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Prab’s candle filter is designed to remove fine particulate from spent oil in EDM, tungsten carbide tool grinding, honing machine and bearing grinder applications. The filter uses a permanent media in a long cylinder that houses more than 10,000 thin membrane wafers. These membranes are said to effectively and consistently capture grinding swarf ranging in size from 1 to 3 microns. The swarf and oil is purged into an external receptacle to ease collection and recycling.
According to the company, the filters operate with virtually no downtime for maintenance. The self-cleaning, air-driven backwash system automatically clears dirt and debris, enabling the filter to perform reliably during long production runs, the company says. An optional chiller ensures constant fluid temperature that varies only 1° to 3°F to maximize tool life and part quality.
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