Spot Welded Filters

Spot welded filters are always made from several wire cloths in sequence, spot welded together. For these filtering discs the number and characteristics of each cloth, their sequence and the number of spot welds must be defined. Before punching the cloths are tested and stabilized. After assembly and spot welding, all the filtering discs are ultrasonic cleaned and packed in special vacuum packs. The wire cloths used for constructing the filtering discs may be made from all metal materials and alloys that can be drawn into wire, however the ones normally used, and generally available in stock, are in carbon steel or in AISI 304 or 316 stainless steel