A device for treating cooling lubricants and chips of machine tools, comprising a container (1) for receiving the untreated mixture of cooling lubricant liquid and solids, an endless conveyor (6) installed in the container (1) for carrying off the collected solids from the container, at least one filtration unit (20) disposed in the container (1) for separating the cooling lubricant liquid from the solids, whereby the filtration unit (20) is formed so as to be mobile and can be positioned as an insertion in the container (1) over the lower run (11) of the endless conveyor (6).
