The ultrasound cutting machine (cutter) for plastic woven rice fabrics bag is composed of ultrasound transducer (converter) with cover , fan,booster, horn(sonotrode), generator, anvil and rack. There is a fan to cooling ultrasound transducer (converter), ensure it can work efficiently for a long time.  ultrasound energy to the vibration of ten million times, with 20 mm wide welding, the blade will cut it in half at the same time,  so the cutting point will  not rough selvedge like conventional cutting, will be very smooth.