Abstract: To adapt to the growing trend of using large-sized dewatering equipment in coal preparation plants, a 140 m² pressure filter is designed on the basis of the 120 m² version originally used. A description is made in the paper of the structural make-up and working principle of the filter with the focus centered on its main structural design and the requirement for the design of its key components. Following that, an analysis is made of the main factors affecting the performance of the pressure filter.