TQSX型吸式比重去石机是利用筛体的往复运动，在负压气流的作用下达到麦粒与石 子分离之目的，该机具有运转平稳，耗能低．去石效率高，无分尘外扬等优点，广泛用于 去除小麦、玉米、花生、大豆、稻谷等粮食中的并肩石。
Model TQSX draw-type gravity de-stoner makes use of screen frame reciprocating in order to separate kernels and stones. It has many advantages such as working smoothly, low power consumption, high-efficiency and no dust seen in workshop. It is used widely for getting rid of stones from wheat, corns, peanuts and paddies.