Category Archives: Instruction

Help! My Sealer Isn’t Working!

Q:  I bought a sealer and now the sealer  isn’t working!  Can you help me?

A: Why, of course we can! We are the sealer experts and can assist you with any sealer problem.  Most often, the problem is a simple fix.  All you need is a screwdriver, unplug your machine and follow our quick little troubleshooting steps.

Using a screwdriver, loosen the PTFE metal plate and untuck the PTFE cover.

1. Is your heating element / wire broken?
– This is the wire (flat or round) that heats up to seal or cut the bag/film.  Remove the PTFE cover and check that the wire is not discolored, bent, or broken.

Check the wire. Make sure the wire runs fully across the sealer.

2.   Do you hear the “click” of the microswitch activation?
The microswitch allows the electricity to pass to the heating element which in turn heats up and seals your poly material.  Sometimes the microswitch moves out of alignment during shipping and needs a simple adjustment to get the unit back to proper working order.

Remove the bottom plate to locate the microswitch

If you do not hear the “click” of the microswitch, you will want to locate the microswitch and make sure the arm operating bracket touches the microswitch when the sealer arm is brought into contact with the sealer base.
Carefully push the microswitch level to ensure that the level comes in contact with the microswitch trigger.

Carefully push the microswitch level to ensure that the level comes in contact with the microswitch trigger.

Mounting Springs hold the elements on both ends.

3.  Are the mounting springs (holding the elements) in tact and in good condition?  Make sure that the spring the element mounts on is intact. Replace if damaged.  Please check also that the mounting spring is not rusted or worn in any way as this will prevent the element from conducting heat.

Make sure there are no loose connections to the timer.

4.  Does the timer light come on when you bring your arm down to meet the base of the sealer?  The light on the timer should come on briefly when the seal bar is brought down for sealing. If it does not come on, there maybe some loose wires or the timer may need replacing

Glossary of Packaging Terms

We have created a couple of glossary reference guides for our distributors.  There are so many terms to remember that we sometimes we forget too!

Click here for our A to Zs of Packaging

Click here for our Glossary of Flexible Packaging Materials

Shrink Wrapping 101

Why Shrink Wrap?
Shrink wrapping is an excellent and easy way to package a product without the need to purchase a lot of expensive equipment.   Shrink wrapping provides:

  • Crystal clear sealed packaging
  • Protection from dust and moisture
  • Tamper proof packages

What Do I Need to Shrink Wrap?
All you need to shrink wrap is 

  • Shrink material which comes either as rolls of film or shrink bags
  • Hand impulse sealer (w/round wire), and
  • Heat gun

How Do I Shrink Wrap?

  • Insert your product between the fold of film or into a shrink bag
  • Using your sealer, cut off excess film and seal the ends of your film closed
  • Shrink the film on all sides using a heat gun

How Do I Determine the Right Film?

  • Measure the width and height of your product and add 5-10% to the measurement.  This provides you with your minimum shrink bag width.
  • Measure the length and height of your product and add 5-10% to the measurement. This provides you with your minimum shrink bag length.
  • For shrink film (usually sold as centerfold film), take the smallest figure of the two to determine the shrink film size needed.
  • If the size you needs is not available, a larger size can be used because shrink films will shrink up to 40% in all directions

Need to Shrink Wrap Faster?
If you are looking to shrink fast your product even faster, we have L-bar sealers which cut and seals two sides of the film in one motion.

YC-300HL  – 12″ x 18″
YC-450HL – 18″ x 18″
YC-600HL – 24″ x 32″

We also carry self-contained L-Bar Sealers

W-350L – 14″ x 20″
W-500L – 20″ x 26″

For faster shrinking, we carry a shrink tunnel, CN-4520


If you are unsure what you need, please give one of our distributors a call and they can help determine the correct equipment for your needs.


We created this troubleshooting guide to help with our most frequently asked questions regarding sealers.

Impulse sealers (hand, foot, automatic) work in a similar manner – often, if you are having a problem with your sealer, the solution can be found in the following parts:  heating element, PTFE adhesive, PTFE cover, microswitch, mounting spring, and/or timer.  Let us know if you have a problem that isn’t listed in this guide and we can try and assist you.

  1. Check element and PTFE cover and adhesive.
    • Element: This is the wire (flat or round) that heats up to seal or cut the bag/film. Remove the PTFE cover and check that the wire is not discolored, bent, or broken.
    • PTFE Adhesive: This is the 1/2″ piece with an adhesive backing UNDER the heating element.  It should extend past the seal area 1/2″ on either side because it is the barrier between the metal machine and the metal heating element. For the PTFE adhesive, you must replace the bottom sealing strip whenever you change the element.  The adhesive serves as a barrier between the heating element and the sealer’s body.  When the sealer’s heating element has burned through the bottom adhesive and arc’ed on the sealer’s body, the element will break as well as destroy the timer.
    • PTFE Cover: The PTFE cover that goes over the heating element must be whole to prevent the plastic bags or film from sticking to the element. For the teflon cover, we recommend changing the cover BEFORE it burns through.  As the cover wears, you will see a discoloration where it comes into contact with the element, you may also notice that your element is sticking to the thermoplastic material you are sealing.  You can maneuver the cover back and forth to allow the element to come into contact with the unused portions of the PTFE cover. If you are sealing/cutting a thicker plastic material (higher amount of heat) you may go through a lot of PTFE covers.
    • We highly recommend having these parts in stock since they do wear and tear.  To purchase a replacement part which would include all three items, visit our site here.
  2. Listen for “click” from microswitch when pushing bar down. This click should occur right before the upper bar comes into contact with the lower. If there is no click try the following:
    • Hand Sealer: Slightly bend metal switch lever so that when arm of sealer is brought down, the lever makes contact with microswitch and a click can be heard.
    • Foot Sealer: Small bolt for limit switch must be tightened as needed to make contact with the microswitch.
    • Auto Sealers: A 3.5″ screw that is mounted on upper jaw must be loosened so that it will make contact with microswitch which is mounted on left side of hinge bracket.
    • Microswitches can be purchased here on our site.
  3. Mounting Spring: Make sure that the spring the element mounts on is intact. Replace if damaged.  Please check also that the mounting spring is not rusted or worn in any way as this will prevent the element from conducting heat.  Mounting springs can be purchased here.
  4. Timer Light: The light on the timer should come on briefly when the seal bar is brought down for sealing. If it does not come on, the timer PC board probably needs replacing.  Timers can be purchased here, but contact us if you cannot find the timer you are looking for.

Determining the Right Band Sealer

When should you buy a band sealer?  If you are finding that a hand or foot sealer cannot meet your production needs, a band sealer may be the right option for you.  Band Sealers will seal and convey your bags via constant heat. Take a look at our video of how a band sealer works.

However, before deciding on a band sealer, ask yourself the following questions:

Q:  Do you already have your bag?
A:  Make sure you have your bag before looking at sealers.  The bag material will determine what sealer will work.

Q:  Should you purchase a band sealer?
A:  Our band sealers can seal materials 3mil-10mil meaning band sealers will seal just about any thermoplastic material including PE, PPE, stand up pouches, gusseted bags (used for coffee and tea), and moisture barrier bags.  Because bags are placed on a conveyor system, the width of the bag does not matter. If you are looking for increased efficiency in your packaging process, then we recommend looking into a band sealer.

Q:  What is the difference between a horizontal and vertical model?
A:  Vertical band sealers typically seal small solid products (ex:  powders, grains, coffee) and liquids.  In addition, if your customer will be packaging his/her product using a stand up pouch, a vertical band sealer will work best.  Horizontal models work best when you can lay flat your pouch.

Horizontal Version

Horizontal Version

Vertical Version

Q:  Do you want any printing on your bags?  Dry-coding vs. embossing?
A:  Our band sealers have the ability to emboss or dry ink code bags. Embossing continually embosses characters directly on the bag.  Embossing shows up best on foil bags. Dry ink coding prints using a roller with heat activated ink transfers.

Q:  Is there a preference of production running right to left or left to right?
A:  Our band sealers can seal in a right to left direction or left to right direction.  Choose the right sealer based on your preferences.

Visit our website for more information!


We will continue to post additional new videos of our products but see our links to current videos.  You can also visit our YouTube Channel here or visit our website.

How to Use a Hand Impulse Sealer

How to Use a Foot Sealer

Automatic Foot Sealer Demonstration

Automatic Sealer Demonstration

Band Sealer (Horizontal) – CBS-880 Demonstration

Band Sealer with Dry Ink Coding (HL-M810 Demonstraton)

Continuous Band Sealer (Vertical) with Dry Ink Coding (HL-M810II) Demonstration

Continuous Band Sealer (Medium Duty) with Dry Ink Coding (FRM-1120C / FRM-1120W)

Direct Heat Sealer (W-300DA) Demonstration

Portable Direct Heat Sealer Demonstration

DZ-280/A SINBO Vacuum Sealer

WVT-455T Vacuum Sealer for Embossed/Channeled/Gusseted Bags 

MY-380F Dry Ink Coding Video Demonstration

HP-280 Semi Automatic Imprinter Video Demonstration 

ColumnAir Packaging – for wine bottles and toner cartridges

How to Use the SINBO (DZ-280/A) Vacuum Sealer

The SINBO Vacuum Sealer is the ONLY household vacuum sealer using standard vacuum bags (not the FoodSaver type of bags).   Follow our easy steps below to achieve the best vacuumed product.  We also have a video demonstration you can watch.

Step 1.  Turn the Power Switch Off.  Open the top cover by lifting the lid.  If the lid is locked, push down on both left and right corner spots marked “lock” (part #1) to release the cover.
Step 2.  Test the Seal Process.  Practice a few seals before beginning the vacuum process to determine the time setting needed.  We suggest starting at either 3 or 4.  Note that after sealing a few packages, you may have to drop your setting down by 1 or 2 settings as it will take less time to seal additional bags.
Step 3.  Start the Vacuum Process.
(a) Extend the snorkel (nozzle) (part #4) by pulling the snorkel slide (part #2) forward until it locks into place.
(b) Close and lock the cover by pushing down on the right and left side locks (part #1).  You should hear a “click” when the lid is locked.
(c) Turn on the power switch and the vacuuming process will begin.
Step 4.  Start the Sealing Process – “Double Press Method”
(a) After you are satisfied with the vacuumed bag, momentarily push down on the seal bar (part #4) and release.
(b) Quickly push down again on the seal bar with even pressure until the seal light flashes and you hear a beep indicating the seal is complete
Note:  We suggest the “double press method” for attaining the best seal as this prevents trapping the snorkel in the sealing area.  We want to ensure the snorkel fully retracts.
(c) Push down on both the locks until the cover releases and remove your bag.
Step 5.  Repeat for Additional Bags.  To seal your next bag, turn the power switch off and start at Step 3.


  • Make sure the product in the bag is placed evenly throughout the bag – best placement is in the center of the bag (this will help ensure your product is not blocking the snorkel.
  • While vacuuming the bag, you may need to rub the layers of the bag between your fingers if the bag is blocking the snorkel
  • Note:  You will notice a change in vacuuming noise when the snorkel is blocked


  • When the SINBO vacuum sealer gets too hot from over usage, you will hear a warning sound and the seal will become irregular.  Turn the sealer off and allow the sealer to cool.  The warning sound is to protect the machine from overheating.
  • Do not try and extend the snorkel when the cover is down
  • Keep the bag from blocking the snorkel
  • Snorkel must fully retract before sealing the bag
  • Turn off the machine before starting the next bag

MAINTENANCE – for your Hand Impulse Sealer

Regular maintenance of your impulse sealer will ensure the longevity of your sealer.  After using between 1,000-5,000 seals, it is normal for the heating element (wire) to break .  The number is dependent on your timer setting and will vary from user to user.  Regularly replacing your sealer’s heating wire, PTFE adhesive (sticky brown protective skin under the element), and the PTFE cover (brown protective skin over the element) is essential for your sealer’s health and well-being.

An impulse sealer’s PTFE adhesive serves as a barrier between the heating element and the sealer’s body.  When the sealer’s heating element has burned through the bottom PTFE adhesive and arc’ed on the sealer’s body, the heating element will break and may also damage the timer.

**When replacing the heating element, you MUST also replace the bottom PTFE adhesive.  Make sure the PTFE adhesive is 1/4″ and 1/2″ past the machine on both ends.  This prevents the heating element from coming in contact with the sealer’s body.

Download our instructions on how to change your sealer’s heating wire and PTFE cover and adhesive here.

We carry replacement kits for all our sealers.   If you do not find what you are looking for, contact us!

Impulse Sealers – How to Achieve the Best Seal

Good seals require not only enough heat to melt a bag together, but also enough cooling time to allow the seal to set.  Our most common complaint is that a sealer is not creating a good seal and 99% of the time, the operator is not holding the arm down long enough to allow the seal to cool and set.   Manual impulse sealers such as your hand or foot sealer require a congeal or dwell step to create a proper seal on your bag or film.   To achieve the best seal, hold the arm or upper jaw of your sealer down for an additional 2-4 seconds after the signal light has turned off to allow the seal to cool and set.

Follow our simple instructions below and you will get great looking seals!
1)   Set the timer at 3 and place your bag on the seal surface.
2)  Bring the upper jaw and seal arm down on the bag and hold in place until the  timer light goes out and continue to hold the upper jaw or seal arm down for an additional 2-4 seconds to set or congeal the seal.
3)  Lift the upper jaw or seal arm; test the bag or film.  If the seal is strong, the timer setting is correct.  Increase or decrease the timer setting slightly and test again until you achieve the perfect seal.

**Higher timer settings and thicker materials require longer congeal times.
**Following the above instructions will lengthen the life of all the parts.