Max. Speed 1,900rpm Seam Single thread chain stitch Stitch Width 8.5mm (fixed) Bag Material Paper, Jute, PP Thickness Jute bag?8mm Cutter Half automatic thread cutter Needle DN1 #25 Oiling by hand, Oil pump Oil Tellus?#32 NewLong industrial NP-7A Portable Single Thread Chainstitch Bag Closer Machine, Made in Japan For Closing Paper, Cotton, Polyester, Plastic, Vinyl, Canvas, Jute, Burlap, Coffee, and Synthetic Fabric and Material Bags and Production Lines. Also for Banners, Tarps, Covers, Prefolded Hems. For closing of all kinds of bags. Single thread chain stitch, with simple mechanism for easier maintenance. NP-7A now comes with a tough, durable plastic handle and auto-lubrication, plus automatic thread cutting. The portable bag closer is equipped with a safety plastic handle for insulation and features an oil pump lubrication system and automatic thread cutting. Oil lines direct lubricant to main moving elements.