80900 Double Needle Chain Sewing Machine This high-speed double-needle chainstitch machine features a closed automatic lubrication system for smooth, low-noise operation. With its up/down synchronous feeding mechanism, it can sew two parallel lines and leak-proof strips in a single pass without changing bobbins, delivering consistent, neat stitching. It offers a 30% increase in tensile strength and reduces power consumption by 1/3 with its servo motor. Optimized with a flat-frame design, it is ideal for sewing the circumferences of bulk bag inlet/outlet openings and bottom covers, making it perfect for industrial PP bulk bag production.
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