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Machine Q&A

How to Use an Automatic Sealing and Shrinking Machine?

2026-01-21

1. The Role of Automatic Sealing and Shrinking Machines in Cosmetic Packaging

Automatic sealing and shrinking machines integrate sealing, cutting, and heat shrinking into one efficient packaging process and are widely used in the cosmetics industry. By tightly wrapping products with shrink film, the machine not only enhances the overall appearance and premium feel of cosmetic products, but also provides protection against dust, moisture, and tampering, meeting the industry’s high standards for both aesthetics and safety.


2. Preparation Before Packaging

Before using an automatic sealing and shrinking machine, proper preparation is essential. First, select the appropriate shrink film according to the size, shape, and weight of the cosmetic products. Next, check that the power supply, air source, and machine components—such as the sealing blade, conveyor belt, and heating system—are functioning properly. Additionally, ensure that the cosmetic products are clean, dry, and neatly arranged to achieve optimal packaging results.


3. Correct Placement of Cosmetic Products

Place cosmetic products correctly on the conveyor belt or push plate according to packaging requirements. Products should be centered and aligned neatly. For bottles, boxes, or containers, ensure they are stable and upright to prevent tipping or shifting during sealing and shrinking. Proper placement helps improve sealing accuracy and reduces film waste.


4. Key Points of the Sealing and Cutting Process

When the cosmetic products enter the sealing area, the machine automatically completes the sealing and cutting process. Operators should adjust the sealing temperature and time based on the thickness and material of the shrink film to ensure strong seals and clean cutting edges. High-quality sealing is the foundation for a smooth and visually appealing shrink-wrapping result.


5. Control of the Heat Shrinking Process

After sealing and cutting, the products enter the heat shrink tunnel. Through hot air or infrared heating, the shrink film evenly contracts and tightly conforms to the shape of the cosmetic products. By adjusting the shrink temperature and conveyor speed according to the product and film characteristics, issues such as overheating, wrinkles, or deformation can be effectively avoided.


6. Inspection and Finishing After Packaging

Once the shrink wrapping process is complete, the packaged cosmetic products should be inspected for appearance quality. Key points include checking whether the seals are firm and whether the film surface is smooth and transparent. Any defective packages should be corrected by adjusting machine parameters and reprocessing. Qualified products can then proceed to cartoning or the next production stage, ensuring a smooth workflow.


7. Equipment Maintenance and Safety Precautions

To ensure long-term stable operation of the automatic sealing and shrinking machine, regular maintenance and cleaning of the sealing blade, heating elements, and conveyor system are recommended. Operators should strictly follow safety procedures and avoid direct contact with high-temperature components to guarantee efficient, safe, and reliable cosmetic packaging operations.

By using an automatic sealing and shrinking machine correctly, cosmetic manufacturers can significantly improve packaging efficiency and enhance product presentation, adding value to their brand image.


About WIN-WIN PACK
WIN-WIN PACK focuses on the independent research and development of packaging machines, including advanced automatic sealing and shrinking machines. Driven by innovation and quality, we are committed to providing efficient, reliable, and high-performance packaging equipment to customers worldwide.  Be your trusted packaging partner in China.