Tin Can Manufacturing Process

Tin Can Manufacturing Process

A tin can is a small container meant for storage and distribution of goods. Oftenly, most of the cans require removable covers while others require some cutting. Companies use cans for various purposes including storing food for sale, holding beverages, chemicals, oil among other uses. Tin can manufacture process involves multiple processes including seaming and fabrication.

The seaming process entails joining the can body and the ends through micro-seaming. There are various steps in this process which includes flanging the body with one of the cans end getting curled, joining the curled can and the can body. A can use maker machine for seaming operation consist of the closing station, base slate, seaming chuck,  and operation rolls. A base slate supports the body of the can while the seaming chuck holds the cover on the can body, but sometimes it can act as seaming roll pressure back up.

The modern micro-seaming process incorporates all the previous seaming except when re-dimensioning and re-designing the operation rolls. When re-designing the can, the level of hardness and thickness of the metal material is adjusted to obtain the desired length and size. There is also conventional seaming where the curves are designed and re-dimension of second operation rolls.

After completion of the first seam operation, operation roll is retracted, and it can no longer contact the can end. There is a micro-seam improvement that enables a user to obtain a tin can with substantial material savings.

Can Fabrications

There are several stages in can fabrication

  •    Formation of the tube and soldering the seams
  •    Joining the body with the bottom end
  •    Attaching labels and printing
  •    Filling the content
  •    Sterilization or retorting
  •    Joining the body with the top end

Commonly, double seaming is usually preferred when joining the ends with the body to prevent leakage. However, this process sometimes might deform the rims.

 Size and Material

Cans can be of different sizes and shapes, but the commons ones are the tuna tin and the soup tin. The walls of these cans are usually stiffened with bulges to help in resisting dents that might cause splitting of the seams. In most local dialects, all-metal cans are referred to as tin can although some are made from aluminium. Some of the cans are made using the tin-free steel, and in some parts like the UK, they produce foods that have a plastic coating to prevent acids corroding the can.

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Can Making Machine

Can Making Machine

Making a tin can involves several steps that distinctively correlate with each other. These manufacturing processes include top curling, can body making, shearing/slitting, beading, seaming, flanging and many more. The primary material used by can making machine is mainly the tin plate. A slitting or shearing machine cuts the plate precisely until the required blanks are obtained with the desired length and width. These lengths should be able to fabricate into a single body during the final process.

The slitting process can be automated or done manually. Before you embark on this process, you should ensure the slitting machine works effectively depending on the necessity. There are three types of slitting machines namely:

  •    Manual slitting machine
  •    Semi-automatic slitting machine
  •    Fully-automatic slitting machine

Making Tin Body

There is a machine that is responsible for the body. This machine is programmed fully to incorporate various manufacturing processes at the same instance. This can machine usually does many tasks and can produce many can bodies in a short time interval. The steps incorporated during tin body production include pre-curling, making groove, notching, locking, and forming. All these processes have been integrated into one chain and operate in a synchronized manner.

Body making process should be done automatically to minimize the production cost. When you incorporate such mechanisms in your production line, you will be guaranteed to spent low expense regarding power consumption, space, maintenance cost among other issues. A tin body machine can also be adjusted to permit various sizes and shapes.

Top curling Machine

This is the can machine that is responsible for curling the top of the can. This will ensure the top part of the can have specific depression, and the can have the desired shape usually an excellent rim.

Beading machine

The beading machine is responsible for convex exterior and hollow interior area of a can. The can goes through a series of bulges and small depressions until the desired designed are obtained. The reason for beading in tin making process is to get a furnished can come with higher quality and stability.

Necking Machine

This machine is mainly meant to reduce or lessen the diameter or width of the can at the top. This necking process will ensure a narrow head is obtained that consequently makes the can look cool.

Seaming Machine

The bottom of the can is joined with the can’s body through the seaming process. This seaming machine can either do single or double seams depending on your preferences. However, the latter is usually preferred as it impeccably lasts longer and holds tightly.

Flanging Machine

The flanging machine is designed to make flanges on the top and bottom ends of the can. The edges are formed and flanges leveled at the two ends.

Lid Making Machine

Making a lid comprises several easy steps. There is trimming, edge curling, and punching from the blanks. Machines that have incorporated cutting-edge technology usually do the lid making process. At the inception, the blanks are punched precisely until the ideal lid is obtained with the desired shape and design.

Bottom Making Machine

Finally, there is a bottom making machine that punches the blank slits when making the bottom sections. The punched part is then seamed, and the can is the channeled through the sealing process.

Can Making Facts:  Selecting the Right Tin Can Making Machine


Can Making Facts:  Selecting the Right Tin Can Making Machine

Tin can making is one of the few things most people little know about despite cans being the most preferred packaging solution.  But for investors planning to set up a can making plant, there are a few things you must understand about tin can making. Making tin can may not be as easy as it may look. The fact that they look fancy on shelves is an indication that a lot of work has been put in them. You need to invest in a good tin can making machine.

Tin can making machine is not a standalone machine doing everything. It is a set of machines designated for specific production roles till the final product (tin can) comes out at the end. That is why a can maker is often referred to as a tin can making machine production line. However, there are various types of tin can production lines in the market depending upon some factors. Therefore, when selecting a can making machinery, you need to be live to various factors to get what suits the best. Here are some of the critical factors to consider whole Selecting tin can maker.

Size and Shape of Tin Can

The size of the cans to be produced is critical factor take into account. Tin can manufacturing equipment are designed with certain limits (regarding to can measurement) with which that they can produce.  If you are producing food cans, the can production line might be different from one producing mint line. Second, the shape of the tin can is another factor that differentiates various can equipment. One can go for the rectangular can line, round can line, irregular can line and so on.

Type of Seam

There are usually two main options to pick- welded or locked seam. The welded seam can be a little bit expensive thus increase the overall cost of the product. That is why lock seam can making machines are the most recommended. They are also popular in the market due to their ease of use and cost-cutting measures. They not only reduce the cost of production but are also easy to use.

Production volume

How many tins can a machine produce in a unit hour? Well, that is a question you need to get answers to for you make a smart decision. At the end of the day, it is about how much money you can make with the equipment. Production volume is critical information that could help you determine the value for money.


Last but not the least is the size of the machine. Depending on the space reserved for the plant, you can have a design that suits your needs. Fortunately, most of the tin can production lines can be rearranged to fit in small spaces. But it is advisable to ensure that you have enough space to install the plant and for the workers.

So if you have plans to start a tin can manufacturing plant, it is very easy. There are credible and reputable manufacturers designing and supplying turnkey tin can making equipment. However, you must ensure that the right machine is supplied by taking into account the mentioned factors. In addition, you must consider the number of employees need to operate the machine vis a vis the production level at the peak.