A pressure filter is a mechanical equipment that utilizes a special filtering medium to apply pressure to the material, allowing the liquid to渗析 out. It is a commonly used solid-liquid separation device. It was first applied in chemical industry production in the early 18th century and is still widely used in industries such as chemicals, metallurgy, dye, food, brewing, ceramics, and environmental protection. The filter plates are characterized by stable performance, easy operation, safety, and effort-saving; the metal squeezing cylinder is processed from seamless steel pipes and precision cast with plastic steel filter plates, which are resistant to high temperature and pressure, and durable.