What's The Principle of A Plastic Egg Tray Thermoforming Machine?

In today’s packaging industry, disposable plastic egg trays have become the standard choice for safely and securely packaging eggs. But how are these plastic egg trays produced? The production process primarily involves a thermoforming machine, typically a three-station type, which is particularly suitable for egg trays that do not require punching. For businesses with higher production demands, we recommend the Sinoplast-780 * 650mm Thermoforming Machine, as it offers a larger mold layout that allows for more cavities, leading to higher production efficiency and output.

The material typically used for making plastic egg trays is PET (Polyethylene Terephthalate) sheet. This material is chosen for its strength, durability, and ability to be molded into the necessary form.

Working Principle of the Thermoforming Machine

Our thermoforming machine operates through a series of key steps:

Feeding the PET Sheet: The process begins with the PET sheet being loaded onto the feeding rack, which is then transported by a conveyor belt to the heating box for thermal softening.

Heating: The PET sheet is heated to the desired temperature in the heating box, ensuring it becomes pliable and ready for molding.

Molding: The heated PET sheet is transferred to the mold for shaping. The Sinoplast 780 * 650mm multi-station Thermoforming Machine can accommodate up to 6 cavities per mold, significantly increasing production capacity

Cutting: Once the molding process is complete, the formed egg tray is moved to the cutting station where it is precisely cut to the required shape and size.

Stacking: Finally, the finished egg trays are stacked neatly at the stacking station, ready for packaging and shipment.

Required Auxiliary Equipment

For efficient production using our thermoforming machine, the following auxiliary equipment is essential:

• Chiller: To maintain the temperature control necessary for consistent production quality.
• Air Storage Tank: For proper air supply during the thermoforming process.
• Compressor: To provide the necessary air pressure for molding and cutting.

With all these components in place, the thermoforming machine can achieve a production speed of up to 40 molds per minute, ensuring a high throughput for businesses looking to meet large-scale demands.

If you are interested in purchasing the Sinoplast-780 * 650mm Thermoforming Machine or have any further questions about the production process, please do not hesitate to contact us.