Peanut De-stoner is composed by suction device, hopper, sieving body, suction cover, supporting base, eccentric driven device etc. Automatic Peanut De-stoner Machine is used to remove the stone in the peanut. It adopts the gravity sorting principle which can be used for peanut kernels, wheat, soybean, rice, sunflower seeds and sesame seeds. Peanut De-stoner is composed of a suction device, hopper, sieving body, suction cover, supporting base, eccentric driven device, etc. It adopts a special rubber bearing at the joint between the reciprocating os- cillation devices. The rubber bearing has the advantage of durable, vibration absorption. It sucks the impurity from the top of the sieve, no dust outside, less pol- lution. The air volume can be adjusted within large scope, so peanut material can reach a good results and ready for eventual processing.