Profile: Graymills Corporation is a pump manufacturer for machine tool coolants. In addition to ink pumps and ink filters, we also provide viscosity controls, ink tanks, hoses and fittings. We worked with fledgling flexographic industry to create pumps, filters and accessories specifically for converters. We offer a wide range of parts washing equipment and parts washing fluids. We also provide a wide selection of centrifugal pumps, gear pumps and double diaphragm pumps for industrial applications.