... ultrasonic without needle and thread non woven shopping bag welding machine Output power : 2500WPower Input : 200V/50HzOutput frequency : 15KHzWorking ... mould : 0-100 mmSize of machine ( L * W * H ) :1300 * 650 * 1500 mmWeight of machine : 140 KgDescription:Lace clothes, ... shopping bag welding machineFeatures:1.Use ultrasonic energy to cut, weld, seal seam, hole, emboss, stitch, slit, form. ...