KEESTAR Big Bag Sewing Machine is two needle four thread chain stitch bulk bag sewing machine Container bag sewing machine equipped with pneumatic press foot and upper feed dog lifter system and pneumatic operated hot cutter left of the needle. Big sack sewing machine equipped with KEESTAR® "PES" pneumatic easy solution case. Bulk sack sewing machine head only. Container sack sewing machine's stitch length: 10mm sack sewing machine's max. speed: 1,400rpm