Union Special 81300A type Container Bag sewing machine

Two needle machine four thread safety stitch machine. Lower and upper feed. Adjusted for polypropylene sewing threads for matched seaming of very heavy bag fabrics make of jute, burlap or woven polypropylene with a 10 mm wide overedge stitch on the fabric edge and in a distance of 5mm (13 gauge) to this with an additional double locked stitch.

81300A1H: Safety stitch machine with built-in pneumatically operated thread chain cutter. Pneumatically operated presser foot and upper feed dog lifter. Pneumatic presser foot spring. Guides for polypropylene filler cord from the top and/or from below for sealing the needle punctures of the left needle. For matched side seams on very heavy container bags. Suction device is available as optional.