As we know, beans are always unavoidably mixed with various kinds of impurities in growing, harvesting, threshing, airing, storage, transporting and processing. The impurities have influence and damage to beans processing and beans products quality. Therefore, we need to clean beans with bean cleaning machine before bean processing.
 

The technology that can separate the impurities from the unprocessed beans is called bean cleaning. And bean cleaning always needs the aid of related measures or tools to separate impurities according to the nature difference between beans and impurities. All of the foreign matters or the bean granules without any edible value that are mixed with beans are called impurities. Part of the impurities which are removed from the beans can be processed for utilization. Without impurities, beans can be processed more efficiently and bean food quality is higher. Besides, BEAN CLEANING MACHINE can protect bean processing equipment to work normally. For example, the stones or metals can damage bean processing equipment in processing and this will directly increase equipment maintenance cost and affect processing time. Bean cleaning machine can also protect production environment and workers' health. If there has dust and light impurities in the beans, then the dust may pollute workshop environment and furtherly afffect workers' health.

Therefore, bean cleaning machine function is to remove the impurities from beans to ensure efficient bean processing, high quality of bean end products, bean processing equipment normal running and bean processing workshop environment.