GN20 Series are plain-feed, flatbed machines suitable for over-edging/ over-seaming medium to heavy weight jute or PP/PE woven cloth bags for manufacturing bulk FIBC bags. The over-seam width can be varied from 10 to 18mm with replacement of some parts. The wide over-seam width of 18mm increases the overall seam strength and is ideal for making jumbo bags. Special Heavy Duty Machine for sewing on thick material.