The positive pressure specific gravity selection machine is more advanced for selecting soybeans. The comparison between the two machines is as follows:
1. The positive pressure specific gravity machine is based on the material produced under the action of aerodynamic force and vibration friction. The principle of specific gravity deflection, by adjusting technical parameters such as wind pressure and amplitude, makes materials with larger specific gravity sink to the bottom and move from low to high against the screen surface. It is suitable for removing mung beans, soybeans, corn, sunflower seeds and various legumes. Impurities with lighter specific gravity such as grains and smut grains in other cereals can be screened by frequency conversion speed regulation according to the size of grain particles and dry humidity.
2. The positive pressure specific gravity concentrator is based on the dual action of air flow and vibration friction of the material, and adjusts technical parameters such as wind pressure and amplitude to make the material with a larger specific gravity sink to the bottom and stick to the screen. When moving toward high places, materials with smaller specific gravity are suspended on the surface and move toward lower places, thereby achieving the purpose of separation according to specific gravity. Suitable for selected soybeans, etc.