
There are various ways to seal plastic cups at home. One way is to use a cup sealer film, which is a durable and high-quality material that provides a tight seal. It is commonly used in food and beverage industries to seal various cups, such as milk tea, coffee, and dessert cups. Another way to seal plastic cups is by using an electric cup sealing machine, which is suitable for sealing milk tea, bubble tea, fruit juice, and other beverages. These machines are made of stainless steel, have precise sealing capabilities, and can seal 300-500 cups per hour.
Characteristics and Values Table for Sealing Plastic Cups at Home
| Characteristics | Values |
|---|---|
| Custom Cup Sealer Film Size | 90/95mm |
| Types of Film | Transparent, Frosted, Paper |
| Number of Cups Sealed with Four Rolls of Paper Film | 6400 |
| Number of Cups Sealed with Four Rolls of Frosted and Clear Film | 9600 |
| Cup Sealing Machine Power | 300W |
| Temperature Control Range | 0ºC-250ºC/0ºF- 482ºF |
| Input Voltage | AC220V |
| Net Weight | 9 kgs |
| Gross Weight | 14 kgs |
| Suitable Cup Diameter | 9cm/9.5cm |
| Suitable Cup Height | <19cm |
| Number of Cups Sealed per Hour | 300-500 |
| Cup Sealer Film Roll Diameter | 170 mm |
| Cup Sealer Film Roll Width | 130 mm |
| Cup Sealer Film Suitable Cup Diameter | 90-105 mm |
| Cup Sealer Film Temperature Range | 160-180ºC |
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What You'll Learn

Using a cup sealer machine
First, you need to purchase a suitable cup sealer machine and the appropriate sealing film. There are various options available, such as the Bubble Tea Sealing Machine, which can be easily purchased online. This machine is commonly used for sealing beverage cups, ensuring they are easy to carry and spill-proof.
Once you have acquired the machine, setting it up is straightforward. Refer to the instruction manual provided with your machine for specific details, but generally, you will need to install the sealing film correctly. Ensure that the film is installed in the correct direction, as only one side will stick to the cups.
After installing the film, you can begin sealing your cups. Place the cup under the sealer, close the lid of the machine, and press the start button. The machine will apply heat and pressure to seal the film around the cup, creating a tight and secure seal.
Depending on the type of film you use, you can expect to seal a large number of cups. For example, four rolls of paper film can seal approximately 6,400 cups, while four rolls of frosted or clear film can seal up to 9,600 cups.
Always remember to follow safety precautions when using the machine. Refer to the instruction manual for specific safety guidelines and troubleshooting common errors that may occur during operation.
By following these steps, you can efficiently seal plastic cups at home using a cup sealer machine, making it convenient for storing or serving beverages.
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Sealing with film
Sealing plastic cups with film at home can be done in a few ways, depending on the type of cup and the desired level of adhesion. Here is a guide to help you seal plastic cups with film:
Firstly, it is important to choose the right type of sealing film for your cups. Sealing films come in various sizes, styles, and materials, such as PP (polypropylene) plastic, PE (polyethylene) plastic, PET-ES plastic, paper, and aluminium foil. The compatibility of the film with the cup material is crucial. For example, PP sealing film typically adheres strongly to PP cups and is not meant to be peeled off, whereas PE sealing film can be used with PE-coated paper cups and some PP cups, offering a milder adhesion that allows for peeling.
PET-ES sealing film is a versatile option, suitable for PP, PET, paper, Styrofoam, and most PLA containers. Paper sealing films are also gaining popularity as an eco-friendly alternative to plastic. They are coated with PE plastic to ensure waterproof properties and are compatible with specific paper and PP cups.
When sealing plastic cups with film, it is essential to consider the diameter of the cup. Sealing films are typically designed for cups within a specified diameter range, such as 90mm to 95mm or 90mm to 105mm. Ensure that the sealing film you choose is suitable for the size of your cups.
Some sealing films offer customisation options, allowing you to print your logo or brand colours on the film. This can be a great way to increase brand recognition, especially if you are sealing cups for commercial purposes.
Once you have selected the appropriate sealing film, follow the instructions provided by the manufacturer for effective application. This may involve using a cup sealing machine that applies heat to activate the adhesion of the film to the cup. Ensure that you work within the recommended temperature range for the best results.
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$62.53 $65.83

Choosing the right cup
When selecting cups for sealing, it is important to consider the cup's material. Plastic cups made of PP (polypropylene) plastic are commonly used for sealing and are available in various sizes, including 90mm, 95mm, and 98mm diameters. These cups often have a U-rim design, which is compatible with sealing films.
The cup's diameter and height should also be compatible with your chosen sealing machine. Some sealing machines are designed for cups within specific dimensions, so it is crucial to check the machine's specifications before purchasing cups.
In addition to size and material, the cup's intended use is another important factor. If you plan to seal hot beverages, ensure that the cups can withstand higher temperatures. Similarly, if you intend to seal carbonated drinks, choose cups that can maintain the carbonation and prevent leakage.
Lastly, consider the design and appearance of the cups. Some sealing films have cute face expressions or patterns that can enhance the visual appeal of the sealed cup. You can also choose between transparent, frosted, or coloured cups to best suit your preferences or branding.
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Temperature settings
The temperature settings for sealing plastic cups depend on the type of cup and the sealing machine being used. PP cups, for instance, require higher temperatures, typically between 160°C and 180°C, while PET cups are made of a harder plastic and need lower temperatures, around 140°C to 160°C. Paper cups, being the most heat-sensitive, require the lowest temperature range of 130°C to 150°C.
It is important to note that the thickness of the cup also matters. Thicker cups require higher temperatures to achieve a strong seal, whereas thinner cups seal more easily at lower temperatures. Therefore, it is crucial to find the right balance to prevent overheating or weak seals.
When using a sealing machine, it is recommended to consult the supplier for accurate machine adjustments. This ensures the machine is well-calibrated and helps prevent issues such as wrinkled seals, weak adhesion, and overheating damage.
Additionally, higher temperatures speed up the sealing process, but if set too high, they can cause film breakage. Lower temperatures require more time to achieve a secure seal. For example, PP cups, which are commonly used for bubble tea, require a delicate balance to ensure a tight seal without melting the plastic or causing warping.
Overall, finding the right temperature setting for sealing plastic cups at home depends on the specific cup type and the sealing machine being used. It is important to follow the recommended temperature ranges and make adjustments gradually to achieve the desired results.
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Sealing with or without a straw
Sealing plastic cups at home can be done with or without a straw. If you want to include a straw, you will need to purchase a cup sealer film that is designed to accommodate this. The film should be made of high-quality material that will not crack when the straw is inserted and will seal tightly to prevent leaks. There are several options available, including transparent, frosted, and paper film, which can be used for plastic cups with a diameter of 90-95mm.
To seal the cup with a straw, first, insert the straw into the cup. Then, cut the film to size and place it over the top of the cup, ensuring that the cursor recognition points on the film are aligned with the cup. Finally, use a heat source such as a hairdryer or hot iron to shrink the film around the cup and create a tight seal.
If you do not need to include a straw, you can still use a cup sealer film to seal your plastic cups. The same types of film can be used, and the process is similar. Simply cut the film to size and place it over the top of the cup, ensuring that the cursor recognition points are aligned. Then, apply heat to the film to shrink it around the cup and create a seal.
In addition to using a cup sealer film, you can also purchase a manual or electric cup sealing machine to seal plastic cups at home. These machines are designed to seal cups quickly and efficiently and can handle a large volume of cups per hour. When using a sealing machine, it is important to adjust the temperature setting according to the type of plastic cup you are using to ensure a proper seal.
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Frequently asked questions
There are two main ways to seal plastic cups at home: using a cup sealer machine or a cup sealer film.
Cup sealer machines are electric devices that seal plastic cups using heat and pressure. They are typically made from stainless steel and can seal 300-500 cups per hour.
Cup sealer film is a film that can be used to seal plastic cups. It comes in rolls and can be used to seal 6400 cups. The film is made of quality plastic materials, has thermal stability, and low shrinkage, making it suitable for sealing machines.
Cup sealer machines and films can be purchased online from retailers such as Amazon.








































