Machine structure: Utilizing the differences in particle size, density, and aerodynamic properties among solid particles (e.g., sunflower seeds), the machine employs a negative pressure suction device and an eccentric spring plate structure to reciprocate, achieving the effect of screening and removing stones from the material. Additionally, a dust removal device is used to reduce dust emission.

Machine Functions and Features: This stone remover is designed for the continuous removal of impurities such as side stones, sclerotia, and large stones from granular materials like sunflower seeds and gourd seeds. It excels in removing the naked kernels from sunflower seeds. Under the action of the directional inclined reciprocating motion of the stone removal plate, the sinking stones move towards the stone outlet, while the materials floating on the upper layer roll towards the discharge end due to their own weight, effectively separating side stones, large stones, sclerotia, and naked kernels from the materials. Equipped with an adjustable air suction hood above the stone remover, the materials are kept in a suspended state, facilitating better separation of impurities. The use of a low-noise axial fan ensures no dust is emitted, maintains a similar negative pressure on the stone removal plate, and provides uniform airflow through the stone remover with convenient air volume adjustment. The inclination angle of the stone remover can be adjusted between 10-14 degrees, making it ideal for removing side stones from various types of granular materials.