Machine structure: Utilizing the differences in particle size, density, and aerodynamic properties among solid particles (e.g., sunflower seeds), the machine achieves screening and stone removal of materials through the reciprocal motion of a negative pressure suction device and an eccentric spring plate structure. Dust is reduced by a dust removal device.

Machine Functions and Features: This stone remover is designed for the continuous removal of impurities such as stones, sclerotia, and large pebbles 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 the impurities from the materials. Equipped with an adjustable suction hood, the machine maintains the materials 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 machine with convenient air volume adjustment. The inclination angle of the stone remover can be adjusted between 10-14 degrees, making it ideal for removing stones from various granular materials.