Working principle of food puffing machinery

The so-called food puffing machinery is a type of food puffing machine equipment used for processing puffed food. The food puffing machine has characteristics such as a wide range of raw materials, flexible configuration, simple operation, and a variety of product types. It is suitable for processing in many food production fields, including snack foods, ready-to-eat cereal foods, dairy products, and convenience foods. So, what is the working principle of the food puffing machine?

Using the equidistant non-standard screw system of a food extruder for extrusion and propulsion, the material is rapidly filled while gases within it are expelled. Through shear force, the material is refluxed, increasing the pressure inside the barrel. As the rotation and friction between the barrel occur, the material is thoroughly mixed, extruded, heated, bonded, and glued, leading to structural changes. Through the frictional effect of the material inside the barrel, mechanical energy is converted into thermal energy. When the material is extruded to the outlet, the pressure changes from high to normal, disrupting the original structure and forming internal microporous structures, causing rapid evaporation of moisture in the tissue structure. It is then expanded and shaped through cutting and cooling by the cutting device.

Datong Food Extrusion Machinery is a multifunctional extruder. By simply changing the mold and adjusting the formula, the product shape can be altered to produce items with different appearances and patterns. It offers a wide variety of types and colors, enabling the formation of a product series, which enhances flexibility in production and sales. It can be used as a production line for snacks, corn crisps, filled foods, puffed foods, millet bars, oat crisps, and other small food items.