Manufacturers of HSS tools reduce their operating costs by up to € 60,000 per year at a filtration capacity of 1000 l/min. This potential applies to tools, filter consumables, energy and disposal. From a technological standpoint, the systems stand out thanks to their special two-phase filtration system: 1) Large particle separation using the continuous belt filter. 2) Ultra-fine filtering using MicroPur®. An especially effective sludge concentrator works in parallel with this. It removes the back-flushed filter concentrate from the system and prevents the concentration of ultra-fine particles.