Automatic Thermoforming Vacuum Packaging Machine

We are Providing Vacuum Thermoforming Machine for Food Packaging.

A vacuum thermoforming machine, also known as a foam molding machine or foam expansion machine, is a type of industrial equipment used to produce foam products through a process known as thermoforming and foam expansion. Thermoforming involves heating a plastic sheet until it becomes pliable, then shaping it over a mold and cooling it to create a specific product shape. Foam expansion, on the other hand, involves injecting gas or air into a polymer melt to create a foam structure within the material.

Thermofoaming machines combine these processes to create foam products, often used in various industries such as packaging, automotive, construction, and more. The foam products can offer benefits such as light weighting, thermal insulation, and cushioning.

Here's a general overview of how a thermofoaming machine works:

1. Material Preparation: The machine starts by feeding plastic pellets (usually thermoplastic materials) into a hopper. These pellets are then melted down to form a polymer melt.

2. Molding: The melted polymer is extruded onto a mold or a set of molds. The molds are designed to give the desired shape to the final foam product.

3. Foam Expansion: During the molding process, a gas or air is introduced into the polymer melt. This can be achieved by various methods, such as chemical blowing agents or physical foaming techniques. As the gas expands, it creates a cellular foam structure within the material.

4. Cooling and Solidification: Once the foam has expanded and taken on the desired shape, the material is cooled rapidly to solidify the foam structure.