20KHz Ultrasonic Sewing Machine For Disposable Protective Suit Welder. High Efficiency Welding: 5 to 6 times faster than traditional machines with no burr or curl. Needle-Free Sewing: Ultrasonic automatic sewing saves time on changing needles and thread. Customizable Pattern: Flower wheel designed according to customer pattern requirements. Versatile Applications: Suitable for lace, ribbons, masks, non-woven bags, and disposable suits. Durable Construction: Uses special steel wheels ensuring seal edges do not crack or damage cloth. Easy Operation: Simple to operate, suitable for ordinary sewing workers. Adjustable Speed: Speed ranges from 0-32 m/min for precise control. CE Certified: Machine meets CE safety and quality standards.