Bag Closing Machine:The Complete Guying Guide In 2025

1.What is the bag closing machine?

The machine used to close bags is called the bag closing machine. It is mostly involved in closing bags of mainly grain, chemicals, sugar feed, seed, corn, coffee, fertilizer, minerals, grains, feed, salt, grocery, and other ingredients also. The material used to close bags could be composed of paper, cotton, linen, burlap, jute, and plastic materials.

2.What types of bag closing machine has been used to close open bags?

To learn the types of bag closing machine,first you need to know from which aspect to distinguish these machines,in general,there are two aspects:automation and thread.
In Terms Of Automation

According to automatic degree,bag closing machines can be divided into three categories:fully automatic bag closing machine,semi automatic bag closing machine and portable handheld bag closing machine.

Fully Automatic Bag Closing Machine

Fully automatic bag closing machine,as the picture shows,is a little large in size,so it can close large sized bags such as rice bags, flour bags,fertilizer bags,etc.The fully automatic bag closing machine is durable and hard,although it is very big,it is easy to operate.

The machine can turn on and turn off automatically,and it can also realize bag feeding operation by itself,which can largely save human labor.The fully automatic bag closing machine is suitable for large scale bag closing demand.

Semi Automatic Bag Closing Machine

Semi automatic bag closing machine is much smaller than the fully automatic one,is more convenient to carry and will not occupy too much space.Semi automatic bag closing machine can close bags in a high speed,which can improve your production efficiency.It can finish most of the operations during the working process,but it also need some human operations such as powering on,powering off and bag feeding.

Portable Handheld Bag Closing Machine

Portable handheld bag closing machine is the most convenient device among the three types of machines,it has a handle which can be gripped by operator,the operator need to hold the machine to complete the bag closing operation.The operation process of portable handheld bag closing machine is quite simple,and the speed of it is fast.
However,because this machine need to be held to use,it can be very exhausting for the operator if the bags which need to be closed are too many,then it will influence the production efficiency.Therefore,this kind of bag closing machine is more suitable for closing small amount of bags,do not use it for large scale production demand.

In Terms Of Thread

According to the form of thread,the bag closing machines can be divided into single thread bag closing machine and double thread bag closing machine.

Single Thread Bag Closing Machine

As the name implies，the stitch of this type of bag closing machine is single thread,this is also a types of portable handheld bag closing machine.The operation of single thread bag closing machine is easy,and it is equipped with a built-in chain cutter,is very convenient to be used.The single thread bag closing machine is used for closing bags which are made of light weight jute, burlap, cotton, linen, paper, or plastic.

Double Thread Bag Closing Machine

The double thread bag closing machine will provide high strength and tight bag closing.Bags which are closedby this type of machine will havedouble stitches, that is, they will be more stable than bags which have single stitches.The same as single thread bag closing machine,this machine is portable and convenient for operators to use.The double thread bag closing machine is mostly used to close all kinds of woven bags, paper bags, and jute bags.

3.What are the functional parts of bag closing machine?

Even though bag closing machine looks simple,it has many small components,which include panel,switch cover,convenient tube,handle,motor,gear seat,compressive bar,needle,press foot,faller gill,cover shell and oil injection hole.

The motor,oil injection hole and gear seat are the main parts of the bag closing machine,oil injection hole allows the motor oil enter the machine,motor provides motivation to the machine,gear seat is an important driving device,the working process  of the whole machine depends on these parts.
The compressive bar,needle,presser foot and faller gill are the components which help the machine close bags.The faller gill serves as a plate,presser foot is to help fix the position of bag,the compressive bar and needle are used to close bags,the open mouth of bags are stitched by the continuous movements of the two components.
And other components,switch cover,cover shell, and handle,they consists of the frame of the machine.All these components are of equal importance of the bag closing machine,none of them can be lacked.

4.How does a bag closing machine work?

Until now,you have already known about the components of bag closing machine,next you need to know the working process of this machine.

To be honest,the working process of bag closing machine is quite simple and fast,at first,the operator add the thread to the machine and set up all the parameters which are necessary for the working of machine.
After these operations,the machine is powered on,the operator put the bags on their positions,if the machine is a fully automatic bag closing machine,the operator doesn’t need to feed bags by hands.Then the machine begins to work,the needle takes thread and close the open mouth of bags by continuous hitting them up and down.
After the closing process of this bag is totally completed,take it away and repeat the bag feeding operation.All these working steps will not use too much time.

5.How can a bag closing machine benefit you?

Bag closing machines can help people quickly close bags,and they are widely applied for industrial usage,but,how can these machines benefit you?Why people like to use the bag closing machine?In this part,you will find the answers of these questions and explore the advantages of bag closing machine.

Convenient

This machine is very convenient for you,no matter what kind of bag closing machines,they can provide you good using experience,the machine can close bags and cut off thread automatically,you just need to add thread and set up parameters,which is much more convenient than closing a bag by hand.

Save Space

Except the fully automatic bag closing machine,other kinds of bag closing machines are designed compact,small in size,you can even put them in a corner in your house,in other words,the bag closing machine can save your space in general situations.

Low Cost

On the one hand,although bag closing machine is high quality and durable,the price of it is reasonable,it is absolutely in the range which you are affordable;on the other hand,if you need to use a bag closing machine,it doesn’t need to rent workshop or prepare expensive materials,therefore,the cost of bag closing machine is low,which can save your money.

Noiseless

Another advantage of bag closing machine is that it will not make loud noise during the working process.Different to large scale machines,bag closing machine are small and quiet,which is friendly to the ears of operator and can keep a good production environment.

6.What are the drawbacks when use a bag closing machine?

Everything has its own two sides,with so many benefits,the bag closing machine also has some shortcomings during the working process.

The body of the machine is made of metal,so the weight of bag closing machine is not light,even though the portable handheld bag closing machine,it is small but it isn’t very light.So,if you use a portable handheld bag closing machine,it may be a little tired if you use it for a long time.

In fact,some components of bag closing machine are easy to be worn because they need to move constantly during the working process,so you need to maintain or replace them regularly,which is a little inconvenient.

If you use a semi automatic or portable handheld bag closing machine,you need to do the bag feeding operation by yourself,but the machine is working at a high speed,you may get hurt by the needle if you aren’t careful when you move the bags.

7.What are the applications of  bag closing machine?

Since many industries have demands for bag closing,bag closing machines have a wide range of applications,such as food industry,chemical industry,agriculture industry,delivery industry,textile industry and so on.

Food Industry

Bag closing machine is widely used in food industry for packaging purpose,many food need to be packed by large jute bags,such as rice,sugar,salt,flour,vegetables,fruit,etc.These jute bags are big and heavy when they are completely filled,so they need to be closed by threads,which need to depend on bag closing machines.

Chemical Industry

Many chemical materials,for instance,cement,they also need to be packed by jute bags,paper bags or other kinds of bags,so they have to be closed by bag closing machines,which promote the application of this machine in chemical industry.

Agriculture Industry

In agriculture industry,there are also many bags need to be closed by bag closing machine,such as  fertilizer bags, seed bags and many other bags.As a result,bag closing machine is very common in agriculture industry because of its convenience.

Delivery Industry

And bag closing machine can be used in delivery industry,many bags which are stored in warehouses need to be sealed,with the large range of demand,this machine is frequently applied in delivery filed.

Textile Industry

If you often use woven bags,it is not difficult for you to find that there are stitches on the mouth of these bags,and other bags which are produced by textile industry also need to take a usage of bag closing machines,this is also a application of this machine.

8.Bag Closing Machine VS Bag Sealing Machine

The bag closing machine is a little similar to bag sealing machine,they have a common purpose to seal the mouth of bag,however,actually they are different in many aspects.To distinguish the two machines,you need to read the next part carefully.

	Bag Closing Machine	Bag Sealing Machine
Appearance
Function	Bag closing machine is to close mouth of bags with thread,to prevent products inside the bag from being leaked.	Bag sealing machine can give a tight seal for the mouth of bag,the seal is seamless,which can protect products from being influenced by air or other environmental elements.
Types	The types of bag closing machine have been mentioned in above text,there are five types of bag closing machines according to two aspects,they are fully automatic bag closing machine,semi automatic bag closing machine and portable handheld bag closing machine;single thread bag closing machine and double thread bag closing machine.	The bag sealing machines can be divided to two main types:continuous band sealer,pedal sealing machine and hand sealing machine,and the continuous band sealer also can be divided to two categories:vertical band sealer and horizontal band sealer.
Working Principle	The working principle of bag closing machine is that the continuous hitting of the compressive bar and needle,the needle takes thread to move,let it close the mouth of bag.	The working principle of bag sealing machine is quite different to bag closing machine’s,this machine use heat sealing to realize its function.The machine seals bags through the high temperature.
Application	The bag closing machine can be used in food industry,agriculture industry,textile industry,chemical industry,delivery industry and many other industries which are in need of bag closing.	Bag sealing machine is widely applied in pharmaceutical industry,food packaging industry,chemical industry,restaurant and many other industries.
Bag Types	The bag closing machine can be used to close jute bags,canvas bags,plastic woven bags,cotton bags,paper bags,etc.	Bag sealing machine can basically seal all kinds of plastic bags,such as PE plastic bags,LDPE plastic bags,HDPE plastic bags,MDPE plastic bags,PP plastic bags and other kinds of plastic bags.

9.What kinds of bags can be closed by bag closing machine?

In fact,some of you may be confused about how many kinds of bags can be closed by bag closing machine,the range of the bags may be a little misty for you,so in the next part,you will learn the categories of these bags.

Jute Bag

The most familiar kind of bag is jute bag,this kind of bag is commonly used in food industry,chemical industry,agriculture industry,delivery industry,building industry and so on.The bag closing machine usually be used to close jute bags.

Plastic Woven Bag

As is mentioned,the plastic woven bags also need to use bag closing machine to add stitches on them,these bags always used to pack sundries or be used for the purpose of moving house.

Canvas Bag

Canvas bags are widely used in your daily life since they are designed simple and convenient,meanwhile,they have large capacity.In the mouth and joint of canvas bag,there are always stitches which are added by bag closing machines.

Paper Bag

In many cases,paper bags are not be sealed,and they are not easy to be heat sealed,so if you have a demand to seal paper bags,you can choose bag closing machine to close the bags.

10.What are the cautions when using a bag closing machine?

Always put safety on the first when you operate a machine,when you use bag closing machine,there are also some points you need to notice,if you doesn’t comply with these point,there may be accident for you or the machine,these cautions are as follows:

When you add needle and thread to the machine and when you make adjustments,remember to ensure the power is off,or there may occurs accident.

Before turn on the power,remember to close all the cover shells,and when the bag closing machine is working,don’t touch the working parts of the machine,or you will be hurt.

When you finish using the bag closing machine,you need to clean up the dust on the presser foot,needle and compressive bar,if there are too much dust build up,may cause damage to the machine.

Check the components of the machine regularly,because these components are small,they need to be maintained carefully.And there are some components which are easy to be rusty,you should swipe them by tarpaulin.

11.How to troubleshoot the bag closing machine?

The bag closing machine is a simple machine,if there occurs malfunctions,the causes are simple in most cases,you can repair it just by yourself.Next let me introduce the malfunctions,causes and solutions for you.

Problem	Cause	Solution
Needle Bending	The closing material is too thick or the operation is too rough.	Ensure the correct distance of the needle and faller gill; Operate the machine in the right method.
The position of needle is too high	Improper depth of compressive bar	Adjust the depth of compressive bar
Stitch is too loose or too tight	Thread tension occurs problem	Adjust the tread tension according to the real situation
Tread breakage	The quality of thread is low	Replace the old thread with a high quality thread
The track of stitch is mess	The needle swings from side to side or the tip of the needle is too blunt	Replace the needle,change it to a longer or sharper needle

12.How to choose a proper bag closing machine?

When you need to buy a bag closing machine,it is better to consider some factors at first,to make it clear that what kind of bag closing machine is the most proper for you.The factors you need to consider include:

Usage

The first thing you need to think about is the usage of the bag closing machine,in other words,you will use this machine for which purpose.If you just use this machine to close a small amount of bags,you can consider the portable handheld bag closing machine.If you choose a bag closing machine for industrial purpose,which need to close a large amount of bags,and the sizes of them are big,you can choose a fully automatic bag closing machine.

Quality

When you need to buy a machine,of course that you hope this machine can have a long service time,no one wants to buy something that breaks easily.Therefore,quality of a machine is also a factor which you need to consider,look at the brand reputation and customer feedback of a machine,try your best to choose a high quality bag closing machine.

Size Of Machine

And,you have to keep in mind that choose the machine in proper size,where will you use this machine?If you need to use the bag closing machine in your house or other places which have small space,the semi automatic bag closing machine and portable handheld bag closing machine are more suitable for you.If you have a large workshop or factory,you can think about the fully automatic bag closing machine.

Size Of Bags

Another important factor to consider is the size of bags,if you just use a bag closing machine to close small sized bags such as paper bags,canvas bags and so on,you can use a semi automatic bag closing machine or portable handheld bag closing machine.
But if you need to close big bags such as jute bags and large plastic woven bags,you need a large machine.On the one hand,the operation will be a little hard if you use small machines to close large bags;on the other hand,usually the products which packed by the big bags are also very heavy, small machines can not support the weight.Therefore,you need a fully automatic bag closing machine for the purpose of closing big sized bags.

Conclusion

In the year of 2023, there is still a need for a bag closing machine. As the bag closing machine uses to close bags made up of different types of materials. A bag closing machine is a machine that closes the bags containing several types of products including flour, feed, sugar, coffee, fertilizers, minerals, etc. Daily monitoring of the bag closing machine is necessary for proper maintenance, as a result, the machine can work properly otherwise it may cause severe problems. Among all types, the portable bag closing machine is also available which could be easy to handle and used in different industries as well as for households.