A vibro motor is located underneath the frame, and within the frame, there is a two-layer sieve system positioned with appropriate spacing. The frame body is protected by special vibration-absorbing springs. The machine body has an inclined structure, and the products oscillate within the machine due to the vibrational motion. In the upper sieve, products with a high specific weight, such as wheat and stones, remain, while in the lower sieve, materials like trash, paper, straw, and soil pass through and are separated.