Posts Tagged ‘Direct Heat Sealers’

Impulse Bag & Direct Heat Sealer FAQ

Friday, March 22nd, 2013

Bag Sealer FAQAt ABC Office, we sell a lot of impulse bag sealers and direct heat bag sealers. These tools are used by people around the world to package food, parts and other products for retail sale. Having spoken to hundreds of customers over the past decade, I would like to provide a list of answers to frequently asked questions regarding our bag sealers (found here).

What is the burst strength of the seal? – Many people want to know just how tough the seal is made by a bag sealer. While there is no set burst strength, the wider the seal the stronger it will be. I have found in my own experience that the bag will often burst before the seal. The reason I can’t provide a set burst strength on the seal is because it can vary wildly depending on the bag’s material makeup and the product being packaged.

Should I use a hand sealer or a foot sealer? The type of sealer you use depends on the size of the bag and volume you are packaging. Hand sealers make sealing smaller bags, anywhere from a few inches to 12″, very easy. If you are packaging 12″ or larger, the foot sealers are nice because they allow you to use both hands to support and insert the bag for sealing. Foot sealers are also ideal for higher volume packaging needs (hundreds to thousands a day).

What types of materials can I package with my bag sealer? A lot of it depends on the sealer. As a general rule, impulse sealers work well with polyethylene (PE) and polypropylene (PP) bags, where constant heat sealers work well with gusset bags, poly cello films, coated Kraft papers, cellophane, waxed paper, mylar, coated polypropylene (PP) and other thick materials

Direct Heat SealersAre bag sealers safe to use? – Impulse bag sealers heat up and cool down in just seconds, making them safe to handle and use. Direct heat (aka constant heat) sealers get very hot and stay hot. Using a direct heat sealer does require the operator to be mindful of the hot sealing jaws.

How hard is a bag sealer to use? Bag sealers are extremely easy to set up and operate. Most allow you to set the sealing time and some the sealing temperature. These sealers, in most cases, are as easy to use as a pair of scissors. Very little training is required.

Which bag sealer should I buy? There are two factors to consider. First, what types of bags are you sealing? An answer to that question will determine if you need an impulse sealer or a direct heat sealer. Second, what is your packaging volume? If your volume is low, a hand sealer should be fine. If your volume is high, you may need a more robust machine like a foot sealer.

What are the power requirements? Most bag sealers that we sell run on a 110-120 volt system. This means if you are in the US or Canada, they should be able to be plugged into any standard outlet.

These are some of the most common questions we receive, but we receive several other less common questions every day. If you need more advice or answers to other questions, please feel free to give us a call at 1-800-658-8788. We have years of experience with these machines and would sincerely like to help you out. You can find our entire selection of bag sealers here. Feel free to post your questions as a comment.

Sealer Sales KF-300CS & KF-200CS Heat Sealer Review

Wednesday, March 6th, 2013

Sealer Sales KF-200CS & KF-300CS Direct Heat SealersWhen it comes to sealing thicker bags shut, such as cellophane, coffee bags, coated aluminum and Kraft paper, you are probably going to need something a little tougher than your standard impulse bag sealer. That is where direct heat sealers come into play. Two of our most popular direct heat sealers are the KF-200CS (found here) and the KF-300CS (found here) from Sealer Sales. These machines are similar in every way except the sealing width. So is the KF series direct heat sealers a good match for you? Read on!

Impulse sealers are extremely popular tools for sealing bags shut, often made from materials such as polypropylene and polyethylene. Impulse sealers are designed to be quick, safe to operate and efficient. The only downside with impulse sealers is that the often can’t handle the thicker stuff, unless you go with a double impulse sealer (often more expensive). For this reason, direct heat sealers (often called constant heat sealers) fit the bill.

Direct heat sealers are continually on and produce a lot of heat. The result is the ability to quickly seal thicker bags shut such as those made from cellophane, Kraft paper and coated aluminum. The KF-300CS is 12″ wide and the KF-200CS is 8″ wide. This is enough width to seal most retail food bags and other thicker bags. Both models feature an adjustable temperature control. The seal produced by both of these sealers features a nice serrated pattern (horizontal lines) that is 15mm thick.

These sealers do produce a lot of heat. As a result, both of these sealers have had their jaws coated in PTFE, which is a non-stick surface much like what you find in a pan. This helps the sealer to seal the plastic shut without sticking to it. The design works remarkably well and is very fast, taking just seconds to seal a bag shut.

Because both of these sealers feature a portable handheld design, they are extremely easy to use, maneuver and operate. They are also great for use with odd sized packages and material. An included stand helps to keep the sealer in place when not in use or in place while packaging. Rubber handgrips help to protect the operator from the heat.

Here is a video demo of the KF series of direct heat sealers in action:

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One thing to keep in mind while using either the KF-300CS or the KF-200CS is that they get very hot. They take about 5-15 minutes to fully warm up and take several minutes to cool back down. Do not touch the jaws at any time as you could seriously burn yourself. As long as you take the proper precautions, you will be very happy with these direct heat sealers.

As is the case with most Sealer Sales products, both the KF-300C and KF-200CS are solid products. They are made using high quality metal products including the jaws and the handles.  If you need something a little bigger than 12″, you may want to consider using the 16″ FKR-400 bag sealer found here. You can find our entire selection of bag and hand sealers here. Please feel free to call us at 1-800-658-8788 with any questions.

Direct Heat Sealers vs Impulse Sealers – Which Should You Use?

Wednesday, January 23rd, 2013

If you are shopping for a bag sealer, you have probably noticed that they seem to come in two different flavors. These are direct heat sealers and impulse sealers (found here). The type of sealer you purchase really depends on the type of bag you are trying to seal. Both types of sealers are designed to quickly seal bags shut for packaging purposes. At ABC Office we offer both types of sealers. I would like to discuss the difference between the two technologies and help you determine which type you should use.

  • Direct Heat Bag SealerDirect Heat Sealers (aka Constant Heat Sealers) – These sealers use constant heat to seal plastic shut. This usually involves both sides of the sealing jaw. This means that the jaws are constantly hot. These types of sealers are excellent for use with sealing thicker materials. Materials that are ideal for use with direct heat sealers include gusset bags, poly cello films, coated Kraft papers, cellophane, waxed paper, mylar, coated polypropylene (PP) and other thick materials. Because direct heat sealers remain hot while it use, a little extra caution is urged to prevent burns.
  • Impulse Bag SealersImpulse Sealers – These sealers don’t need to warm up. They use impulses of electricity to quickly heat up and seal a bag shut. Once the sealing process is complete, impulse sealers quickly cool down. These types of sealers are very convenient because they can be immediately used and the chance of being burned is minimal. These types of sealers are perfect for use with thermoplastic materials. This includes those made from polyethylene (PE) and polypropylene (PP). Impulse sealers can be used with bags and plastics such as padded mailers, foil, coated bags, Kel-F, Polyethylene, Polyurethane, Pilofilm, Polyvinyl Alcohol, Polyvinylchloride, Nylon, Sara, Mylar, Tyve, Polyflex and bubble packs.

Both direct heat sealers and impulse sealers come in different designs, depending on the size of the bag, the volume you are working with and the usage. Here are the different types of sealers:

  • Hand Sealers – These sealers look a lot like an I-bar sealer and are extremely portable and easy to move around. These sealers use impulse-sealing technology and come in different lengths. Most can seal film up to 10 mil thick.
  • Foot Sealers (aka Pedestal Sealers) – These sealers are ideal for continuous sealing operations and situations where both hands are needed to position bags. They usually have some sort of foot pedal that can be pressed to bring down the sealing bar. You can find foot sealers in both impulse and direct heat designs, depending on what you are sealing. Most foot sealers handle film up to 15 mil thick. The heavier-duty direct heat sealers can often handle 20 mil bags.
  • Double Impulse Sealers – These are the toughest impulse sealers you can buy. These include two sealing bars (top & bottom) and can be used with film up to 20 mil thick. These sealers are ideal for heavy duty projects and applications.
  • Sealers w/ Cutters – These sealers are designed to quickly seal a bag shut and then cut off the excess plastic. The cutting blade is usually built into the sealing arm of the sealer.
  • Automatic Sealers – These are heavy-duty sealers designed for continuous operation throughout the day and come in semi-auto and fully automatic designs. They usually sit on a table or countertop. These are designed to be programmed to accommodate the film you are using and then repeat the seal over and over again.
  • Continuous Band Sealers (found here) – These are the fastest bag sealers you can buy. They are designed to seal bags on a mass scale and use a conveyor-style system to quickly seal bags shut. These come in horizontal, vertical and tilted designs.

There are a few things you will want to keep in mind when picking a bag sealer. First, you will want to determine the type of film you are using and establish whether you need a constant heat sealer or an impulse sealer. You will then need to determine the speed that you need to package. You will also need to establish the maximum sealing length you need and how wide you need the seal to be. The nichrome sealing wire, depending on the model, comes in 2mm, 3mm, 5mm, 8mm or 10mm sealing widths.

We carry several different brands of bag sealers. We have great luck with models from AIE, SealerSales and Traco. If you need additional assistance with finding a machine, or if you have some questions, please give us a call at 1-800-658-8788.  You can find our entire selection of direct heat and impulse bag sealers here.

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