Paper Band Filter vs Cartridge Filter for Deep Hole Drilling
Coolant filtration is critical for deep hole drilling. Chips that recirculate through the coolant will damage the drill edge and score the bore surface, causing poor surface finish and short tool life. The two common filter types for deep hole drilling coolant systems are paper band filters and cartridge filters. I have used both extensively and each has strengths depending on the application. Filter Comparison: Paper Band vs Cartridge Paper band filters use a continuous roll of filter paper that advances as the filter media loads up with chips. The paper catches particles down to 20 to 50 microns. The dirty paper is discarded and clean paper feeds in automatically. Cartridge filters use replaceable filter elements with ratings down to 5 to 20 microns. ...