Triple-Station Positive/Negative Pressure Thermoforming Machine

Positive and negative pressure three-station thermoforming blister machine is widely used in packaging, electronics, food, medicine and other industries due to its high efficiency, precision and automation. It not only improves production efficiency and saves space, but also ensures high quality and consistency of products.

Brif Intro

Positive and negative pressure three-station thermoforming blister machine is a high-efficiency equipment widely used in the fields of plastic packaging, plastic molding, etc. It is particularly suitable for the production of various plastic products, such as cosmetic packaging boxes, electronic product packaging, food trays, etc.

The characteristics of this equipment are that it can use both positive and negative pressure forces for thermoforming, and it has a three-station design, which can achieve more efficient and more precise production. This equipment is particularly suitable for mass production and complex shape molding needs.

Features of thermoforming machine

  • Positive and negative pressure molding technology
    The positive and negative pressure three-station thermoforming blister machine combines two different molding technologies, positive pressure and negative pressure. When the heated plastic sheet is fed into the mold, the positive pressure and negative pressure act on the front and back of the sheet respectively to ensure that it fits the mold accurately and completes the molding.

    Positive pressure: The heated plastic sheet is pushed to the mold by compressed air, which is suitable for large-area, flat shape molding.

    Negative pressure: The sheet is sucked into the groove of the mold by vacuuming, which is suitable for the molding of complex or detailed parts, ensuring the fineness and accuracy of the product.
  • Three-station design
    The equipment is equipped with three stations: heating, molding, and demolding/removal. Each station can be operated independently to ensure efficient and continuous production process, and different operation steps can be carried out simultaneously, further improving production efficiency
  • Intelligent control system
    Modern three-station thermoforming blister machines are usually equipped with PLC control systems and touch screen operation interfaces, which are easy to operate and fully functional. Users can easily adjust parameters such as temperature, pressure, and time according to their needs.
  • Precision molds
    The equipment is made of high-precision molds to ensure that the product has high dimensional accuracy and good surface finish, reducing the need for secondary processing.
  • High degree of automation
    The equipment has a high level of automation, including automatic heating, automatic molding, automatic demolding and other functions, which reduces the difficulty of manual operation and improves production efficiency.

Advantages of thermoforming machines

High production efficiency

Due to the three-station design, multiple process steps can be carried out simultaneously during the production process, reducing waiting and conversion time, thereby greatly improving production efficiency. The independent operation of each station ensures the continuity of the operation.

Precision and consistency

The equipment adopts positive and negative pressure molding technology, which can ensure the precise fit of plastic sheets in the mold, not only improving the molding accuracy of the product, but also ensuring the consistency of the product, especially suitable for the molding of complex shapes.

Save space and cost

Because the three-station design integrates multiple work processes, it can save space and improve the efficiency of the production line. To a certain extent, it reduces equipment investment and site occupation, and reduces production costs.

Wide range of applications

The equipment can adapt to the thermoforming of a variety of plastic materials, such as PS, PET, PVC, PP, etc., so it can be widely used in packaging, electronics, automobiles, medical and other industries.

Environmental protection and energy saving

The positive and negative pressure molding system effectively reduces the waste of heat, and can quickly and evenly heat the plastic sheet, save energy, and improve the overall efficiency of the equipment, which meets the requirements of modern industry for environmental protection and energy saving.

Application of thermoforming machine

Cosmetic packaging
The positive and negative pressure three-station thermoforming blister machine is widely used in the cosmetic packaging industry, and can accurately produce various complex shapes of packaging boxes, bottle trays, mask packaging, etc. These packages not only have high transparency and beautiful appearance, but also can effectively protect the safety of cosmetics during transportation and use.

Electronic product packaging
The equipment can produce packaging boxes suitable for electronic components, mobile phone accessories, precision instruments, etc., provide shock-resistant, dust-proof, and anti-static packaging solutions, and protect electronic products from damage by the external environment.

Food packaging
In the food industry, positive and negative pressure three-station thermoforming blister machines are widely used in the production of various food trays, fresh-keeping packaging boxes, fruit and vegetable boxes, etc., which can ensure the sealing and hygiene of the packaging, and at the same time have good air permeability to extend the shelf life of food.

Pharmaceutical packaging
The equipment can be used to produce pharmaceutical packaging, medical device packaging boxes, etc., with high precision and stability, which can ensure the safety and stability of drugs.

Automotive parts packaging
For parts packaging in the automotive industry, such as protective packaging for interior and exterior parts, the positive and negative pressure three-station thermoforming blister machine can be personalized according to the shape of different parts to ensure efficient protection of packaging materials.

Thermoforming machine process flow

Heating
First, the plastic sheet is heated to a softened state and is ready to enter the forming mold. The heating temperature and time need to be precisely controlled to ensure that the plasticity of the sheet reaches the best state.

Forming
The heated plastic sheet is fed into the forming area. At this stage, the positive pressure pushes the sheet into the mold surface, while the negative pressure sucks the sheet into the groove of the mold to ensure its perfect forming.

Cooling
The plastic sheet remains in the mold for a certain period of time to cool and shape it. The cooling process ensures that the molded product has good dimensional accuracy and rigidity.

Demolding
After cooling and shaping, the molded plastic product is automatically demolded and removed, ready for the next step of processing or packaging.

Post-processing
In some applications, the molded product may require post-processing processes such as trimming, deburring, and printing to ensure that the final product meets customer needs.

Positive and negative pressure three-station thermoforming blister machine is widely used in packaging, electronics, food, medicine and other industries due to its high efficiency, precision and automation. It not only improves production efficiency and saves space, but also ensures high quality and consistency of products. With the improvement of environmental protection and energy saving requirements, this equipment also conforms to the development trend of modern industry and becomes one of the important equipment in the thermoforming industry.

About SHENGAN

ShengAn (Shanghai) New Materials Co., Ltd – Your Trusted PET Sheet Solutions Provider

Established in 2018 in Shanghai, ShengAn specializes in high-quality PET sheets and thermoforming machinery, serving industries like electronics, food, cosmetics, and medical. With a 120,000 sqm facility and advanced production lines, we deliver over 10,000 metric tons annually, ensuring top-tier quality with ISO9001, GRS, and SGS certifications.

Key Offerings

  • PET Sheets: APET, RPET (recycled), ESD Antistatic, GAG sheets.
  • Machinery: Thermoforming, cup, and blister machines.
  • Custom Solutions: OEM services tailored to your needs.

Global Reach

  • Exporting to 70+ countries (Americas, Europe, Asia, Africa).
  • Annual sales exceeding $10 million, with 71%-80% export volume.

Commitment to Excellence

  • Customer-first approach: Comprehensive support and satisfaction guarantee.
  • Sustainable practices: Eco-friendly materials and GRS-certified production.