GG457A135 SERIES ZIGZAG MACHINE ARE WITH HIGH SPEED AND EFFICIENCY,THEY ARE VERY EASY TO OPERATE. THE MACHINES ARE SUITABLE FOR UNDERWAER,KNITTING LINE AND LIGHT TO HEAVY WEIGHT MATERIALS.THERE ARE TWO MODELS TO BE SUPPLIED,ONE IS GG457A135-L FOR MEDIUM TO HEAVY WEIGHT MATERIALS, AND GG457A135-M FOR HEAVY WEIGHT MATERIALS.THE SPECIFICATION AS BELOW: MAX.SEWING SPEED: 5000 RPM STITCH LENGTH: 1.3MM(-L)AND2.5MM(-M) STITCH WIDTH: 8MM PRESSER FOOT LIFTER: 6-10MM