Abstract: A method and apparatus for separating ferrous metal particles from non-ferrous metal particles suspended in a liquid, such as a coolant from a machining operation, in which mixed particle containing liquid is discharged across a horizontal, non-magnetic separating surface; the magnetic ferrous metal particles are captured by a magnetic force exerted by an array of parallel magnets disposed underneath the separating surface, the non-magnetic non-ferrous metal particles are washed by the liquid into a collecting flume from where they can be passed to a filtering station for removal from the liquid, and the captured ferrous metal particles are scraped from the separating surface and conveyed to a ferrous metal discharge by a scraper conveyor which moves transversely to the discharge direction of the liquid.

Abstract: An apparatus and method for circulating coolant liquid between machine tools and a coolant filtering unit through an overhead return line. A small stream of clean coolant is diverted to a flush tank and the tank is pressurized, e.g., with compressed air. Periodic release of the pressurized liquid from the flush tank through the overhead return line flushes deposited chips and other sediments from the return line.

Abstract: A method and apparatus for separating ferrous metal particles from non-ferrous metal particles suspended in a liquid, such as a coolant from a machining operation, in which mixed particle containing liquid is discharged across a horizontal, non-magnetic separating surface; the magnetic ferrous metal particles are captured by a magnetic force exerted by an array of parallel magnets disposed underneath the separating surface, the non-magnetic non-ferrous metal particles are washed by the liquid into a collecting flume from where they can be passed to a filtering station for removal from the liquid, and the captured ferrous metal particles are scraped from the separating surface and conveyed to a ferrous metal discharge by a scraper conveyor which moves transversely to the discharge direction of the liquid.

Abstract: An apparatus and method for circulating coolant liquid between machine tools and a coolant filtering unit through an overhead return line. A small stream of clean coolant is diverted to a flush tank and the tank is pressurized, e.g., with compressed air. Periodic release of the pressurized liquid from the flush tank through the overhead return line flushes deposited chips and other sediments from the return line.