Servo technology increases filter production by 70%

摘要

On a new machine to produce pocket liners which are used in air handling systems, servo drives have been used to position the sewing heads, working at line speeds of 24m/min. For its new generation machines to manufacture air filters, Keilmann Group (KSL) in Lorsch near Frankfurt chose servo drives instead of the frequency inverters used on previous machines, and achieved a 70% increase in output. The new KSL FPS 300 machine produces what are known as pocket filters, which consist of a number of panels of filter material that are cut to a waisted profile and stitched together. The servo drives control the material infeed and outfeed plus positioning of sewing heads which run at up to 600 stitches per minute.