TOSF型比重分级去石机是利用筛理和气流的联合作用进行分级去石， 主要用于原粮头道清理，去杂、去石，亦可用于其他谷类粮食的清理和种 子精选，该机具有生产效率高、清理效果好、噪音低、无粉尘外扬、操作 简单、维修方便等特点。
Model TQSF proportion classifying de-stoner classifies and gets rid of stones combining sifting with airflow. It is mainly used for crude grain primary clearing and getting rid of impurities or stones. What’s more, it can be used for other grain clearing and seeds picking. The machine has the features as follows: high-efficiency, good clearing result, low noises, no dust seen, convenient operation and maintenance.