Suction extraction equipment for the continuous removal of dust and chip contaminants from production machining and process line operations can be supplied by M Buttkereit Ltd. Their Ringler range of products include both mobile and static mounted equipment, designed for maintaining environmentally safe conditions when cutting or machining graphite, asbestos, plastics, metals and other minerals or materials that generate inflammable, toxic and otherwise hazardous or dangerous LTV residues. With a 99.997% filtration efficiency, including automatic filter cleaning, there is a very low carry-over of contaminants in the exhaust air for optimum health and safety working conditions.