• Riya International

Ultra-clean-fiiter cartridges for edms

These cartridges use polyester fleece as filter rather than traditional paper based filters. Polyester fleece has the following advantages: It has a very even and dense structure; therefore, "bypass-effects" as known from paper based filters do not occur. Due to the special structure of the polyester fleece a filter density of up to 1m can be reached whereas paper based filters will no go beyond 3 - 5m. The polyester fleece has a higher mechanical stability than paper. This characteristic is even more pronounced when the filters are wet. Paper based filters sometimes tend to rip when exposed to sudden, high bursts of pressure as occur in modern wire EDM machines. Due to the higher mechanical reliability of the new polyester fleece this will not happen. During the filtration process with traditional paper based filters most particles make their way into the filter media itself and gradually reduce the effectiveness of the filtration process. Thus, the filter"s life cycle is reduced substantially. With polyester fleece, particles collect on the material"s surface and not inside of it. Once the pumps are turned off the particles sink to the bottom of the filter and collect there. Therefore, the usable filter surface stays clean for a longer period of time and the filter"s life cycle is significantly extended. The characteristics of this high-tech filter add up to a better overall quality for all EDM work.