universal Systems’ technicians will be happy to help. You can also email sales@ussefl.com.

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Keep Your Melter Clean

Keeping your hot melt adhesive system clean may seem like an impossible task. Take a look at your melter now, it is probably bronzed and blackened with old melted glue. Well guess what…that is what travels through your application system and onto your boxes. Also, do you see all of the little bits of blackened glue? That is called char, and it is a big problem for your equipment. Even though your melter looks like this now, it is possible to keep it clean “ish”. Now, this melter runs in a packaging line, most likely 8 – 12 hours per day, every day, so there is no way that tit is going to stay pristine or even look clean after its first use. However, there are a few tricks of the trade to keep your melter looking good and running even better for decades to come.

Universal Systems SE sells a product called Purge Plus™ that, when used properly, will clean almost any melter. The directions for use are simple:

  • Drain all hot melt from tank reservoir
  • Fill reservoir with Purge Plus™
  • Heat Purge Plus to 350°F – 375°F for approximately 45 minutes
  • Open tank drain valve and remove tank filter assembly
  • Slowly start pump and run Purge Plus™ through the tank manifold and into a meal container until reservoir is empty
  • Stop pump, replace filter assembly and close drain valve
  • Carefully wipe any remaining contaminants from tank reservoir
  • Add new hot melt and recirculate through system
  • Drain one cup from each hose

In addition to cleaning the tank reservoir and heated hot melt hoses, if you are running a ProBilt™ series melter, the exterior is manufactured out of 316 grade stainless steel. So, any stainless steel cleaner will shine the exterior of the tank.

For any additional questions about Purge Plus or how to properly clean your tank and hoses, please call a Universal Systems service technician at (561) 272-5442 or email tech@ussefl.com.

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When Consumers Can’t Open their Boxes

Have you ever purchased a case of soda or carton of coffee cups and can’t get the box open? Of course, we all have. In the packaging industry, especially for hot melt machine manufacturers, that is a red flag. Whenever we get a box that has too much hot glue on it means that the packaging line is not set up properly or not being cleaned regularly.

If you are wondering why too much glue means that the line is not set up properly or not being cleaned regularly it is because one of two issues is occurring (or sometimes even both). The first issue is most likely that the line operators and/or maintenance managers are not cleaning the tank regularly and the lines are clogging up with char, which will subsequently clog nozzles. Instead of cleaning the tanks and hoses, and replacing the tank filter and in-line gun filters, most operations just buy bigger nozzles. If the diameter of the nozzle orifice is larger, then it will allow through more bits of char and not clog up as easily. Unfortunately, this is not a long-term solution. Putting down more hot glue will drive up the amount that facilities spend on adhesive pellets, and ultimately the annoyance will trickle down to the consumer when they can’t get their box open. The solution is simple…utilize Purge Plus to clean your tank every 1,000 hours. For some facilities that could mean cleaning every quarter and for others that could be twice a year, it all depends on the facility. In addition to cleaning the tank and hoses with Purge Plus, make sure that the tank filters are changed every 500 hours. The in-line gun filters should be changed every 150 hours to ensure that no char travels into the gun applicator, through the module and nozzle and onto the box.

The second issue that could cause too much glue on boxes, is that the line was not set up correctly from initial purchase. A lot of cartoners have standard hoses, guns, modules and nozzles that will work for most case packers, but not for all. Make sure to take into consideration the temperature of your packaging facility (which can impact the adhesion and viscosity of the glue as it travels through the application process), the distance that the guns are to the box upon application, and the surface area of the box you are covering. The longer the bead of glue you place, the less likely you are to need a larger diameter nozzle. The shorter the range you are covering, you might need more glue to make sure that maximum adhesion occurs, which means you need a larger diameter nozzle.

If you think you are putting down too much glue on your packaging line and need help, call one of Universal Systems’ technicians at (561) 272-5442. We have the most knowledgeable technicians in the business that can help you with almost any question.

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Heated Hoses Can Transport More Than Adhesives

While adhesive application is Universal Systems’ main focus, several of our customers utilize our heated hoses for more than just adhesive. Our standard line of ClearFlow™ heated hoses can heat up to 450 degrees, run at 240v and have a maximum operating pressure of 1500 psi. We also manufacture custom transfer hoses which run at 120v and typically transfer material that heats at a lower temperature. For example, cosmetics, wax and chocolate or candy.

There are several CPGs out there that utilize heated hoses for more than just packaging. Our hoses can transfer any of the following materials:

  • Cosmetics
  • Chocolate
  • Candy
  • Wax
  • Air
  • Vape Liquid
  • Polyethylene
  • Paint
  • Tar
  • Food Oils
  • Water
  • Ink

One of our clients is a great example of how versatile our hoses are. They are a cosmetic packaging company that recently utilized our services to bottle a hair gel product, specifically made for curly hair. Their conveyer worked methodically to fill the bottle with water, then moved to fill with the hair gel formula. The combination of water and product created a foam, which needed to be eliminated quickly in order to keep the process moving. A spurt of hot air down into the top of the bottle is just what was needed before capping. Our heated hoses transferred, not only the water and hair gel product, but also the hot air needed to eliminate the foam.

We also have several clients who utilize our entire hot melt system to heat wax pellets, transfer them through the heated hoses and fill plastic molds. After the wax is transferred into the form mold, it is then moved to a cooling tray to harden and get ready to package. A separate Universal Systems ProBilt™ system is then used to seal the product box and ultimately the case.

So, if you are interested in utilizing a ProBilt™ system or ClearFlow™ hose for more than just adhesives and final packaging, give us a call and we can help! Please call (800) 848-5018 or email sales@ussefl.com for more information.

 

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Hunting Down Old Adhesive Melter Parts

An interesting fact about the packaging industry that most people don’t realize, is that purchasing agents become avid internet hunters when it comes to finding parts for their old equipment. There are several resources out there, the largest being eBay, for purchasing agents to find and buy parts for their old adhesive melters. The problem is, when buying from a bid platform, you never know what you are going to get. If you are looking for an old part, for a melter that is more than 20 years old, the part you find online could either be used or the wrong part. Also, with most online bid platforms, you get what you get. There are no returns or exchanges for your actual part. And in most cases, you get what you pay for.

Universal Systems SE realizes how important it is to be an online resource of purchasing agents, which is why we have invested in becoming “searchable”. In the last couple of years, we have launched a new website, added more products, and increased the number of cross-reference IDs on our website. We have added pictures, spec sheets and custom contact forms to help purchasing agents get exactly what they need. We are also working on making sure that we show up in the search results when purchasing agents Google old part numbers or manufacturers.

The benefit of buying from USSE is that all of our equipment is new, in stock and you can talk with a technician to make sure it will fit with your current equipment. Another key aspect of working with USSE is our staff of knowledgeable engineers that have been around adhesive melters and packaging line equipment for over 40 years. If you have a question about your old melter, we are most likely the only company in the industry that can answer it.

To test out the knowledge of our technicians, give us a call at (800) 848-5018. We are certain we can get your old equipment back up and running in record time.

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New Year, New Melter

A trend that we were seeing in 2019 in the packaging industry was repair, repurpose, repeat. No one seemed to want to spend the money on new equipment. It did not really come as much of a surprise since the political atmosphere of the United States was so polarizing. With inconsistency in government and leadership, comes inconsistency in the business world. Large CPGs were not interested in allocating budget to new equipment, but trying to repair old equipment.

What large CPGs fail to realize is that band-aiding an issue with a packaging system, only delays the inevitable. Having to invest in new equipment. This process can be a long and tedious one. Getting multiple quotes from different manufacturers and lead times. Also, needing to know availability and compatibility with your current packaging line. The new tank buying process could take months, and if your old equipment fails while in the middle of that process, your lines could be down and production at a standstill. That is a very big risk to take.

At Universal Systems SE, we offer six different hot melt tanks and application systems that could fit almost any packaging line. All of our ProBilt™ tanks are the same physical footprint as most Nordson® tanks and compatible with most Nordson® equipment, both old and new. Universal Systems SE also offers a Trade In Trade Up Program, where you can send us back your old melter, no matter who manufactured it, and we will give you a credit towards your new ProBilt™ tank.

All Universal Systems SE standard ProBilt™ systems are in stock and can ship within one business day of ordering. So, if you are ever in a bind, or your current systems goes down and is unrepairable, we can have you up and running with a brand-new system the next day. The only system that requires a lead time is the Phoenix Auto-fill System, which is usually customized per order.

Another unbeatable aspect of investing in a ProBilt™ systems is the 10-year heater warranty that Universal Systems SE offers. It is the longest warranty in the industry.

For more information on Universal Systems SE’s line of ProBilt™ equipment or how you can get a new melter in 2020, call us at (800) 848-5018 or email sales@ussefl.com.

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How Winter Weather Impacts Your Packaging Line

As we head into the New Year and the weather gets colder, you may be experiencing inconsistencies with the adhesives on your packaging lines. What most line operators and maintenance managers do not realize is that the location of your packaging line in the plant can play a large role in the dependability of your adhesive.

This time of year, we receive several troubleshooting calls regarding hot melt consistency, heated hose and gun temperature consistency and glue stringing. It is important to take the external environment into consideration when attempting the first step in troubleshooting some of these problems. One of the first questions to ask is: where is your packaging line located? For example, if it is at the end of the packaging process, which it most likely is, then it might be on the exterior wall of your plant. Or it might be near an external door or window. If it is on the outskirts of the plant facility, and you are located in a part of the United States that is cold in the winter, then the outside temperature could be impacting not only the viscosity of your glue, but the heating time of your glue and its adhesion ability.

Every time your line operator opens the fill door on the hot melt tank, the external air hits the existing glue and cools it off. Even if the lid on your tank is only open for a few minutes, that could impact not only the current glue in the tank reservoir, but the glue you are adding to the tank. Especially if you are adding in cold glue. If your glue pellets are colder than normal, it will take a longer amount of time to heat them. A solution to this issue would be to invest in an auto-fill hot melt application system. Universal Systems SE manufactures the ProBilt™ Phoenix Auto-Fill Application System. Not only will this system help in the winter months, it helps all year long by drastically reducing the number of times your line operator needs to add glue pellets.

Another important task would be to inspect your system setup for any cold joints. A cold joint would be any unnecessary extensions that you have added throughout the adhesive application process. Most cold joints are found on older machines that used larger sized extensions and filter housings. For example, the older gun filter assemblies had larger filter housings and longer extension joints, that are unnecessary and can inhibit the consistency of hot melt flow. The more cold joints on the system, the more inconsistent the glue will heat and stay heated throughout the entire application process.

If your main problem is glue stringing in the colder months, an easy solution would be to shorten the distance from the nozzle tip to the top of the box. Limiting the amount of time the glue has to travel in the air will help to lessen the problem of stringing, which can cause a weakened seal on the box.

For any further information on the ProBilt™ Phoenix Auto-Fill Application System, or to speak to a technician about any troubleshooting of your adhesive application system, please call Universal Systems SE at (800) 848-5018 or email sales@ussefl.com.

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Utilizing Key Features of the ProBilt™ Hot Glue System

There are a few brands to consider when shopping for a hot melt system for your packaging line. Universal Systems SE’s ProBilt™ product line has been around for over 40 years and has several key features that can help influence purchasing agents, as well as line operators, on why it is the best in the industry.

4 Hose / 4 Gun Standard Capability

Unlike any other hot melt tank option on the market, the ProBilt™ line of melters all come equipped with 4 hose and 4 gun capability. This is a standard option that is usually an add on from other manufacturers, like Nordson®. Nordson® has both the 2 hose/ 2 gun and 4 hose/ 4 gun melters, each differing in price. The ProBilt™ melters all come with 4 hose/ 4 gun capability at a lower price point than any Nordson®. This allows our customers versatility and the option to grow.

Easy to Program Control Board

One of the many benefits to owning a ProBilt™ system is the easy to operate, AccuScan™ Control Board. If you are plugging in a brand new tank, the board will be programmed to our factory settings. The line operator, can scan through the hose, gun and tank settings and set them to the temperatures needed. There are also a few fail safes installed in the machine. For example, if it is a cold start set up, the hoses and tank will heat first, then the guns will start to heat once the hose and tank are within 35 degrees of the set point. The reason for this is so that the gun doesn’t char, since the gun heats up faster than the hose and tank. Once temperature is reached, the “Heat On” light will blink and you are ready to use. The control board also comes equipped with alarm settings and a set back functionality, our next two key features.

Set Back Functionality

The set back functionality is one of the most important features that comes standard on all ProBilt™ tanks. Essentially, when the shift is over and you no longer need to run your packaging line, you push the set back button. This will “set back” the temperature of the tank, hoses and guns to 165 degrees. Allowing the glue already in the system to sit overnight without charring. When the morning comes, or the next shift starts, simply hit the set back button again, and all previous temperature settings will re-engage. This will decrease the start up time on the hot melt system significantly and allow your lines to be fully operational within minutes.

Alarm Options

Another key feature to the AccuScan™ Control Board are the alarm options it provides. The first alarm option allows for the panel to tie to an alarm light in your facility. In case anything happens that stops the system from running effectively, an alarm light can go off, alerting the line operator immediately. Another feature is the ability to tie it to the packaging line itself, called PMI or Parent Machine Interface. Parent Machine Interface will signal the packaging line when the glue is at full temperature thus preventing the line to start up until it receives the signal.

Please watch our video on how to set the ProBilt™ melter temperatures. For more information on our ProBilt™ systems please call today (561) 272-5442 or email sales@ussefl.com

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