Tips for making tinplate lids

Tips for making tinplate lids
The selection of can lids making equipment should first consider product specifications, output scale, quality requirements, followed by is equipment costs, labor costs, operating costs, plant conditions and other factors.
Generally speaking, for the production of metal covers with few specifications and varieties, large output, and high quality requirements, equipment with high production efficiency and high degree of automation should be selected, such as various types of multi-function combined machines configured as automatic production lines. Due to the small specifications, it is not necessary to change molds and debugging equipment frequently, and it is easy to take advantage of the large-scale production of high-speed automatic production lines to avoid the damage caused by the handling of semi-finished products in the semi-automatic production process. At present, more advanced lid-making equipment can be provided in China, such as corrugated plate shearing machine, double-head automatic punching machine, glue injection drying combined machine, etc. For the production of special-shaped lids with quality requirements, it is best to choose a full lids curl machine to improve the sealing quality. The small size special-shaped cover can be directly selected the automatic curl & glue lining combined machine.The large-size special-shaped cover lining machine is relatively in low production speed. So, For large-size lids lining can use multi-gun semi-automatic lining machine or automatic lining machine. The dryer can be preferred to use a vertical dryer, and its drying quality is better than that of tunnel dryer. For products with many specifications and a lack of large quantity demand, and the production of metal covers with general quality requirements, you can consider choosing multiple semi-automatic stand-alone equipment.On the one hand, you can reduce the number of mold replacements and machine adjustments.On the other hand, you can also reduce the equipment. Investment costs. The rounded edge of the special-shaped cover can be considered to use half-curl or full-curl. As far as possible, the glue injection should not use the printing glue that is facing elimination. The tunnel dryer is suitable for any size and shape of metal cover, but it covers a large area and has high energy consumption. The drying quality is not as good as the vertical dryer, and it needs manual loading and unloading. The aluminum easy-open cover has fewer varieties and specifications, but the output is extremely large, so it requires a high-speed large-scale automatic production line, which is not yet available in China. The current demand for tinplate full opening is relatively small. The production capacity of domestic production lines has reached more than 80 pieces / min. The product quality also meets the requirements for use. Compared with similar foreign products, the price is low and should be preferred.

Tips for making tinplate lids

Tips for making tinplate lids

How to choose canning machine and sealing machine?

How to choose canning machine and sealing machine?

(1) Technical requirements for selecting canning equipment

① Whether the sealed tank is an empty tank (open top tank) or a solid tank.

② The shape of the sealed can body and lid.

③ The annual output of the tank (and converted into shift output or output per minute).

④ The size range of the sealed tank (the range of tank diameter and tank height).

⑤ If it is a solid tank, you also need to know the contents and vacuum requirements.

(2) Determination of the type and main parameters of the canning equipment According to the two requirements (1) and (2). in (1), the type of equipment used can be determined.

If it is an empty can or a solid can sealer, whether it is a round can or a shaped can, or whether the shape of the can body and the can lid are consistent. Especially when the shape of the can body and the lid are inconsistent (such as an embossed can), the type of can sealer should be determined according to the shape of the can lid, that is, a canned can or a round can sealer, and then according to the can body The shape of the tank requires the necessary modification of the transport system of the tank body (in general, the design of the tank sealing equipment considers that the shape of the tank body and the lid are consistent, and the difference is only in the size of the tank lid) according to (3) and (4). Two requirements, determine the adaptation range and production capacity of the selected equipment (also consider the matching with the production capacity of other equipment on the production line).

  • Selection of the structure and layout type of the can sealing machine

The actual can sealing machine is usually only vertical due to the need to fill the contents. Empty can sealing machine has horizontal. The distinction between vertical and vertical can be determined according to the working attitude of the can body and the can conveying equipment of other supporting equipment.The horizontal can sealing machine often needs to raise the can body to a higher position, and then rely on gravity. The guide cage dumps the can body to a horizontal state and conveys it to the entrance of the can sealing machine. The vertical can sealing machine does not need to raise the can body, and can use a conveyor belt (or chain) to directly convey the upright can body to the can sealing machine inlet. At present, most of the high-speed can sealing machines are vertical. The vertical can sealing machine has a compact structure and is convenient for maintenance and debugging. It should be given priority when selecting. In the vertical tank sealing machine, whether to choose the sealing wheel type or the track type, the characteristics of the two should be analyzed first. The track type combined machine has a compact structure and a small footprint, but the sealing track is difficult to process, requires high accuracy, and has a high manufacturing cost. At the same time, different tank types cannot be shared. The sealing wheel is simple to process and easy to ensure accuracy.Several tank types can often share one type of sealing wheel, the manufacturing cost is low, and the maintenance and adjustment of the machine are easy and simple.As can be seen from the respective characteristics of the two, the rail type can sealing machine is more suitable Workshop space is limited, and companies that change tanks infrequently use it. In general, more sealing wheel sealing machines are used. The combination of the advantages of the two can sealing machines also has the form of a sealing wheel combined machine, but there is no such product in China. Under the same conditions, the canning machine in the rotating form of the can body should be preferentially selected.The sealing roller of this canning machine can be arbitrarily adjusted with the swing arm, so the diameter of the sealing roller remains unchanged when the tank diameter changes. This allows different tank types to share the same sealing roller. The sealing roller of the eccentric feed can sealing machine can only be adjusted slightly. When the tank type is changed, the sealing roller must be replaced. In the tank body non-rotating can sealing machine, the four sealing roller types are preferred (two for each of the first and second sealing rollers). Because there are many sealing rollers, the crimping quality is high.

(4) Selection of canning machines with different degrees of automation Generally, automatic canning equipment should be selected for large-scale production, and the quality of automatic equipment is stable.

It is not affected by human factors, and the labor intensity of workers is small, and the production capacity is large, so it is more used. For small batches and limited funds, a semi-automatic can sealer can also be used. When the output is not reached, multiple units can be used. Manual can sealing machine is generally only suitable for laboratory use, used for testing can sealing, can also use this can sealing machine to make some sample cans as trial marketing products, so that less investment can be used for market analysis first.

(5) Selection of solid tank sealing equipment In addition to the requirements of vacuum degree, whether to fill with carbon dioxide gas, etc. when selecting solid tank sealing equipment, it is also necessary to consider whether the contents will overflow during the sealing process. Whether the materials are resistant to corrosion and meet food hygiene requirements. Priority should be given to the filling and sealing machine, the reliability of such equipment should be higher than the split equipment, and the cost is lower.

(6) Selection of spray can sealing equipment Spray cans are different from empty cans, and both ends of the can body need to be sealed. So when choosing canning equipment

There are two options. One is to use a horizontal necking, flanging and sealing combined machine.This equipment can simultaneously complete the necking of the tank body and the sealing of the top and bottom cover.It has a compact structure, but its production capacity is low. 60 cans / min, double heads are 120 cans / min; the other option is to use two can sealers to crimp and seal twice, and add a can pouring device and conveying equipment between the two devices.

How to choose canning machine and sealing machine?

How to choose canning machine and sealing machine?

What is the price of aluminum beverage can? What is the difference between aluminum beverage can and tin can?

When it comes to packaging, people have given different connotations. In the past, people thought that packaging was the use of appliances to contain items, or the operation of wrapping and bundling items, which merely played a role of accommodating items and facilitating access. This understanding is obviously one-sided. Now people have given a broader meaning to packaging. From a systemic point of view, it links the purpose, requirements, constituent elements, functions, and practical operations of packaging to form a complete concept.


The use of aluminum packaging materials has a short history, but because aluminum has its own unique characteristics, it has gradually increased as a food packaging material. The amount of aluminum used in aluminum foils, tubes and containers in China accounts for 2% of aluminum production. The main properties of aluminum are light weight, non-toxic, tasteless, beautiful, good processing performance, and shiny surface. In addition, because a dense alumina film can be formed on the surface of aluminum, it can effectively isolate the contact between aluminum and oxygen, and prevent further oxidation of the aluminum surface. However, it is corrosive in acid and alkali salt media, so almost all aluminum containers are used after spraying. Its strength is lower than steel, and its production cost is higher than steel, which is about five times that of steel. Therefore, aluminum is mainly used for sales packaging. For example, aluminum cans are mainly used for packaging of aerated drinks with a certain internal pressure. A small amount is used for transportation packaging.

Please visit:  for the price of aluminum cans.

What is the difference between aluminum beverage can and tin can?

Iron cans and aluminum cans are currently widely used, each with its own advantages.Z、 However, the current market for tin cans is more popular and advantageous.

The cans are made of aluminum alloy, and the inner wall is coated with some organic coating to isolate the aluminum alloy from the beverage. During the processing, it is inevitable that the protective coating is not applied or is too thin, so that the aluminum alloy on the inner wall of the can comes into contact with the beverage. The aluminum element gradually dissolves in it, especially when the can is filled with acidic or alkaline beverages.

Canned beverages should not be used often and often, especially children with strong growth and poor elderly excretory function, it is better to drink less. Refining aluminum cans can cause pollution. Aluminum cans are passivated and cannot be dissolved by ordinary weak acids.

Aluminum cans are generally coated with a protective layer on the inner wall. Acid substances generally do not erode aluminum cans during the shelf life, but if the shelf life has passed, it may not be necessary. If it is stored for too long, an acidic substance reacts with aluminum to cause aluminum ions to enter the beverage in large quantities. Aluminum will accumulate too much in the body, which will cause Alzheimer’s disease.

What is the price of aluminum beverage can? What is the difference between aluminum beverage can and tin can?

What is the price of aluminum beverage can? What is the difference between aluminum beverage can and tin can?