This system is designed to maximize the action of gravity to bring the consumption of filter paper to a minimum. It produces thick cakes.•Changes filters automatically.•Realizes an all-automatic filtration process, in which case filter paper is automatically changed when it is detected that the mesh of the paper has been clogged. •Allows for a waste paper rewinder so it can reduce work load and keep the environment clean.•Is suitable for filtration of high-density liquids.•Realizes a large capacity of automatic filtration in combination with a cyclone, where it makes it possible to bring the consumption of filter paper to an extremely small quantity. •Requires a structure that has a water depth as large as possible to maximize the action of gravity. •Deals with high-temperature environments; it is possible to make systems to handle high temperatures up to as high as 240oC.