The metal can sealing machine, as the name implies, is a machine for sealing the mouth of a can.

Generally speaking, it can be summarized as: iron cans, paper cans, aluminum cans, pressure cans, etc. Due to the different lids, it is also divided into cans, tinplate cans, etc. According to the shape, it is divided into round cans, square cans, cans, etc.

From the above, there are many types of can-sealing machines due to the types of lids, which can generally be divided into: general-purpose can-sealing machines, square can-sealing machines, special-shaped can-sealing machines, etc. With the increasing requirements of the food, pharmaceutical, daily chemical industry and other industries for the shelf life, vacuum metal can sealing machine, vacuum nitrogen filling sealing machines, etc. have appeared.

According to the degree of automation, metal can sealing machine are also divided into semi-automatic metal can sealing machine and fully automatic metal can sealing machine
According to the characteristics of use, it can be divided into: knife rotary metal can sealing machine, can rotary metal can sealing machine

Semi-automatic metal can sealing machine
1) Semi-automatic metal can sealing machine
2)The semi-automatic metal can sealing machine generally consists of a manual metal can sealing machine, a pneumatic metal can sealing machine, an electric metal can sealing machine and so on. Generally suitable for small business production, single-piece production, small batch production factories.

a, hand canning machine
The hand-operated metal can sealing machine is the most widely used semi-automatic metal can sealing machine. Due to the advantages of stable mechanical quality and easy debugging, it is widely used by large and small factories, small workshops, stall shops and other units.
The sealing principle of this model is simple. It adopts two-knife folding and pressing sealing. The first knife is a folding knife, and the second knife is a bending fastening knife. It is generally used for sealing of non-vacuum and inflatable cans.

principle:
1. Put the jar with lid on the bottom support.
2. Step on the pedal to press the jar tightly on the upper mold.
3. Pull the handle to make the first knife and the second knife roll the lid quickly.
4. Put down the pedal and output the finished product.

b. The pneumatic metal can sealing machine is shown in Figure 1:
This model has a slightly higher degree of automation than the hand-held metal can sealing machine. Two air cylinders are used to replace the manual arm and pedal respectively.
Figure 1 Pneumatic metal can sealing machine
Figure 1 Pneumatic metal can sealing machine
principle:
1. Put the jar with lid on the bottom support.
2. Step on the foot switch, the bottom support cylinder will push the jar tightly on the press mold.
3. The swing arm cylinder swings to make the first knife and the second knife roll the lid quickly.
4. Finished product output.

c. The electric metal can sealing machine is shown in Figure 2:
The difference between the electric can sealing machine and the lever and pneumatic is that the first knife and the second knife are installed on both sides of the die.
Figure 2 Electric metal can sealing machine
Figure 2 Electric metal can sealing machine
principle:
1. Put the jar with lid on the bottom support.
2. Step on the foot switch or the can induction switch (different from manufacturers, and the method is different), the bottom support relies on the motor cam to drive the bottom support to press the can against the mold.
3. Due to the action of the side swing arm cam, the first knife first presses the cover curling. When the cam rotates for half a turn, the second knife swing arm begins to press tightly.
4. Finished product output.
The above-mentioned models are semi-automatic can sealing models that are popular in China, and the average can sealing speed of the models is between 15 and 30 cans per minute. Because of the low cost, low technical content, and stable quality, many individuals and units use this type of model. The disadvantage is that it is not suitable for mass automated production lines.

Automatic metal can sealing machine
Fully automatic metal can sealing machine are generally used in automated production lines and mass production lines. Since the model is transformed from a drilling machine, the domestic can seamers are all large and heavy can seamers. Because of its high cost, high output, and high technology, it is deeply favored by large enterprises.

a, The fully automatic metal can sealing machine is shown in Figure 3:
Figure 3 Fully automatic metal can sealing machine
Figure 3 Fully automatic metal can sealing machine
This model is mainly used for automatic capping of cans. The production speed is generally 50~200 cans/min.
principle:
1. When the can is filled from the upper channel and flows into the metal can sealing machine.
2. The metal can sealing machine that brings the cans into after the six-prong rotation. The jar is capped by an automatic cap dropper.
3. The six forks continue to rotate to the next station, and the first curling knife begins to pre-curling.
4. Six forks continue to rotate to the next station. The second crimping presses the edge.
5. Finished product output.

b. Fully automatic vacuum nitrogen filling and metal can sealing machine
Fully automatic vacuum nitrogen filling and metal can sealing machine
Fully automatic vacuum nitrogen filling and metal can sealing machine
This model is mainly used for vacuuming, nitrogen filling and sealing of tanks. The production speed of this model is generally
9-20 cans/minute.
principle:
1. The cans filled by the filling machine flow into the turntable of the metal can sealing machine.
2. The capping machine starts to cover automatically.
3. Turn the turntable to the first knife pre-sealing.
4. Enter the vacuum chamber and perform vacuuming.
5. Controlled by the vacuum suction switching valve, nitrogen enters the vacuum chamber, and the nitrogen is sucked into the tank.
6. The tank with nitrogen enters into the second knife and is tightly sealed.
7. Finished product output.

The above introduction is just a brief introduction, because different manufacturers have different working principles, you can find the relevant manufacturers for specific understanding.

Alien and Square

Special-shaped can seamers and square can seamers will not be discussed in depth here, because this model is mostly customized according to the shape of the product. Generally, spring pressure is used for pre-sealing and tight sealing. The rest is the same as the standard can seamer.