Band Sealer

1. What Is A Band Sealer?

A band sealer is a device that can seal the mouth of bags that are made of thermoplastic material through heat sealing, it can seal bags continuously since it is equipped with a conveyor belt, and this machine is always used for high production volumes. Band sealers are usually present in the pharmaceutical Industry, food manufacturing industry, chemical industry, agriculture industry, and so on.

2. What Are Different Types Of Band Sealers Available For Consumers?

In terms of different heights and sealing directions, the band sealers can be divided into vertical band sealers and horizontal band sealers.

Vertical Band Sealer

Vertical band sealer, as the name shows, the bags are sealed by this machine in a vertical direction. This type of band sealer is equipped with an adjustable stand, so the height of the machine can be adjusted, which makes it more suitable for all kinds of bags that are different in size.

Horizontal Band Sealer

Different from vertical band sealer, the movement of bags in horizontal band sealer is in a horizontal direction, it is more suitable for sealing small bags, for instance, snack bags. But, the oblique angle and the height of the horizontal band sealer are adjustable, so this machine can also seal a large range of bags.

Band Sealers With Nitrogen Flush

The working principle of this type of band sealer is a little different from the other two types, it is to fill nitrogen gas into the bags and then do the sealing operation. This type of band sealer can have a good effect in protecting the freshness of the products inside the bag, so it is suitable for sealing food bags.

3. What Are The Differences Between Vertical Band Sealer And Horizontal Band Sealers?

Even though the purpose, components, and working principle of vertical band sealer and horizontal band sealer are the same, the two types of band sealers also have many differences in other aspects, which will be explained in detail.

Aspect	Vertical Band Sealer	Horizontal Band Sealer
Appearance
Direction	The bags which are sealed by vertical band sealer is in a vertical direction.	The bags are sealed by horizontal band sealer in a horizontal direction.
Suitable bags	The vertical band sealer is more suitable for sealing stand-up pouches. It can seal bags that pack small products such as powder, grains, coffee, and liquid products.	Compared with vertical band sealer, the horizontal band sealer is more suitable for bags whose thicknesses are low because they are laying flat when they are sealed. And the horizontal band sealer is not suitable for sealing liquid products.
Height	The vertical band sealer is higher than the horizontal band sealer because it is equipped with an adjustable rise-and-down stand.	Comparatively, the horizontal band sealer is lower than the vertical band sealer.

4. What Are The Functional Parts Of Band Sealer?

No matter whether vertical band sealer or horizontal band sealer, they have similar structures, and their components of them are almost the same. Next, you will learn about the functional parts of a band sealer, which are shown in the picture below.

Control Panel

The control panel contains a power switch, heat switch, temperature controller, and conveyor speed adjustment. The function of the control panel is to let the operator turn on and turn off the machine, besides, setting up all the parameters such as temperature and speed.

Heating Block

The heating block is the component that heats the mouth of bags, to let them realize thermal deformation.

Cooling Block

The cooling block is to let the bag cool down, when the bag totally gets cool, the sealing operation is finished.

Emergency Stop

If the operation occurs an error that leads to a high temperature, you can click the emergency stop button to end the working press of the machine, this component can ensure the safety of both the machine and the operator.

Conveyor Belt

The purpose of the conveyor belt is to deliver the bags depending on their constant movement of itself.

Drive Shaft

This part is of vital importance, it consists of a driving shaft and driven shaft, and it helps the conveyor belt move so all the working steps can smoothly go on.

Height Adjustment Button

It is used to adjust the height of the machine, to let it suitable for sealing different kinds of bags.

Belt Adjusting Knob

The belt adjusting knob is to adjust the angle of the conveyor, the purpose of this operation is the same as that of the height adjustment button.

Embossing Press Button

As the name shows, this component is to add embossing to the mouth of bags.

5. What Is The Working Principle Of Band Sealer?

As mentioned band sealer seals bags through heat sealing, but do you know why? Do you know what is the working principle of this machine?

To be honest, the working principle of band sealer is simple, when the temperature is high enough, the mouth of the bag begins to heat distortion, and when it is cooled down, the mouth of the bag will be coagulated and the sealing process is completed.

In the beginning, the conveyor belt delivers the bag to the heating blocks, which will constantly heat it to let the temperature rise to the melting point, when the heating process is finished, the bag is moved to the cooling block, here, the temperature drops and the heat dissipates, the mouth of bag begins to congeal, and then the is the embossing operation, until now the sealing operation is realized, then this bag is moved away, the next bag is delivered and the above process will be repeated.

6. What Is The Operation Process Of A Band Sealer?

After learning the structure and working principle of band sealer, but actually, you still don’t know how to operate this machine, read the next part to learn the operation steps.

In the beginning, turn on the power, and wait for a short time, to let the machine enter the preheating stage.

Then, adjust the height and angle of the conveyor, to let it fit the size and thickness of the bags which need to be sealed.

Adjust the conveyor speed and adjust the temperature controller button, the temperature is determined by the materials you need to seal.

Adjust the embossing press button, this is based on the thickness of the bags which are going to be sealed.

Next is the bag feeding operation, put the bag on the conveyor and let the machine pull your bag, and then the machine will do the heating operations.

When the heating process is at the end, turn off the heating switch, and the bag is moved to the cooling block, to let the bag cool down. Until now, the sealing process is finished.

And after that is the next cycle, repeat the operations from the bag feeding step, and keep so on, to achieve continuous sealing.

7. What Are The Strengths Of A Band Sealer?

Whenever you decide to purchase the equipment you look for the strengths of a particular type of machine. Band sealers are used worldwide due to their highly efficient and precise sealing. Some of the strengths of band sealers are

S. No	Features	Description
1	Precision	Band sealers replace the traditional sealing method has high precision to produce quality products. Packets, bags, and pouches are sealed with fine finishing that makes every product look even in formation.
2	Easy Operation	Band sealers are highly automated, and no special training is required for the operator. It has easy handling options, and every individual can easily understand the process.
3	Cost Efficient	The prices of band sealers are in a reasonable range, and the machine will not consume too much power or other materials. Using a band sealer, can have a large-scale production with little investment.
4	Durable	Stainless steel construction makes band sealers highly durable that the body does not corrode easily and can last for a longer period. The body is chemically resistive and no external factor can harm the shell.
5	High Speed	Speed is one of the main advantages of a band sealer. Depending upon the usage and worker efficiency more than 20-25 bags can easily be sealed in a minute which makes a bigger count while having large production domains. The speed can also be varied by regulating the motion of the conveyor.
6	Easy Maintenance	Band sealers are easy to understand and require less and more efficient maintenance. The materials are also easily available and can be replaced in no time when needed
7	Multifunctional	One of the most important strengths that we can get from a band sealer is that we can seal different sizes of bags, pouches, and films. A single can be used for all products lying between a specific width.

8. What Are The Applications Of Band Sealers?

A band sealer is used worldwide in industries where a high volume of sealing is carried out. Industries like food, cosmetics, and pharmaceutical mostly use these sealing options to save their product and allow them to last long. Some of the applications of band sealer are:

S. No	Application	Detail
1	Packaging Industry	Band sealers are mostly used in the packaging industry because of the excess traveling and shipment of products. This type of sealing provides safety to the products and allows them to reach their destination in a safer manner.
2	Food Industry	Food products like pre-baked goods, grains, dry fruits, chocolates, etc. require special protection to not be contaminated. These band sealers are used in the food industry to keep the food items preserved and have a decent exterior look.
3	Pharmaceutical Industry	Pharmaceutics is also another important place where the sealing of products is carried out by these band sealers. The pouches of milk, calcium supplements, and others necessary to be sealed properly before they are delivered to the customer.
4	Chemical Industry	Chemical products like mortars, powders, and dyes require proper sealing of their pouches and bags. Therefore, band sealer is also having an application in this industry.
5	Agricultural Industry	Seeds, hemp, pet foods, and bird seeds are some of the examples that are sealed using a band sealer in the agricultural sector. Band sealer allows these products to remain safe and can be used at any time without any chemical changes.

9. What Kind of Bags Can You Seal By Using A Band Sealer？

Perhaps, most people do not know what kinds of bags can be sealed with a band sealer, they just call these bags plastic bags, but actually, bags that are made of different materials also have different features, in the next part, you will know about some heat sealed bags.

Poly Bags

Flat poly bags, flat bags on rolls, and reclosable poly bags, these are all belong to poly bags, which are made of polyethylene, polyethylene, and polypropylene, these bags are usually used to pack food,all kinds of poly bags can be heat sealed.

Freezer Bags

Freezer bags are used to pack frozen products, so they are made of thick bags, to prevent the products from environmental elements.

Anti-Static Bags

Anti-static bags contains a special additive that can prevent static, so this type of bag can be used to pack electric elements, and these bags are sealable.

Vacuum Bags

The diverse vacuum bags can also be sealed by band sealers, after the air inside the bags is extracted, they can be heat sealed.

Laminated Bags

Laminated bags, or you can say stand-up bags, these bags are made of various types of materials, and they have a certain degree of functionality.

10. How To Maintain A Band Sealer?

No matter how good the machine is, it needs to be maintained well to extend its service life, the band sealer is not an exception, so you need to learn some points about how to do the maintenance.

• The basic point is to check your band sealer regularly, to check its temperature and the functional parts.
• Every time before you use the band sealer, check whether the screws are loose.
• Clean the surface and grooves of the machine, don’t let dust hide in any corner of the machine.
• Swipe lubricating oil on the driving devices regularly, to prevent them from the risk of being worn, which can extend the service life of the machine.
• When you need to wash the machine, remember that the electric components of it can not contact with water, if they are wet, there may be a risk of damaging the machine.
• When you need to clean the machine or replace some components, don’t forget to check whether the power is on, if it is, turn it off.
• The conveyor belt is a type of consumable, you need to change regularly, to avoid it breaking suddenly while the machine is working.

11. What Are The Malfunctions And Solutions Of A Band Sealer？

It is normal for the machine to have problems in the process of working, when this situation occurs, just take it easy and try to solve the problem by yourself. Next, you will learn the common malfunctions and how to resolve them.

Problems	Causes	Solutions
The conveyor belt is off track	The driving shaft isn’t in accord with the driven shaft	Click the conveyor belt adjustment button to adjust it
The motor can not be controlled which results in high speed	The speed controller occurs a problem	Replace the speed controller
Temperature can not rise or be controlled	①Heat switch occurs error ②Temperature controller occurs error	①Replace heat switch ②Replace temperature controlled conveyor
Conveyor belt does not move at the same speed as sealing belt	The conveyor belt doesn’t have enough tension tighten	Tighten the conveyor belt embossing
Embossing is unclear	The embossing press roller is damaged	Replace the embossing press roller sealing
Sealing effect isn’t good	The temperature isn’t proper, it is too high or too low	Click the temperature controller to adjust the temperature
Sealing belt breaks	①The tension is too high ②The sealing belt escapes track ③There are creases on the sealing belt ④There are remained film on the sealing belt	①Adjust the screw which is on the driven shaft to reduce the tension ②The same as the last paragraph ③Install the sealing belt again and ensure there is no crease ④Clean the surface of the sealing belt
The machine does not work	①The connection is broken ②The speed regulating board is faulty	①To tight the connecting screws ②Replace the speed regulating board

12. What Factors Should You Keep In Mind When Choose A Band Sealer?

If you want to choose a band sealer, there are some factors that are necessary for you to consider, which will be listed below.

Model Of Band Sealer

First, you need to consider which model of band sealer should you choose, in the above text, the vertical band sealer and horizontal band sealer have been compared form different aspects, which can give you a reference. You need to think carefully, choose the model according to your demand, and what kinds of bags do you need to seal.

Packaging Bags

And you need to consider the bags which you need to seal by using a band sealer, the material and thickness of the bags, these factors also influence your choice.

Durability Of Band Sealer

The durability of band sealer,or in other words,the quality of the band sealer,it is matter-of-course that you want a machine with a long service life.However,a machine can not tell you that whether it is durable,so you need to consider the brand,the reputations of different brands.

In fact, the most effective method is to look for various brands of band sealers and research their reviews of them, the reviews will provide you with direct using experience from customers.

Determine A Budget

Another important factor is your budget, it is not necessary to invest a large amount of money in a band sealer, you need to determine a budget before you purchase this machine. Referring to the market price of the band sealer, the budget should not be above too much of the market average price.

13. Band Sealer VS Hand Sealer-Which One Is Right For You?

When it goes to bag sealing machines, the most common types are band sealers and hand sealers, as is well-known that the two machines are all based on the heat sealing principle. But, what are the differences between them? Which one is right for you?

In terms of size

You can directly observe that the size of the band sealer and hand sealer has a large difference, the hand sealer is much smaller than the band sealer, and it looks like a book sewer. As a result, the hand sealer is very portable and convenient to be carried. Therefore, if you regard size as an important factor in choosing a bag-sealing machine, you can choose a hand sealer.

In terms of speed

There is no doubt that the band sealer is better than the hand sealer in terms of speed because the band sealer is operated automatically while the hand sealer is operated manually. On the other hand, the band sealer is equipped with a conveyor belt, which makes it realize continuous bag sealing, but hand sealer seals bags by hand, so the speed of it is slow.
So, if you need a high-speed bag-sealing machine, the band sealer is a better choice for you.

In terms of production capacity

To a certain degree, production capacity is directly proportional to the production speed, the faster the speed is, the larger the capacity is. As mentioned in the last paragraph, the band sealer is faster than the hand sealer because it can seal the bag constantly. So, the production capacity of band sealer is much larger than that of hand sealer.
If you have a demand for large-scale production, you can choose a band sealer, but if you only need to seal a small scale of bags, for instance, just for family or restaurant demands, you can choose a hand sealer.

In terms of cost

In most cases, the price of band sealer is higher than hand sealer, and its consumption of power is also higher than hand sealer. As a consequence, the cost of using a band sealer is higher than using a hand sealer, if you want a low cost, you can buy a hand sealer.

Conclusion

Band sealers provide high-quality sealing options to industries and allow the customer to get a decent and effective look. Many industries are now preferring band sealers to increase their productivity and meet global demand. This article in detail explains all about band sealers but still, if you find any difficulty we are here to guide you 24/7. Feel free to ask any question at any time.