KSS filter

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KSS filters are filters for cooling lubricants (abbreviated KSS). They serve to extend the service life of the cooling lubricant and also the service life of the tool used. In addition, their use improves the surface quality of the machined materials.

Cooling lubricant filters prevent the formation of germs in the cooling lubricant and thereby reduce the risk to health; overall this leads to cost savings in production.

Filter types

  • Fleece filter. A special cloth ( filter fleece ) lies on a filter bed and is discharged together with the filtered dirt. The filter fineness depends on the fleece used and can reach up to 10  µm .
  • Endless belt filters that use a plastic endless belt. The tape, usually a polyester cloth, is cleaned again after the filtering process and fed back into the filtering process. The filter fineness of the fabric is approx. 80  µm , but finer values ​​can also be achieved with the filter cake. During this filtering process, care must be taken to ensure that the belt is well flushed and that the seal is good.
  • Drum filters, which mostly use a stainless steel mesh. Only rarely in use today. The advantage is the filtration without auxiliary materials, so there are no further disposal costs. The biggest disadvantage is the drum, which can often not be cleaned, which causes the filter to sludge.
  • Heel basin or scraper basin. A good solution, especially for fine grindings, which can hardly be removed for fleece filtration. Disadvantage: Large basins are required and of course there is no defined fineness due to a fabric.
  • Magnetic filtration: If a large proportion of the chips react magnetically , a magnetic drum is often used. The cooling lubricant flows past the magnet and the ferritic chips form a filter bit. This allows non-magnetic parts to be filtered. Advantage: No use of filter aids. Disadvantage: No defined fineness due to a fabric.
  • Centrifuges : The cooling lubricant is centrifuged and the contaminants are deposited on the walls of a filter insert due to the rotation
  • Slotted filter : The cooling lubricant is passed over filter rods in filter towers. The contaminants stick to the surface of the rods, while the now cleaned coolant runs off through gaps in the rods

commitment

Coolant filters are used in the metalworking industry in different areas. They are used for grinding , honing , lapping , drilling , deep drilling , turning or milling . Either individual machines are supplied, machine groups or, as central systems, entire production halls. Depending on the task and the processing, the filter housings made of steel or stainless steel are supplied in various qualities.