筒式精选机能够按照种子的不同长度比较精确地进行分选。它可以选出比要求的规格长或短的种粒,也可以去除半粒的种子和圆形杂草籽,并能从混杂的种子中选掉不用的种子(例如从小麦中选出大麦、从稻谷中选出大米),因而有其独特的用途。在种子加工过程中,经过筛选和筒选后,种子的尺寸就相当标准和一致,如有更高的要求,可再通过重力精选而得到比重均匀的种子,完成完整的种子精选工序。 Drum sorters are capable of sorting more accurately to different lengths of seed. It can pick out seeds that are longer or shorter than the required size, remove half seeds and round weed seeds, and pick out unused seeds from mixed seeds (for example, barley from wheat, Rice, rice), which has its unique use. In the process of seed processing, after screening and tube selection, the size of the seeds is quite standard and consistent. If there is higher requirement, the seeds with the same weight can be obtained through gravity selection to complete the complete seed selection process.