Case Sealer: The Complete Buying Guide In 2023

Case Sealer

In the world where large number of products travel from one place to another, it is necessary to take measures for their protection. Case sealer provides proper sealing of boxes or cartoons that has to be delivered through transportation. It ensures proper packaging that the products inside the box do not get damaged.

Numbers of manufacturers are producing case sealer with greater advancements. But how will a new industry select its appropriate sealer according to its production setup. We Allpack China are here to remove your queries related to buying a case sealer. This article contains all the necessary information that is to be considered before buying a machine. So, go through it and take complete assistance.  

In modern era, the use of a vacuum packaging machine is approximately indispensable for commercial and domestic utilization. Similarly, if you are purchasing this equipment for your business or household you have to contemplate on finding perfect one. This blog can add more into your information.

1.What Is A Case Sealer?

Case Sealer

A case sealer is mostly used in packaging industry or industries where products are packed with sensitive care. A case sealer is basically a packaging equipment which is used to pack a carton or box in a highly efficient manner. A carton is placed on the conveyor and the tape rollers roll on both sides of the carton.  

In this manner, the carton gets sealed from all the sides. A carton sealer ensures safe travelling of products even if it is to be delivered to a longer distance. This type of sealing reduces human efforts to a large level and also gives quality packaging.

2.What Are The Features Of A Case Sealer?

Features of a Case Sealer

Features of a Case Sealer

1.Packaging Range

Case sealers are highly versatile that they provide a wide range of packaging standards. It can be customized to any range according to the length, width and height of the carton or box. No matter what material the box is made up of, a case sealer can seal it with high perfection and precision.

2.Power Supply

One of the most important features of a case sealer is that it does not require any special type of input power supply. It can be plugged in any of the range of voltage available in the global world.

3.Customized Conveyor Length

Another feature of a case sealer is that it is not utilized for only a single length box or carton. The input conveyor and whole system can be adjusted according to the packaging box. The conveyor speed and movement is also controlled according to that particular situation.


Most of the case sealers are made up of stainless steel due to which they are highly durable and last for a longer period. The environmental condition does not harm the sealer that much due to its composite body structure.


Last but one of the unique features of a case sealer is their speedy packaging. The rate of products sealed in a prescribed time is much higher than done by traditional sealing methods. This increases the productivity of an industry and also allows producing number of carton in an hour without any human effort.

3.What Are The Benefits We Can Get From a Case Sealer?

Advantages of a Case Sealer

Advantages of a Case Sealer

1.Increasing Productivity

Case sealers are used to increase the productivity to a large level which was near to impossible with traditional methods. Manual sealing takes a lot of time whereas automatically and within a minute a case or carton gets sealed with perfection. It directly increases the production rate on daily basis.

2.Avoiding Material Wastage

Using a case sealer ensures that all sides of a box are proper and evenly sealed so that no material wastage takes place. A single strip is continuously applied on the whole case which also avoids multiple times application of tape. In this way the applied tape is also saved.

3.Proper Sealing Position

Previously, an excess quantity of taping on sealed cartons was received. But now using a case sealer, tape is applied on proper positions within a system and no excess tape is used. In this manner sealing with efficient length and position is done.

4.Product Security

A single layered sealing on cartons with consistency allows the product to be highly secured. It ensure better security of products no matter how far it has to travel. A case sealer decreases pilferage rate and increase security of products during transportation.

5.Product Presentation

The product which is packed in a case sealer is highly presentable in nature. It is packed in a level that the customer gets directly attracted to it and wishes to have a case sealer

6.Less Damage to Products

Using ordinary means of sealing like scissors, staplers, straps or glue has high probability of product damage. These cannot completely secure the product and in a result both worker and products loss can occur. Case sealer on the other hand provides unbreakable sealing to case so that the product and its surrounding both get secured. Also the repairing cost reduces to a distinct level while using a case sealer.

7.Operators Safety

As the product gets secured, it reduces the chance of any accident with its motion. The employee or operator that carries the carton is completely safe and there is no chance of any injury to the operator. A case sealer also reduces human efforts, fatigue, injuries and also machine breakdowns.

4.In Which Industries These Case Sealers Are Mostly Used?

Applications of a Case Sealer

  • Packaging IndustryPackaging Industry

Case sealer is most popularly used in packaging industry where large numbers are to be packed in limited time. Traditionally, this method was done by the operator himself but it was much time consuming and also the packaging was not done in a proper manner. Case sealer has now provided packaging industry a great benefit in clean packaging of products.


Other than packaging industry, all industries that pack their products in cartons or boxes are now focused on using these case sealers for their packaging process. Case sealer increase productivity in an exponential manner and helps industries to become more economically stronger.

5.What Is the Working Principle of a Case Sealer?

Working Principle of a Case Sealer

Working Principle of a Case Sealer

The working principle of a case sealer is not as complex as other sealing options. It only follows the few procedures.

  • Initially all the products are kept inside the carton or box and then sent to the conveyor of a case sealer.
  • All external and internal parameters including power, conveyor speed, tape rolling speed and other are maintained for proper sealing.
  • The carton is then placed on the conveyor manually and then it automatically travels to the path towards the machine.
  • As the carton enters the sealing area, both up and down tape sealing rollers roll on the surface of it and seal the carton from upside down.
  • The motor then drives the carton out of the system and in this way the sealed carton is received at the end of conveyor system.
  • In this simple procedure, highly efficient sealing is performed on carton with precision and accuracy.  
6.What Are The Types Of Case Sealer Available?

Types of a Case Sealer

Carton sealers are primarily available in two types. These types are then further divided according to the construction of machine and its application. The two types of case sealers are

  • Semi-Automatic Case Sealer

Semi-Automatic Case Sealer

In a semi-automatic case sealer, both human and machine interface are present and different stages. Initially the carton is placed by the operator and flaps all the interfaces either minor or major. Then the carton enters the system and tape sealer is applied. Also after the sealing application the carton is manually received at the other end.

  • Fully Automatic Case Sealer

Fully Automatic Case Sealer

While in a fully automatic case sealer, all the procedures are performed by the machine itself. Sometimes the operator only places the carton on the entrance if the machine is isolated from the rest procedures. Otherwise, the whole product placement, flapping of carton edges, sealing, and quality check all are done by the machine itself. Also a proper conveyor system allows the entrance and exit of cartons.

7.What Are The Main Components Of A Case Sealer?

Components of a Case Sealer

The main components present in a case sealer are

Components of a Case Sealer

  • Tape Dispensers

Tape Dispensers

This is the heart of a case sealer because it holds the main sealing tape in it and dispenses over the products. The tape dispenser rolls over the carton when it is feeded to the system. The important feature of a tape dispenser is that it only releases a desired amount of tape according to the size of carton.

Tape dispensers are available in different width and sizes ranging from 25mm to 100mm for an overlap tape of up to 70 mm

When the tape overlap is 50mm,the tape width is 30mm,tape range is 25-30mm.When the tape overlap is 50 or 70mm,the tape width is 50mm,tape range is 38-50mm.When the tape overlap is 70mm,the tape width is 100mm,tape range is 65-100mm.

  • Pillars


Pillars are the one which forms the assembly of a case sealer. They are of different size and width according to their placements. They are also incorporated with air cylinders and gas springs.   

  • Tape Alarm

Tape Alarm

Tape alarm is an indication unit that monitors and supervises the process of sealing. This system monitors the knife and roller movement with its photoelectric eyes. Whenever some mishap or warning occurs, the tape alarm generates an alarm both in audio and video form. In the mean time it also holds the rest of process. It indicates following warnings.

  • If the roller tape gets empty.
  • If the roller tape is about to get empty
  • If there is no tape on the roller
  • If the tape is not properly cut and the roller still pulls out tape.
  • Motors

For ensuring the movement of cartons or boxes and also properly sealing, some motor driven units are their which are moved using motors. Also the conveyor system is moved using these motors.

  • Conveyor System

Conveyor System

Conveyor systems are there in a case sealer machine for proper in and out of a carton or box. These conveyors make easily delivery of boxes to the system and also inline the system.

8.What Are The Common Faults and There Remedies That Are Faced In A Case Sealer?

Common Errors and their Remedies in a Case Sealer

Some of the possible errors that are faced in a case sealer are

  • Insufficient Sealing

Insufficient Sealing

The most popular error or fault that is faced in a case is of insufficient application of sealing. Due to this the packaging is not proper done and hard kneading or peeling is present which can further crack the sealing in transportation. This factor mainly arises because of the improper setting of parameters like temperature, pressure, conveyor speed and etc.

This error can be removed if proper sealing pressure and conveyor is maintained and synchronized with each other.

  • Edge Breaks

Edge Breaks

Another problem faced in case sealer is of shrinks or edge breaks. This problem is created because of improper sealing temperature.

The error can be rectified if the sealing temperature is maintained according to the product and tape material that has to be packed.

  • Wrinkles Formation

Wrinkles Formation

Wrinkles are formed due to the failure of sealing that is caused by static electricity. As the result case sealers applies tape with wrinkles and also the inward attraction of contents takes place.

Properly static electricity supply can minimize this problem.

  • Product Contamination

Product Contamination

There are possible scratch marks or ways that can contaminate products due to improper cleaning of parts that are present in a case sealer.

Proper parts clean schedule if done will reduce the chances of product contamination.

9.Which Factors Are Necessary To Be Noticed Before Buying A Case Sealer?

Factors that are Necessary to be noticed Before Buying a Case Sealer

There are eight important factors that should be kept under consideration before going for purchasing a case sealer



The most important factor before selecting a case sealer is to check its versatility and compatibility. Because it is not necessary that only a single sized carton is to be sealed every time. There can be different sizes according to the situation. So, the manufacturer should select the machine after complete study of whether it is compatible on uniform size or also on random sizes.

Random case sealer can give lot of productivity and economical advantage to the manufacturer. It is always a good decision to select a random case sealer rather than a uniform case sealer.

2.Weight of Case

weight of case

The weight handling capability of a case sealer should also be one of the important concerns for the buyer. As the products that are being packed vary in weight, it can directly affect the speed of conveyor. As a result of it poor quality taping will be performed. So, select the sealer with maximum weight bearing capacity according to production setup.



Productivity is always a prior factor for any industry. A more productive machine can drastically increase the productivity of any industry. So, the case sealer should be selected keeping the present and future production capacity in mind

4.Labor Involvement

Labor Involvement

Machine with high automation can reduce the labor cost and also increase the production cost. So, machine should be selected keeping in mind that is the labor necessary or not or fully automated machines are required

5.Size of Case

Size of Case

Case sealer in which the industry is interested to invest should be compatible with small to large cartons. Size is an important factor which ensures that the machine will seal number of cartons regardless of their sizes.

6.Working Environment

Working Environment

Another important factor for considering in a case sealer is that in which environmental conditions the industry will use it. Environmental conditions can directly affect the structure of a case sealer. As in high humid conditions, case sealer made up of stainless steel are more preferred.

Likewise in normal working conditions, simple enameled steel body structured case sealer can be used. While checking the environmental conditions, machine size and its placement should also be considered according to the area available within territory.

7.Authenticity of Manufacturer

Authenticity of Manufacturer

An industry should have a complete look on different manufacturers rather than sticking on one. In the current conditions, many manufacturers are busy in making case sealers so it’s better to go through all those authentic manufacturers which are more popular among large scale industries. Customer reviews can also help in selecting best suitable machines.

8.Local Assistance

Local Assistance

Having local assistance is always a plus for any buyer. It helps in complete machine installation and also ensures quick availability whenever required. Local suppliers also support in technical issues which can directly reduce long machine stoppages.


Case sealer are more popular among industries because of their quick, efficient and reliable packaging of cartons or boxes. But it is always necessary to be aware of all the factors that should be considered before purchasing a case sealer. We Allpack China are here to provide you variety of case sealer options and also to assist you in any matter related to case sealer. You can always contact our customer support team or visit our website for more details.


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