Twin screw extruder: make extruded food delicious and healthy

Puffed food is characterized by diversification of products, high preservation rate of nutrients, easy storage, wide applicability of raw materials, high utilization rate and no pollution.


Puffed snacks

The twin-screw extruder has the functions of heating, mixing, crushing, shearing, pressing, forming, expanding, drying and so on. In the food industry, twin-screw extruder has become an indispensable machine in the manufacturing engineering of raw material compounding and product homogenization. Compared with single screw extruder, twin-screw extruder is more superior in production and mixing, which has been widely used in food industry.

The twin-screw extruder makes full use of the characteristics of raw and auxiliary materials to produce healthy, nutritious and suitable for different groups of people in the deep processing of cereal starch, which facilitates the food industry production.

Twin screw extruder

Extrusion processing is carried out in a closed container. In the process of equipment operation, in addition to a little waste of raw materials needed for startup and shutdown, there will be no waste of raw materials, nor pollution caused by exhaust gas and waste water discharged to the environment.

Twin screw extruder is applicable to:

The raw materials for twin-screw extruder are widely used, such as corn, sorghum, rice, wheat and buckwheat.

Expanded food production line

Advantages of twin screw extruder:

  1. The side forced feeding technology is adopted in the twin-screw snack extruder, which increases the integrity of the material and greatly increases the output. The position and shape of the feed port also have a great influence on the feed efficiency. Under the same parameters, the feed area increases and the output increases. With the same feed area, the rectangular section has greater feed efficiency than the circular section. The side twin screw feeding is also based on such a consideration.
  2. Twin screw extruder has strong self-cleaning ability. Because the two screw sleeves are intertwined, a continuous space curve with uniform gap is formed at the contact part. With the synchronous rotation of the two, the space curve moves accordingly, forming the self-made function between the screws. At the same time, the sticking materials on the surface of the opposite screw thread are removed from each other, so as to ensure the characteristics of no residual materials.
  3. The kneading of the kneading block can stir the material internally. Increasing the number of kneading blocks in twin-screw extruder can increase the kneading times and improve the kneading quality. The internal pressure in the kneading area increases the kneading resistance, makes the kneading more intense, and obviously improves the kneading quality.
  4. The screw engagement of the international advanced co rotating twin-screw machine realizes equal clearance engagement, which greatly improves the screw’s self-made performance and processing capacity, and widens its application field.
  5. The twin-screw extruder has strong mechanical adaptability. For materials with high viscosity that require processing at low shear rate, shallow spiral groove screw can be used; for materials that require operating at high shear rate or high screw speed to improve the quality of extrusion and increase output, deep spiral groove screw is more suitable.

Large scale expanded food automatic production line

The extrusion technology can be used to process all kinds of expanded food and fortified food, and to process many food production fields, such as snack food, instant cereal food, convenience food, dairy products, etc., and by simply changing the mold, the product shape can be changed to produce products with different shapes and patterns. Therefore, the product range is wide, there are many kinds, the colors are neat, and a series of products can be formed It is conducive to the flexibility of production and marketing.