Dewatering machines for spent grains—such as those from beer or baijiu (Chinese liquor) production—are designed for the high-pressure filtration and dewatering of high-moisture residues. These machines offer powerful dewatering capabilities, low power consumption, and a long service life, capable of removing approximately 50% of the moisture content from the material.

Dewatering machines for traditional Chinese medicine (TCM) residues are used to remove moisture prior to the drying process. They can reduce the moisture content of TCM residues from 80–85% down to 50%, significantly easing the workload on drying equipment. Once dewatered, the residues can be fed directly into dryers, which substantially lowers energy consumption for drying and cuts production costs by nearly half. Furthermore, dewatering TCM residues helps prevent secondary pollution caused by dripping, reduces the volume of water required for cleaning (thereby easing the burden on wastewater treatment facilities), and lowers transportation costs by compressing the volume of the residues.