The Jack F5 D-D is an industrial single-needle lockstitch machine designed for efficient and reliable sewing. Built with a direct-drive servo motor, it reduces vibration, saves energy, and delivers consistent stitch quality at high speeds. With automatic features such as needle positioning, thread trimming, and reverse stitching, it improves productivity while maintaining precision. The F5 D-D is suitable for sewing light to medium fabrics, making it a versatile option for apparel production. Its compact, low-noise design ensures comfortable long-hour operation for both professionals and workshops.