... 1-7barWelding area200mm250mm280mm200mm250mm280mm300mm320mmSize 2250*850*800Net weight110kg125kg135kg101kg125kg135kg340kg350kgApplication fields:(ultrasonic plastic seam welder high efficiency) Widely used in the automotive industry, ... , tanks,pallet plates. Plastic electronics: prepaid water meters, communications equipment, atheism phone, mobile phone accessories, cell phone case, battery case ...