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Heavy duty two needle, four thread safetystitch machine  with high needle throw.With top and bottom feed for matched seams on heavy bag fabric. Needle distance5mm, overedge seam width 19 mm, seam width overall 24 mm. With guide for fillercord from the top and / or below for sealing the needle punctures of the leftneedle. Electro-pneumatically operated presser foot and upper feed dog lifter.Pneumatic presser foot spring. With built-in electro-pneumatically operated hotthread chain cutter left of the needle for separating the thread chain frombelow.