This machine is double needle, four thread safety-stitch machine with a sewing capacity up to 22mm and an over-edging seam of up to 15mm, interchangeable with union special 81300a. It is the practical solution of container bag (fibc) /jumbo bags, bulk bags manufacturers, for producing side and bottom seams on very heavy weight jute, burlap and woven polypropylene bags. 7-81300a1h equipped with a pneumatically operated presser foot and upper feed dog lifter and also a pneumatic presser foot spring. 0.185 cb.M, 52 kgs
