Introduction of Soybean Extruder Machine

Soybean extruder machine is mainly used for pretreatment of soybean, corn, soybean meal, etc. After being expanded and disinfected, soybeans can be directly used for pressing or leaching to extract oil. The extruder machine is an ideal pretreatment equipment for the oil to puff the green embryo or the pre-pressed cake before leaching with solvent. After being expanded and disinfected, soybeans can be directly used for pressing or leaching to extract oil. The soybean extruder machine is an essential piece of equipment in modern soybean oil extraction, offering numerous benefits in oil yield, product quality, and operational efficiency.

oilseeds puffing machine and its main hardware

Dry Material Extruding Machine Features

Dry material extruding machine has a wide application range, strong applicability, adjustable temperature, and pressure, it can extrude various single raw materials and crushed materials. It can sterilize, antivirus, improve quality, and improve digestion and absorption rate.

  • The HBK series extruding machine is a dry puffing machine that can be self-cooked without an external heat source and is easy to use.
  • Vulnerable parts are treated with high-strength surfaces to extend service life and reduce customer costs.
  • The adjusted temperature and pressure can be adapted to different oil production standards, which realizes these advantages of effectively sterilizing and detoxifying, changing anti-nutritional factors, reducing the degradation of nutrients, and improving the digestibility of protein and starch.
  • The puffed oil material can be dehydrated by 3-6%.
  • The change in the structure of the extruded soybean can reduce the solvent consumption and the dry residue rate of the soybean meal, and the productivity of the extractor is greatly improved.

puffed soybeans for making soybean oil

Working Principle of Soybean Extruder

The soybean extruder’s main screw shaft consisting of broken tooth helices rotates in the puffing cavity of the extruder, which causes mixing, extrusion, heating, shearing, raking, and the like on the material. The oilseed cells are completely destroyed, and the intracellular oil is fully exposed under high temperatures and high pressure. Next, the oil material is extruded from the die hole, and the temperature & pressure in the die hole are suddenly reduced to the normal range, and the water is rapidly evaporated to cause the oil material to puff. As a result of the expansion, it is easier to infiltrate the solvent cells into the oil cells and the oil is easier to be leached from the material cells, thereby improving the leaching and desolvation efficiency. What’s more, moderate extruding also increases the bulk density of the oil material (compared to the raw embryo), thus increasing the processing capacity of the leaching equipment. Since the oil material stays in the oil extruder for a short time, it is extremely advantageous for protecting the quality of the raw material.

Soybean Extruder Machine

Soybean Extruder Machine

Operation of a Soybean Extruder Machine

Oil Seed Puffing Machine Application