Archive for the ‘Shrink Wrap / Packaging’ Category

Polyolefin Shrink Film and Food Packaging

Tuesday, March 13th, 2012

Shrink Film for PackagingPackaging food with shrink film (found here) such as pizza, cheese, fruits and chocolate doesn’t just look good, but it is also sanitary and a great way to preserve food. There are a few things that you will need to know before packaging food using shrink wrap. For one, some grades of shrink film are not safe for use with food, where others are FDA approved. This article will cover the most popular food grade film known as polyolefin shrink film (found here).

First off, what is shrink film? Shrink film, sometimes referred to as shrink wrap packaging, is used to protect, bundle and preserve products. The film used is designed to contract and shrink when heat is applied. You may have seen shrink film on your DVDs, Blu-rays, Xbox games and more. It is very popular for retail packaging. Shrink film is affordable, easy to use / manipulate and can be used to package most retail products.

While boxes, DVDs, software and other items are popular to be packaged with shrink film, food is also another popular applicator for shrink film. The most popular film used today, known as PVC shrink film, is not usually safe for use with food. There are some exceptions. If you’re not sure what type of film you have, here are the characteristics of both Polyolefin and PVC film.

Traco I-Bar Shrink Wrap MachineShrink Film Characteristics

  • PVC Shrink Film – PVC film is a clear shrink film that once shrunk has a brittle characteristic to it. It is often used in non-food packaging. It can be very thick and typically ranges from 75 to 100 gauge thick. The higher the gauge, the thicker the film.
  • Polyolefin Shrink Film – Polyolefin film is a clear shrink film that has stretchy characteristics, making it ideal for use where PVC film may crack or break open. The stretchy characteristics of poly film are often compared to saran wrap.

Some PVC film is OK for indirect use with film. An example of this would be our PVC dome shrink bags (found here). These bags use an PDA approved PVC film that is OK for indirect use with food. An example of this would be a gift basket.

As a general rule, polyolefin is going to be your best bet with direct contact to film. Polyolefin, sometimes called poly film, is available in centerfold rolls for use with both I-bar (found here) and L-bar shrink wrap machines (found here). Polyolefin is typically more durable than PVC film, which means you usually don’t need as thick a gauge of film to accomplish what you could do with PVC. A 60 gauge poly film will be about as durable as 75 gauge PVC film.

Minipack Shrink Wrap MachineOne misconception that people have about polyolefin is that their base model shrink wrap machine, that uses PVC film, can’t use it. I used to think that myself as someone years ago told me a standard shrink wrap tunnel or heat gun didn’t produce enough heat to shrink polyolefin. I later discovered, from our manufacturer Traco, that most shrink wrap machines can use both PVC or polyolefin film and they both take about the same amount of heat to shrink. If you are considering packaging food using your old shrink wrap machine, you should be able to simply swap out your old PVC roll of film for a polyolefin roll. It is that easy.

I have used Polyolefin film on a standard I-bar sealer with a heat gun and it works great! I have also used polyolefin film on a variety of different Minipack, AIE and Traco shrink wrap machines with excellent results.

For those of you who love science, here is a technical explanation on exactly what Polyolefin film is straight from Wikipedia:

A polyolefin is a polymer produced from a simple olefin (also called an alkene with the general formula CnH2n) as amonomer. For example, polyethylene is the polyolefin produced by polymerizing the olefin ethylene. An equivalent term is polyalkene; this is a more modern term, although polyolefin is still used in the petrochemical industry. Polypropyleneis another common polyolefin which is made from the olefin propylene.

So there you have it! Everything you could possibly want to know about polyolefin shrink film. We have been selling centerfold polyolefin shrink film for use with I-bar and L-bar machines for years. Please feel free to call us at 1-800-658-8788 with any questions about shrink wrap or packaging. You can find our entire selection of shrink wrap machines here.

Minipack Inert Gas Flush Kit for Vacuum Sealers

Friday, March 9th, 2012

Minipack Chamber Vacuum SealersIf you need to provide maximum shelf life for vacuum-sealed food, without removing all of the air, you need to use what’s known as an inert gas kit. Minipack, one of the leading manufactures of commercial and industrial vacuum food sealers (found here), offers inert gas flush kits for all their chamber machines. This article will cover what is involved in an inert gas kit and why you may want one for yourself.

Vacuum sealers, out of the box, can be used to remove air from a bag for preservation purposes. Minipack vacuum sealers can remove 99.9% of the air in a bag. For food preservation purposes, this gets the job done. The only problem is that not everyone wants to remove all of the air. Many fruits, vegetables, chips, bread products and other food will be damaged and crushed if all the air is removed. By using an inert gas flush kit, air can still be left in the bag and thus the food itself is not damaged.

Why swap out the air? One of the most damaging gasses you can have in packaged food is oxygen. This is because most food-damaging life forms and bacteria use oxygen. In practice, the removal of that oxygen will eliminate the very gas needed to sustain life. This is done by re-balancing the gasses.

Re-balancing of gasses is most economically done via an inert gas kit. The inert gas kit is used to flush out oxygen (O2). Oxygen makes up about 20.9% of the air we breath. The gas kit creates a modified atmosphere, which is process of moving the 20.9% oxygen content down to 0%. By removing the oxygen, and replacing it with another gas, food shelf life can be dramatically extended.

While the oxygen is removed, it has to be replaced by another gas. One of the most popular inert gasses used is nitrogen (N2). Another inert gas is carbon dioxide (CO2), which helps cut down on bacterial growth while lowering the PH. Carbon monoxide has even been used as an inert gas as it helps red meet retain a bright red color. These gasses are all considered to be safe for use with food. The gas used will ultimately depend on the product being packaged.

As mentioned earlier, Minipack offers an inert gas flush kit for all their machines. That kit must be factory installed, so you will want to request it when purchasing a new machine. The price of the kit varies from one machine to another.

Please feel free to call us at 1-800-658-8788 for more information on an inert gas flush kit for your Minipack chamber vacuum sealer. You can find our entire selection of Minipack vacuum sealers here. You are more than welcome to call us with your questions or you can simply post your question here as a comment.

Minipack Galileo Replaced by the Minipack RP55

Monday, March 5th, 2012

Minipack Galileo Shrink Wrap MachineI can’t really explain why Minipack has discontinued the extremely popular Minipack Galileo, being that it was one of the best selling shrink wrap systems available. What I can say, however, that it has been replaced by a very solid machine, the Minipack RP55 (found here). I would like to show you just how the old machine and the new replacement stack up next to each other.

The Minipack Galileo was immensely popular for several reasons. To begin with, it was affordable. While the old saying “you get what you pay for” is often true, that statement did not apply to the Galileo. The low price did not signify low quality. There were several machines that were more money that I didn’t feel held up to the quality of the Galileo. The Galileo also had a large sealing chamber that could be used to package small items, such as CDs, or larger items like pizzas.

Minipack RP55 Shrink Wrap MachineThe new Minipack RP55 is a solid machine that ads a modern look to a traditional design. It still has all the features of the Galileo such as an integrated tunnel, an impulse l-sealer and an easy-to-use control panel. The new RP55, unlike the Galileo, includes a 500-foot roll of centerfold shrink-wrap film. The only downside is that the chamber is one inch smaller in width and length.

I would like to post the chamber and sealing specifications for both machines.

Minipack Galileo

  • 21″ x 17″ x 8″

Minipack RP55

  • 20″ x 16″ x 8″

As you can see, these two specifications are both very close. They both operate at about the same speed and can both be used with Polyolefin and PVC centerfold shrink wrap film up to 24″ wide. They are also both 220 volt machines.

The RP55 shrink wrap machine can be ordered with an optional entry film opener, stainless steel entry plate and automatic waste winder. You can also get a taller hood for the RP 55 if the 8″ height isn’t quite enough.

You can find our entire selection of shrink wrap systems here. Please feel free to call us at 1-800-658-8788 to request a quote, to place an order or to get answers to your questions.

Using AIE Bag Sealers for Food Storage Purposes

Monday, March 5th, 2012

AIE-305A1 Bag SealerI had an opportunity over the weekend to package food in #10 cans and foil bag pouches for food storage purposes. I packaged black beans, potato flakes, spaghetti, oats and more. It actually ended up being really fun. What really surprised me is that the facility I was at was using an AIE-305A1 bag sealer (found here), which we just happen to sell here at ABCOffice.com. It was fun to see a piece of equipment, which we offer, being used in the wild

So what is a bag sealer (aka heat sealer)? Have you ever purchased a bag of beef jerky, a bag of candies, opened a hard drive from an anti-static bag or torn open a Mylar bag that was full of dried fruit? These are all items that were sealed using a bag sealer. These sealers use heat to seal the open end of plastic bags for packaging and preservation purposes. These bags range in thickness, size and material composition. The bag you use will depend entirely on what you are packaging.

Mylar Barrier Bags for Heat SealersThe foil pouch bags (aka Mylar barrier bags) that I was using were made of multiplayer laminated plastic and aluminum. The bags were 7 mils thick (1 mil = .001″) and are designed to protect food from moisture, rodents, insects and other environmental factors that can decrease the life of food. The pouches I was using were designed to hold up to a gallon of food. This was large enough to hold 7 pounds of wheat, 5 pounds of dry milk or 6.8 pounds of white rice. These bags were lined with food grade plastic. The aluminum barrier helps to prevent moisture and oxygen.

If you want to package food for long term storage (sometimes up to 30 years at a time), the food will need to meat few criteria:

  • The food has to be dry (10% moisture or less)
  • Low in oil content
  • Shelf-stable

Using the AIE-305A1 bag sealer (found here) was extremely easy. These are the steps I took to package my food:

AIE-305A1 Settings: Set the recycle dial to 2, the Congealing dial to 6, the Sealing dial to 4 and the Action Selector switch to manual. I recommend setting the heat sealer 5 inches above the table or desk surface. This can be done by setting it on a block of wood, books or something else that can support and elevate the machine. This makes operation easier.

  1. Fill the pouch with the food product. Don’t overfill the back as this can result in a poor seal. If you are packaging powder, be sure the area that will be sealed is clean.
  2. Place an oxygen absorber on the top of the food inside the pouch.
  3. Turn on the AIE heat sealer.
  4. Place the open end of the pouch into the machine. Let the bag rest on the table or shelf.
  5. Pull the sides of the pouch outward to ensure everything is flat.
  6. Fold the top of the pouch over (at about 1 ½” from the top) at a right angle.
  7. Now press the bag and expel remaining air from inside.
  8. Open the folded top bag open for sealing.
  9. Hold the bag by the sides and insert the open end of the pouch into the heat sealers jaw.
  10. Remove any wrinkles.
  11. Activate the AIE heat sealers jaw by pressing the foot pedal.

There you go! It is recommended to test the seal for any leaks. If any air can be forced out or if the seam can be pulled apart, you may need to re-seal the bag. You may also need to adjust the sealing dial from 4 to 4.25. If the seams seem to be burned, decrease the sealing dial from 4 to 3.75. Also remember to not overfill the pouches as this will result in a poor seal as well.

Where should sealed pouches be stored? I recommend putting sealed pouches of food in a cool and dry location. This should preferably be in a rodent-free area as rodents can chew through the aluminum / plastic material. If you have a rodent issue, you can place the sealed bags of food in a metal trashcan or other rodent-proof container.

While the 14″ wide AIE-305A1 (5mm seal) was the machine of choice where I was packaging food, you can use other heat sealers to complete the process.

American International Electric (AIE) makes some of the best heat sealers, bag sealers and shrink wrap machines available. Their machines have an industrial look to them and are made from solid metal components and long-lasting electronics. You can find our entire selection of AIE heat sealers here and our entire selection of bag heat sealers here.

Please feel free to call us at 1-800-658-8788 with any questions regarding heat sealers. You can also leave your questions here as a comment.

Overview of the Traco SuperSealer I-Bar Shrink Wrap Machines

Tuesday, December 20th, 2011

Traco Deluxe SuperSealer I-Bar Shrink Wrap MachineMany people ask me, “Do you offer an economical alternative to your high-end shrink wrap machines?” This is an understandable question. Not everyone wants or needs to spend thousands of dollars on a high-end shrink wrap system. One economical alternative is to use an I-bar sealer, like those manufactured by Traco.

Traco is one of the world’s largest manufacturers of shrink wrap machines and shrink wrap film. Their 60,000 square foot facility has been cranking out packaging equipment for years. Having been in business for 27 years, Traco has developed a stalwartly reputation. We sell a lot of Traco supplies and equipment and I can tell you from personal experience that their products really are that good.

Traco I-bar sealers use the exact same shrink wrap bags and centerfold rolls of shrink film that the high end machines do. They just use a slightly different method to complete the process. To date, their I-bar sealers range in length from 13″ up to 40″. This means you can use them to package something as small as a CD or as large as a box. To date, over 150,000 SuperSealers have been sold.

Comparable to the AIE I-bar sealers, the Traco SuperSealers are available in two different designs. You have the standard SuperSealer and the deluxe SuperSealer. So what are the differences between the two? I’ll explain.

Traco Standard SuperSealer I-Bar Shrink Wrap MachineTwo Types of SuperSealers

  • Standard SuperSealer – The Standard SuperSealer (found here) is extremely similar to the Deluxe model. It includes a roller base for the centerfold roll of film and a film separator. The spring-loaded sealing arm can be pulled down, activating the cutting wire in the “I Bar.” This cuts the film. An included HotShot heat gun can then be used to shrink the film. The entire process takes just minutes, and if sealing a small item, just seconds.
  • Portable Deluxe SuperSealer – The Deluxe SuperSealer (found here) is almost exactly the same as the standard version, but also includes a light that lets you know when the sealing process is occurring. When the light is off, the sealing is done. Some people enjoy having this visual indicator, although it is not a necessity. The Deluxe version also includes a replacement parts kit and a 50’ starter roll of film.

 

This is a video demo of the Traco SuperSealer in use:

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Both versions of the SuperSealer produce high-quality results. Products packaged on a SuperSealer have the same professional appearance as those packaged on high-end shrink wrap systems and L-Bar sealers.

Whether you are packaging CDs and DVDs, or simply want to provide an attractive / protective sleeve for your art or photo prints, the SuperSealer shrink wrap machine has multiple uses. The best think is that SuperSealer shrink wrap machines cost hundreds, rather than thousands of dollars. The only limitation of the SuperSEaler, versus a high-end machine, is the speed. I-bar sealers, like the SuperSealer, are best used for light to medium-volume packaging.

You can find our entire selection of shrink wrap machines here and shrink wrap film here. Please feel free to call us at 1-800-658-8788 to speak with one of our shrink wrap / packaging specialists.

Shrink Wrap Film: 60, 75 or 100 Gauge? Which is Best?

Tuesday, December 6th, 2011

Polyolefin Shrink Wrap FilmShrink wrap film, whether it is a centerfold roll or a shrink bag, comes in different thicknesses. The thickness of shrink film is referred to as the gauge. Many customers call asking which gauge they need for their product. The answer the question, “Which gauge thickness should I use?” depends entirely on what you will be packaging.

One hundred gauge film is 1 mil thick (0.001″). That gives you an idea on just how thick the shrink film is that you will be using. Remember that as the film shrinks it gets thicker. This is because the surface area of the film shrinks when direct heat is applied. As the surface area shrinks, the film thickness increases. Most shrink film shrinks about 40% its original size when in contact with a heat gun or tunnel.

PVC Shrink Wrap FilmMost shrink wrap film is available in 60, 75 and 100 gauges. This isn’t always the case, but is the norm. The higher the gauge number, the thicker the film is. Shrink wrap film comes in 2 different flavors, PVC film and Polyolefin film. PVC film, which is more common, has a tougher texture and feel to it, where Polyolefin has a more pliable / stretchy feel to it. Polyolefin is safe for use in direct contact with food.

PVC shrink film is almost always available in 75 or 100 gauge thicknesses and Polyolefin film comes in 60, 75 an 100. Polyolefin film is available in 60 gauge, because the thinner film is more durable than PVC film. A 60-gauge thickness in PVC film would be too thin and would break too easily.

As a general rule, if you are only packaging a single item, the thinner film is almost always fine. That means if you are packaging a single DVD, CD or box, 75 gauge PVC or 60 gauge Polyolefin is almost always more than enough to keep things coated and protected. This isn’t, however, the case when bundling multiple items together.

If you are bundling multiple items together, let’s say 2-3 DVDs, you will want to use a thicker film. The thicker film helps prevent movement and is less likely to break apart in shipping or while being handled. This means if you are bundling multiple items together, you may want to consider 100 gauge PVC film or 75-100 gauge polyolefin film.

Hopefully this helps answer the question, “Which film thickness should I use?” If you need additional clarification, or simply have a shrink wrap packaging question, please contact one of our specialists at 1-800-658-8788.

You can find our entire selection of shrink wrap film here and our entire selection of shrink wrap machines here.

New PVC Shrink Wrap Bags Now Online

Wednesday, November 30th, 2011

PVC shrink wrap bags provide a quick and easy way to quickly package a wide variety of material. These bags make packaging products as easy as inserting something into a heat shrink bag, sealing it shut and shrinking it down using a heat gun or shrink tunnel. The entire process takes just seconds and it is remarkably affordable. We have added two different types of shrink wrap bags to our site.

PVC Dome Shrink Wrap Bags / Gift Basket Bags

Dome Shrink Wrap Bags (found here)

The first type of bag we offer is called a dome shrink wrap bag. This bag has a special rounded dome end to it, which is primarily designed to fit around objects such as gift baskets. In fact, our dome bags are often referred to as gift basket bags. Simply open the bag, insert the basket and either tie or seal off the open end. The next step involves shrinking the film down.

Our dome heat shrink bags can be shrunk down using a heat gun or a shrink tunnel. This film has a 40% shrink rate, which means it will shrink down 40% from its original size. This provides a nice tight seal around everything. Because the PVC film is 100 gauge thick, it doesn’t easily tear or rip. The film is crystal clear once shrunk down. Our dome shrink wrap bags are also FDA approved for indirect contact use with food.

Square “Super Shrink” Stock Shrink Wrap Bags (found here)

These bags are more similar to what you imagine when you think of a shrink wrap bag. These bags are square in shape and can be used to package CDs, DVDs, video games, magazines, books, gifts, paper and much more. Using these bags is extremely easy and requires just a few basic tools. The open end of these bags can be sealed and cut off by using an I-bar shrink wrap machine or a heat sealer with a cutter. Shrinking can be done via a heat gun or heat shrink tunnel.

Our Super Shrink heat seal bags also have a 40% shrink rate, allowing them to quickly shrink down and wrap around corners and various shapes. Because the film is micro perforated, air is able to easily escape during the shrinking process. Our square shrink wrap bags are made from PVC and are 80 gauge thick.

Both our dome and square shrink wrap bags are very affordably priced and ship out quickly. We currently offer these bags in 1,000 count bulk quantities. If you plan on purchasing thousands of these, we may be able to offer a quantity discount. Call 1-800-658-8788 for more details.

You can find our entire selection of shrink wrap film here and shrink wrap machines here.

Best Way to Package Chocolates

Monday, October 24th, 2011

Chocolate Packaging Shrink Wrap MachineWhether you are making your own chocolates or need a way to package boxes of chocolates, you are probably going to need some sort of retail packaging. While there are several ways you can package chocolates, one of the most popular methods is by using shrink wrap. Which kind of shrink wrap machine is best for packaging chocolates and is there any risk of the chocolates melting? I will answer these questions and more in this article.

Having been in the packaging industry for over a decade know, I have seen people package everything from pizzas and baskets to soap and books. Another popular item is chocolates. This involves chocolates in a box or unboxed. There are a couple of different approaches you can take to shrink wrapping chocolate. These involve I-bar sealers and L-bar sealers. The machine you use depends on the volume you will be packaging. Here area  few benefits of both:

I-Bar Sealers – I-bar sealers (aka straight bar sealers) involve a single cutting bar. This bar is pulled down to cut film around an object, usually requiring 2 passes. These systems can be used with shrink bags, but are typically used with centerfold shrink film. Simply insert your chocolate bar or box, cut the film around the package and sealing the film using a heat gun. These machines are ideal for a few dozen to a few hundred packages a day.

Here is a video demo of an I-bar sealer in use:

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L-Bar Sealers – L-bar sealers use an L shaped sealing bar that completely seals chocolate in film in a single pass. These types of sealers can be used in conjunction with a heat gun or a heat tunnel. Many modern L-bar sealers incorporate a built-in heat tunnel that seals and shrinks the film in a single pass. These machines are ideal for a few hundred to a few thousand packages per day. Some of the higher-end machines can package tens of thousands a day.

Here is a video demo of an L-bar sealer in use:

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Which type of film should you use?
There are two primary types of shrink wrap film used in packaging. One is PVC and the other is Polyolefin. The only film that is safe for use with food is Polyolefin. This means if you are packaging chocolate, you should use Polyolefin film (aka Poly film). This is especially important if the film will be directly touching the chocolate.

Will the chocolates melt? Many people thing that since heat is used in the shrink wrap process that it will melt the chocolate. This is usually not the case. L-bar sealers, using an integrated or built-in heat tunnel will rarely if ever cause the chocolate to melt. The heat process takes just seconds and is too little time to do any damage.

I-bar sealers, which use a heat gun, do run a higher risk of melting the chocolate. While it rarely ever happens, chocolate can begin to melt if the heat gun is left on any one spot for too long. It is my observation that I-bar sealers (with heat gun) will only melt the chocolate if human error is involved. If the gun is left on any one spot for too long, it will usually damage the shrink wrap as well. Heat guns take just seconds to shrink film, so you really shouldn’t run into any issues, especially if the chocolates are in a box.

At ABC office we have sold hundreds of machines to people packaging chocolates and they always end up happy with the end results. If you do have questions, or have unique chocolate packaging needs, please feel free to speak with one of our packaging specialists at 1-800-658-8788. You can find our entire selection of shrink wrap machines here and shrink wrap film here.

Heat Sealer with a Professional Finish?

Tuesday, October 11th, 2011

AIE-210C Medical Impulse Bag SealerIf you are sealing bags with a heat sealer for retail sale purposes, your probably want something that looks presentable an professional. For this purpose, there are heat sealers that don’t just “seal” the bag shut, but use a professional cross-hatch or honeycomb pattern as well has have a built in cutter. There are machines out there that can do both.

I would say that at least 70%+ people out there simply want something that is functional and that gets the job done quickly and effectively. The other group of people also wants something presentable as well as professional in the finished product.

Those who simply want the job completed usually want a sealer for preservation, protection or for bulk packaging purposes. They don’t need “pretty,” they simply need “functional.” In these situations, they customer usually doesn’t need a wide seal or a built in trimmer. Some people, however, do need these qualities in a machine.

I spoke with a person today who wanted a 8″ wide heat sealer. I thought to myself, “I’ve got a great selection of Tish and Traco handheld sealers that should work!” I then went on to direct the customer to a few pages. I was specifically showing them the AIE-200, the AIE-205 and the TISH-200. These particular models I was showing the customer did not impress. The customer went on to tell me that they already had an AIE handheld sealer and they did not like the solid sealing pattern that it had.

After pinpointing exactly what the customer wanted, I discovered they wanted a machine with a wider seal and a “professional” finish. In particular, they wanted a crosshatch sealing pattern rather than a solid seal. It just so happens that AIE makes a few impulse bag sealers that have a honeycomb pattern. When I pointed this out to the customer, they were pretty excited. Some models even include a built in cutter, designed to trim off excess plastic. This is ideal for products that are going to be presented in a retail setting.

One great model that I recommended to our customer is the AIE-210C. This medical impulse bag sealer has a 10mm wide seal and uses a honeycomb texture pattern. The end results look great. It can be used for medical packaging or for other bag sealing purposes. You can find the AIE-210C impulse bag sealer here.

I have found that heat sealers by AIE and Traco are the best out there. You can find our entire selection of impulse bag sealers here. Please feel free to call us at 1-800-658-8788 with any questions. Also feel free to post a comment with any questions.

Minipack Shrink Wrap Machine Impulse Sealing Blade Change Instructions

Wednesday, September 14th, 2011

Shrink Wrap MachinesAs is the case with any I-bar or L-bar impulse sealer, they will eventually wear out. Normal wear includes cracking, corrosion, being dull and difficulty cutting film. The average impulse-sealing blade lasts about a year. Once your blade is caput, how do you go about changing it? This article will go into great detail on how to change your impulse-sealing blade.

These instructions are specifically for the Minipack Galileo, Galaxy, Synthesis, Junior, Vision, Media, RP-Series, FM-Series, FC-Series, EP-Series, Replay-Series and Modular-Series. While these tips are specifically for Minipack Galileo, most L-bar sealers operate in a similar manner. Be aware that sealing blade, sealing knife and sealing wire are often used interchangeably.

Minipack Impulse Sealing Blade Installation:

STEP 1 – Loosen the screws that hold the sealing blade in place. This involves a left clamp, center clamp and rear clamp. A brass piston, found in the left and rear clamps, will snap back from spring compression. This is normal. You can now remove the old sealing blade. Check for ware and replace if needed.

Minipack Impulse Blade Change Instructions Part 1

STEP 2 – Working from the back, insert the new sealing blade into the rear brass clamp piston. Do this until it cannot be inserted further. Be aware that the sealing blade must contact the bottom of the brass piston. It needs to make it past the set screw.

Using your left hand, press the blade about 6″ into seat. While holding the blade in place, push the clamp piston forward using an 8mm nut driver. The blade should move forward about ¾”. Release the clamp and continue to press the blade into the seat.

Minipack Impulse Blade Change Instructions Part 2

STEP 3 – You will now need to use your thumb to bend the blade, allowing it to fit inside the seat of the corner clamp. While holding the sealing blade wire in place, continue pressing the blade into the seat until it reaches the left front clamp.

Minipack Impulse Sealing Knife Changing Instructions Part 3

STEP 4 – You will now need to completely loosen the left clamp assembly. Once loose, continue pressing the sealing blade into the seat. Cut the sealing blade approximately 7/8″ past the aluminum channel. Be careful not to cut the sealing blade too short as the retention screw will not be able to hold the blade. If the sealing blade is too long, it will pop out. The brass clamp must be 2mm from the aluminum channel. Re-assemble the left clamp and follow STEP 2.

Minipack Shrink Wrap Sealing Knife Change Instructions Part 4

STEP 5 – Using a soft object, such as wood, push down firmly on the center blade assembly and tighten the set screw. Be aware that improper set screw alignment can lead to the sealing blade popping out during operation.

Minipack Blade Sealing Change Instructions Part 5

STEP 6 – Push the rear clamp forward using an 8mm nut driver and tighten the set screw. Be aware that the brass piston needs to be 2mm away from the aluminum channel.

If for any reason you are having trouble changing the sealing blade, or you need a few additional tips, please feel free to call our Service Department at 800-658-8788. You can find our entire selection of shrink wrap machines, supplies and accessories here.

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